Video encoding/decoding method and apparatus, and recording medium in which bit stream is stored
US-2024357109-A1 · Oct 24, 2024 · US
Video coding and decoding devices and methods and systems thereof
US9106915B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9106915-B2 |
| Application number | US-75403507-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 25, 2007 |
| Priority date | May 25, 2006 |
| Publication date | Aug 11, 2015 |
| Grant date | Aug 11, 2015 |
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- Title
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Abstract
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Disclosed are Video coding and decoding devices, methods and system thereof, in which the video coding device comprises a video coder for performing video coding on a frame including a plurality of macroblocks by a predefined coding technique so as to output a normal coded stream and for outputting a prediction error value for each of the macroblocks obtained through inter-frame movement prediction, a grading means for grading the macroblocks based on the prediction error values and allocating redundant bit to macroblocks at respective grades, a redundant coder for generating redundant information indicated by corresponding redundant bit for each of the graded macroblock, and a merger means for merging said normal coded stream and said redundant information to generate a final coded stream. With the configuration of the present invention, bit rate will not be increased significantly with content transmission quality being guaranteed.
First claim
Opening claim text (preview).
What is claimed is: 1. A coding device, comprising: a video coder configured to perform video coding on a frame including a plurality of macroblocks by a predefined coding technique so as to output a normal coded stream and output a prediction error value for each of said macroblocks obtained through inter-frame movement prediction, a grading unit configured to grade said macroblocks based on said prediction error values and allocate different number of redundant bits to said ma…
Assignees
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Classifications
- H04N19/174Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9106915B2 cover?
- Disclosed are Video coding and decoding devices, methods and system thereof, in which the video coding device comprises a video coder for performing video coding on a frame including a plurality of macroblocks by a predefined coding technique so as to output a normal coded stream and for outputting a prediction error value for each of the macroblocks obtained through inter-frame movement predic…
- Who is the assignee on this patent?
- Li Dong, Lenovo Beijing Ltd
- What technology area does this patent fall under?
- Primary CPC classification H04N19/174. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 11 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).