Method and apparatus for reduction of compression noise in compressed video images
AssigneeSamsung Electronics Co., Ltd.
InventorsVictor Ha, Yeong-Taeg Kim
Life of this patent
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Abstract
A video processing method and system that obtains, transmits, and processes digital video compression rate information between a video receiver such as a Set-top-box (STB) and a display device such as a TV set. The compression rate information is obtained by the video receiver and delivered to a compression noise reducer in the display device. The compression rate information provides an indication of how much compression noise might be embedded into an incoming compressed video signal and thus allows the compression noise reducer to reduce compression noise from the incoming video signal more effectively and efficiently.
Claims58
A digital video receiver for receiving video information representing original video signals compressed at a compression rate, comprising:
- an information generator that determines information about said compression rate based on the received video information;
- and
- an information transmitter that communicates the compression rate information to a compression noise reducer.
A method of digital video processing, comprising the steps of:
- receiving video information representing original video signals compressed at a compression rate;
- determining information about said compression rate based on the received video information;
- and
- communicating the compression rate information to a post-processor.
A digital video decoding system that receives coded compressed digital video information, comprising:
- a decoder that decodes the received coded digital video;
- an information generator that obtains information about the compression rate of the incoming digital video;
- an encoder that incorporates the compression rate information in a communication protocol;
- an information transmitter that communicates the coded compression rate information to post-processing devices.
A digital video processing system that receives a video sequence from an external source, the video sequence including information about compression rate of the video sequence, comprising:
- an extractor that extracts said information about the compression rate from the video sequence;
- a noise reducer that processes the video sequence by essentially removing compression noise from the video sequence using the compression rate information;
- and
- an output device that outputs the processed video sequence for further processing.
A digital video decoding system comprising:
- a decoder that receives an encoded and compressed video sequence from an external source, and decodes the video sequence;
- an extractor that extracts the compression rate of the vide sequence using the video sequence;
- a noise reducer that performs compression noise reduction on the video sequence based on the compression rate information.
An encoding device for a video processing system, comprising:
- an encoder that incorporates information about the compression rate of a video sequence into the video sequence.
The device of claim 47 wherein the encoder embeds the compression rate information into each frame of the video.
A method of digital video processing, comprising the steps of:
- receiving video information representing original video signals compressed at a compression rate;
- determining information about said compression rate based on the received video information.
An integrated video processing device, comprising:
- a video decoder that decodes an incoming encoded video sequence;
- an information generator that determines the compression rate of the video sequence;
- a noise reducer that reduces compression noise in the video sequence based on the compression rate information.
The device of claim 54 wherein the noise reducer adjusts the level of compression noise reduction as a function of the compression rate information.
Dependencies are inferred from the claim text.