Adaptive compressive coding method based on spectral image region segmentation

Yuhan Zhang; Tingfa Xu; Xi Wang; Jizhou Zhang; Chang Xu; Axing Fan

doi:10.1117/12.2620702

8 July 2022 Adaptive compressive coding method based on spectral image region segmentation

Yuhan Zhang, Tingfa Xu, Xi Wang, Jizhou Zhang, Chang Xu, Axing Fan

Proceedings Volume 12281, 2021 International Conference on Optical Instruments and Technology: Optoelectronic Imaging/Spectroscopy and Signal Processing Technology; 1228103 (2022) https://doi.org/10.1117/12.2620702
Event: 2021 International Conference on Optical Instruments and Technology, 2022, Online Only

Abstract

In the field of compressive sensing spectral imaging, an adaptive coding method based on a-prior knowledge is a way to obtain high-precision scene information. In this paper, we propose a method that uses low-resolution spatial-spectral information to split into homogeneous regions before generating adaptive coding matrices, in response to the shortcomings of most existing adaptive coding methods that use only spatial a priori information to generate coding matrices. The method uses coding devices in a compressive spectral imaging system to obtain spectral a-priori information with low spatial resolution. Based on this a-priori information, an adaptive segmentation method with region merging is used to obtain segmented images with certain regional homogeneity. The adaptive coding theory and this segmentation result are combined to generate the adaptive coding matrix, and then the compressive observation information of the scene and its complementary observation information are obtained. Based on these observations, the scene information with a high spatial resolution is calculated by the reconstruction algorithm. Simulation experiments show that the adaptive compressive coding method based on spectral image region segmentation has advantages in peak signal-to-noise ratio and structural consistency rating indexes compared with traditional adaptive coding methods.

Citation Download Citation

Yuhan Zhang, Tingfa Xu, Xi Wang, Jizhou Zhang, Chang Xu, and Axing Fan "Adaptive compressive coding method based on spectral image region segmentation", Proc. SPIE 12281, 2021 International Conference on Optical Instruments and Technology: Optoelectronic Imaging/Spectroscopy and Signal Processing Technology, 1228103 (8 July 2022); https://doi.org/10.1117/12.2620702

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available