Block-based compressive sampling for digitalpixel sensor array

Milin Zhang, Yan Wang, Amine Bermak

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

In this paper, a block-based online compressive sampling scheme for digital pixel sensor (DPS) is proposed. The overall sensor array is divided into blocks whereby one randomly selected pixel within each block is sampled using a random access control circuit. The latter is performed using off-array horizontal and vertical control logic. The random access addresses are updated during readout phase using low complexity logic operations performed on the readout pixel values. A sparse matrix, consisting of all the sampled pixel values, is buildup to reconstruct the image by solving the l1-norm minimization as the linear programming problem in the framework of Convex Optimization. The proposed system features reduced on-chip compression processing complexity and significant reduced memory requirement. System level simulation results show that a 25dB reconstructed image quality in terms of PSNR is achieved enabling a compression ratio of 4. In addition, a pixel-level memory requirement reduction of 75% is achieved when compared to a standard PWM DPS architecture.

Original languageEnglish
Title of host publicationProceedings of the 2nd Asia Symposium on Quality Electronic Design, ASQED 2010
Pages9-12
Number of pages4
DOIs
Publication statusPublished - 2010
Externally publishedYes
Event2nd Asia Symposium on Quality Electronic Design, ASQED 2010 - Penang, Malaysia
Duration: 3 Aug 20104 Aug 2010

Other

Other2nd Asia Symposium on Quality Electronic Design, ASQED 2010
CountryMalaysia
CityPenang
Period3/8/104/8/10

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ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Safety, Risk, Reliability and Quality

Cite this

Zhang, M., Wang, Y., & Bermak, A. (2010). Block-based compressive sampling for digitalpixel sensor array. In Proceedings of the 2nd Asia Symposium on Quality Electronic Design, ASQED 2010 (pp. 9-12). [5548164] https://doi.org/10.1109/ASQED.2010.5548164