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.
Patent No.:
Date of Patent:
May. 22, 2012
Filed:
Oct. 31, 2005
SE Yoon Jeong, Daejeon, KR;
Kyu Heon Kim, Daejeon, KR;
Jin Woo Hong, Daejeon, KR;
Gwang Hoon Park, Sungnam, KR;
Min Woo Park, Kyunggi-do, KR;
Se Yoon Jeong, Daejeon, KR;
Kyu Heon Kim, Daejeon, KR;
Jin Woo Hong, Daejeon, KR;
Gwang Hoon Park, Sungnam, KR;
Min Woo Park, Kyunggi-do, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Kyunghee University, Kyunggi-do, KR;
Abstract
Provided is a method for performing hierarchical B picture-based coding on a video sequence using the structure of adaptively divided group of pictures (GOP). The method includes the steps of, for each predefined 2frame-sized group of pictures (GOP) of the video sequence, (a) encoding the 2frame-sized GOP of the video sequence based on each of the different GOP sizes from the maximum size, 2, to the minimum size, 2(M is an integer between 1 and N) and obtaining different values between frames reconstructed after the encoding is performed and frames after the hierarchical B-picture prediction is performed, based on each of the different GOP sizes; (b) selecting at least one sub-GOP based on the difference values obtained by encoding the 2frame-sized GOP of the video sequence based on each of the different GOP sizes; and (c) generating a bitstream by encoding the 2-frame-sized GOP based on the at least one selected sub-GOP. Thereby, the hierarchical B picture-based video coding is performed by adaptively dividing the GOP size based on performance and thereby obtains high coding efficiency.