TY - GEN
T1 - Block-based compressive low-light-level imaging
AU - Ke, Jun
AU - Wei, Ping
AU - Zhang, Xin
AU - Lam, Edmund Y.
PY - 2013
Y1 - 2013
N2 - In this paper, block-based compressive low-light-level imaging (BCL-imaging) is studied. To obtain larger measurement SNR (signal to noise ratio), instead of object pixels, linear combinations of pixels, referred to as features, are collected. PCA and Hadamard features are studied. Measurement SNR and reconstruction error are analyzed to quantify BCL-imaging performance. Compared with conventional imaging, BCL-imaging presents better reconstruction quality. Between PCA and Hadamard projections, PCA has smaller reconstruction error. However, after sorting the projection vectors using measurement SNR, Hadamard can obtain similarly performance as PCA. Biased vector and dual-measurements are studied with experimental results for the implementation of both projections in the end of this paper.
AB - In this paper, block-based compressive low-light-level imaging (BCL-imaging) is studied. To obtain larger measurement SNR (signal to noise ratio), instead of object pixels, linear combinations of pixels, referred to as features, are collected. PCA and Hadamard features are studied. Measurement SNR and reconstruction error are analyzed to quantify BCL-imaging performance. Compared with conventional imaging, BCL-imaging presents better reconstruction quality. Between PCA and Hadamard projections, PCA has smaller reconstruction error. However, after sorting the projection vectors using measurement SNR, Hadamard can obtain similarly performance as PCA. Biased vector and dual-measurements are studied with experimental results for the implementation of both projections in the end of this paper.
UR - http://www.scopus.com/inward/record.url?scp=84894476061&partnerID=8YFLogxK
U2 - 10.1109/IST.2013.6729712
DO - 10.1109/IST.2013.6729712
M3 - Conference contribution
AN - SCOPUS:84894476061
SN - 9781467357906
T3 - IST 2013 - 2013 IEEE International Conference on Imaging Systems and Techniques, Proceedings
SP - 311
EP - 316
BT - IST 2013 - 2013 IEEE International Conference on Imaging Systems and Techniques, Proceedings
T2 - 2013 IEEE International Conference on Imaging Systems and Techniques, IST 2013
Y2 - 22 October 2013 through 23 October 2013
ER -