发明名称 |
Motion estimation apparatus and method |
摘要 |
Disclosed is a motion estimation apparatus and method capable of reduce a memory bandwidth by accessing reference image data occupying the largest part of the memory bandwidth based on a result of motion estimation skip determination. The motion estimation apparatus includes a motion estimation skip determination unit, a sum absolute of absolute difference (SAD) processing unit and a multiplexer (MUX) unit. The motion estimation skip determination unit determines the presence of motion estimation skip by reading current image data and skip reference image data, and outputs a motion vector in a skip mode. The SAD processing unit calculates an SAD value by reading the current image data and reference image data and outputs a motion vector in a normal mode. The MUX unit outputs the motion vector in the skip mode or the motion vector in the normal mode as a final motion vector based on a skip flag signal. |
申请公布号 |
US8737478(B2) |
申请公布日期 |
2014.05.27 |
申请号 |
US201113297291 |
申请日期 |
2011.11.16 |
申请人 |
PARK SEONG MO;EUM NAK WOONG;ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE |
发明人 |
PARK SEONG MO;EUM NAK WOONG |
分类号 |
H04N7/12;H04N11/02 |
主分类号 |
H04N7/12 |
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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