IMAGE PROCESSING APPARATUS AND METHOD, AND IMAGE PICKUP APPARATUS

Title:

IMAGE PROCESSING APPARATUS AND METHOD, AND IMAGE PICKUP APPARATUS

Document Type and Number:

WIPO Patent Application WO/2003/001456

Kind Code:

A1

Abstract:

It is possible to detect a mixture ratio indicating a mixture state of a plurality of objects such as a background image and an image of a moving object. A normal equation addition block (541) extracts mixed pixel data in accordance with a motion and extracts background pixel data in accordance with the mixed pixel data, thereby generating a plurality of relationship equations for a target pixel. A normal equation calculation block (542) detects a mixture ratio indicating a mixture state of the object in accordance with the relationship equation. The normal equation addition block (541) generates a plurality of relationship equations by a first approximation assuming that the foreground object component changes approximately rectilinearly and by a second approximation assuming that the mixture ratio changes approximately rectilinearly. The present invention can be applied to a signal processing apparatus which processes an image.

Inventors:

KONDO TETSUJIRO (JP)
FUJIWARA NAOKI (JP)
ISHIBASHI JUNICHI (JP)
SAWAO TAKASHI (JP)
NAGANO TAKAHIRO (JP)
MIYAKE TORU (JP)
WADA SEIJI (JP)

Application Number:

PCT/JP2002/006339

Publication Date:

January 03, 2003

Filing Date:

June 25, 2002

Export Citation:

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Assignee:

SONY CORP (JP)
KONDO TETSUJIRO (JP)
FUJIWARA NAOKI (JP)
ISHIBASHI JUNICHI (JP)
SAWAO TAKASHI (JP)
NAGANO TAKAHIRO (JP)
MIYAKE TORU (JP)
WADA SEIJI (JP)

International Classes:

G06T5/00; G06T7/20; (IPC1-7): G06T7/20; G06T1/00; G06T3/00; H04N5/232; H04N5/262

Foreign References:

EP0933727A2	1999-08-04
JPH10164436A	1998-06-19
JPH07336688A	1995-12-22
JP2001250119A	2001-09-14
JP2002190015A	2002-07-05
JP2002190016A	2002-07-05
JP2002190028A	2002-07-05

Other References: