Title :
A 120μW 240×110@25fps vision chip with ROI detection SIMD processing unit
Author :
Verdant, A. ; Dupret, A. ; Villard, Patrick ; Alacoque, Laurent ; Mathias, Herve ; Delgehier, Flavien
Author_Institution :
LETI, CEA, Grenoble, France
Abstract :
A smart ultra-low power CMOS image sensor comprising an analog programmable processor array is reported. Compact and efficient motion detection algorithms are implemented to process sub-sampled images made of so-called macropixels. Only Regions of Interest (ROI) consisting of macropixels containing moving objects are read out. This drastically reduces power consumption: the 110×240 pixel image sensor fabricated in a 0.35μm technology features a power consumption of 120μW at 25fps.
Keywords :
CMOS image sensors; image motion analysis; image sampling; low-power electronics; parallel processing; ROI detection SIMD processing unit; analog programmable processor array; compact motion detection algorithm; efficient motion detection algorithm; macropixels; moving objects; power 120 muW; power consumption; region-of-interest; size 0.35 mum; smart ultralow-power CMOS image sensor; subsampled image process; vision chip; Algorithm design and analysis; Arrays; Image sensors; Motion detection; Power demand; Random access memory;
Conference_Titel :
Circuits and Systems (ISCAS), 2013 IEEE International Symposium on
Conference_Location :
Beijing
Print_ISBN :
978-1-4673-5760-9
DOI :
10.1109/ISCAS.2013.6572365
