Dr. Pankaj Topiwala Profile

Dr. Pankaj Topiwala

President/Chief Executive Officer at FastVDO Inc

SPIE Involvement:

Conference Program Committee | Author

Publications (71)

Proceedings Article | 3 October 2022 Presentation + Paper

Advanced video quality assessment of leading codecs: AV1, VVC, and their draft successor designs

P. Topiwala, W. Dai

Proceedings Volume 12226, 122260C (2022) https://doi.org/10.1117/12.2637916

KEYWORDS: Video, Video compression, Visualization, Video coding, Quality measurement, Standards development

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Proceedings Article | 3 October 2022 Presentation + Paper

Bootstrapping HDR video quality analysis from SDR via data-adaptive grading

P. Topiwala, W. Dai

Proceedings Volume 12226, 122260G (2022) https://doi.org/10.1117/12.2633820

KEYWORDS: High dynamic range imaging, Video, Quality measurement, RGB color model, Databases, Video compression, Video processing, Video coding, Signal processing, Image quality

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Proceedings Article | 3 October 2022 Presentation + Paper

H.264 or H.265 for lossy surveillance video transmission: a database study

P. Topiwala, W. Dai

Proceedings Volume 12226, 122260V (2022) https://doi.org/10.1117/12.2633819

KEYWORDS: Video, Video surveillance, Forward error correction, Surveillance, Databases, Wireless communications, Video coding, Signal to noise ratio, Error analysis

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Wireless video communications are a growing segment of communications in both commercial and defense domains. Due to the lossy nature of wireless channels, they require powerful error correction for successful communications. In the commercial domain, ever more people worldwide use video chat, and watch videos on portable wireless devices, while in defense domains, surveillance assets are growing rapidly in numbers, providing real-time motion imagery intelligence. In both domains, the transmission of high-quality video is of vital importance, and a variety of both source and channel codecs have been developed, separately for each domain and application. Throw in tight bandwidth constraints (e.g., 500 kbs), and the challenge intensifies. To give a fair chance to H.264, to operate at such low rates, we first restrict (convert) the videos to 480p resolution. In this paper, we explore the space of video codecs, encryption, channel codecs, and lossy channel models, and use a database of aerial surveillance video we collected, to find the best practices within this large search space. After some preliminary material, we focus attention on the two most common video codecs in use: H.264/AVC, and H.265/HEVC, ask which is better to use in lossy comms, where we mainly limit bandwidth to just 500 kbs. We perform simulations in Rayleigh fading channel models, use signal-to-noise (SNR) levels that stress transmissions, and use powerful Polar and Low-Density Parity-Check (LDPC) codes to correct errors. Since the channel varies with time (as does our simulation), we aggregate over 100 simulations for statistical convergence. Without channel errors, H.265 would be easily preferred due to its superior coding efficiency. With errors, this is still true in our simulations, but the result is far more subtle, and unexpectedly depends in part on using encrypted video. H.264 is in fact more resilient when there are high errors and without encryption, while as quality improves to usable levels, H.265 takes over. With encryption, H.265 wins at all channel Eb/No (~SNR) levels, and even pro

Proceedings Article | 5 August 2021 Presentation

Panel Discussion on Advanced Video Compression and Applications

Pankaj Topiwala, Alan Bovik, Benjamin Bross, Kiho Choi, Edouard François, Michael Horowitz, Jan Ozer, Gary Sullivan

Proceedings Volume 11842, 1184202 (2021) https://doi.org/10.1117/12.2604815

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Proceedings Article | 1 August 2021 Presentation + Paper

HDR video coding for aerial videos with VVC and AV1

P. Topiwala, W. Dai

Proceedings Volume 11842, 118420J (2021) https://doi.org/10.1117/12.2598712

KEYWORDS: Video, High dynamic range imaging, Video coding, Video compression, Earth Viewing Camera, Computer programming, Quantization, Bragg cells, Standards development, Head

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Proceedings Article | 1 August 2021 Presentation + Paper

VMAF and variants: towards a unified VQA

P. Topiwala, W. Dai, J. Pian, K. Biondi, A. Krovvidi

Proceedings Volume 11842, 118420F (2021) https://doi.org/10.1117/12.2594772

KEYWORDS: Video, Video processing, Video compression, Neural networks, Computer programming, Video coding, Databases, Feature extraction, Algorithm development, Visualization

