| Presentation | 1997/8/22 A CMOS image sensor for focal-plane compression using analog 2-D DCT and ADC/Quantizer Shoji KAWAHITO, Makoto YOSHIDA, Keijiro UMEHARA, Masaaki SASAKI, Daisuke MIYAZAKI, Yoshiaki TADOKORO, Kenji MURATA, Shirou DOUSYOU, Akira MATSUZAWA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper describes the design and the implementation of a CMOS image sensor integrating focal-plane compression using an analog 2-dimensional discrete cosine transform(2-D DCT) processor and variable-quantization-level A/D converter. The proposed focal-plane compression scheme is particularly useful for high-speed cameras and low-cost, low-power portable cameras. The PSNR of the reconstructed image using the on-sensor analog 2-D DCT circuits is 36.7dB. The power dissipation of the analog 2-D DCT circuits is about 10.8mW at 3V. The total one-chip camera system power is estimated to be about 30mW, allowing us to use for portable devices. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | CMOS image sensor / Focal-plane image compression / Analog 2-D DCT circuits |
| Paper # | ICD97-115 |
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| Conference Information | |
| Committee | ICD |
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| Conference Date | 1997/8/22(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
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| Assistant | |
| Paper Information | |
| Registration To | Integrated Circuits and Devices (ICD) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A CMOS image sensor for focal-plane compression using analog 2-D DCT and ADC/Quantizer |
| Sub Title (in English) | |
| Keyword(1) | CMOS image sensor |
| Keyword(2) | Focal-plane image compression |
| Keyword(3) | Analog 2-D DCT circuits |
| 1st Author's Name | Shoji KAWAHITO |
| 1st Author's Affiliation | Department of Information and Computer Sciences Toyohashi University of Technology() |
| 2nd Author's Name | Makoto YOSHIDA |
| 2nd Author's Affiliation | Department of Information and Computer Sciences Toyohashi University of Technology |
| 3rd Author's Name | Keijiro UMEHARA |
| 3rd Author's Affiliation | Department of Information and Computer Sciences Toyohashi University of Technology |
| 4th Author's Name | Masaaki SASAKI |
| 4th Author's Affiliation | Department of Information and Computer Sciences Toyohashi University of Technology |
| 5th Author's Name | Daisuke MIYAZAKI |
| 5th Author's Affiliation | Department of Information and Computer Sciences Toyohashi University of Technology |
| 6th Author's Name | Yoshiaki TADOKORO |
| 6th Author's Affiliation | Department of Information and Computer Sciences Toyohashi University of Technology |
| 7th Author's Name | Kenji MURATA |
| 7th Author's Affiliation | Semiconductor Research, Center, Matsushita Electric Industrial Co., Ltd. |
| 8th Author's Name | Shirou DOUSYOU |
| 8th Author's Affiliation | Semiconductor Research, Center, Matsushita Electric Industrial Co., Ltd. |
| 9th Author's Name | Akira MATSUZAWA |
| 9th Author's Affiliation | Semiconductor Research, Center, Matsushita Electric Industrial Co., Ltd. |
| Date | 1997/8/22 |
| Paper # | ICD97-115 |
| Volume (vol) | vol.97 |
| Number (no) | 230 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |