%0 Journal Article
%T A 1,000 Frames/s Programmable Vision Chip with Variable Resolution and Row-Pixel-Mixed Parallel Image Processors
%A Qingyu Lin
%A Wei Miao
%A Wancheng Zhang
%A Qiuyu Fu
%A Nanjian Wu
%J Sensors
%D 2009
%I MDPI AG
%R 10.3390/s90805933
%X A programmable vision chip with variable resolution and row-pixel-mixed parallel image processors is presented. The chip consists of a CMOS sensor array, with row-parallel 6-bit Algorithmic ADCs, row-parallel gray-scale image processors, pixel-parallel SIMD Processing Element (PE) array, and instruction controller. The resolution of the image in the chip is variable: high resolution for a focused area and low resolution for general view. It implements gray-scale and binary mathematical morphology algorithms in series to carry out low-level and mid-level image processing and sends out features of the image for various applications. It can perform image processing at over 1,000 frames/s (fps). A prototype chip with 64 ¡Á 64 pixels resolution and 6-bit gray-scale image is fabricated in 0.18 mm Standard CMOS process. The area size of chip is 1.5 mm ¡Á 3.5 mm. Each pixel size is 9.5 ¦Ìm ¡Á 9.5 ¦Ìm and each processing element size is 23 ¦Ìm ¡Á 29 ¦Ìm. The experiment results demonstrate that the chip can perform low-level and mid-level image processing and it can be applied in the real-time vision applications, such as high speed target tracking.
%K vision chip
%K image processing
%K machine vision
%K mathematical morphology
%U http://www.mdpi.com/1424-8220/9/8/5933