Title:
COMPRESSIVE SENSING IMAGE SENSOR WHICH CAN IMPROVE FRAME RATE, AND OPERATING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/078483
Kind Code:
A1
Abstract:
A compressive sensing image sensor according to an embodiment of the present invention comprises: a pixel array comprising multiple pixels; and a readout circuit for receiving, from the multiple pixels, analog pixel data of a captured image, and processing the same, wherein the pixel array includes multiple blocks arranged in an array configuration, each of the blocks having multiple pixels, and the readout circuit comprises: a compressive sensing multiplexer to which multiple pixel data output from a corresponding block among the multiple blocks are input; an LFSR for randomly selecting at least one pixel data from the multiple pixel data input to the compressive sensing multiplexer; and a delta-sigma ADC which receives the at least one pixel data selected by the LFSR and performs delta-sigma modulation of the received at least one pixel data, so as to generate compressive sensing data for reconstructing an image in the corresponding block from the captured image.
Inventors:
LEE BYUNG GEUN (KR)
KIM JIN HO (KR)
LEE HYUN KEUN (KR)
KIM WOO TAE (KR)
KIM JIN HO (KR)
LEE HYUN KEUN (KR)
KIM WOO TAE (KR)
Application Number:
PCT/KR2018/010212
Publication Date:
April 25, 2019
Filing Date:
September 03, 2018
Export Citation:
Assignee:
GWANGJU INST SCIENCE & TECH (KR)
International Classes:
H04N5/335; H03M3/00; H04N5/3745; H04N5/378
Foreign References:
| KR101741754B1 | 2017-05-31 | |||
| KR20120022034A | 2012-03-09 | |||
| KR20060043071A | 2006-05-15 | |||
| KR20070091575A | 2007-09-11 |
Other References:
YUSUKE OIKE ET AL.: "CMOS Image Sensor With Per-Column SIGMA DELTA ADC and Programmable Compressed Sensing", IEEE JOURNAL OF SOLID-STATE CIRCUITS, vol. 48, no. 1, January 2013 (2013-01-01), pages 318 - 328, XP011485444, DOI: 10.1109/JSSC.2012.2214851
Attorney, Agent or Firm:
KIM, Ki Moon (KR)
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