K. Umehara

A CMOS image sensor with analog two-dimensional DCT-based compression circuits for one-chip cameras

Akira Matsuzawa, Yoshiaki Tadokoro, Daisuke Miyazaki, 1997, IEEE J. Solid State Circuits.

An On-chip Image Encoder of Functional Image Sensor Using Analog 2-D DCT Processor and Adaptive ADC/Quantizer

Akira Matsuzawa, Yoshiaki Tadokoro, Shoji Kawahito, 1996 .

Solid State Imaging Techniques. A CMOS Image Sensor for Focal-plane Compression using Analog 2-D DCT Circuits and an Adaptive Resolution A/D Converter.

Akira Matsuzawa, Yoshiaki Tadokoro, Daisuke Miyazaki, 1998 .

AM-coded spectral matching imager using correlation image sensor

Akira Kimachi, K. Umehara, K. Umehara, 2002, Proceedings of the 41st SICE Annual Conference. SICE 2002..

A compressed digital output CMOS image sensor with analog 2-D DCT processors and ADC/quantizer

A. Matsuzawa, M. Yoshida, S. Kawahito, 1997, 1997 IEEE International Solids-State Circuits Conference. Digest of Technical Papers.

A CMOS image sensor with analog two-dimensional DCT-based compression circuits for one-chip cameras

Akira Matsuzawa, Yoshiaki Tadokoro, Daisuke Miyazaki, 1997, IEEE J. Solid State Circuits.