Title:
IMAGE DISPLAY DEVICE AND METHOD, AND IMAGE PROCESSING DEVICE AND METHOD
Document Type and Number:
WIPO Patent Application WO/2007/105433
Kind Code:
A1
Abstract:
An image display device having a rate change (FRC) unit of motion compensation
type and displaying an image including a high-speed region and a low-speed region
and having a quality prevented from deteriorating. An FRC unit has a motion vector
detecting section (11e) and an interpolation frame creating unit (12b). The
motion vector detecting section (11e) includes first region detecting means
(112e1) for detecting a first region (high-speed region) involving
the amount of motion equal to or more than a first predetermined amount from an
inputted image signal, second region detecting means (112e2) for
detecting a second region (low-speed region involving the amount of motion equal
to or less than a second predetermined amount from the inputted image signal,
and third region detecting means (113e) for detecting a still region according
to the difference between the frames of the inputted image signal. An interpolation
frame creating section (12b) performs motion compensation interpolation using
a motion vector for the still region in the first region (background) and zero-vector
interpolation for the still region in the second region (foreground).
Inventors:
HANAOKA TOSHIHARU
YOSHIDA YASUHIRO
UENO MASAFUMI
FURUKAWA HIROYUKI
YAMAMOTO KENICHIROH
YOSHII TAKASHI
YOSHIDA YASUHIRO
UENO MASAFUMI
FURUKAWA HIROYUKI
YAMAMOTO KENICHIROH
YOSHII TAKASHI
Application Number:
PCT/JP2007/053162
Publication Date:
September 20, 2007
Filing Date:
February 21, 2007
Export Citation:
Assignee:
SHARP KK (JP)
HANAOKA TOSHIHARU
YOSHIDA YASUHIRO
UENO MASAFUMI
FURUKAWA HIROYUKI
YAMAMOTO KENICHIROH
YOSHII TAKASHI
HANAOKA TOSHIHARU
YOSHIDA YASUHIRO
UENO MASAFUMI
FURUKAWA HIROYUKI
YAMAMOTO KENICHIROH
YOSHII TAKASHI
International Classes:
H04N7/01; G09G3/20; G09G3/36; G09G5/00; G09G5/391; H04N5/66
Foreign References:
| JPH06217263A | 1994-08-05 | |||
| JPH08149421A | 1996-06-07 | |||
| JP2005051460A | 2005-02-24 | |||
| JP3295437B2 | 2002-06-24 | |||
| JPH06178285A | 1994-06-24 |
Other References:
NOJIRI Y. ET AL.: "HDTV Hoshiki Henkan Sochi", THE JOURNAL OF THE INSTITUTE OF TELEVISION ENGINEERS OF JAPAN, vol. 48, no. 1, 1994, pages 84 - 94, XP003017090
See also references of EP 1990997A4
See also references of EP 1990997A4
Attorney, Agent or Firm:
TAKANO, Akichika (9th Floor Salute Bldg., 72 Yoshida-cho, Naka-ku, Yokohama-sh, Kanagawa 41, JP)
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