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Proceedings Article | 1 August 2021 Presentation + Paper

Bandlimited wireless video communications over lossy channels

P. Topiwala, W. Dai, K. Bush

Proceedings Volume 11842, 118420G (2021) https://doi.org/10.1117/12.2594779

KEYWORDS: Video, Forward error correction, Video surveillance, Signal to noise ratio, Wireless communications, Error analysis, Defense and security, Software development, Signal attenuation, Distortion

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Proceedings Article | 10 September 2020 Presentation + Paper

Wireless video communications over lossy channels

P. Topiwala, W. Dai, K. Bush

Proceedings Volume 11510, 115101E (2020) https://doi.org/10.1117/12.2571310

KEYWORDS: Video, Wireless communications, Planets, Information and communication technologies, Data compression, Video coding, Error analysis

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Proceedings Article | 9 September 2020 Presentation + Paper

Deep learning and video quality analysis: towards a unified VQA

P. Topiwala, W. Dai, J. Pian

Proceedings Volume 11510, 115100V (2020) https://doi.org/10.1117/12.2571309

KEYWORDS: Video, Image quality, Video processing, Visualization, Motion measurement

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Proceedings Article | 8 September 2020 Presentation + Paper

Video quality vs. video usability in the era of surveillance

P. Topiwala, W. Dai

Proceedings Volume 11510, 1151016 (2020) https://doi.org/10.1117/12.2571311

KEYWORDS: Video surveillance, Video, Surveillance, Quality measurement, Artificial intelligence

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Proceedings Article | 8 September 2020 Presentation + Paper

Towards real-time augmented reality with edge servers and 5G communications

P. Topiwala, W. Dai

Proceedings Volume 11510, 115100A (2020) https://doi.org/10.1117/12.2571312

KEYWORDS: Telecommunications, Augmented reality, Virtual reality, Digital imaging, Explosives, Visualization

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Proceedings Article | 6 September 2019 Presentation + Paper

Data Adaptive HDR Compression in VVC

Pankaj Topiwala, Madhu Krishnan, Wei Dai

Proceedings Volume 11137, 1113713 (2019) https://doi.org/10.1117/12.2530553

KEYWORDS: High dynamic range imaging, Video, Video coding, Video processing, Visualization, Data compression, Video compression, Computer programming, Signal processing

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Proceedings Article | 6 September 2019 Presentation + Paper

Performance comparison of VVC, AV1 and EVC

Pankaj Topiwala, Madhu Krishnan, Wei Dai

Proceedings Volume 11137, 1113715 (2019) https://doi.org/10.1117/12.2530559

KEYWORDS: Video coding, Video, Digital filtering, Standards development, Video compression, Visualization

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Proceedings Article | 6 September 2019 Paper

Deep learning and video quality analysis

P. Topiwala, M. Krishnan, W. Dai

Proceedings Volume 11137, 111370T (2019) https://doi.org/10.1117/12.2530557

KEYWORDS: Video, Video compression

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Proceedings Article | 17 September 2018 Presentation + Paper

HDR compression in the JVET codec

Pankaj Topiwala, Madhu Krishnan, Wei Dai

Proceedings Volume 10752, 1075210 (2018) https://doi.org/10.1117/12.2322028

KEYWORDS: High dynamic range imaging, Video, Video coding, Video processing, RGB color model, Visualization, Video compression, Computer programming, Signal processing, Standards development

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Proceedings Article | 17 September 2018 Presentation + Paper

Deep learning techniques in video coding and quality analysis

Pankaj Topiwala, Madhu Krishnan, Wei Dai

Proceedings Volume 10752, 1075211 (2018) https://doi.org/10.1117/12.2322025

KEYWORDS: Video, Video compression, Video coding, High dynamic range imaging, Computer programming, Image quality, Standards development, Subjective video quality evaluation

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Proceedings Article | 17 September 2018 Presentation + Paper

Performance comparison of VVC, AV1, and HEVC on 8-bit and 10-bit content

Pankaj Topiwala, Madhu Krishnan, Wei Dai

Proceedings Volume 10752, 107520V (2018) https://doi.org/10.1117/12.2322024

KEYWORDS: Multimedia signal processing, Video, Video coding, Standards development, Video compression, Digital filtering

