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 | |
| Publication status | Published - Feb 2011 |
| Externally published | Yes |
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Keywords
- Energy harvesting
- low-power CMOS image sensor
- reconfigurable resolution
- two-level quantization
ASJC Scopus subject areas
- Electrical and Electronic Engineering
Cite this
A low-power energy-harvesting logarithmic CMOS image sensor with reconfigurable resolution using two-level quantization scheme. / Law, M. K.; Bermak, Amine; Shi, C.
In: IEEE Transactions on Circuits and Systems II: Express Briefs, Vol. 58, No. 2, 5713245, 02.2011, p. 80-84.Research output: Contribution to journal › Article
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TY - JOUR
T1 - A low-power energy-harvesting logarithmic CMOS image sensor with reconfigurable resolution using two-level quantization scheme
AU - Law, M. K.
AU - Bermak, Amine
AU - Shi, C.
PY - 2011/2
Y1 - 2011/2
N2 - 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.
AB - 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.
KW - Energy harvesting
KW - low-power CMOS image sensor
KW - reconfigurable resolution
KW - two-level quantization
UR - http://www.scopus.com/inward/record.url?scp=79952039229&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79952039229&partnerID=8YFLogxK
U2 - 10.1109/TCSII.2010.2104010
DO - 10.1109/TCSII.2010.2104010
M3 - Article
VL - 58
SP - 80
EP - 84
JO - IEEE Transactions on Circuits and Systems II: Express Briefs
JF - IEEE Transactions on Circuits and Systems II: Express Briefs
SN - 1549-8328
IS - 2
M1 - 5713245
ER -