Title:
MOTION VECTOR DETECTOR
Document Type and Number:
Japanese Patent JP3628776
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To calculate a motion vector by inputting a band signal.
SOLUTION: A hierarchical image restoration part 21-i restores an image by inputting a wavelet conversion signal s11-i of a preceding frame and an output signal s21-(i-1) from a hierarchical image restoration part 21-(i-1) on the preceding stage (a wavelet conversion signal in the case of i=0) and outputs that restored image s21-i to a hierarchical image restoration part 21-(i+1) and a motion vector estimation part 23-i on the following stages. The motion vector estimation part 23-i performs block matching for each block of N×M picture elements, finds a motion vector s23-i and outputs it to a motion vector estimation part 23-(i+1) on the next stage. A motion vector s23-n is outputted from a motion vector estimation part 23-n on the final stage.
Inventors:
Kanamaru Toshifumi
Application Number:
JP27795695A
Publication Date:
March 16, 2005
Filing Date:
October 25, 1995
Export Citation:
Assignee:
Oki Electric Industry Co., Ltd.
International Classes:
G06T7/20; H04N19/105; H04N11/04; H04N19/137; H04N19/139; H04N19/176; H04N19/196; H04N19/42; H04N19/46; H04N19/50; H04N19/51; H04N19/53; H04N19/557; H04N19/59; H04N19/635; H04N19/70; H04N19/80; (IPC1-7): H04N7/32
Domestic Patent References:
| JP4177992A | ||||
| JP9098434A | ||||
| JP9121356A |
Other References:
富永 英義、小松 尚久、宮下 壮史、花村 剛,階層画素情報を用いた動画像における動き量検出方式,電子情報通信学会論文誌,日本,1989年 3月,Vol.J72-D-II、No.3,p.395-403
金丸 利文、小川 吉彦、白川 智昭、北島 秀夫,フレーム内平均ブロックサイズを一定にする階層的可変ブロックサイズ動き検出法,電子情報通信学会論文誌,日本,1994年10月,Vol.J77-D-II、No.10,p.2036-2045
金丸 利文、小川 吉彦、白川 智昭、北島 秀夫,フレーム内平均ブロックサイズを一定にする階層的可変ブロックサイズ動き検出法,電子情報通信学会論文誌,日本,1994年10月,Vol.J77-D-II、No.10,p.2036-2045
Attorney, Agent or Firm:
Kakimoto Yasunari