Title :
Distributed Compressive Hyperspectral Image Sensing
Author :
Liu, Haiying ; Li, Yunsong ; Xiao, Song ; Wu, Chengke
Author_Institution :
ISN Nat. Key Lab., Xidian Univ., Xi´´an, China
Abstract :
A novel compression framework called distributed compressed hyper spectral image sensing (DCHIS) is proposed in this paper. In our framework, the random measurements of each spectral band are obtained using compressed sensing (CS) encoding independently at the encoder. At the decoder, a new reconstruction algorithm with the proposed initialization and stopping criterion is applied to reconstruct the non-key frames with the assistance of the estimated side information, which is derived from the previous reconstructed key frames using the prediction method. Experimental results show that the proposed algorithm not only improves the reconstruction quality, but also increases convergence rate. Our algorithm has a very low-complexity encoder and is hardware friendly.
Keywords :
convergence; distributed processing; encoding; geophysical image processing; image reconstruction; image sensors; optimisation; compressed sensing encoding; distributed compressive hyperspectral image sensing; key frame reconstruction; random measurement; reconstruction algorithm; reconstruction quality; side information; spectral band; Algorithm design and analysis; Correlation; Hyperspectral imaging; Image coding; Image reconstruction; Prediction algorithms; compressed sensing; distributed compressive sensing; hyperspectral imagery; optimization problem; prediction;
Conference_Titel :
Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP), 2010 Sixth International Conference on
Conference_Location :
Darmstadt
Print_ISBN :
978-1-4244-8378-5
Electronic_ISBN :
978-0-7695-4222-5
DOI :
10.1109/IIHMSP.2010.154