Title :
Compressive sensing for incoherent imaging systems with optical constraints
Author :
Renna, Francesco ; Rodrigues, Miguel R. D. ; Minhua Chen ; Calderbank, R. ; Carin, Lawrence
Author_Institution :
Dept. de Cienc. de Comput., Univ. do Porto, Porto, Portugal
Abstract :
We consider the problem of linear projection design for incoherent optical imaging systems. We propose a computationally efficient method to obtain effective measurement kernels that satisfy the physical constraints imposed by an optical system, starting first from arbitrary kernels, including those that satisfy a less demanding power constraint. Performance is measured in terms of mutual information between the source input and the projection measurement, as well as reconstruction error for real world images. A clear improvement in the quality of image reconstructions is shown with respect to both random and adaptive projection designs in the literature.
Keywords :
compressed sensing; image reconstruction; optical images; optical projectors; adaptive projection measurement kernel; compressive sensing; computationally efficient method; image reconstruction; incoherent optical imaging system; linear projection design; mutual information; optical constraint; physical constraint; Image reconstruction; Kernel; Mutual information; Noise; Optical imaging; Optical variables measurement; Vectors; Compressed sensing; low resolution imaging; projection algorithms;
Conference_Titel :
Acoustics, Speech and Signal Processing (ICASSP), 2013 IEEE International Conference on
Conference_Location :
Vancouver, BC
DOI :
10.1109/ICASSP.2013.6638712