A 2PJ/Pixel/Direction MIMO Processing Based CMOS Image Sensor for Omnidirectional Local Binary Pattern Extraction and Edge Detection

doi:10.1109/VLSIC.2018.8502214

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	A 2PJ/Pixel/Direction MIMO Processing Based CMOS Image Sensor for Omnidirectional Local Binary Pattern Extraction and Edge Detection
	Zhong，Xiaopeng 1; Yu，Qian 1; Bermak，Amine 1,2; Tsui，Chi Ying 1; Law，May Kay3
	2018-10-22
Source Publication	IEEE Symposium on VLSI Circuits, Digest of Technical Papers
Volume	2018-June
Pages	247-248
Abstract	This paper presents an energy-efficient multi-mode CMOS image sensor featuring omnidirectional local binary pattern extraction (LBP-E), edge detection (ED) and normal imaging. A mixed-signal 4-pixel simultaneous group computation (GC) scheme is developed to extract complete 8-direction LBP and edge. High-speed and energy-efficient column-parallel GC is achieved with the proposed group-switchable multi-input multi-output (MIMO) comparator. The reconfigurable mixed-signal processing circuits ensure multi-mode operations with minimum area overhead. Fabricated in 0.18μ m CMOS, the prototype sensor consumes 6.5μ W and 12.7μ W at 30fps for full 8-direction LBP-E and ED, achieving the state-of-the-art FoMs of 2.0 and 3.9 pJ/pixel/direction, respectively. Measurement results also demonstrate high-accuracy on-chip LBP-E, with a histogram similarity of up to 97.5% compared to the DSP one.
DOI	10.1109/VLSIC.2018.8502214
URL	View the original
Language	英語English
Scopus ID	2-s2.0-85056906541
Fulltext Access	View Full-Text via DOI View Full-Text via Scopus
Citation statistics
Document Type	Conference paper
Collection	INSTITUTE OF MICROELECTRONICS
Affiliation	1.Hong Kong University of Science and Technology,Hong Kong 2.Hamad Bin Khalifa University,Qatar 3.University of Macau,Macao
Recommended Citation GB/T 7714	Zhong，Xiaopeng,Yu，Qian,Bermak，Amine,et al. A 2PJ/Pixel/Direction MIMO Processing Based CMOS Image Sensor for Omnidirectional Local Binary Pattern Extraction and Edge Detection[C], 2018, 247-248.
APA	Zhong，Xiaopeng., Yu，Qian., Bermak，Amine., Tsui，Chi Ying., & Law，May Kay (2018). A 2PJ/Pixel/Direction MIMO Processing Based CMOS Image Sensor for Omnidirectional Local Binary Pattern Extraction and Edge Detection. IEEE Symposium on VLSI Circuits, Digest of Technical Papers, 2018-June, 247-248.

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