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Proceedings Article | 19 September 2017 Presentation + Paper

Advanced single-stream HDR coding using JVET JEM with backward compatibility options

Pankaj Topiwala, Wei Dai, Madhu Krishnan

Proceedings Volume 10396, 103960E (2017) https://doi.org/10.1117/12.2273844

KEYWORDS: High dynamic range imaging, Video, Video coding, Standards development, Image transmission, Image compression

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Proceedings Article | 19 September 2017 Presentation + Paper

FastVDO enhancements of the AV1 codec and comparison to HEVC and JVET codecs

Pankaj Topiwala, Wei Dai, Madhu Krishnan

Proceedings Volume 10396, 103960D (2017) https://doi.org/10.1117/12.2273835

KEYWORDS: Video coding, Video, High dynamic range imaging, Virtual reality, Image transmission, Image compression

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Proceedings Article | 19 September 2017 Presentation + Paper

Performance comparison of AV1, HEVC, and JVET video codecs on 360 (spherical) video

Pankaj Topiwala, Wei Dai, Madhu Krishnan, Adeel Abbas, Sandeep Doshi, David Newman

Proceedings Volume 10396, 1039609 (2017) https://doi.org/10.1117/12.2272119

KEYWORDS: Video coding, Virtual reality, Bragg cells, Video compression, Video, Image transmission, Image compression, Video processing, Image processing

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Proceedings Article | 27 September 2016 Presentation + Paper

Performance comparison of HEVC reference SW, x265 and VPX on 8-bit 1080p content

Pankaj Topiwala, Wei Dai, Madhu Krishnan

Proceedings Volume 9971, 99711C (2016) https://doi.org/10.1117/12.2240255

KEYWORDS: Video coding, Computer programming, High dynamic range imaging, Video, Distortion, Standards development, Video compression, Software development, Detection and tracking algorithms, Computer simulations

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Proceedings Article | 27 September 2016 Paper

FV10: an efficient single-layer approach to HDR coding, with backward compatibility options

Pankaj Topiwala, Wei Dai, Madhu Krishnan

Proceedings Volume 9971, 997109 (2016) https://doi.org/10.1117/12.2235761

KEYWORDS: High dynamic range imaging, Video, RGB color model, Video coding, Signal processing, Video processing, Electronic filtering, Optical filters, Linear filtering, Visualization

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Proceedings Article | 27 September 2016 Presentation + Paper

Expert viewing protocol performance study: the case of subjective evaluation of HDR coding

Vittorio Baroncini, Giacomo Baroncini, Pankaj Topiwala

Proceedings Volume 9971, 99710I (2016) https://doi.org/10.1117/12.2240257

KEYWORDS: High dynamic range imaging, Video coding, Information technology, Molybdenum, Data conversion, Video, Visualization, Field emission displays, Neodymium, Silicon

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Proceedings Article | 27 September 2016 Presentation + Paper

FVP10: enhancements of VPX for SDR/HDR applications

Pankaj Topiwala, Wei Dai, Madhu Krishnan

Proceedings Volume 9971, 99711D (2016) https://doi.org/10.1117/12.2240248

KEYWORDS: High dynamic range imaging, Video, Transform theory, Video coding, Computer programming, Visualization, Optical filters, Chromium, Linear filtering, Image filtering

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Proceedings Article | 22 September 2015 Paper

Chroma sampling and modulation techniques in high dynamic range video coding

Wei Dai, Madhu Krishnan, Pankaj Topiwala

Proceedings Volume 9599, 95990D (2015) https://doi.org/10.1117/12.2188739

KEYWORDS: High dynamic range imaging, Stereolithography, RGB color model, Video coding, Video, Gaussian filters, Standards development, Francium, Computer programming, Electronic filtering

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Proceedings Article | 2 September 2009 Paper

A new resampling approach for optimal reconstruction

Lijie Liu, Trac Tran, Pankaj Topiwala

Proceedings Volume 7443, 744310 (2009) https://doi.org/10.1117/12.828226

KEYWORDS: Filtering (signal processing), Scalable video coding, Electronic filtering, Signal processing, Image processing, Quantization, Video, Image compression, Image filtering, Optimal filtering

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Proceedings Article | 2 September 2009 Paper

