CMOS vision sensor with fully digital image process integrated into low power 1/8-inch chip

A digital still camera image processing system on a chip, different from the video camera system; is presented for mobile phone to reduce the power consumption and size. A new color interpolation algorithm is proposed to enhance the image quality The system can also process fixed patten noise (FPN) reduction, color correction, gamma correction. RGB/YUV space transfer, etc The chip is controlled by sensor registers by inter-integrated circuit ((IC)-C-2) interface. The voltage for both the front-end analog and the pad circuits is 2.8 V, and the volatge for the image signal processing is 1 8 V The chip running under the external 13.5-MHz clock has a video data rate of 30 frames/s and the measured power dissipation is about 75 mW