Method and apparatus for video coding at high efficiency
AssigneePioneer Corporation
InventorTsutomu Takahashi
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Abstract
High efficiency coding method and apparatus of a video data, in which even from video data in a fade-in or fade-out state, coded video data which does not cause a deterioration of a picture quality upon decoding of said video data can be obtained. When the image based on the video data is in the fade-in or fade-out state and many outline components are included in the image, a motion vector is detected from the luminance adjusted video data obtained by adjusting the luminance of the video data. When the number of outline components included in the image is small, the motion vector is directly detected from the video data and the video data is encoded by a motion compensation prediction according to the motion vector.
Claims6
A high efficiency video data coding apparatus for obtaining encoded video data by encoding original video data at high efficiency, comprising:
- luminance adjusting means for obtaining luminance adjusted video data by adjusting a luminance of said original video data;
- motion vector detecting means for detecting a motion vector from said luminance adjusted video data when an image based on said original video data is in a fade-in or fade-out state and many outline components are included in said image and detecting said motion vector from said original video data when the number of said outline components in said image is small;
- and
- an encoder for encoding said original video data by a motion compensation prediction according to said motion vector, thereby obtaining said encoded video data.
A high efficiency coding method of a video data for encoding original video data at high efficiency by using a motion compensation prediction according to a motion vector, comprising the steps of:
- detecting said motion vector from luminance adjusted video data obtained by adjusting a luminance of said original video data when an image based on said original video data is in a fade-in or fade-out state and many outline components are included in said image;
- and
- detecting said motion vector from said original video data when the number of said outline components included in said image is small.
Dependencies are inferred from the claim text.