The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 30, 2008

Filed:

Feb. 10, 2003
Applicants:

Sanghoon Sull, Seoul, KR;

Sungjoo Suh, Busan, KR;

Jung Rim Kim, Seoul, KR;

Seong Soo Chun, Songnam, KR;

Inventors:

Sanghoon Sull, Seoul, KR;

Sungjoo Suh, Busan, KR;

Jung Rim Kim, Seoul, KR;

Seong Soo Chun, Songnam, KR;

Assignee:

VMark, Inc., Palo Alto, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/36 (2006.01); H04N 7/18 (2006.01); G06K 9/46 (2006.01);
U.S. Cl.
CPC ...
Abstract

Methods for fast generating spatially reduced-size images directly from compressed video streams supporting the coding of interlaced frames through transform coding and motion compensation. A sequence of reduced-size images are rapidly generated from compressed video streams by efficiently combining the steps of inverse transform, down-sampling and construction of each field image. The construction of reduced-size field images also allows the efficient motion compensation. The fast generation of reduced-size images is applicable to a variety of low-cost applications such as video browsing, video summary, fast thumbnail playback and video indexing.


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