Video super-resolution: from QVGA to HD in real-time

Raj Mudigoudar, Srinath Bagal, Zhanfeng Yue, Pramod Lakshmi, Pankaj Topiwala

Proceedings Volume 7443, 74430W (2009) https://doi.org/10.1117/12.828224

KEYWORDS: Super resolution, Lawrencium, Field programmable gate arrays, Image resolution, Video, Simulink, Image registration, Video surveillance, Image processing, Reconstruction algorithms

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Proceedings Article | 2 September 2009 Paper

A real-time H.264 high 4:4:4 codec

Pankaj Topiwala, Anand Raju, Deepak Singh

Proceedings Volume 7443, 74430Z (2009) https://doi.org/10.1117/12.828220

KEYWORDS: Video, Video compression, Video coding, Image compression, Computer programming, Visualization, Video surveillance, Standards development, Infrared radiation, Infrared imaging

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Proceedings Article | 7 May 2009 Paper

An improved real time superresolution FPGA system

Pramod Lakshmi Narasimha, Basavaraj Mudigoudar, Zhanfeng Yue, Pankaj Topiwala

Proceedings Volume 7328, 732806 (2009) https://doi.org/10.1117/12.818871

KEYWORDS: Super resolution, Lawrencium, Field programmable gate arrays, Simulink, Image resolution, Image registration, Image processing, Reconstruction algorithms, Video, Image filtering

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Proceedings Article | 29 April 2009 Paper

Improved target tracking in aerial video using particle filtering

Zhanfeng Yue, Pramod Lakshmi Narasimha, Pankaj Topiwala

Proceedings Volume 7307, 73070K (2009) https://doi.org/10.1117/12.818852

KEYWORDS: Particles, Video, Video surveillance, Detection and tracking algorithms, Electronic filtering, Particle filters, Affine motion model, Systems modeling, Surveillance, Monte Carlo methods

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Proceedings Article | 28 April 2009 Paper

Summarization and visualization of target trajectories from massive video archives

Zhanfeng Yue, Pramod Narasimha, Pankaj Topiwala

Proceedings Volume 7341, 73410R (2009) https://doi.org/10.1117/12.818848

KEYWORDS: Video, Visualization, Detection and tracking algorithms, Particles, Motion estimation, Human-machine interfaces, Optical tracking, Image processing, Fourier transforms, Particle filters

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Proceedings Article | 13 April 2009 Paper

An improved multi-frame super-resolution technique

Pramod Lakshmi Narasimha, Zhanfeng Yue, Pankaj Topiwala

Proceedings Volume 7340, 73400I (2009) https://doi.org/10.1117/12.818860

KEYWORDS: Image resolution, Lawrencium, Super resolution, Image registration, Image processing, Reconstruction algorithms, Data modeling, Simulink, Video, Field programmable gate arrays

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Proceedings Article | 13 September 2008 Paper

Modern transform design for advanced image/video coding applications

Trac Tran, Pankaj Topiwala

Proceedings Volume 7073, 70730H (2008) https://doi.org/10.1117/12.798304

KEYWORDS: Image compression, Wavelets, Matrices, Video coding, Multimedia, Filtering (signal processing), Wavelet transforms, Signal processing, Electronic filtering, Image processing

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Proceedings Article | 17 April 2008 Paper

A distributed automatic target recognition system using multiple low resolution sensors

Zhanfeng Yue, Pramod Lakshmi Narasimha, Pankaj Topiwala

Proceedings Volume 6968, 69680K (2008) https://doi.org/10.1117/12.778104

KEYWORDS: Unmanned aerial vehicles, Automatic target recognition, Sensors, Detection and tracking algorithms, Video, Cameras, Lawrencium, Video processing, Super resolution, Optical resolution

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Proceedings Article | 15 April 2008 Paper

An efficient real time superresolution ASIC system

Dikpal Reddy, Zhanfeng Yue, Pankaj Topiwala

Proceedings Volume 6957, 695709 (2008) https://doi.org/10.1117/12.778108

KEYWORDS: Lawrencium, Super resolution, Image registration, Image resolution, Image processing, Simulink, Reconstruction algorithms, Field programmable gate arrays, Filtering (signal processing), Electronic filtering

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Proceedings Article | 14 April 2008 Paper

SmartCapture: a compact video capture, encoding and streaming technology for UAVs

