A low-power energy-harvesting logarithmic CMOS image sensor with reconfigurable resolution using two-level quantization scheme

M. K. Law; A. Bermak; C. Shi

doi:10.1109/TCSII.2010.2104010

A low-power energy-harvesting logarithmic CMOS image sensor with reconfigurable resolution using two-level quantization scheme

M. K. Law, A. Bermak, C. Shi

Research output: Contribution to journal › Article

30 Citations (Scopus)

Abstract

In this brief, a CMOS image sensor that exploits the possibility of reconfiguring pixel photodiodes for energy harvesting for wireless image sensor applications is proposed. Based on the logarithmic sensor architecture, each pixel photodiode of the proposed sensor array can be configured into either photosensing or energy-harvesting element to accomplish image-capturing or energy-harvesting purpose, respectively. An addressing scheme for reduced resolution readout and improved energy-harvesting efficiency, and a two-level quantization scheme for reduced readout dynamic power consumption are also proposed.

Original language	English
Article number	5713245
Pages (from-to)	80-84
Number of pages	5
Journal	IEEE Transactions on Circuits and Systems II: Express Briefs
Volume	58
Issue number	2
DOIs	https://doi.org/10.1109/TCSII.2010.2104010
Publication status	Published - 1 Feb 2011

Keywords

Energy harvesting
low-power CMOS image sensor
reconfigurable resolution
two-level quantization

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/TCSII.2010.2104010

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Law, M. K., Bermak, A., & Shi, C. (2011). A low-power energy-harvesting logarithmic CMOS image sensor with reconfigurable resolution using two-level quantization scheme. IEEE Transactions on Circuits and Systems II: Express Briefs, 58(2), 80-84. [5713245]. https://doi.org/10.1109/TCSII.2010.2104010

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