Samsung Electronics Co., Ltd.

Yonsei University

Hae-kyung Jung

Min-su Cheon

Il-koo Kim

Jung-hye Min

Jianle Chen

Woo-jin Han

Tammy Lee

Jae-chool Lee

Sun-il Lee

Kyo-hyuk Lee

Sang-rae Lee

Hyun-taek Lee

Young-yoon Lee

Hee-chul Yoon

Dong-hyun Kim

Jae-sung Lee

Yoon-mi Hong

Na-rae Choi

Ki-won Sohn

Ho-kyung Kang

Min-oh Kim

Gye-hyun Kim

Do-sik Hwang

Dong-yeob Han

Jin-seong Jang

Tae-joon Eo

Jae-Hyun Kim

Jeong-Hoon Park

Jae-Sung Lee

Yong-je Kim

Young-ho Moon

Yu-Mi Sohn

Myung-jin Eom

Jong-geun Park

Hyun-seung Lee

Young-woon Lee

A method of encoding a video includes: splitting a picture into a maximum coding unit; for the maximum coding unit, determining coding units having a tree structure including coding units of coded depths and determining encoding modes for the coding units of the coded depths by performing encoding based on coding units according to depths, the coding units according to depths obtained by hierarchically splitting the maximum coding unit as a depth deepens; and outputting information about a maximum coding unit size and, for the maximum coding unit, information indicating an order of split information and skip mode information which is selectively determined for the coding units according to depths, information about the encoding modes for the coding units of the coded depths including the split information and the skip mode information which are arranged according to the order, and encoded video data.

Method and apparatus for encoding video and method and apparatus for decoding video by considering skip and split order

A method and apparatus for decoding a video and a method and apparatus for encoding a video are provided. The method for decoding the video includes: receiving and parsing a bitstream of an encoded video; extracting, from the bitstream, encoded image data of a current picture of the encoded video assigned to a maximum coding unit, and information about a coded depth and an encoding mode according to the maximum coding unit; and decoding the encoded image data for the maximum coding unit based on the information about the coded depth and the encoding mode for the maximum coding unit, in consideration of a raster scanning order for the maximum coding unit and a zigzag scanning order for coding units of the maximum coding unit according to depths.

Method and apparatus for encoding video in consideration of scanning order of coding units having hierarchical structure, and method and apparatus for decoding video in consideration of scanning order of coding units having hierarchical structure

A video decoding method and apparatus and a video encoding method and apparatus based on a scanning order of hierarchical data units are provided. The decoding method includes: receiving and parsing a bitstream of an encoded video; extracting from the bitstream information about a size of a maximum coding unit for decoding a picture of the encoded video, and encoding information about a coded depth and an encoding mode for coding units of the picture, wherein the size of the maximum coding unit is a maximum size of a coding unit which is a data unit for decoding the picture; and determining a hierarchical structure of the maximum coding unit and the coding units into which the picture is divided according to depths, and decoding the picture based on the coding units, by using the information about the size of the maximum coding unit and the encoding information about the coded depth and the encoded mode.

Method and apparatus for encoding video based on scanning order of hierarchical data units, and method and apparatus for decoding video based on scanning order of hierarchical data units

An image processing method and an image processing apparatus are provided. The image processing method measures a myocardial performance index (MPI), the image processing method including: obtaining a region of interest (ROI) for measuring the MPI, based on signal levels of an input signal and an output signal of a heart spectrum image; obtaining a plurality of marker areas, within the obtained ROI, wherein at least one marker for measuring the MPI is located in each of the plurality of marker areas, based on at least one from among a feature value of the input signal and a feature value of the output signal; and obtaining the at least one marker for each of the plurality of marker areas.

Image processing method and apparatus

A method of decoding an image in which wherein, when a prediction mode is an inter prediction mode, not an intra prediction mode, a size of at least one prediction unit in the coding unit is determined independently from a size of at least one transformation unit in the coding unit.

Method and apparatus for encoding and decoding image by using large transform unit

Disclosed is a method for operating an ultrasonic diagnostic apparatus. The method includes transmitting separate first and second ultrasonic signals to an object, receiving a first echo signal which corresponds to the first ultrasonic signal and a second echo signal which corresponds to the second ultrasonic signal, separating the received first and second echo signals in order to generate first ultrasonic data which corresponds to the first echo signal and second ultrasonic data which corresponds to the second echo signal, and displaying a first ultrasonic image which is generated based on the first ultrasonic data and a second ultrasonic image which is generated based on the second ultrasonic data. The first ultrasonic image is an ultrasonic image of a first cross-sectional surface of the object, and the second ultrasonic image is an ultrasonic image of a second cross-sectional surface of the object.

Ultrasonic diagnostic apparatus and method of operating the same

A video decoding apparatus including an extractor which extracts from a bitstream first pattern information indicating whether residual samples of a current coding unit are equal to 0, and when the first pattern information indicates the residual samples are not equal to 0, extracts from the bitstream transformation index information indicating whether a transformation unit of a current level included in the current coding unit is split, a decoder which splits the transformation unit of the current level into transformation units of a lower level when the transformation index information indicates a split of the transformation unit of the current level, wherein the extractor further extracts second pattern information for the transformation unit of the current level when the transformation index information indicates a non-split of the transformation unit of the current level, wherein the second pattern information indicates whether the transformation unit of the current level contains one or more transform coefficients not equal to 0, wherein the transformation unit of the current level is split into four transformation units of the lower level.

Method and apparatus for encoding and decoding video by using pattern information in hierarchical data unit

A computed tomography (CT) apparatus includes a reconstruction unit which reconstructs a first CT image corresponding to a field of view (FOV) by using a first sinogram acquired by a CT scan of an object; and a correction unit which acquires a second sinogram by performing forward projection on the first CT image and acquires a second CT image by using the second sinogram and a third sinogram representing a portion of the object that is not included in the FOV. Thus, the CT apparatus reduces generation of image errors to thereby provide a high-quality reconstructed CT image.

Computed tomography apparatus and method of reconstructing a computed tomography image by the computed tomography apparatus

An image processing method of an image processing apparatus includes projecting centers of pixels of a pixel grid onto a preset common axis, mapping a boundary of a detector cell comprised in the detection unit on the preset common axis, and determining a detector value based on the projecting the centers of the pixels onto the preset common axis and the mapping the boundary of the detector cell on the preset common axis.

Method for projection and back-projection for image processing, and image processing apparatus therefor

Provided is a magnetic resonance imaging (MRI) apparatus. The MRI apparatus includes: a storage configured to store a plurality of MR signal data sets generated by applying a plurality of values of a first MR parameter and a plurality of values of a second MR parameter to an MR signal data generation model; a data acquisition unit configured to acquire an MR signal data set for a specific position of an object by undersampling an MR signal, based on the values of the first MR parameter; and an image processor configured to extract an MR signal data set that matches the MR signal data set acquired by undersampling the MR signal (hereinafter referred to as the 'undersampled MR signal data set') from among the stored MR signal data sets, obtain a value of the second MR parameter for the undersampled MR signal data set based on the extracted MR signal data set, and interpolate unsampled MR signal data in the undersampled MR signal data set (hereinafter, referred to as the 'interpolated MR signal data set') by using the value of the second MR parameter.

Magnetic resonance imaging apparatus and operating method for the same

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Seoul, South Korea

Hae-kyung Jung