Panasonic Corporation

Panasonic Intellectual Property Corporation of America

Matsushita Electric Industrial Co., Ltd.

Godo Kaisha IP Bridge 1

Tagivan Ii LLC

Konica Minolta, Inc.

Other

Sun Patent Trust

Panasonic Intellectual Property

Panasonac Corporation

Toyota Jidosha Kabushiki Kaisha

Inoac Corporation

Satoshi Kondo

Shinya Kadono Kadono

Kiyofumi Abe

Makoto Hagai

Tadamasa Toma

Hisao Sasai

Chong Soon Lim

Sheng Mei Shen

Teck Wee Foo

Hideki Fukuda

Yoshinori Matsui

Tetsuya Itani

Takahiro Nishi

Toshiyasu Sugio

Masayasu Iguchi

Tomoyuki Okada

Wataru Ikeda

Thomas Wedi

Kazuhiko Nakamura

Chikara Ohto

Yoshinari Takemura

Nobuhiko Muramoto

Norihiro Mitsukawa

Steffen Wittmann

Kenji Muraki

Hiroshi Yahata

Masaru Takagi

Kazuya Takagi

Hiroshi Saito

Tomoko Tanaka

Kyoko Matsui

Shiro Iwasaki

Kojiro Kawasaki

Jiro Yamada

Haruo Yamashita

Yuji Takagi

Katsuhiro Kanamori

Takeshi Ito

Hiromu Kitaura

Hidetoshi Takeda

Yasushi Ayaki

Nobutaka Mitsuda

Tomotsugu Koyama

Ryoji Yamaguchi

Keiichi Kawashima

Masaaki Kondo

Hiroyuki Uenaka

Akiyoshi Maeda

Hiroyuki Suzuki

Shigeru Furumiya

Kenji Koishi

Takashi Ogura

Yusuke Monobe

Toyoji Gushima

Masahiro Honjo

Yasuhiro Kuwahara

Hiroyuki Iitsuka

Aki Yoneda

Kenichi Ogawa

Jun Ikeda

Toshiyuki Shimada

Ko Mizuno

Martin Schlockermann

Yoshiharu Kobayashi

Hiroki Sugimoto

Hideaki Shibata

Hiroshi Chatani

Madoka Yonekura

Takafumi Aoki

Pei-Lin Hou

Kenji Takita

Miki Haseyama

Chih-Jung Lin

Hiroki Inagaki

Yoshitaka Mitsui

Eiji Iwasaki

Hiroshi Taniuchi

Toshikazu Kodo

Tomoko Yasunari

Hideya Takahashi

Toru Takahashi

Akira Muto

Masao Kitagawa

Yoshitaka Mitui

Chih Jung Lin

Norihiro Kakukou

Mutsumi Nishida

Katsuhiko Yoshida

Pei Lin Hou

A signal separation unit () separates an input picture made up of component pictures of RGB, each of which has an equal number of pixels as the input picture, into three component pictures, and outputs the three component pictures. Each of coding units (to) codes one of the component pictures into an intra-picture prediction coded picture or an inter-picture prediction coded picture, and outputs a bit stream corresponding to the component picture. A bit stream multiplexing unit () multiplexes three bit streams outputted from the three coding units into one bit stream, and outputs the bit stream. Each of the coding units (), () and () determines a prediction method for the component picture at the time of coding.

Moving picture coding apparatus, moving picture decoding apparatus, and stream data

A motion vector derivation unit includes a comparison unit for comparing a parameter TRfor a reference vector with a predetermined value to determine whether it exceeds the predetermined value or not; a switching unit for switching selection between the maximum value of a pre-stored parameter TR and the parameter TRaccording to the comparison result by the comparison unit; a multiplier parameter table (for multipliers); and a multiplier parameter table (for divisors) for associating the parameter TRwith a value approximate to the inverse value (1/TR) of this parameter TR

Motion vector derivation method, moving picture coding method and moving picture decoding method

In a picture coding method for generating a coded signal corresponding to each picture by coding a plurality of coded signals, a switching picture which is capable of switching a plurality of coded signals and subsequent pictures of the switching picture can refer to only a group of pictures of the same time in the coded signals. More specifically, the case where picture numbers of an adjacent picture of an S picture and the S picture are not continuous is not considered as an error.

Picture coding method and picture decoding method

A motion vector derivation unit includes a comparison unit for comparing a parameter TR1 for a reference vector with a predetermined value to determine whether it exceeds the predetermined value or not; a switching unit for switching selection between the maximum value of a pre-stored parameter TR and the parameter TR1 according to the comparison result by the comparison unit; a multiplier parameter table (for multipliers); and a multiplier parameter table (for divisors) for associating the parameter TR1 with a value approximate to the inverse value (1/TR1) of this parameter TR1.

A moving picture coding apparatus includes a motion compensation coding unit for deciding a coding mode for coding a current block to be coded and for generating predictive image data based on the coding mode, and includes a direct mode enable/disable judgment unit for judging whether or not scaling processing can be performed when the coding mode decided by the motion compensation coding unit is a temporal direct mode. When it is judged that the scaling processing cannot be performed, the motion compensation coding unit performs motion compensation either by using another coding mode or without the scaling processing.

Moving picture decoding method for decoding a current block in a temporal direct mode

The present invention is a variable length coding method for coding coefficients in each block which are obtained by performing frequency transformation on picture data of a moving picture per block having a predetermined size, and comprises: a coefficient scanning step of scanning the coefficients in the block in a predetermined order; and a coding step of coding the coefficients scanned in the coefficient scanning step into variable length codes in a predetermined order by switching a plurality of tables to be used for coding. Here, a direction of switching between the tables may be one-directional. Also, the coding may be non-arithmetic coding.

Variable length coding method and variable length decoding method

A moving picture coding apparatus includes a counter unit which counts the number of pictures following an intra coded picture; and a motion estimation unit which compares respectively only reference pictures which are the intra coded picture or the following pictures, selected from among a reference picture Ref, a reference picture Refand a reference picture Refstored in memories, with a picture signal, and determines the reference picture whose inter picture differential value is smallest.

Moving picture coding method and moving picture decoding method

When a block (MB) of which motion vector is referred to in the direct mode contains a plurality of motion vectors, 2 motion vectors MVand MV, which are used for inter picture prediction of a current picture (P) to be coded, are determined by scaling a value obtained from averaging the plurality of motion vectors or selecting one of the plurality of the motion vectors.

Motion vector calculation method

A moving picture coding method for coding a picture with switching between frame coding and field coding adaptively on a block-by-block basis includes: determining the maximum number of reference indices for field coding for specifying fields which are to be referred to at the time of field coding, using the maximum number of reference indices for frame coding for specifying frames which are to be referred to at the time of frame coding; and assigning to fields the reference indices for field coding for specifying fields which are to be referred to at the time of field coding, within a range of the determined maximum number thereof, using the reference indices for frame coding for specifying frames which are to be referred to at the time of frame coding.

Field/frame adaptive decoding with field/frame index

When a block (MB) of which motion vector is referred to in the direct mode contains a plurality of motion vectors,motion vectors MVand MV, which are used for inter picture prediction of a current picture (P) to be coded, are determined by scaling a value obtained from averaging the plurality of motion vectors or selecting one of the plurality of the motion vectors.

Growing community of inventors

Kyoto, Japan

Satoshi Kondo