Dr. Venkarteswarlu Ronda Profile

Dr. Venkarteswarlu Ronda

Principal Scientist at Institute for Infocomm Research

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Author

Publications (29)

Proceedings Article | 10 May 2006 Paper

Wearable high-tech gear for homeland security personnel

Ronda Venkateswarlu, Choo Hui Wei, Ngiam Li Lian, E. Lim, Zijian Zhu, Mingjiang Yang

Proceedings Volume 6201, 62011A (2006) https://doi.org/10.1117/12.665336

KEYWORDS: Homeland security, Signal processing, Sensors, Video, Cameras, Human-machine interfaces, Glasses, Defense and security, Computer security, Global Positioning System

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SPIE Journal Paper | 1 October 2005 Open Access

Multiscale corner detection of contour images using wavelet transform

Xinting Gao, Farook Sattar, Venkarteswarlu Ronda, Azhar Quddus

JEI, Vol. 14, Issue 04, 040502, (October 2005) https://doi.org/10.1117/12.10.1117/1.2076968

KEYWORDS: Corner detection, Wavelet transforms, Sensors, Detection and tracking algorithms, Wavelets, Device simulation, Electronics engineering, Computer engineering, Shape analysis, Image analysis

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Proceedings Article | 25 May 2005 Paper

Pose estimation and frontal face detection for face recognition

Eng Thiam Lim, Jiangang Wang, Wei Xie, Venkarteswarlu Ronda

Proceedings Volume 5817, (2005) https://doi.org/10.1117/12.603332

KEYWORDS: Facial recognition systems, RGB color model, Skin, Detection and tracking algorithms, Eye models, Nose, Statistical modeling, Mouth, Computer simulations, Eye

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Proceedings Article | 25 August 2004 Paper

Detection of small targets in IR image sequences using VSLMS

Liang Ngee Ng, Venkateswarlu Ronda, Eng Thiam Lim

Proceedings Volume 5428, (2004) https://doi.org/10.1117/12.541308

KEYWORDS: Target detection, Infrared imaging, Image processing, Detection and tracking algorithms, Signal processing, Data processing, Infrared detectors, Infrared radiation, Analytical research

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Proceedings Article | 9 August 2004 Paper

Robust face and facial feature tracking for gaze estimation

Eng Thiam Lim, Ronda Venkateswarlu

Proceedings Volume 5429, (2004) https://doi.org/10.1117/12.541994

KEYWORDS: Skin, Computer programming, Eye, Mouth, Head, Nose, Facial recognition systems, Detection and tracking algorithms, Eye models, Digital filtering

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Proceedings Article | 4 August 2003 Paper

Multimode fusion algorithm for robust dim point-like target detection

Eng Thiam Lim, Louis Shue, Venkateswarlu Ronda

Proceedings Volume 5082, (2003) https://doi.org/10.1117/12.486908

KEYWORDS: Detection and tracking algorithms, Target detection, Continuous wavelet transforms, Spatial filters, Filtering (signal processing), 3D acquisition, Digital filtering, Image fusion, Clouds, Electronic filtering

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Proceedings Article | 7 August 2002 Paper

Adaptive mean and variance filter for detection of dim point-like targets

Eng Thiam Lim, Louis Shue, Ronda Venkateswarlu

Proceedings Volume 4728, (2002) https://doi.org/10.1117/12.478530

KEYWORDS: Target detection, Clouds, Detection and tracking algorithms, Signal processing, Digital filtering, Signal detection, Statistical analysis, 3D acquisition, Electronic filtering, Optical filters

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Proceedings Article | 26 November 2001 Paper

Tracking of low-observable small targets against clutter

Louis Shue, Ronda Venkateswarlu, Eng Thiam Lim

Proceedings Volume 4473, (2001) https://doi.org/10.1117/12.492755

KEYWORDS: Filtering (signal processing), Detection and tracking algorithms, Target detection, Electronic filtering, Clouds, Image filtering, Infrared imaging, Digital filtering, Infrared detectors, Infrared radiation

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Proceedings Article | 18 October 2001 Paper

LED-based nondirectional infrared transceiver for high-speed indoor wireless data communication

George Chen, Wei New, Jianping Yao, Ronda Venkateswarlu

Proceedings Volume 4586, (2001) https://doi.org/10.1117/12.445264

KEYWORDS: Light emitting diodes, Transmitters, Receivers, Signal to noise ratio, Photodiodes, Transceivers, Eye, Infrared radiation, Data communications, Optical testing

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Proceedings Article | 18 October 2001 Paper

Design and implementation of receiver system for a wireless infrared communication link

Lijun Jiang, New Wei Lee, Ronda Venkateswarlu

Proceedings Volume 4586, (2001) https://doi.org/10.1117/12.445247

KEYWORDS: Photodiodes, Receivers, Telecommunications, Optical amplifiers, Signal to noise ratio, Light emitting diodes, Amplifiers, Linear filtering, Infrared radiation, Electronic filtering

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Proceedings Article | 13 July 2000 Paper

Adaptive threshold-based spatio-temporal filtering techniques for detection of small targets

