发明名称 |
Motion compensation encoding method and apparatus adaptive to motion amount |
摘要 |
A motion compensating encoding apparatus responsive to a motion amount adaptively generates motion-compensated pixel values for performing differential pulse code modulation of pixel values of image even when the amount of motion compensation required motion-compensated with respect to a reference image is beyond a predetermined motion amount. The motion compensation encoding apparatus includes a global motion estimator for generating a global motion vector representing a spatial position difference between the reference image according to first pixel values stored in a first memory and the current image according to second pixel values stored in a second memory, motion-compensating the reference image on the basis of the generated global motion vector and storing the pixel values of the motion-compensated reference image, a local motion estimator for generating a local motion vector according to comparison of the pixel values between a current video block, which is formed from the second pixel values and which has a size smaller than the current image and a search area formed by part of the pixel values stored in the global motion estimator, a motion compensator for receiving the local motion vector from the local motion estimator and generating motion-compensated pixel values by using the pixel values stored in the global motion estimator and the local motion vector, and a unit for generating a difference value between the respective pixel values of each image secondly output from the second memory and the corresponding motion-compensated pixel values output from the motion compensator. A non-intracoding method is also described.
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申请公布号 |
US5657087(A) |
申请公布日期 |
1997.08.12 |
申请号 |
US19950490704 |
申请日期 |
1995.06.15 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
JEONG, JECHANG;KIM, SUNGTAE |
分类号 |
H04N7/32;H03M7/36;H04N7/24;H04N7/26;H04N7/36;H04N7/50;(IPC1-7):H04N7/36 |
主分类号 |
H04N7/32 |
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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