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浏览/检索结果: 共3条，第1-3条 帮助 已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Vibration parameter measurement of TDICCD space camera with mechanical assembly 期刊论文 Guangxue Jingmi Gongcheng/Optics and Precision Engineering, 2015, 卷号: 23, 期号: 3, 页码: 729-737 作者:  Liu, H.-L.;  C.-S. Han;  X.-Z. Li;  X.-N. Jiang;  X.-C. Sun and Y. Fu 收藏  |  浏览/下载：15/0  |  提交时间：2016/08/24 Design of high speed and parallel compression system used in the big area CCD of high frame frequency (EI CONFERENCE) 会议论文 2011 International Conference on Precision Engineering and Non-Traditional Machining, PENTM 2011, December 9, 2011 - December 11, 2011, Xi'an, China Liu Y.-Y.; Gao Y.-H.; Li G.-N.; Wang W.-H.; Zhang R.-F.; Jin L.-X. 收藏  |  浏览/下载：47/0  |  提交时间：2013/03/25 According to the area CCD camera of characteristics  such as high resolution capacity and high frame frequency  this paper puts forward a high speed and parallel image compression system of high integration degree. Firstly  according to the work principle of the area CCD  FPGA is adopted to realize the timing driving and multichannel and parallel analog signal handling to raise the export frame frequency of the area CCD. Secondly  with an image compression scheme based on FPGA embedded processor MicroBlaze and ADV212 compression chip  real time image compression and the high speed area CCD are realized. Finally  by detecting the analog signal of the area CCD output  the real time compression of the big area CCD image is carried out in different compression ratios and the compression performance is analyzed. Experiment result shows that this scheme can realize real time image compression with the biggest data rate of 520Mbps. When compression bit ratio is 0.15  the signal-to-noise ratio of peak value can reach 36 dB. Image collection and image compression are integrated  which reduces the data transmission between them and improves systematic integration degree.   multiobjectivedynamicdetectionofseedsbasedonmachinevision 期刊论文 progressinnaturalsciencematerialsinternational, 2007, 卷号: 17, 期号: 2, 页码: 217 作者:  Xun Yi;  Zhang Junxiong;  Li Wei;  Cai Weiguo 收藏  |  浏览/下载：16/0  |  提交时间：2019/12/02