NDLI: A 1.2-V reconfigurable resolution CMOS image sensor with energy harvesting capability

Content Provider	IEEE Xplore Digital Library
Author	Chao Shi Bermak, A.
Copyright Year	2010
Description	Author affiliation: Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China (Chao Shi; Bermak, A.)
Abstract	In this paper, we propose a low voltage, low power, reconfigurable resolution CMOS image sensor with energy harvesting capability for wireless image sensor networks. Logarithmic type pixel is adopted to provide a wide dynamic range for image capturing. Semi-pixel level single slope analog-to-digital conversion is realized by employing in-pixel transistors as a part of the column comparator. A correlated double sampling (CDS) control transistor is introduced to remove fixed pattern noise (FPN) due to transistor threshold voltage variations. Energy/power scalability is achieved through reconfiguring the spatial resolution of the imager. The photodiode in the proposed pixel can be used as an energy harvesting device to scavenge energy from the ambient light after photo-sensing. The proposed 64 × 66 imager is designed with AMIS CMOS 0.35-µm digital process, and operates at a supply voltage of 1.2V. It can achieve a dynamic range of 108.6dB with an energy efficiency of 10.74nJ/pixel/frame in simulation. A comparison with other reported designs reveals that the proposed imager is one of the most energy efficient imagers of wide dynamic range. Moreover, the energy harvesting capability of the proposed imager could lead to further improved energy efficiency.
Starting Page	208
Ending Page	211
File Size	333251
Page Count	4
File Format	PDF
ISBN	9781424478095
e-ISBN	9781424478088
DOI	10.1109/ASQED.2010.5548240
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-08-03
Publisher Place	Malaysia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image sensors Low voltage Wireless sensor networks Image resolution Energy resolution CMOS image sensors Dynamic range Energy efficiency Pixel Analog-digital conversion
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in