Samsung Electronics Co., Ltd.

Joo-Hee Kim

Doo-hyun Kim

Hye-Yun Kim

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.

Wavelet transform apparatus and method, scalable video coding apparatus and method employing the same, and scalable video decoding apparatus and method thereof

Growing community of inventors

Seongnam-si, South Korea

Joo-Hee Kim