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Paper Abstract and Keywords
Presentation 2021-08-17 14:20
Study of an Event-Driven CMOS Image Sensor Using Deep Learning (2) -- An A/D Converter with Low-Resolution and Power-Saving Operation Mode --
Koshiro Itsuki, Shunsuke Okura (Ritsumeikan Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) With the progress of the IoT and the Trillion Sensor Universe,the amount of information collected by CMOS image sensors is expected to increase,and an image processing method that does not rely on humans is required. Image recognition based on deep learning is expected to be an effective means to process this big data. However, the amount of information in images captured by conventional image sensors is too redundant for the image recognition system. In this paper, we suppose an image sensor which can output conventional images and feature image. For the image sensor, a SAR A/D converter that
converts the pixel output signal into 10 bit digital signal during the normal image capturing and into 5 bit digital signal with lower power consumption during the feature extraction image capturing is proposed, because the image recognition system can classify an image with low bit resolution. The proposed circuit is verified with SPICE simulation and a test chip is fabricated.
Keyword (in Japanese) (See Japanese page) 
(in English) CMOS image sensor / big data / Trillion Sensor Universe / Deep learning / Image recognition / Low Power Consumption / A/D converter /  
Reference Info. ITE Tech. Rep., vol. 45, no. 21, IST2021-44, pp. 35-40, Aug. 2021.
Paper # IST2021-44 
Date of Issue 2021-08-10 (IST) 
ISSN Print edition: ISSN 1342-6893  Online edition: ISSN 2424-1970
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Conference Information
Committee IEICE-SDM IEICE-ICD IST  
Conference Date 2021-08-17 - 2021-08-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Analog, Mixed Analog and Digital, RF, and Sensor Interface, Low Voltage/Low Power Techniques, Novel Devices/Circuits, and the Applications 
Paper Information
Registration To IST 
Conference Code 2021-08-SDM-ICD-IST 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Study of an Event-Driven CMOS Image Sensor Using Deep Learning (2) 
Sub Title (in English) An A/D Converter with Low-Resolution and Power-Saving Operation Mode 
Keyword(1) CMOS image sensor  
Keyword(2) big data  
Keyword(3) Trillion Sensor Universe  
Keyword(4) Deep learning  
Keyword(5) Image recognition  
Keyword(6) Low Power Consumption  
Keyword(7) A/D converter  
Keyword(8)  
1st Author's Name Koshiro Itsuki  
1st Author's Affiliation Ritsumeikan University (Ritsumeikan Univ.)
2nd Author's Name Shunsuke Okura  
2nd Author's Affiliation Ritsumeikan University (Ritsumeikan Univ.)
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Speaker
Date Time 2021-08-17 14:20:00 
Presentation Time 25 
Registration for IST 
Paper # ITE-IST2021-44 
Volume (vol) ITE-45 
Number (no) no.21 
Page pp.35-40 
#Pages ITE-6 
Date of Issue ITE-IST-2021-08-10 


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