Hiroyuki Komatsu

Electronic image stabilizer for video camera use

A compact electronic image stabilizer has been realized on the basis of: (1) scanning area selection of the imager, and (2) motion vector detection. The stabilization rate is 18 dB at 1 Hz. This system is suitable for compact video cameras, but the stabilization rate becomes poor at high frequency. Therefore, an advanced system was also designed. >

Digital Still Camera System For Megapixel CCD

We have developed a digital still camera system processing images by a combination of hardware and software to meet the demand of both high speed and flexibility. The system is capable of supporting CCDs with image size from VGA (640/spl times/480) to SXGA (1280/spl times/960), progressive and interlaced type scanning, and color filters of primary RGB and complementary MGCY signals. The still image processing time for YUV conversion is completed in approximately one frame for the progressive scan type CCD.

An Electronic Zoom Video Camera Using Imager Scanning Control

An electronic zoom system for video camera use has been developed. Zoom ratios were designed to be smoothly changed vertically and horizontally by controlling imager scanning and line memory scanning, respectively. Two CMOS digital LSIs, a scanning pulse generator, and a signal zoom processor were developed for this electronic zoom system. >

A RGB- gamma CCD camera with a novel color matrix

The authors describe a simplified RGB- gamma signal processing system with a single-chip CCD (charge-coupled device) imager and two BiCMOS LSIs, which led to the realization of a compact camera with good color reproduction. Two ICs, a signal processing IC and an imager drive IC, were developed. Adopting this simplified system, a CCD camera was realized which is small in size, free from aliasing, and excellent in color reproduction. >

A real-time object extraction processor

We have developed an LSI for extracting a target object from a moving video image using 0.8 /spl mu/m CMOS technology. By incorporating CPUs in the chip and applying a novel algorithm called sequential growing (SG), real-time operation is realized. This chip is able to extract at most twelve objects, label them, and compute their position and size every 1/60 second.<<ETX>>