US 8,559,517 B2Granted

Image processing apparatus and image display apparatus provided with the same

AssigneeHitachi Consumer Electronics Co., Ltd.

InventorsMasahiro Ogino, Mitsuo Nakajima

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Abstract

A picture signal processing apparatus includes a motion vector detecting unit for detecting information as to a motion vector of a picture from frames contained in an input picture signal; an interpolation frame producing unit for producing an interpolation frame by employing the motion vector; and a frame stream producing unit for producing a picture signal of a new frame stream by combining the interpolation frame produced with the frames of the input picture signal so as to output the produced picture signal of the new frame stream. When the picture signal processing apparatus performs a converting operation in such a manner that interpolation frames are continued between two frames of the input picture signal, at least one interpolation frame among the interpolation frames is formed as such an interpolation frame formed without employing the motion vector (namely, not depending upon motion of picture).

Claims2

Dependent claims

A picture signal processing apparatus comprising:

a motion vector detecting unit for detecting a first motion vector information pixel by pixel from a plurality of frames contained in an input picture signal;
an interpolation frame producing unit for producing an interpolation frame, which is configured to execute a plurality of interpolation frame producing processes including a first interpolation frame producing process based on the first motion vector information, and a second interpolation frame producing process based on a second motion vector information which is calculated from a histogram of the first motion vector information for a plurality of pixels in a frame;
and
a frame stream producing unit for producing a picture signal of a new frame stream including an interpolation frame produced by the first interpolation frame producing process, an interpolation frame produced by the second interpolation frame producing process, and the frames of said input picture signal;
wherein:
said frame stream producing unit keeps two or more interpolation frames produced by said first interpolation frame producing process not continued in a temporal manner in said new frame stream producing process;
wherein:
said interpolation frame producing unit changes said interpolation frame producing process based on whether the format of said input picture signal is a non-pull down format or a 2-to-3 pull down format.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/004,959Filed 21 Dec 2007
Priority: JP 2006-35369328 Dec 2006
Published: US 2008/0170161 A117 Jul 2008
Granted: 15 Oct 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

H04N 7/014
Involving interpolation processes: involving the use of motion vectors
G06T 3/4007
Scaling of whole images or parts thereof, e.g. expanding or contracting: based on interpolation, e.g. bilinear interpolation
H04N 5/144
Picture signal circuitry for video frequency region: movement detection
H04N 7/0112
Conversion of standards , e.g. involving analogue television standards or digital television standards processed at pixel level: one of the…