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A μc-Si:H P-I-N Imager For 2-D Pattern Recognition

  • J. Martins (a1), M. Fernandes (a1), F. Sousa (a1), P. Louro (a1), A. MaçArico (a1) and M. Vieira (a2)...

Abstract

A TCO/ μc-p-i-n Si:H/AI imager is presented and analyzed. The μc-p-i-n Si:H photodiode acts as a sensing element. Contacts are used as an electrical interface. The image is acquired by a scan-out process. Sampling is performed on a rectangular grid, and the read-out of the photogenerated charges is achieved by measuring simultaneously both transverse photovoltages at the coplanar electrodes. The image representation in gray-tones is obtained by using low level processing algorithms. Basic image processing algorithms are developed for image enhancement and restoration.

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A μc-Si:H P-I-N Imager For 2-D Pattern Recognition

  • J. Martins (a1), M. Fernandes (a1), F. Sousa (a1), P. Louro (a1), A. MaçArico (a1) and M. Vieira (a2)...

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