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:
Aug. 13, 2013
Filed:
Sep. 16, 2005
Joo-hee Kim, Seongnam-si, KR;
Hye-yun Kim, Yongin-si, KR;
Doo-hyun Kim, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
Provided are a lift-based wavelet transform apparatus and method, a scalable video coding apparatus and method using the same, and a scalable video decoding apparatus and method. The lifting-based wavelet transform apparatus includes: a prediction unit which performs bi-directional motion compensation on odd-indexed frames based on even-indexed frames and generates high-frequency frames using differential frames from which most of energy is removed; an update determination unit which, in the even-indexed frame, determines whether to update each target block at which a reference block indicated by a motion vector is placed; and an update unit which updates a target block of the even-indexed frame which is determined to be updated by adding the differential frame to each target sub-block included in the target block and generates low-frequency frames.