VIDEO CODING
First Claim
1. A method of video source encoding to form a source encoded bit-stream representative of a sequence of video frames, the method comprising:
- forming a first source encoded bit-stream portion representative of a first video frame, the first source encoded bit-stream portion including picture header data for the first video frame and source encoded picture data for the first video frame;
forming a second source encoded bit-stream portion, the second source encoded bit-stream portion including a repeat of at least a part of the picture header data for the first video frame; and
providing the second source encoded bit-stream portion in the source encoded bit-stream subsequent to the first source encoded bit-stream portion.
2 Assignments
0 Petitions
Accused Products
Abstract
A method of video encoding including receiving a video signal to be coded; coding data representing a frame of said video signal; and repeating part, but not all, of the data. The repeated part including the picture header for the frame. A method of decoding an encoded video signal including receiving coded data representing frames of a video signal; examining the coded data to detect header data and picture data; when an error in the picture header is detected, storing the picture data in a temporary picture data store, detecting a repeat of the header data; and decoding the stored picture data using the repeated header data
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Citations
27 Claims
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1. A method of video source encoding to form a source encoded bit-stream representative of a sequence of video frames, the method comprising:
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forming a first source encoded bit-stream portion representative of a first video frame, the first source encoded bit-stream portion including picture header data for the first video frame and source encoded picture data for the first video frame;
forming a second source encoded bit-stream portion, the second source encoded bit-stream portion including a repeat of at least a part of the picture header data for the first video frame; and
providing the second source encoded bit-stream portion in the source encoded bit-stream subsequent to the first source encoded bit-stream portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. Video source encoding apparatus for forming a source encoded bit-stream representative of a sequence of video frames, the video source encoding apparatus comprising circuitry arranged to:
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form a first source encoded bit-stream portion representative of a first video frame, the first source encoded bit-stream portion including picture header data for the first video frame and source encoded picture data for the first video frame;
form a second source encoded bit-stream portion, the second source encoded bit-stream portion including a repeat of at least a part of the picture header data for the first frame; and
provide the second source encoded bit-stream portion in the source encoded bit-stream subsequent to the first source encoded bit-stream portion. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 20, 21, 22, 23, 24, 25, 26, 27)
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19. A data signal comprising a source encoded bit-stream representative of a sequence of video frames, the source encoded bit-stream comprising:
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a first source encoded bit-stream portion representative of a first video frame of the sequence of video frames, the first source encoded bit-stream portion including picture header data for the first video frame and source encoded picture data for the first video frame; and
a second source encoded bit-stream portion, the second source encoded bit-stream portion including a repeat of at least a part of the picture header data for the first video frame, the second source encoded bit-stream portion provided in the source encoded bit-stream subsequent to the first source encoded bit-stream portion.
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Specification