Kabushiki Kaisha Toshiba

Toshiba Medical Systems Corporation

Kabuhsiki Kaisha Toshiba

Takeshi Nagai

Takeshi Chujoh

Yoshihiro Kikuchi

Shinichiro Koto

Wataru Asano

Tomoo Yamakage

Akiyuki Tanizawa

Naoto Date

Hisashi Yamada

Tadaaki Masuda

Nakaba Kogure

Hirofumi Muratani

Tomoya Kodama

Toru Kambayashi

Hiroaki Nakai

Atsushi Matsumura

Hideo Ando

Noboru Yamaguchi

Taku Kato

Taichiro Shiodera

Tomoyuki Takeguchi

Ryusuke Hirai

Takaya Ogawa

Takeshi Saito

Yoshinori Shigeta

Shunichi Ishiwata

Hiromitsu Nakayama

Takeshi Chujo

Keiichiro Fujie

Shuo Nomura

Yosihiro Kikuchi

Tooru Kambayashi

A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included.

Video encoding/decoding method and apparatus for motion compensation prediction

A medical image processing apparatus according to an embodiment includes compressing circuitry. The compressing circuitry is configured to compress, for each of a first data group and a second data group both of which being included in data pertaining to a medical image, each of the first data group and the second data group separately, starting from data corresponding to a boundary between the first data group and the second data group and shifting sequentially to a direction away from the boundary.

Medical image processing apparatus and X-ray CT apparatus

According to one embodiment, a prediction unit generates a prediction block to be used for prediction of a coding target block, based on at least one reference block adjacent to the coding target block in the image. Each number of pixels in the coding target block and the prediction block is a power of two. A calculation unit calculates a residual block having residual pixel values between the coding target block and the prediction block. A decision unit decides whether to code the residual block, based on pixel values of at least one of the coding target block, the reference block and the prediction block. A coding unit codes the residual block by variable length coding when the residual block is decided to be coded, and codes a skip flag representing the residual block not being coded when the residual block is not decided to be coded.

Apparatus and method for coding image, and non-transitory computer readable medium thereof

According to an embodiment, a display device includes a display, a deciding unit, a three-dimensional input unit, and a controller. The display configured to display partially a two-dimensional image in a two-dimensional area and a stereoscopic image in a three-dimensional area. The deciding unit is configured to based on a position of the three-dimensional area in the display, decide on a range of a space in front of the display, within which operation of the stereoscopic image with an input device is allowed. The three-dimensional input unit configured to obtain three-dimensional coordinate information inputted by the input device with respect to the display. The display controller is configured to, when the three-dimensional coordinate information is within the decided range, operate the stereoscopic image in accordance with the three-dimensional coordinate information.

Image processing device, image processing method, and computer program product

According to one embodiment, a moving image encoding apparatus includes a calculation unit, a selection unit, and a compression unit. The calculation unit calculates, for each unit of processing, amounts of code using plural variable length compression modes, the variable length compression modes having compression rates different from each other. The selection unit selects a compression mode in which an accumulated amount of code is smaller than or equal to a predetermined amount of code, the compression mode being selected from the variable length compression modes and a fixed length compression mode on the basis of the amounts of code calculated for the variable length compression modes and an amount of code obtained when the image data is compressed by the fixed length compression mode. The compression unit compresses the unit of processing of image data by the compression mode selected and generates compressed data.

Apparatus for encoding moving images to minimize an amount of generated code

Video encoding/ decoding method and apparatus for motion compensation prediction

An example image decoding apparatus and method involves acquiring encoded data including an image code sequence corresponding to a slice of a plurality of slices obtained by dividing a picture of a moving image and first timing information indicating a first time at which the slice is to be decoded and no underflow or overflow occurs in a first virtual reception buffer from which the image code sequence is output in a slice unit. The image code sequence is decoded on the basis of the first timing information.

Image encoding method and image decoding method

According to one embodiment, a radiation detection data processing apparatus includes a data acquisition unit and a data processing unit. The data acquisition unit acquires a radiation detection data from a detector detecting radiation. The data processing unit generates a compressed data to be used for reconstruction of a tomographic image, compression distortion in the compressed data is nearly uniform independently of a signal value from the radiation detection data.

Radiation detection data processing apparatus and method related to compression of radiation detection data

According to an embodiment, an image coding method includes a transforming and quantizing step of orthogonally transforming and quantizing each of a plurality of blocks as a unit within a target region of an input image to obtain coefficients; and a variable-length coding step of coding a plurality of coefficient strings each having coefficients of same frequency component among the blocks within the target region by using a plurality of variable length coding schemes: The variable-length coding step includes switching among the variable-length coding schemes for each coefficient string.

Image coding method and image decoding method

A moving image encoding method includes outputting encoded data that comprises an image code sequence corresponding to slices of a moving image and first timing information indicating times at which the slices are to be decoded.

According to one embodiment, an apparatus codes each line of an image. The apparatus includes a segmentation unit and a coding unit. The segmentation unit is configured to segment the image into a first group including at least a head line and a second group including lines except for the first group. The coding unit is configured to code the first group so that a coding amount of the first group is smaller than a first target coding amount, and to code the second group so that a coding amount of each line of the second group is smaller than a second target coding amount smaller than the first target coding amount.

Apparatus and method for coding image

According to one embodiment, an encoding apparatus includes a first quantizer, a second quantizer, a predictor and a calculator. The first quantizer quantizes an input block to obtain a first quantized block. The second quantizer quantizes a reference pixel to obtain at least one quantized value. The predictor predicts each target pixel in the first quantized block using the at least one quantized value and a quantized value of a pixel that is to be decoded preceding the target pixel in decoding order in the first quantized block to obtain a second quantized block. The calculator calculates a difference between the first quantized block and the second quantized block.

Encoding apparatus and encoding method

A video decoding apparatus includes a decoder to decode video encoded data using a predictive picture signal for a video signal, a compression device compressing the decoded picture signal, a first memory storing the decoded picture signal, a second memory storing the compressed picture signal, a decompression device decompressing the compressed picture signal read from the second memory, a selector selecting one of a decoded picture signal read from the first memory and a compressed/decompressed picture signal from the compression device as a reference picture signal according to at least one of a coding type of the video encoded data in picture unit and a prediction mode in block unit, and a motion compensator performing motion compensation on the reference picture signal to generate a predictive picture signal.

Video decoding method and apparatus

A moving image compression-coding device has a pixel determination module configured to determine whether a color of each pixel in a macro block having a plurality of pixels in an input image is a predetermined color, a pixel counter configured to count a number of the pixels having the predetermined color in the macro block, a macro block determination module configured to determine whether a color of the macro block is considered to be the predetermined color according to the count result, and a compression-coded data generator configured to compression-code the input image with a compression ratio depending on the determination result.

Moving image compression-coding device, method of compression-coding moving image, and H.264 moving image compression-coding device

A fade detection unit performs fade detection, and in a case where a judgment of fade-in has been made, an encoding control unit notifies a motion detection unit to perform encoding in a reverse order to a display order. The fade detection unit performs the fade detection, and in the case where the judgment of the fade-in or fade-out has been made, the encoding control unit notifies the motion detection unit to perform encoding while importance is attached to a prediction from an image having a larger information amount in a B picture.

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Machida, Japan

Shinichiro Koto