Wei Dai, Pankaj Topiwala

Proceedings Volume 6946, 69460F (2008) https://doi.org/10.1117/12.778744

KEYWORDS: Video, Video surveillance, Unmanned aerial vehicles, Video compression, Computer programming, Video coding, Receivers, Analog electronics, Surveillance, Transmitters

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Proceedings Article | 24 March 2008 Paper

A robust real-time object detection and tracking system

Zhanfeng Yue, Pramod Lakshmi Narasimha, Pankaj Topiwala

Proceedings Volume 6971, 697108 (2008) https://doi.org/10.1117/12.778103

KEYWORDS: Detection and tracking algorithms, Video, Sensors, Particles, Feature extraction, Surveillance, Visualization, Information visualization, Solids, Electro optical modeling

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Proceedings Article | 17 March 2008 Paper

Real-time object-based image registration using multilayer perceptron

Pramod Narasimha, Zhanfeng Yue, Pankaj Topiwala

Proceedings Volume 6974, 697409 (2008) https://doi.org/10.1117/12.778091

KEYWORDS: Image registration, Cameras, Infrared cameras, Infrared imaging, Neural networks, Image restoration, Network architectures, Algorithm development, Optimization (mathematics), Matrices

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Proceedings Article | 8 October 2007 Paper

From 16-bit to high-accuracy IDCT approximation: fruits of single architecture affliation

Lijie Liu, Trac Tran, Pankaj Topiwala

Proceedings Volume 6696, 669612 (2007) https://doi.org/10.1117/12.740216

KEYWORDS: Error analysis, Computer programming, Personal protective equipment, Quantization, Video coding, Distortion, Bismuth, Binary data, Video, Reconstruction algorithms

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Proceedings Article | 24 September 2007 Paper

Rate adaptive live video communications over IEEE 802.11 wireless networks

W. Dai, Sachin Patil, Pankaj Topiwala, David Hench

Proceedings Volume 6696, 66960O (2007) https://doi.org/10.1117/12.776810

KEYWORDS: Video, Video coding, Receivers, Telecommunications, Wireless communications, Data communications, Control systems, Analog electronics, Video compression, Environmental sensing

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Proceedings Article | 24 September 2007 Paper

Performance comparison of leading image codecs: H.264/AVC Intra, JPEG2000, and Microsoft HD Photo

Trac Tran, Lijie Liu, Pankaj Topiwala

Proceedings Volume 6696, 66960B (2007) https://doi.org/10.1117/12.775472

KEYWORDS: JPEG2000, Image compression, Chromium, Video coding, Video, RGB color model, Video compression, Wavelets, Image resolution, Bridges

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Proceedings Article | 7 May 2007 Paper

Real-time vehicle detection in infrared and visible images

Changhua Yu, Anlei Dong, Zhanfeng Yue, Pankaj Topiwala

Proceedings Volume 6567, 65670F (2007) https://doi.org/10.1117/12.718962

KEYWORDS: Infrared imaging, Visible radiation, Infrared detectors, Sensors, Feature extraction, Detection and tracking algorithms, Infrared sensors, Infrared radiation, Visualization, Information visualization

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Proceedings Article | 9 April 2007 Paper

Real-time multi-sensor based vehicle detection using MINACE filters

Pankaj Topiwala, Avinash Nehemiah

Proceedings Volume 6574, 65740I (2007) https://doi.org/10.1117/12.719649

KEYWORDS: Image filtering, Databases, Optical filters, Infrared imaging, Target detection, Distortion, Infrared sensors, Sensors, Spatial frequencies, Image segmentation

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Proceedings Article | 9 April 2007 Paper

Advanced correlation filter methods for SHARP ATR

Pankaj Topiwala, David Casasent, Avinash Nehemiah

Proceedings Volume 6574, 65740B (2007) https://doi.org/10.1117/12.719490

KEYWORDS: Image filtering, Target detection, Automatic target recognition, Distortion, Image processing, Optical filters, Sensors, Image resolution, Reconnaissance, Databases

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Proceedings Article | 9 April 2007 Paper

Real-time EO/IR sensor fusion on a portable computer and head-mounted display

Zhanfeng Yue, Pankaj Topiwala

Proceedings Volume 6571, 657106 (2007) https://doi.org/10.1117/12.719600

KEYWORDS: Sensors, Cameras, Image registration, Infrared cameras, Video, Sensor fusion, Calibration, Infrared sensors, Video surveillance, Image fusion

