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SYSTEM AND METHOD FOR ENCHANCING VIDEOS FROM DRIFT-FREE SCALABLE BITSTREAM
申请(专利号：
AU20030232966 专利号： AU2003232966A1 主分类号： H04N7/26 申请权利人：
KONINKLIJKE PHILIPS ELECTRONICS N.V. 公开国代码： AU 优先权国家：
IB; US 摘要：
A scalable decoder system having a decoder reconstruction system, wherein the decoder reconstruction system comprises: an estimation algorithm

<mrow><<word>msubsup><mover><mi>x</mi><mo>~</m<word>o></mover><mrow><mi>i</mi><mo>,</m<word>o><mi>n</mi></mrow><mi>e</mi></msu<word>bsup><mo>=</mo><mrow><msub><mi><word>a</mi><mrow><mi>i</mi><mo>,</mo><<word>mi>n</mi></mrow></msub><mo>+</mo><word><mrow><msub><mi>E</mi><mi>Z</mi><<word>/msub><mo>⁢</mo><mrow><mo><word>{</mo><mrow><msub><mi>d</mi><mro<word>w><mi>i</mi><mo>,</mo><mi>n</mi></<word>mrow></msub><mo>⁡</mo><mro<word>w><mo>(</mo><mrow><mi>ρ</<word>mi><mo>;</mo><mrow><msubsup><mov</word><word>er><mi>x</mi><mo>~</mo></mover><mr</word><pic><word>申请日：<word> <word>2003-05-27 <word>公开公告日：<br/><word>2003-12-12 </word><word>分类号：<br/><word>H04N7/26; </word><word>H04N7/68 <word>发明设计人：<br/><word>YINGWEI CHEN; </word></word><word>JONG, C. YE </word><word>申请国代码：<br/><word>AU </word><word>优先权：<br/><word>20030527 IB </word><word>0302027; <word>20020529 US </word><word>15766602 </word><word>摘<word> <word>要<word> <word>附<word> <word>图：</word><br/></word><br/><br/><word>ow><mi>i</mi><mo>,</mo><mrow><mi><word>n</mi><mo>-<word></mo><mn>1</mn></mrow></mrow><mi<word>>e</mi></msubsup><mo>+</mo><mi>Z<<word>/mi></mrow></mrow><mo></mo></mro<word>w></mrow><mo>}</mo></mrow></mrow<word>></mrow></mrow> nalFileRef file="US20030223642A1-

20031204-M00001.NB" id="MATHEMATICA-00001"/>;for estimating a lost discrete cosine transform (DCT coefficient, which incorporates the quantization noise of previous enhancement layer data into the expectation, wherein the estimation algorithm includes a density distribution dependent on at least one unknown parameter {circumflex over (}_l; and a parameter estimation algorithm for estimating {circumflex over (}_laccording to the equation:

<mrow><<word>mrow><msub><mover><mi>α<word></mi><mo>^</mo></mover><mi>l</mi></<word>msub><mo>=</mo><mrow><mo>-<word></mo><mfrac><mrow><mi>log</mi><mo<word>>⁡</mo><mrow><mo>(</mo><mr<word>ow><mn>1</mn><mo>-<word></mo><msub><mover><mi>P</mi><mo><word>^</mo></mover><mi>l</mi></msub></mr<word>ow><mo></mo></mrow></mrow><msub<word>><mi>b</mi><mi>l</mi></msub></mfrac><word></mrow></mrow><mo>,</mo></mrow> ]]</word><word>></MathText><ExternalFileRef </word><word>file="US20030223642A1-20031204-<word>M00002.NB" id="MATHEMATICA-</word><word>00002"/></Math>;wherein b<Sub>l </word><word></Sub>denotes each of a set of quantizer <word>decision levels l, and {circumflex over <word>(P}<Sub>l </Sub>is the sum of a set of a <word>normalized frequency of occurrences of </word><word>data quantized to each quantizer decision </word><br/><word>level 1,2, . . . , l.  <word>主权项：<word> <br/><word>  </word></word><br/><br/><word>权<word> <word>利<word> <word>要<word> <word>求<word> <word>说<word> <word>明<word> <word>书</word><br/><word>【<word>SYSTEM AND METHOD FOR ENCHANCING VIDEOS FROM DRIFT-FREE <word>SCALABLE BITSTREAM<word>】的权利说明书内容是<word>......<word>请下载后查看</word><br/></word><word>  </word></word><br/><br/><word>说<word>  <word>明<word>  <word>书</word><br/><word>【<word>SYSTEM AND METHOD FOR ENCHANCING VIDEOS FROM DRIFT-FREE <word>SCALABLE BITSTREAM<word>】的说明书内容是<word>......<word>请下载后查看</word><br/><br/>                          
                           
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