中华视频网 - h_264压缩性能和应用分析.htm

关于h.264的一些论文

                              face="Times New Roman">    
                              </FONT></SPAN></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">与以前的视频压缩标准</SPAN><SPAN 
                              lang=EN-US><FONT 
                              face="Times New Roman">H.261</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</SPAN><SPAN 
                              lang=EN-US><FONT 
                              face="Times New Roman">H.263</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</SPAN><SPAN 
                              lang=EN-US><FONT 
                              face="Times New Roman">MPEG-1</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</SPAN><SPAN 
                              lang=EN-US><FONT 
                              face="Times New Roman">MPEG-2</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</SPAN><SPAN 
                              lang=EN-US><FONT 
                              face="Times New Roman">MPEG-4</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">类似，</SPAN><SPAN 
                              lang=EN-US><FONT 
                              face="Times New Roman">H.264</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">也是采用帧间预测和帧内变换的混合编码方法来消除或减少图像中的信息冗余。</SPAN><SPAN 
                              lang=EN-US><o:p></o:p></SPAN></FONT></P>
                              <P class=MsoNormal 
                              style="MARGIN: 0cm 0cm 0pt"><SPAN 
                              lang=EN-US><o:p><FONT face="Times New Roman" 
                              size=3>&nbsp;</FONT></o:p></SPAN></P>
                              <P class=MsoNormal 
                              style="MARGIN: 0cm 0cm 0pt"><FONT size=3><SPAN 
                              lang=EN-US><SPAN style="mso-spacerun: yes"><FONT 
                              face="Times New Roman">&nbsp;&nbsp;&nbsp; 
                              </FONT></SPAN></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">但是，</SPAN><SPAN 
                              lang=EN-US><FONT 
                              face="Times New Roman">H.264</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">采用了许多新技术以提高压缩效率，其主要技术特点包括：</SPAN><SPAN 
                              lang=EN-US><o:p></o:p></SPAN></FONT></P>
                              <P class=MsoNormal 
                              style="MARGIN: 0cm 0cm 0pt"><FONT size=3><SPAN 
                              lang=EN-US><FONT 
                              face="Times New Roman">(1)4&#61477;4</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">类</SPAN><SPAN 
                              lang=EN-US><FONT 
                              face="Times New Roman">DCT</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">整数变换以及相应的量化方法；</SPAN><SPAN 
                              lang=EN-US><o:p></o:p></SPAN></FONT></P>
                              <P class=MsoNormal 
                              style="MARGIN: 0cm 0cm 0pt"><FONT size=3><SPAN 
                              lang=EN-US><FONT 
                              face="Times New Roman">(2)7</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">种宏块预测模式：</SPAN><SPAN 
                              lang=EN-US><FONT 
                              face="Times New Roman">16</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">×</SPAN><SPAN 
                              lang=EN-US><FONT face="Times New Roman">16, 
                              16</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">×</SPAN><SPAN 
                              lang=EN-US><FONT face="Times New Roman">8, 
                              8</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">×</SPAN><SPAN 
                              lang=EN-US><FONT face="Times New Roman">16, 
                              8</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">×</SPAN><SPAN 
                              lang=EN-US><FONT face="Times New Roman">8, 
                              8</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">×</SPAN><SPAN 
                              lang=EN-US><FONT face="Times New Roman">4, 
                              4</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">×</SPAN><SPAN 
                              lang=EN-US><FONT face="Times New Roman">8, 
                              4</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">×</SPAN><SPAN 
                              lang=EN-US><FONT 
                              face="Times New Roman">4</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，运动估计和补</SPAN><SPAN 
                              lang=EN-US><o:p></o:p></SPAN></FONT></P>
                              <P class=MsoNormal 
                              style="MARGIN: 0cm 0cm 0pt"><FONT size=3><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">偿更加精确；</SPAN><SPAN 
                              lang=EN-US><o:p></o:p></SPAN></FONT></P>
                              <P class=MsoNormal 
                              style="MARGIN: 0cm 0cm 0pt"><FONT size=3><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">（</SPAN><SPAN 
                              lang=EN-US><FONT 
                              face="Times New Roman">3</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）多参考帧；</SPAN><SPAN 
                              lang=EN-US><o:p></o:p></SPAN></FONT></P>
                              <P class=MsoNormal 
                              style="MARGIN: 0cm 0cm 0pt"><FONT size=3><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">（</SPAN><SPAN 
                              lang=EN-US><FONT 
                              face="Times New Roman">4</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）帧内预测；</SPAN><SPAN 
                              lang=EN-US><o:p></o:p></SPAN></FONT></P>
                              <P class=MsoNormal 
                              style="MARGIN: 0cm 0cm 0pt"><FONT size=3><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">（</SPAN><SPAN 
                              lang=EN-US><FONT 
                              face="Times New Roman">5</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）改进的去块效应滤波器（</SPAN><SPAN 
                              lang=EN-US><FONT face="Times New Roman">Deblocking 
                              filter</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）；</SPAN><SPAN 
                              lang=EN-US><o:p></o:p></SPAN></FONT></P>
                              <P class=MsoNormal 
                              style="MARGIN: 0cm 0cm 0pt"><FONT size=3><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">（</SPAN><SPAN 
                              lang=EN-US><FONT 
                              face="Times New Roman">6</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）增强的熵编码方法</SPAN><SPAN 
                              lang=EN-US><FONT 
                              face="Times New Roman">UVLC</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">（</SPAN><SPAN 
                              lang=EN-US><FONT face="Times New Roman">Universal 
                              VLC</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）、</SPAN><SPAN 
                              lang=EN-US><FONT 
                              face="Times New Roman">CAVLC</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">（</SPAN><SPAN 
                              lang=EN-US><FONT face="Times New Roman">Context 
                              adaptive VLC</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）和</SPAN><SPAN 
                              lang=EN-US><o:p></o:p></SPAN></FONT></P>
                              <P class=MsoNormal 
                              style="MARGIN: 0cm 0cm 0pt"><FONT size=3><SPAN 
                              lang=EN-US><FONT 
                              face="Times New Roman">CABAC</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">；</SPAN><SPAN 
                              lang=EN-US><o:p></o:p></SPAN></FONT></P>
                              <P class=MsoNormal 
                              style="MARGIN: 0cm 0cm 0pt"><FONT size=3><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">（</SPAN><SPAN 
                              lang=EN-US><FONT 
                              face="Times New Roman">7</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）</SPAN><SPAN 
                              lang=EN-US><FONT 
                              face="Times New Roman">1/4</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">像素插值；</SPAN><SPAN 
                              lang=EN-US><o:p></o:p></SPAN></FONT></P>
                              <P class=MsoNormal 
                              style="MARGIN: 0cm 0cm 0pt"><FONT size=3><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">（</SPAN><SPAN 
                              lang=EN-US><FONT 
                              face="Times New Roman">8</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）宏块级逐行、隔行自适应编码</SPAN><SPAN 
                              lang=EN-US><FONT 
                              face="Times New Roman">MBAFF</FONT></SPAN><SPAN 
                              style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">。</SPAN><SPAN 
                              lang=EN-US><o:p></o:p></SPAN></FONT></P>
                              <P class=MsoNormal 
                              style="MARGIN: 0cm 0cm 0pt"><SPAN 
                              lang=EN-US><o:p><FONT face="Times New Roman" 
                              size=3>&nbsp;</FONT></o:p></SPAN></P>
                              <P class=MsoNormal 
                              style="MARGIN: 0cm 0cm 0pt"><FONT size=3><SPAN