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Proceedings Article | 9 April 2007 Paper

Real-time object-based image registration using improved MRAN

Zhanfeng Yue, Pramod Narasimha, Kamesh Subbarao, Michael Manry, Pankaj Topiwala

Proceedings Volume 6571, 657103 (2007) https://doi.org/10.1117/12.718680

KEYWORDS: Cameras, Image registration, Data centers, Algorithm development, Infrared cameras, Image restoration, Filtering (signal processing), Infrared imaging, Neural networks, Image fusion

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Proceedings Article | 30 August 2006 Paper

Performance comparison of JPEG2000 and H.264/AVC high profile intra-frame coding on HD video sequences

Pankaj Topiwala, Trac Tran, Wei Dai

Proceedings Volume 6312, 63120T (2006) https://doi.org/10.1117/12.684405

KEYWORDS: JPEG2000, Video coding, Video, Image compression, Quantization, Computer programming, Standards development, Visualization, Wavelets, Signal to noise ratio

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Proceedings Article | 30 August 2006 Paper

Introduction and overview of scalable video coding (SVC)

Pankaj Topiwala

Proceedings Volume 6312, 63120Q (2006) https://doi.org/10.1117/12.684402

KEYWORDS: Scalable video coding, Video, Standards development, Computer programming, Video coding, Signal to noise ratio, Motion estimation, Telecommunications, Semantic video, Image compression

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Proceedings Article | 23 August 2006 Paper

Some applications of H.264/AVC fidelity-range extension profiles

Pankaj Topiwala

Proceedings Volume 5909, 59090S (2006) https://doi.org/10.1117/12.623852

KEYWORDS: Video, Video coding, Digital video discs, Standards development, Video surveillance, Video compression, Televisions, Quantization, Video processing, Matrices

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Proceedings Article | 16 September 2005 Paper

Rate-adaptive H.264 video for information for global reach (IFGR)

Praveen Kota, Karthik Kannan, Zixiang Xiong, Pankaj Topiwala, David Hench

Proceedings Volume 5909, 59090U (2005) https://doi.org/10.1117/12.623855

KEYWORDS: Video, Computer programming, Quantization, Video coding, Control systems, Forward error correction, Performance modeling, Eye models, Yield improvement, Video compression

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Proceedings Article | 8 September 2005 Paper

Comparative Study of JPEG2000 and H.264/AVC FRExt I– Frame Coding on High-Definition Video Sequences

Pankaj Topiwala

Proceedings Volume 5909, 59090V (2005) https://doi.org/10.1117/12.623856

KEYWORDS: JPEG2000, Video coding, Video, Image compression, Wavelets, Standards development, Computer programming, Quantization, Signal to noise ratio, Image quality standards

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Proceedings Article | 19 May 2005 Paper

Evaluation of video compression for 8-bit and 12-bit IR data with H.264 fidelity range extensions

S. Richard Sims, Jonathan Mills, Pankaj Topiwala

Proceedings Volume 5807, (2005) https://doi.org/10.1117/12.603853

KEYWORDS: Video compression, Video, Standards development, Sensors, Infrared sensors, Target detection, Video surveillance, Video coding, Missiles, Image compression

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Proceedings Article | 2 November 2004 Paper

Channel adaptive video compression for unmanned aerial vehicles (UAVs)

David Hench, Pankaj Topiwala, Zixiang Xiong

Proceedings Volume 5558, (2004) https://doi.org/10.1117/12.564458

KEYWORDS: Video, Computer programming, Unmanned aerial vehicles, Video surveillance, Video compression, Scalable video coding, Multimedia, Telecommunications, Quantization, Cameras

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Proceedings Article | 2 November 2004 Paper

MPEG to H.264 transcoding

Patrick Rault, Pankaj Topiwala

Proceedings Volume 5558, (2004) https://doi.org/10.1117/12.564823

KEYWORDS: Computer programming, Video, Video compression, Video coding, Standards development, Visualization, Quantization, Digital filtering, Image processing, Digital image processing

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Proceedings Article | 2 November 2004 Paper

The H.264/AVC Advanced Video Coding standard: overview and introduction to the fidelity range extensions

