Ntt Docomo, Inc.

Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Matsushita Electrical Industrial Co., Ltd.

Minoru Etoh

Satoru Adachi

Sadaatsu Kato

Mitsuru Kobayashi

Thiow Keng Tan

Shunichi Sekiguchi

Choong Seng Boon

Hiroyuki Yamaguchi

Takao Yamaguchi

Kazuo Sugimoto

Koichi Emura

Akira Kinno

Koichi Hata

Osamu Iwasaki

Toshihiko Munetsugu

Hiroshi Arakawa

Junichi Sato

Takashi Suzuki

Yoshifumi Yonemoto

Daisaku Komiya

Takeshi Yoshimura

Toshiro Kawahara

Shoichi Araki

Tomoaki Itoh

Tatsuro Juri

Tsutomu Uenoyama

Hiroshi Inamura

Takeshi Ankei

Shouichi Araki

Akira Kamogawa

Tomoyuki Ohya

Motoharu Miyake

Takehiro Nakayama

Wataru Fujikawa

Takashi Yoshikawa

Kosuke Tsujino

Yoshikazu Akinaga

Masashi Morioka

Toshirou Kawahara

Yasuhiro Ogiri

Kouichi Hata

Takafumi Yamazoe

Takaaki Hayashi

Chong Seng Boon

A video processing system provided with video encoding apparatusand video decoding apparatus. The encoding apparatusoutputs a maximum delay time that is incurred by backward prediction, in addition to encoded data Dresulting from encoding of video data D. The decoding apparatuseffects input of the maximum delay time that is incurred by backward prediction, in addition to encoded data Dfrom the encoding apparatus. Then the decoding apparatusdecodes the encoded data Dwith reference to the input maximum delay time to generate motion video data D

Video encoding method, video decoding method, video encoding apparatus, video decoding apparatus, video encoding program, and video decoding program

A video processing systemis provided with video encoding deviceand video decoding device. The video encoding deviceimplements backward interframe prediction from a temporally subsequent frame and outputs information indicating that an option to eliminate use of a decoded image of the temporally subsequent frame was chosen. The video decoding deviceeliminates use of the decoded image of the frame on the basis of this information, in conjunction with input of the information for eliminating use of the decoded image of the temporally subsequent frame.

A video processing system is provided with video encoding apparatusand video decoding apparatus. The encoding apparatusoutputs a maximum delay time that is incurred by backward prediction, in addition to encoded data Dresulting from encoding of video data D. The decoding apparatuseffects input of the maximum delay time that is incurred by backward prediction, in addition to encoded data Dfrom the encoding apparatus. Then the decoding apparatusdecodes the encoded data Dwith reference to the input maximum delay time to generate motion video data D

A character recognition device includes image input unit that receives an image, character region detection unit that detects a character region in the image, character region separation unit that separates the character region on a character-by-character basis, character recognition unit that performs character-by-character recognition on the characters present in separated regions and outputs one or more character recognition result candidates for each character, first character string transition data creation unit that receives the candidates, calculates weights for transitions to the candidates and creates first character string transition data based on a set of the candidates and the weights, and WFST processing unit that sequentially performs state transitions based on the first character string transition data, accumulates weights in each state transition and calculates a cumulative weight for each state transition, and outputs one or more state transition results based on the cumulative weight.

Character recognition device, character recognition method, character recognition system, and character recognition program

A moving picture encoding device for encoding a moving picture constituted of a time sequence of frame pictures by motion compensation, the device including: a reference picture generation section configured to generate a reference picture subjected to predetermined picture processing from a reference frame picture, in accordance with an encoding condition of a predetermined area to be encoded; and a motion compensation section configured to calculate a motion compensation value for the predetermined area to be encoded, by using a generated reference picture subjected to the predetermined picture processing.

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

Image encoding apparatusaccording to the present invention is an image encoding apparatusfor dividing image signals into blocks, performing an orthogonal transform of each block, reading resultant orthogonal transform coefficients to obtain a coefficient string, and performing entropy coding, which has block selectorfor selecting a size of a block for the orthogonal transform, out of a plurality of blocks of different sizes; coefficient string dividerfor, when a block of a size larger than a minimum size is selected by block selector, dividing a coefficient string in the block into a plurality of coefficient strings of a length equal to that of a coefficient string in a block of the minimum size; and encoderfor performing entropy coding adapted to the coefficient string in the block of the minimum size. This substantializes the image encoding apparatus capable of achieving efficient entropy coding in the orthogonal transform of variable sizes.

Image encoding method, image decoding method, image encoding apparatus, image decoding apparatus, image encoding program, and image decoding program

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 deviceaccording to the present invention includes a motion vector detection meansfor detecting a motion vector of a predetermined area to be encoded in a frame picture, a prediction meansfor 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 meansfor determining whether or not the motion vector detected by the motion vector detection meansis a predetermined motion vector set in accordance with the motion vector predicted by the prediction means, and a switching meansfor 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 meansis the predetermined motion vector.

An image decoding method, apparatus and program for decoding coded picture data is disclosed. In the method, apparatus and program, the coded picture data is entropy-decoded to derive four transform coefficient strings each comprising entropy-decoded sixteen (16) transform coefficients. The four transform coefficient strings are combined into an 8&#xd7;8 block of entropy-decoded sixty four (64) transform coefficients by de-interleaving the four strings in such a manner as to select a lower frequency transform coefficient alternately from the four strings and arrange it in the 8&#xd7;8 block in an order of a low frequency to a high frequency. An inverse orthogonal transform is then performed on the 8&#xd7;8 block of the entropy-decoded sixty four (64) transform coefficients.

A variable-length encoder that feeds a Coded Block Pattern (CBP) as an input symbol to variable-length code output part. Coded symbol memory supplies CBPs in neighboring blocks as coding map table reference information to coding map table provider. Coding map table provider determines a coding map table used in coding of the CBP, based on these CBPs in the neighboring blocks, and provides a coding map table Hto variable-length code output part. Variable-length coding table provider feeds a variable-length coding table to variable-length code output part. Then the coding target CBP is subjected to variable-length coding, and the resultant is outputted as coded data. This allows information source coding of coding symbols to be performed efficiently according to the coding condition and the property of image.

Image encoding apparatus, image decoding apparatus, image encoding method, image decoding method, image encoding program, and image decoding program

A moving picture encoding device includes a motion vector detection section configured to detect a motion vector of a predetermined area to be encoded in a frame picture, a prediction section configured to predict 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 section configured to determine whether or not the motion vector detected by the motion vector detection section is a predetermined motion vector set in accordance with the motion vector predicted by the prediction section, and a switching section configured to switch 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 section is the predetermined motion vector.

Moving picture coding apparatus, moving picture decoding apparatus, moving picture coding method, moving picture decoding method, program, and computer-readable recording medium containing the program

In a proxy terminal or server a path setting can be performed by a server apparatus and a path setting that includes, as a relay point, a proxy terminal arbitrarily specified by a user or the proxy terminal located in a local network to which the user belongs, without adding any function to a user terminal. The proxy terminal includes a terminal group information generator unit configured to generate terminal group information that includes a user terminal identifier and a proxy terminal network identifier as a pair, and to transmit, to a server apparatus, the generated terminal group information.

Proxy terminal, server apparatus, proxy terminal communication path setting method, and server apparatus communication path setting method

Growing community of inventors

Yokohama, Japan

Minoru Etoh