Pattern detection module with region detection, video encoding system and method for use therewith

Patent metadata

Field	Value
Publication number	US-9313504-B2
Application number	US-25458608-A
Country	US
Kind code	B2
Filing date	Oct 20, 2008
Priority date	Jul 2, 2007
Publication date	Apr 12, 2016
Grant date	Apr 12, 2016

Abstract

A system for encoding a video stream into a processed video signal that includes at least one image, includes a pattern detection module for detecting a pattern of interest in the at least one image and identifying a region that contains the pattern of interest when the pattern of interest is detected, based on an analysis of the image in a plurality of domains. An encoder section, generates the processed video signal and wherein, when the pattern of interest is detected, a higher quality, such as a higher bit allocation or higher computational processing, is assigned to the region than to portions of the at least one image outside the region.

First claim

What is claimed is:

1. A method for encoding a video stream into a processed video signal, the video stream including at least one image, the method comprising:
generating, via a device, a plurality of region detection decisions in a corresponding plurality of domains including at least one transform domain containing transformed image data generated based on a transformation of the at least one image and at least one untransformed domain containing untransformed image data;
detecting, via a device, a detected region in the at least one image based on a comparison of the plurality of region detection decisions;
when the detected region is detected, assigning a higher quality to a portion of the image, based on the detected region.

2. The method of claim 1 wherein the step of assigning the higher quality includes generating a clean region based on the detected region and wherein the portion of the image is based on the clean region.

3. The method of claim 2 wherein generating the clean region includes a morphological operation.

4. The method of claim 2 wherein generating the clean region further includes expanding the clean region.

5. The method of claim 1 wherein the encoding includes transcoding the at least one image.

6. The method of claim 1 wherein the encoding includes transrating the at least one image.

Assignees

• Pan Feng
• Jiao Jingyun
• Liu Yang
• Vixs Systems Inc

Inventors

• Pan Feng
• Jiao Jingyun
• Liu Yang

Classifications

• H04N19/14

  Coding unit complexity, e.g. amount of activity or edge presence estimation (H04N19/146 takes precedence) · CPC title

• H04N19/40

  using video transcoding, i.e. partial or full decoding of a coded input stream followed by re-encoding of the decoded output stream · CPC title

• H04N19/17

  the unit being an image region, e.g. an object · CPC title

• H04N19/46

  Embedding additional information in the video signal during the compression process (H04N19/517, H04N19/68, H04N19/70 take precedence) · CPC title

• H04N19/115 Primary

  Selection of the code volume for a coding unit prior to coding · CPC title