Gary Sullivan, Pankaj Topiwala, Ajay Luthra

Proceedings Volume 5558, (2004) https://doi.org/10.1117/12.564457

KEYWORDS: Video, Video coding, Computer programming, Quantization, Standards development, Video compression, Motion estimation, Digital video discs, Matrices, Video surveillance

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Proceedings Article | 25 October 2004 Paper

Zero-mean minace filters for detection in visible EO imagery

David Casasent, Songyot Nakariyakul, Pankaj Topiwala

Proceedings Volume 5608, (2004) https://doi.org/10.1117/12.580137

KEYWORDS: Image filtering, Optical filters, Target detection, Spatial frequencies, Synthetic aperture radar, Buildings, Databases, Modulation, Fourier transforms, Thermography

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Proceedings Article | 21 September 2004 Paper

Evaluation of video compression technologies for ATR

S. Richard Sims, Jonathan Mills, Pankaj Topiwala

Proceedings Volume 5426, (2004) https://doi.org/10.1117/12.542279

KEYWORDS: Video compression, Video, Standards development, Sensors, Video surveillance, Target detection, Missiles, Image compression, Automatic target recognition, Infrared sensors

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Proceedings Article | 21 September 2004 Paper

Correlation-based target detection for the Navy's SHARP sensor suite

Pankaj Topiwala, David Casasent

Proceedings Volume 5426, (2004) https://doi.org/10.1117/12.542328

KEYWORDS: Image filtering, Sensors, Filtering (signal processing), Target detection, Optical filters, Edge detection, Infrared sensors, Detection and tracking algorithms, Palladium, Infrared imaging

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Proceedings Article | 8 September 2004 Paper

Helmet-mounted sensor fusion ATR for the dismounted soldier

Pankaj Topiwala, David Casasent

Proceedings Volume 5442, (2004) https://doi.org/10.1117/12.542544

KEYWORDS: Sensors, Image fusion, Image processing, Infrared sensors, Infrared imaging, Video, Sensor fusion, Image sensors, Machine vision, Automatic target recognition

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Proceedings Article | 19 November 2003 Paper

HD-DVD: the next consumer electronics revolution?

Pankaj Topiwala

Proceedings Volume 5203, (2003) https://doi.org/10.1117/12.512562

KEYWORDS: Digital video discs, Video, Analog electronics, Consumer electronics, Televisions, Standards development, Laser applications, Video coding, Computer programming, Satellites

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Proceedings Article | 19 November 2003 Paper

Overview of the H.264/AVC video coding standard

Ajay Luthra, Pankaj Topiwala

Proceedings Volume 5203, (2003) https://doi.org/10.1117/12.512557

KEYWORDS: Video, Video coding, Standards development, Video compression, Motion estimation, Computer programming, Binary data, Digital video discs, Quantization, Surface plasmons

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Proceedings Article | 19 November 2003 Paper

Application of H.264 for DoD sensor systems

Guy Beakley, Stephen Long, Thomas McMahon, Walter Gish, Pankaj Topiwala

Proceedings Volume 5203, (2003) https://doi.org/10.1117/12.512563

KEYWORDS: Standards development, Video compression, Video, Image quality standards, Picosecond phenomena, Video surveillance, Image compression, Semantic video, Unmanned aerial vehicles, Image quality

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Proceedings Article | 21 November 2002 Paper

Status of the emerging ITU-T/H.264 / ISO/MPEG-4, Part 10 video coding standard

Pankaj Topiwala

Proceedings Volume 4790, (2002) https://doi.org/10.1117/12.457264

KEYWORDS: Standards development, Video coding, Video, Computer programming, Semantic video, Quantization, Motion models, Video compression, Motion estimation, Binary data

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Proceedings Article | 21 November 2002 Paper

Brief status report on scalable video coding technologies

Pankaj Topiwala, John Woods

Proceedings Volume 4790, (2002) https://doi.org/10.1117/12.457263

KEYWORDS: Scalable video coding, Wavelets, Video, Video coding, Spatial resolution, Motion estimation, Visualization, Image compression, Standards development, Electroluminescence

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Proceedings Article | 7 December 2001 Paper

Overview and performance evaluation of the ITU-T draft H.26L video coding standard

Pankaj Topiwala, Gary Sullivan, Anthony Joch, Faouzi Kossentini

Proceedings Volume 4472, (2001) https://doi.org/10.1117/12.449763

KEYWORDS: Video coding, Video, Standards development, Computer programming, Semantic video, Quantization, Image filtering, Video compression, Motion models, Telecommunications

