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中国科学院机构知识库网格

Chinese Academy of Sciences Institutional Repositories Grid

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	The research on statistical properties of TDI-CCD imaging noise (EI CONFERENCE) 会议论文 OAI收割 International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Imaging Detectors and Applications, May 24, 2011 - May 26, 2011, Beijing, China Gu Y.-Y.; Shen X.-H.; He G.-X. 收藏 \| 浏览/下载：31/0 \| 提交时间：2013/03/25 TDI-CCD can improve the sensitivity of space camera without any degradation of spatial resolution which is widely used in aerospace imaging devices. The article describes the basic working principle and application characteristics of TDI-CCD devices analyses the composition of TDI-CCD imaging noise and propose a new method to analyze TDI-CCD imaging noise with statistical probability distribution. In order to estimate the distribution of gray values affect by noise we introduced the concept of skewness and kurtosis. We design an experiment using constant illumination light source take image with TDI-CCD working at different stage such as stage 16 stage 32 stage 48 stage 64 and stage 96 analyse the characteristics of image noise with the method we proposed experimental results show that the gray values approximately meet normal distribution in large sample cases. 2011 SPIE.
	Noise processing technology of a TDICCD sensor (EI CONFERENCE) 会议论文 OAI收割 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China 作者: Zhang L.-P. 收藏 \| 浏览/下载：21/0 \| 提交时间：2013/03/25 In the application of TDI-CCD the other is all kinds of interference noise produced in the working process of a TDI-CCD for reset noise because of its serious noise interference such as reset noise and 1 / f noise correlated double sampling is employed. The experimental results show that after noise processing the imaging quality is reduced etc. According to the features of noise the output S/N has been raised to about 50 dB. 2010 IEEE. so that it is necessary to study the noise characteristics of TDI-CCD. There are two categories of noise this paper has studied the corresponding noise-processing technology. For dark current noise one is the inherent noise refrigeration is taken including shot noise dark current noise fixed pattern noise and transfer noise etc.
	A TDI CCD simulation instrument (EI CONFERENCE) 会议论文 OAI收割 2009 IEEE International Conference on Mechatronics and Automation, ICMA 2009, August 9, 2009 - August 12, 2009, Changchun, China 作者: Liu H.; Li Y.; Li Y.; Li Y.; Li Y. 收藏 \| 浏览/下载：17/0 \| 提交时间：2013/03/25 TDI CCD is widely used in the high speed imaging camera glimmering vision and robotic vision fields because of its excellent operation. But TDI CCD's high ordering price and easy damage in circuit testing usually limit its application in real projects. In this paper basing the simulation of both the photoelectronic character and electronic character a instrument is described in details. 2009 IEEE.