Title:
動きベクトル検出装置及び方法、及びその動きベクトル検出装置を利用可能な画像符号化装置
Document Type and Number:
Japanese Patent JP4338654
Kind Code:
B2
Abstract:
The present invention provides a technique for reducing a period of time required for detection of a motion vector. With a method for detecting a motion vector between an input image and a reference image used for a reference of the input image, first, a two-dimensional search region having a predetermined pattern is determined, and matching is computed between a coding target block in the input image and multiple blocks represented by multiple search points included in the search region in parallel. In a case wherein the evaluated computation results exhibit optimum matching results, the motion vector is determined based upon the computation results. In a case wherein the optimum solution has not been obtained, the search region for the next matching is determined based upon the evaluation results, and search is repeated.
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Inventors:
Mitsuru Suzuki
Shigeyuki Okada
Hideki Yamauchi
Shigeyuki Okada
Hideki Yamauchi
Application Number:
JP2005022103A
Publication Date:
October 07, 2009
Filing Date:
January 28, 2005
Export Citation:
Assignee:
Sanyo Electric Co., Ltd.
International Classes:
H04N19/50; H04N7/12; H04N19/105; H04N19/134; H04N19/176; H04N19/189; H04N19/196; H04N19/436; H04N19/51; H04N19/56; H04N5/14
Domestic Patent References:
| JP63244985A | ||||
| JP2003087799A | ||||
| JP5328333A | ||||
| JP11252571A | ||||
| JP11308617A | ||||
| JP2005278156A |
Other References:
中西龍太, 小林和淑, 小野寺秀俊,カメラの動きを用いた動き補償の検討,第14回 回路とシステム(軽井沢)ワークショップ 論文集,日本,電子情報通信学会 システムと信号処理サブソサイエティ 電子情報通信学会 非線形問題研究専門委員会,2001年 4月23日,525-530
Attorney, Agent or Firm:
Sakaki Morishita