Analog Front-End Circuit Design for Digital Image Processing
| Autor: | Wen-Hong Su, 蘇文鴻 |
|---|---|
| Rok vydání: | 2010 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 98 With the proliferation of digital cameras and multi-functional printers, document scanning has become much more easily. Image processor IC’s have been popular consumer electronic products. The core image processor IC’s can be classified two catalogs: one is based on CMOS technologies and the other is with CCD architecture. The two factors, price and resolution actually determine the applications of the two image processor IC’s. The CCD based image IC’s have the advantages of high S/N and large dynamic range, which therefore are employed in the products of high resolution and high scan speed. By contract, CMOS based image IC’s are used in low-resolution and low-speed products. In this thesis, we present the analog front-end readout circuit design specifications of CMOS image IC’s. Meanwhile, we also propose a novel architecture of the readout circuits to improve the S/N of CMOS based image IC’s, which we expect the proposed architecture can be applied in high-resolution and high-speed image circuits. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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