发明授权
US08509308B2 Wavelet transform apparatus and method, scalable video coding apparatus and method employing the same, and scalable video decoding apparatus and method thereof 有权
小波变换装置及方法,可伸缩视频编码装置及采用该方法的方法,以及可伸缩视频解码装置及其方法

  • 专利标题: Wavelet transform apparatus and method, scalable video coding apparatus and method employing the same, and scalable video decoding apparatus and method thereof
  • 专利标题(中): 小波变换装置及方法,可伸缩视频编码装置及采用该方法的方法,以及可伸缩视频解码装置及其方法
  • 申请号: US11662016
    申请日: 2005-09-16
  • 公开(公告)号: US08509308B2
    公开(公告)日: 2013-08-13
  • 发明人: Joo-Hee KimHye-Yun KimDoo-Hyun Kim
  • 申请人: Joo-Hee KimHye-Yun KimDoo-Hyun Kim
  • 申请人地址: KR Suwon-Si
  • 专利权人: Samsung Electronics Co., Ltd.
  • 当前专利权人: Samsung Electronics Co., Ltd.
  • 当前专利权人地址: KR Suwon-Si
  • 代理机构: Staas & Halsey LLP
  • 国际申请: PCT/KR2005/003104 WO 20050916
  • 国际公布: WO2006/031093 WO 20060323
  • 主分类号: H04N7/12
  • IPC分类号: H04N7/12
Wavelet transform apparatus and method, scalable video coding apparatus and method employing the same, and scalable video decoding apparatus and method thereof
摘要:
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.
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