Compressed domain system and method for compression gains in encoded data
First Claim
Patent Images
1. A compressed domain compression apparatus for video, comprising:
- a partial decoder that partially decodes an encoded piece of video to generate a partially decoded piece of video data;
a least significant bit plane removal unit that removes at least one least significant bit plane from the partially decoded piece of video data to generate a modified partially decoded piece of video data; and
a partial encoder that encodes the modified partially decoded piece of video data to generate fully compressed video data that is more compressed than the encoded piece of video data.
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Abstract
A system and method for compressed domain compression are provided for improving compression gains in an encoded image, such as a Joint Photographic Experts Group (JPEG)-encoded images, or encoded video, such as Motion Joint Photographic Experts Group (Motion JPEG)-encoded video, without fully decoding and re-encoding the compressed images or video.
33 Citations
10 Claims
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1. A compressed domain compression apparatus for video, comprising:
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a partial decoder that partially decodes an encoded piece of video to generate a partially decoded piece of video data; a least significant bit plane removal unit that removes at least one least significant bit plane from the partially decoded piece of video data to generate a modified partially decoded piece of video data; and a partial encoder that encodes the modified partially decoded piece of video data to generate fully compressed video data that is more compressed than the encoded piece of video data. - View Dependent Claims (2, 3, 4, 5)
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6. A compressed domain compression method, comprising:
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partially decoding an encoded piece of video data to generate a partially decoded piece of video data; removing, using a least significant bit plane removal unit, at least one least significant bit plane from the partially decoded piece of video data to generate a modified partially decoded piece of video data; and encoding the modified partially decoded piece of video data to generate fully compressed video data that is more compressed than the encoded piece of video data. - View Dependent Claims (7, 8, 9, 10)
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Specification