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浏览/检索结果: 共1条，第1-1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 Contrast research on interpolation and subpixel imaging in CCD geometric superresolution reconstruction (EI CONFERENCE) 会议论文 1st Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics, PrimeAsia 2009, November 19, 2009 - November 21, 2009, Shanghai, China Xu Z.-P.; Ge W.-Q.; Yang S.-W.; Xu Y.-S.; Zhai L.-P. 收藏  |  浏览/下载：17/0  |  提交时间：2013/03/25 In order to enhance the resolution of Charge Coupled Device (CCD) pixel with the pixel dimension and focal length of optical system unchanged  the problem of CCD geometric superresolution is educed. The problem is discussed in terms of software and hardware. In software  the bicubic interpolation is introduced  while in hardware  the subpixel imaging method is utilized. The subpixel imaging method integrates two uniform linear CCDs staggered by half dimension of pixel in one device. In operation  the line frequency is doubled. At last  the collected data is interweaved to synthesize a high resolution image. The two methods  bicubic interpolation and subpixel imaging  are simulated with Matlab7.0.1. The qualitative and quantitative analyses are given. The simulated results of lanczos and cubic spline interpolation methods are given simultaneously to show the performance of interpolation. The simulation result shows that the result images quality becomes better in both methods  but compared with bicubic interpolation method  the synthesized image PSNR gained from sub-pixel imaging is averagely enhanced by 2.1682dB  while the elapsed time is reduced to be about one forth. The subpixel imaging method could significantly mitigate the image blur introduced by undersample. 2009 IEEE.