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Proceedings Article | 28 December 2000 Paper

Projection-based block-matching motion estimation

Chengjie Tu, Trac Tran, Jerry Prince, Pankaj Topiwala

Proceedings Volume 4115, (2000) https://doi.org/10.1117/12.411605

KEYWORDS: Motion estimation, Video, Video coding, Algorithm development, Lawrencium, Electrochemical etching, Motion models, Image resolution, Spatial resolution, Temporal resolution

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Proceedings Article | 30 October 1997 Paper

Human vision-based wavelet image coding

Pankaj Topiwala

Proceedings Volume 3164, (1997) https://doi.org/10.1117/12.292756

KEYWORDS: Wavelets, Image compression

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Proceedings Article | 14 November 1996 Paper

HVS-motivated quantization schemes in wavelet image compression

Pankaj Topiwala

Proceedings Volume 2847, (1996) https://doi.org/10.1117/12.258245

KEYWORDS: Quantization, Wavelets, Image compression, Visual system, Image filtering, Modulation transfer functions, Visualization, Data modeling, Systems modeling, Visual process modeling

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Proceedings Article | 1 September 1995 Paper

Region of interest compression using pyramidal coding schemes

Pankaj Topiwala, Richard Forkert

Proceedings Volume 2569, (1995) https://doi.org/10.1117/12.217628

KEYWORDS: Image compression, Error analysis, Quantization, Wavelets, Image quality, Algorithm development, Data communications, Image resolution, Electronic filtering, Synthetic aperture radar

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Proceedings Article | 6 April 1995 Paper

Wavelet radar target classification

Pankaj Topiwala, Chojan Teng

Proceedings Volume 2491, (1995) https://doi.org/10.1117/12.205407

KEYWORDS: Signal to noise ratio, Radar, Wavelet transforms, Fourier transforms, Detection and tracking algorithms, Wavelets, S band, Modulation, Electronic filtering, Filtering (signal processing)

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Proceedings Article | 11 October 1994 Paper

Asymptotic singular value decay of time-frequency localization operators

Christopher Heil, Jayakumar Ramanathan, Pankaj Topiwala

Proceedings Volume 2303, (1994) https://doi.org/10.1117/12.188774

KEYWORDS: Time-frequency analysis, Fourier transforms, Mathematics, Bandpass filters, Space operations, Bohrium, Electronic filtering, Tin, Lead, Convolution

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Showing 5 of 71 publications

Conference Committee Involvement (19)

Applications of Digital Image Processing XLVII

18 August 2024 | San Diego, California, United States

Applications of Digital Image Processing XLVI

21 August 2023 | San Diego, California, United States

Applications of Digital Image Processing XLV

22 August 2022 | San Diego, California, United States

Applications of Digital Image Processing XLIV

1 August 2021 | San Diego, California, United States

Applications of Digital Image Processing XLIII

24 August 2020 | Online Only, California, United States

Applications of Digital Image Processing XLII

12 August 2019 | San Diego, California, United States

Applications of Digital Image Processing XLI

20 August 2018 | San Diego, California, United States

Applications of Digital Image Processing XL

7 August 2017 | San Diego, California, United States

Applications of Digital Image Processing XXXIX

29 August 2016 | San Diego, California, United States

Applications of Digital Image Processing XXXV

13 August 2012 | San Diego, California, United States

Applications of Digital Image Processing XXXIV

22 August 2011 | San Diego, California, United States

Applications of Digital Image Processing XXXIII

2 August 2010 | San Diego, California, United States

Applications of Digital Image Processing XXXII

3 August 2009 | San Diego, California, United States

Applications of Digital Image Processing XXXI

11 August 2008 | San Diego, California, United States

Applications of Digital Image Processing XXX

28 August 2007 | San Diego, California, United States

Applications of Digital Image Processing XXIX

15 August 2006 | San Diego, California, United States

Applications of Digital Image Processing XXVIII

2 August 2005 | San Diego, California, United States

Applications of Digital Image Processing XXVII

2 August 2004 | Denver, Colorado, United States

Applications of Digital Image Processing XXVI

5 August 2003 | San Diego, California, United States

Showing 5 of 19 Conference Committees

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