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:
Apr. 11, 2000
Filed:
Oct. 27, 1997
Seok-Won Han, Seoul, KR;
Daewoo Electronics Co., Ltd., , KR;
Abstract
In a mode coding method in encoding a binary alpha block (BAB) within a current frame based on the current frame and a previous frame including a plurality of BAB's, the BAB within the current frame is sub-sampled to generate a sample block and then a reconstructed BAB is reconstructed based on the sample block. In an intra mode, after evaluating the difference between the reconstructed BAB and the BAB, if there is no difference therebetween, a first mode signal is generated and if otherwise, a second mode signal is generated and at the same time a second error data block representing the difference is generated. In an inter mode, besides performing the process in the intra mode described above, a BAB most similar to the BAB within the current frame among the BAB's within the previous frame is detected as a predicted BAB and then the difference between the BAB and the predicted BAB is evaluated. And if there is no difference therebetween, a third mode signal is generated and if otherwise, a fourth mode signal is generated and at the same time a fourth error data block representing the difference is generated. If two or more mode signals among the first to fourth signals are generated, one mode signal among them is selected as a selected mode signal according to a predetermined selection rule.