Venkateswarlu Ronda, Wei New, M. Tan, Meng Er

Proceedings Volume 4048, (2000) https://doi.org/10.1117/12.392012

KEYWORDS: Target detection, Detection and tracking algorithms, Digital filtering, Signal processing, Data processing, Infrared radiation, Clouds, Databases, Infrared imaging, Infrared detectors

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Proceedings Article | 7 July 2000 Paper

Dim point target detection in IR imagery using multistage IIR filter

Eng Thiam Lim, Suyog Deshpande, Choong Wah Chan, Ronda Venkateswarlu

Proceedings Volume 4025, (2000) https://doi.org/10.1117/12.391664

KEYWORDS: Clouds, Target detection, Linear filtering, Optical filters, Infrared imaging, Detection and tracking algorithms, Electronic filtering, Infrared detectors, Digital filtering, Continuous wavelet transforms

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Proceedings Article | 7 July 2000 Paper

Multimode signal processor for imaging infrared seeker

Ronda Venkateswarlu, Louis Shue

Proceedings Volume 4025, (2000) https://doi.org/10.1117/12.391658

KEYWORDS: Signal processing, Missiles, Detection and tracking algorithms, Digital filtering, Image registration, Imaging infrared seeker, Target recognition, Target detection, Image filtering, Infrared imaging

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Proceedings Article | 30 May 2000 Paper

Dim point target detection and tracking system in IR imagery

Eng Thiam Lim, Choong Wah Chan, Ronda Venkateswarlu

Proceedings Volume 4067, (2000) https://doi.org/10.1117/12.386644

KEYWORDS: Clouds, Target detection, Detection and tracking algorithms, Linear filtering, Continuous wavelet transforms, Infrared imaging, Digital filtering, Electronic filtering, Optical filters, Interference (communication)

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Proceedings Article | 4 November 1999 Paper

Emerging electro-optical technologies for defense applications

Ronda Venkateswarlu, W. Ser, Meng Er, Philip Chan

Proceedings Volume 3898, (1999) https://doi.org/10.1117/12.368500

KEYWORDS: Sensors, Weapons, Missiles, Target detection, Signal processing, Defense and security, Infrared search and track, Charge-coupled devices, Infrared sensors, Electro optics

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Proceedings Article | 4 October 1999 Paper

New method for detection of dim point targets in infrared images

Wei New, M. Tan, Meng Er, Ronda Venkateswarlu

Proceedings Volume 3809, (1999) https://doi.org/10.1117/12.364015

KEYWORDS: Target detection, Detection and tracking algorithms, Signal processing, Clouds, Infrared radiation, Infrared detectors, Infrared imaging, Filtering (signal processing), Image processing, Data processing

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There are several methods reported in the literature for detecting dim targets against slowly moving clutter. However, each method has its won advantages and disadvantages. The challenge lies in reducing the false alarm rate to an acceptable level. 'False alarm rate' defined in case of a significant size of the target in a frame may not be applicable to point-targets. This paper presents a new method for the detection of dim point-targets in the presence of the evolving clouds and heavy background clutter. Choosing a threshold for achieving constant false alarm rate is always a tricky problem. Too less a threshold may ensure detection of target pixels. But this will result in too may false targets, which limit the performance of the post-processor to trace out target paths. Too high a threshold result in fewer false alarms but the targets may also be missing out. Based on off-line studies, it has been found that a 'desirable condition' is required to limit the number of accumulated pixels not to exceed 8 percent of the total image size for post-processing. This paper present a method based on random and correlated noises which in turn selects an auto threshold that leads to the 'desired condition' for the post-processor. An effort has been made to derive an empirical formula based on random and correlated noises to obtain an auto threshold value that achieves the desirable condition. Then the incoming frames of data are then processed by a constant threshold and accumulated as total number of pixels. At the same time the track record of pixels along with frame numbers are recorded. The post-processor to filter out the false alarms uses this information. One advantage of this method is that there is no need to store all the frames to obtain the desired information. The algorithm has been tested with the available database and the results are very promising. It is assumed that most of the targets occupy a couple of pixels. Head-on moving and maneuvering targets are not considered.

Proceedings Article | 4 October 1999 Paper

Max-mean and max-median filters for detection of small targets

Suyog Deshpande, Meng Er, Ronda Venkateswarlu, Philip Chan

Proceedings Volume 3809, (1999) https://doi.org/10.1117/12.364049

KEYWORDS: Digital filtering, Image filtering, Filtering (signal processing), Detection and tracking algorithms, Target detection, Nonlinear filtering, Electronic filtering, Clouds, Optical filters, Image processing

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Proceedings Article | 15 July 1999 Paper

Multimode algorithm for detection and tracking of point targets

Ronda Venkateswarlu, Meng Er, Suyog Deshpande, Philip Chan

Proceedings Volume 3692, (1999) https://doi.org/10.1117/12.352869

KEYWORDS: Target detection, Clouds, Detection and tracking algorithms, Spatial filters, Wavelets, Image processing, Infrared imaging, Sensors, Infrared radiation, Continuous wavelet transforms

