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With higher sensor resolutions available, the speed and dynamic range requirements for image processors in digital imaging systems are more demanding. A 12-bit, 50 mpixels/s digital image acquisition system balances power and performance. The analog processor's total power dissipation is only 150 mw at full speed-an enviable quality for the portable market. Although the underlying technique requires special analog circuitry to handle fast gain changes, it achieves a far wider dynamic range.
Ion E. Opris, Seiichiro Watanabe, "A Fast Analog Front-End Processor for Digital Imaging Systems", IEEE Micro, vol. 21, no. , pp. 48-54, March/April 2001, doi:10.1109/40.918002
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