A high-speed CMOS image sensor with profile data acquiring function

We have developed a Profile Imager aimed at high-speed automatic target tracking. The Profile Imager can perform both target tracking within a 512 /spl times/ 512-pixel entire image area and acquisition of partial images simultaneously and independently. Experimental results of capturing 128 /spl times/ 128-pixel partial images of an automobile license plate at 1620 frames/s are presented. In addition, results of integrating 89 partial images demonstrate the capability of the device as a high-speed, high-resolution, high-dynamic-range image tracker. A 0.6-/spl mu/m two-poly three-metal CMOS process is used to implement a 13.0 mm /spl times/ 14.3 mm imager.

[1]  Idaku Ishii,et al.  A digital vision chip specialized for high-speed target tracking , 2003 .

[2]  Masatoshi Ishikawa,et al.  Column parallel vision system (CPV) for high-speed 2D image analysis , 2001, Optical Engineering for Sensing and Nanotechnology.

[3]  M. Ishikawa,et al.  A CMOS vision chip with SIMD processing element array for 1 ms image processing , 1999, 1999 IEEE International Solid-State Circuits Conference. Digest of Technical Papers. ISSCC. First Edition (Cat. No.99CH36278).

[4]  Alexander I. Krymski,et al.  A 9-V/Lux-s 5000-frames/s 512/spl times/512 CMOS sensor , 2003 .

[5]  B.J. Hosticka,et al.  A 1K×1K high dynamic range CMOS image sensor with on-chip programmable region of interest readout , 2002, Proceedings of the 27th European Solid-State Circuits Conference.

[6]  Eric R. Fossum,et al.  A high-speed, 240-frames/s, 4.1-Mpixel CMOS sensor , 2003 .

[7]  Suk Hwan Lim,et al.  A 10,000 Frames/s 0.18 μm CMOS Digital Pixel Sensor with Pixel-Level Memory , 2001 .

[8]  M. Ishikawa,et al.  Digital vision chips and high-speed vision systems , 2001, 2001 Symposium on VLSI Circuits. Digest of Technical Papers (IEEE Cat. No.01CH37185).