Hitachi, Ltd.

Ntt Docomo, Inc.

Other

Hitachi Software Engineering Company, Ltd.

Morpho

Hitachi Video and Information System, Inc.

Akira Fujibayashi

Kazuhisa Fujimoto

Shuji Nakamura

Choong Seng Boon

Hiroki Kanai

Atsushi Tanaka

Mutsumi Hosoya

Yoshinori Suzuki

Thiow Keng Tan

Nobuyuki Minowa

Makio Mizuno

Hikari Mikami

Masayuki Yamamoto

Sadaatsu Kato

Wataru Sakurai

Akira Yamamoto

Yoshiki Kano

Naoki Watanabe

Jun Kitahara

Tsutomu Horikoshi

Hisashi Nanao

Yasutomo Yamamoto

Hideaki Fukuda

Sandeep Kanumuri

Onur Gonen Guleryuz

Akiyoshi Hashimoto

Hajime Mori

Junya Takiue

M Reha Civanlar

Makoto Asari

Naoto Matsunami

Yoshifumi Takamoto

Keisuke Hatasaki

Kenji Yamagami

Takatoshi Kato

Takashige Iwamura

Norio Shimozono

Masanori Takada

Yoji Nakatani

Yasuo Inoue

Yutaka Kudo

Akio Nakajima

Masaki Hiraga

Toshiyuki Abe

Tomoya Anzai

Toshiki Shiino

A moving image encoding/decoding system may include a video predictive encoding device, which may include: an encoding device which encodes each of a plurality of input pictures to generate compressed picture data including a random access picture, and encodes data about display order information of each picture; a restoration device which decodes the compressed picture data to restore a reproduced picture; a picture storage device which stores the reproduced picture as a reference picture; and a memory management device which controls the picture storage device. Following completion of an encoding process of generating the random access picture, the memory management device refreshes the picture storage device by setting every reference picture in the picture storage device, except for the random access picture, as unnecessary immediately before or immediately after encoding a picture with display order information larger than the display order information of the random access picture.

Moving image prediction encoding/decoding system

A video prediction encoding device provided with a picture storage unit storing, as reference pictures to be used for encoding of a subsequent picture, one or more of reconstructed pictures restored from compressed picture data and a memory control unit to control a frame memory in the picture storage unit. When a frame size of input pictures is not more than 1/(2{circumflex over (&#x2003;)}L) (where L is an integer of one or more) of a maximum frame size of pictures, the memory control unit determines that (2{circumflex over (&#x2003;)}L) times the maximum number of reconstructed pictures are storable in the frame memory.

VIDEO PREDICTIVE ENCODING DEVICE, VIDEO PREDICTIVE ENCODING Method, video predictive encoding program, video predictive decoding device, video predictive decoding method, and video predictive decoding program

A predictive coding system can encode motion vectors by determining a motion vector of a target partition in a frame picture of an encoding target; determining a first motion vector predictor candidate from a motion vector or motion vectors of one or more partitions belonging to a left-neighboring region to the target partition; determining a second motion vector predictor candidate from a motion vector or motion vectors of one or more partitions belonging to an above-neighboring region to the target partition; selecting an optimum motion vector predictor and outputting motion vector predictor indication information to specify the selected optimum motion vector predictor, the optimum motion vector predictor selected based on comparison between one or more motion vector predictor candidates including the first motion vector predictor candidate and the second motion vector predictor candidate, and the motion vector of the target partition; and encoding the motion vector predictor indication information.

Method and system for predictive coding/decoding with directional scanning

Method and system for predictive decoding with optimum motion vector

A video predictive encoding device can include an input device to implement input of pictures constituting a video sequence; an encoder to encode the pictures by intra-prediction or inter-prediction and to encode output order information of each picture and information about a picture type of each picture to generate compressed picture data. The compressed picture data includes a picture to serve as a random access point. The video predictive coding device can also include a reconstruction unit to decode the compressed picture data to reconstruct pictures; a picture storage unit to store one or more of the reconstructed pictures as reference pictures to be used for encoding of a subsequent picture; and a controller to determine the picture type and control the picture storage unit based on the determined picture type. The controller can label each picture as one of following three types: CRA picture, type-1 picture and type-2 picture.

Dynamic image predictive encoding and decoding device, method, and program

Predictive encoding method, predictive encoding device, and predictive encoding program of motion vector, and, predictive decoding method, predictive decoding device, and predictive decoding program of motion vector

A video prediction encoding device provided with a picture storage unit storing, as reference pictures to be used for encoding of a subsequent picture, one or more of reconstructed pictures restored from compressed picture data and a memory control unit to control a frame memory in the picture storage unit. When a frame size of input pictures is not more than 1/(2^L) (where L is an integer of one or more) of a maximum frame size of pictures, the memory control unit determines that (2^L) times the maximum number of reconstructed pictures are storable in the frame memory.

Video predictive encoding device, video predictive encoding method, video predictive encoding program, video predictive decoding device, video predictive decoding method, and video predictive decoding program

Method and devices for predictive coding/decoding with optimum motion vector

Method and devices for predictive coding/decoding with directional scanning

Growing community of inventors

Sagamihara, Japan

Akira Fujibayashi