有哪些信誉好的足球投注网站- 1、本文档共28页，可阅读全部内容。
- 2、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。
- 3、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击 这里二次下载。
- 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。
查看更多
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ME DCT 2008 VCLab ME DCT 2008 VCLab DCT Transform and Its Implementation * ME DCT 2008 VCLab * Discrete Cosine Transform The most efficient suboptimum transform the elements of the kth basis vector: cos(k?(2n+1)/2N)s It has the advantage over all other suboptimum transforms in that its basis vectors resemble closely the basis vectors of the KLT for smoothly varying video inputs. (for a first-order Markov source model) The n-point DCT can be computed as a 2n-point DFT * ME DCT 2008 VCLab * Transform Coding System Forward transform Quantizer Binary encoder Inverse transform Inverse quantizer Binary decoder Network Input samples Output samples ÷10 ×10 e.g. zip, RAR Huffman coding * ME DCT 2008 VCLab * Representation of An Image How to code an image? Spatial domain (pixel-based) Transform domain * ME DCT 2008 VCLab * Use cosine function as its basis function Performance approaches KLT Fast algorithm exists Most popular in image compression applications Why Use DCT? Properties of DCT * ME DCT 2008 VCLab * Does Transform Really Make Sense ? Energy compaction De-correlation: dependency elimination * ME DCT 2008 VCLab * An Example 8 8 139 148 150 149 155 164 165 168 98 115 130 135 143 146 142 147 89 110 125 128 129 121 104 106 96 116 128 132 134 132 113 109 111 125 127 131 137 137 120 110 122 126 126 131 133 131 126 112 13
文档评论（0）