Kabushiki Kaisha Toshiba

Toshiba Medical Systems Corporation

Canon Medical Systems Corporation

Taichiro Shiodera

Takeshi Chujoh

Akiyuki Tanizawa

Tomoyuki Takeguchi

Saori Asaka

Shuhei Nitta

Tomoo Yamakage

Jun Yamaguchi

Takashi Ida

Hidenori Takeshima

Toshiyuki Ono

Hiroaki Nakai

Shigehide Kuhara

Masao Yui

Yukinobu Sakata

Naotaka Sakashita

Kenta Moriyasu

Reiko Noda

Takamasa Sugiura

Shinichiro Koto

Nobuyuki Matsumoto

Shinichi Hashimoto

Yasunori Taguchi

Satoshi Sugiura

Yoshiyuki Kokojima

Nakaba Kogure

According to one embodiment, an image encoding method includes selecting a motion reference block from an already-encoded pixel block. The method includes selecting an available block including different motion information from the motion reference block, and selecting a selection block from the available block. The method includes generating a predicted image of the encoding target block using motion information of the selection block. The method includes encoding a prediction error between the predicted image and an original image. The method includes encoding selection information identifying the selection block by referring to a code table decided according to a number of the available block.

Image encoding method and image decoding method

According to one embodiment, an image encoding method includes selecting a motion reference block from an encoded pixel block to which an inter prediction is applied. The method includes selecting one or more available blocks from the motion reference block. The method includes selecting a selection block from the available blocks. The method includes generating a predicted image of the encoding target block using motion information of the selection block. The method includes encoding a prediction error between the predicted image and an original image. The method includes encoding selection information specifying the selection block by referring to a code table decided according to a number of the available blocks.

According to an embodiment, an encoding device includes an index setting unit and an encoding unit. The index setting unit generates a common index in which reference indices of one or more reference images included in a first index and a second index are sorted in a combination so as not to include a same reference image in accordance with a predetermined scanning order. The first index representing a combination of the one or more reference images referred to by a first reference image. The second index representing a combination of the one or more reference images referred to by a second reference image. The encoding unit encodes the common index.

Encoding device, decoding device, encoding method, and decoding method

A method of dividing an input image signal into pixel blocks, and performing inter-prediction on the divided pixel blocks. This method includes selecting predicted motion information from a motion information buffer storing motion information in an encoded region, and predicting motion information of an encoding target block by using the predicted motion information. The method further includes acquiring representative motion information from a plurality of items of motion information in an encoded region in accordance with first information indicating a method of selecting the predicted motion information, thereby obtaining only the representative motion information.

Image encoding and decoding method with merge flag and motion vectors

A photon counting X-ray CT apparatus according to an embodiment includes: data acquiring circuitry, and processing circuitry. The data acquiring circuitry is configured to allocate energy measured by signals output from a photon counting detector in response to incidence of X-ray photons to any of a plurality of first energy bins so as to acquire a first data group as count data of each of the first energy bins. The processing circuitry is configured to determine a plurality of second energy bins obtained by grouping the first energy bins in accordance with a decomposition target material that is a material to be decomposed in a imaging region, allocate the first data group to any of the second energy bins so as to generate a second data group, and use the second data group to generate an image representing a distribution of the decomposition target material.

Photon counting X-ray CT apparatus

Image encoding and decoding method with a merge flag and motion vectors

Growing community of inventors

Tokyo, Japan

Taichiro Shiodera