US 8,275,036 B2 · Moving picture encoding device, moving picture decoding device, moving picture encoding method, moving picture decoding method, program, and computer readable recording medium storing program

Abstract

An object of the present invention is to express a predicted picture signal with light overheads, and to provide motion compensation of different pixel accuracy. A moving picture encoding device 20 according to the present invention includes a motion vector detection means 32 for detecting a motion vector of a predetermined area to be encoded in a frame picture, a prediction means 33c for predicting the motion vector of the predetermined area to be encoded by using an encoded motion vector of a predetermined area in the frame picture, a determination means 33d for determining whether or not the motion vector detected by the motion vector detection means 32 is a predetermined motion vector set in accordance with the motion vector predicted by the prediction means 33c, and a switching means 33e for switching a method of calculating a motion compensation value of the predetermined area to be encoded depending on whether or not the motion vector detected by the motion vector detection means 32 is the predetermined motion vector.

Claims28

Dependent claims

A moving picture encoding device for encoding a moving picture constituted of a time sequence of frame pictures by motion compensation, the device comprising:

a reference picture generation section configured to generate a plurality of different reference pictures by executing a plurality of different picture processing, which includes executing filter processing with a filter that uses a plurality of different pass bands, on a single reference frame picture;
a motion compensation section configured to calculate a motion compensation value for a predetermined area to be encoded by using a generated reference picture;
and
a transmission section configured to transmit a combination of information regarding the reference picture used for calculating the motion compensation value and information indicating the motion compensation value,
wherein the information regarding the reference picture is a combination of a reference frame number of the single reference frame picture and information indicating the picture processing which identifies the filter.

2 more elements

A moving picture decoding device for decoding a moving picture constituted of a time sequence of frame pictures by motion compensation, the device comprising:

a reference picture generation section configured to generate a plurality of different reference pictures by executing a plurality of different picture processing, which includes executing filter processing with a filter that uses a plurality of different pass bands, on a single reference frame picture;
a decoding section configured to decode information regarding a reference picture used for calculating a motion compensation value in a motion picture encoding device;
and
a motion compensation section configured to calculate a motion compensation value for a predetermined area to be decoded, by using a generated reference picture specified by the information regarding the reference picture,
wherein the information regarding the reference picture is a combination of a reference frame number of the single reference frame picture and information indicating the picture processing, which identifies the filter.

2 more elements

A method for encoding a moving picture constituted of a time sequence of frame pictures by motion compensation, comprising:

generating, at an encoding apparatus, a plurality of different reference pictures by executing a plurality of different picture processing, which includes executing filter processing with a filter that uses a plurality of different pass bands, on a single reference frame picture;
calculating, at the encoding apparatus, a motion compensation value for a predetermined area to be encoded by using a generated reference picture;
and
transmitting, at the encoding apparatus, a combination of information regarding the reference picture used for calculating the motion compensation value and information indicating the motion compensation value,
wherein the information regarding the reference picture is a combination of a reference frame number of the single reference frame picture and information indicating the picture processing that identifies the filter.

2 more elements

A method for decoding a moving picture constituted of a time sequence of frame pictures by motion compensation, comprising:

generating, at a decoding apparatus, a plurality of different reference pictures by executing a plurality of different picture processing, which includes executing filter processing with a filter that uses aplurality of different pass bands, on a single reference frame picture;
decoding, at the decoding apparatus, information regarding a reference picture used for calculating a motion compensation value in a motion picture decoding device;
and
calculating, at the decoding apparatus, a motion compensation value for a predetermined area to be decoded, by using a generated reference picture specified by the information regarding the reference picture,
wherein the information regarding the reference picture is a combination of a reference frame number of the single reference frame picture and information indicating the picture processing, which identifies the filter.

2 more elements

Dependencies are inferred from the claim text.

Moving picture encoding device, moving picture decoding device, moving picture encoding method, moving picture decoding method, program, and computer readable recording medium storing program

Life of this patent

Moving picture encoding device, moving picture decoding device, moving picture encoding method, moving picture decoding method, program, and computer readable recording medium storing program

Life of this patent

Abstract

Claims28