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浏览/检索结果: 共8条，第1-8条 帮助 限定条件 专题：长春光学精密机械与物理研究所    第一署名单位    第一作者单位    通讯作者单位     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 Region-of-interest based rate control for UAV video coding 期刊论文 Optoelectronics Letters, 2016, 卷号: 12, 期号: 3 作者:  Zhao, C.-l.;  M. Dai and J.-y. Xiong 收藏  |  浏览/下载：21/0  |  提交时间：2017/09/11 Red emission generation through highly efficient energy transfer from Ce3+ to Mn2+ in CaO for warm white LEDs 期刊论文 Dalton Transactions, 2016, 卷号: 45, 期号: 4 作者:  Feng, L. Y.;  Z. D. Hao;  X. Zhang;  L. L. Zhang;  G. H. Pan 收藏  |  浏览/下载：14/0  |  提交时间：2017/09/11 Optimization and experiments of deployment performance for folding wing mechanism of an aircraft 期刊论文 Guangxue Jingmi Gongcheng/Optics and Precision Engineering, 2016, 卷号: 24, 期号: 9 作者:  Han, X.-F.;  X.-D. Liu;  W.-Y. Ma;  Q. Ma and D.-M. Yuan 收藏  |  浏览/下载：11/0  |  提交时间：2017/09/11 Fast prediction unit selection method for HEVC intra prediction based on salient regions 期刊论文 Optoelectronics Letters, 2016, 卷号: 12, 期号: 4 作者:  Feng, L.;  M. Dai;  C.-l. Zhao and J.-y. Xiong 收藏  |  浏览/下载：21/0  |  提交时间：2017/09/11 HEVC rate control for unmanned aerial vehicle airborne reconnaissance 期刊论文 Guangxue Jingmi Gongcheng/Optics and Precision Engineering, 2015, 卷号: 23, 期号: 12, 页码: 3500-3508 作者:  Zhao, C.-L.;  M. Dai and C.-L. Yin 收藏  |  浏览/下载：13/0  |  提交时间：2016/08/24 给予HVS的H.264/AVC码率控制算法研究 学位论文 博士: 中国科学院大学, 2014 孙乐 收藏  |  浏览/下载：43/0  |  提交时间：2014/08/21 High speed, low memory image coding using zero blocks of wavelet coefficients (EI CONFERENCE) 会议论文 4th International Conference on Image and Graphics, ICIG 2007, August 22, 2007 - August 24, 2007, Chengdu, China Yang W.-G.; Zhang T.; Zhang J.-D. 收藏  |  浏览/下载：21/0  |  提交时间：2013/03/25 We propose a new high speed  low memory SPECK image coder based on the form of block-unit states  called LBUS-SPECK  which uses the form of block-unit states and the form of block exponents to substitute LIS and LSP of SPECK. A form of block-unit states is introduced to store the significance flag of coefficients and the value of the block-unit exponents. A form of block exponents is introduced to store the block exponents which are used to represent the max coefficient in a decomposed block. A new block depth-finding strategy is developed for searching insignificant sets at sorting stage. Experimental results show that the obtained PSNR values for the decoded images are very close to those of SPECK algorithm and the memory consumption is reduced by 9 times  the encoding timing is saved about 15%. Comparing with SPECK algorithm  this algorithm not only has better performance of the decoded images  but also is easy to implement  especially  it provides an efficient way for hardware implementation of wavelet embedded block coding. 2007 IEEE.   Study on CCD image compression and mass storage (EI CONFERENCE) 会议论文 ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China Liu H.; Zhai L.; Xiu J.; Zhao X. 收藏  |  浏览/下载：21/0  |  提交时间：2013/03/25 When CCD camera photographs massive images in the air  it is very important to compress and save CCD image timely and validly. This paper designs the CCD image compression and mass storage system. The one part is image compression: this paper introduces a reduced memory still image compression algorithm based on Listless Zerotree Coding (LZC). Compared with SPIHT  the approach significantly reduced memory requirement and no reducing the quality of the reconstructed image. The other part is image mass storage: this system uses a kind of special hard disk storage devices that can realize faster data transmission to SCSI (Small Computer System Interface) devices even if it separates oneself from PCs. In the faster data acquisition and storage system  data storage is a key technology. Normal approach is saving the data to mass memories  and then processing and saving the data after complete acquisition. The continuous acquisition time is restricted with the storage capacity in the normal method so that it can't receive the requirement of CCD image storage on many occasions. While its price will be geminate increasing  when we increase the storage capacity. So the approach in this paper is better one to use fast disks on data direct mass storage considering the storage capacity  read/write speed and unit cost. The result of the experiment shows that the system has compressed and saved CCD image validly  so it reached the anticipative purpose.