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Proceedings Article | 12 July 1999 Paper

Fill factor of FPA: effect on image registration and tracking

Ronda Venkateswarlu, Suyog Deshpande, Y. Yoganandam, Yu Gan

Proceedings Volume 3701, (1999) https://doi.org/10.1117/12.352980

KEYWORDS: Sensors, Staring arrays, Image registration, Target detection, Detection and tracking algorithms, Advanced distributed simulations, Point spread functions, Detector arrays, Active sensors, Image filtering

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Proceedings Article | 12 July 1999 Paper

IRST system: hardware implementation issues

Suyog Deshpande, Philip Chan, W. Ser, Ronda Venkateswarlu

Proceedings Volume 3701, (1999) https://doi.org/10.1117/12.352967

KEYWORDS: Digital signal processing, Signal processing, Infrared search and track, Sensors, Staring arrays, Data conversion, Clocks, Target detection, Detection and tracking algorithms, Analog electronics

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Proceedings Article | 13 August 1997 Paper

Design considerations of IRST system

Ronda Venkateswarlu, Meng Er, Siu Chung Tam, Choong Chan, Lay Choo

Proceedings Volume 3061, (1997) https://doi.org/10.1117/12.280379

KEYWORDS: Infrared search and track, Sensors, Target detection, Signal processing, Image processing, Staring arrays, Optical design, Infrared sensors, Electronics, Mirrors

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Proceedings Article | 13 August 1997 Paper

Nonuniformity compensation for IR focal plane array sensors

Ronda Venkateswarlu, Meng Er, Yu Gan, Yew Fong

Proceedings Volume 3061, (1997) https://doi.org/10.1117/12.280310

KEYWORDS: Sensors, Digital signal processing, Staring arrays, Infrared imaging, CCD image sensors, Calibration, Cameras, Image enhancement, Infrared sensors, Nonuniformity corrections

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Proceedings Article | 23 June 1997 Paper

Area-correlation tracker with improved reliability

Ronda Venkateswarlu, Meng Er, Yu Gan, Yew Fong

Proceedings Volume 3086, (1997) https://doi.org/10.1117/12.277189

KEYWORDS: Image registration, Signal to noise ratio, Detection and tracking algorithms, Image sensors, Sensors, Reliability, Optical sensors, Infrared cameras, Infrared imaging, Target acquisition

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Proceedings Article | 27 May 1996 Paper

Multimode image-based navigation for unmanned aerial vehicle

Ronda Venkateswarlu

Proceedings Volume 2738, (1996) https://doi.org/10.1117/12.241073

KEYWORDS: Unmanned aerial vehicles, Sensors, Imaging systems, Reliability, Optical sensors, Image sensors, Detection and tracking algorithms, Weapons, Navigation systems, Radar

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Proceedings Article | 1 October 1993 Paper

Mathematical analysis of image registration algorithms for infrared images

Ronda Venkateswarlu, B. Chatterji, Anindya Biswas

Proceedings Volume 1950, (1993) https://doi.org/10.1117/12.156904

KEYWORDS: Image registration, Evolutionary algorithms, Simulation of CCA and DLA aggregates, Nickel, Silicon, Infrared imaging, Signal to noise ratio, Bismuth, Detection and tracking algorithms, Statistical analysis

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Proceedings Article | 25 November 1992 Paper

Real-time evaluation techniques for real-time image processing hardware

Ronda Venkateswarlu, C. Arjuna Rao

Proceedings Volume 1697, (1992) https://doi.org/10.1117/12.138204

KEYWORDS: Data acquisition, Image registration, Image processing, Image acquisition, Image storage, Cameras, Real time image processing, Sensors, Human-machine interfaces, Image sensors

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Proceedings Article | 25 November 1992 Paper

Real-time hardware implementation for area correlation tracker

Ronda Venkateswarlu, B. Venkateswara Rao, P. Raju

Proceedings Volume 1697, (1992) https://doi.org/10.1117/12.138173

KEYWORDS: Detection and tracking algorithms, Image sensors, Optical sensors, Algorithm development, Silicon, Correlation function, Control systems, Simulation of CCA and DLA aggregates, Image registration, Image processing

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Proceedings Article | 25 November 1992 Paper

Centroid tracker and aimpoint selection

Ronda Venkateswarlu, K. Sujata, B. Venkateswara Rao

Proceedings Volume 1697, (1992) https://doi.org/10.1117/12.138205

KEYWORDS: Detection and tracking algorithms, Sensors, Control systems, Image sensors, Binary data, Image segmentation, Image processing, Target detection, Video, Infrared imaging

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Proceedings Article | 9 July 1992 Paper

Analysis of image registration algorithms for infrared images

Ronda Venkateswarlu, B. Chatterji

Proceedings Volume 1699, (1992) https://doi.org/10.1117/12.138248

KEYWORDS: Image registration, Sensors, Simulation of CCA and DLA aggregates, Signal to noise ratio, Infrared imaging, Infrared radiation, Staring arrays, Detection and tracking algorithms, Curium, Image sensors

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Showing 5 of 29 publications

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