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A CMOS image sensor with pseudorandom pixel placement for clear imaging
Authors
Akita Junichi
Maeda Yui
Publication date
1 January 2009
Publisher
IEEE = Institute of Electrical and Electronics Engineers
Abstract
金沢大学理工研究域電子情報学系The picture element (pixel) in conventional image sensors, such as CCD or CMOS imager, are placed in the form of a lattice for ease of implementation. Lattice placement of pixels intrinsically has directional dependency on the clarity of image representation; in other words, the image clarity is significantly dependent on the directions of the objects in the image, such as lines. For example, horizontal lines are perfectly represented by lattice pixels, while slanted lines have jagged edges. In this paper, we propose a pseudorandom pixel placement architecture for clear imaging with solving the directional dependency problems. We also discuss our evaluation of its characteristics based on the designed layout of CMOS image sensor with pseudorandom pixel placement, as well as its implementation. ©2009 IEEE
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Last time updated on 06/05/2019