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. 02, 2000
Filed:
Apr. 27, 1998
Sung-Ryul Cho, Seoul, KR;
Daewoo Electronics Co., Ltd., , KR;
Abstract
An apparatus, for use in a context-based arithmetic encoding of a binary shape signal, generates a bordered block having a border of width D around a target block based on the binary shape signal which includes a plurality of blocks of P.times.Q pixels having one of a larger and a smaller binary values, P and Q being positive integers, respectively, and the target block is one of the blocks of P.times.Q pixels. In order to produce the bordered block, the apparatus first calculates a weighted mean for each of the border pixels in the bordered block by using N number of neighboring pixels, N being a positive integer. Each of the weighted means is compared with the larger binary value to thereby assign either the larger or the smaller binary value to each of the border pixels. After the binary value to be assigned to each of the border pixels is determined, the apparatus constructs the bordered block based on the binary values assigned to the border pixels and the binary shape signal.