发明名称 |
APPARATUS AND A METHOD FOR RATE-DISTORTION OPTIMIZATION IN A MOVING PICTURE COMPRESSION ENCODER TO ENHANCE PERFORMANCE OF THE MOVING PICTURE COMPRESSION ENCODER |
摘要 |
PURPOSE: An apparatus and a method for rate-distortion optimization in a moving picture compression encoder are provided to enhance performance of the moving picture compression encoder by using an objective picture quality evaluation numeric approximating a subjective picture quality evaluation numeric. CONSTITUTION: A rate-distortion optimization apparatus is applied to a moving picture compression encoder. A picture quality evaluation unit(10) computes an objective picture quality evaluation numeric approximating a subjective picture quality evaluation numeric. An optimum distortion-computing unit(20) receives the objective picture quality evaluation numeric from the picture quality evaluation unit and computes a distortion value optimized according to a bit-rate of an object moving picture and a predetermined weight. Herein, a parameter group applied to the rate-distortion optimization apparatus is extracted by an output value from the optimum distortion-computing unit. |
申请公布号 |
KR20040107850(A) |
申请公布日期 |
2004.12.23 |
申请号 |
KR20030038489 |
申请日期 |
2003.06.14 |
申请人 |
SK TELECOM CO., LTD. |
发明人 |
CHAE, SANG HO;LEE, JUNG YUN;LEE, SANG U;NA, DONG WON;PARK, HYEON JUNG;YOON, HONG SEO |
分类号 |
H04N19/154;(IPC1-7):H04N7/24 |
主分类号 |
H04N19/154 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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