Samsung Electronics Co., Ltd.

Samsung Medison Co., Ltd.

Dong-geon Kong

Seok-won Bang

Hyoung-ki Lee

Hyeon Koon Myeong

Chang-kyu Choi

Jun-Ho Park

Ki-wan Choi

Su-jinn Lee

Yeun-bae Kim

Kyung-hwan Kim

Ji-young Park

Kwang-hyeon Lee

Won-chul Bang

Sung-jung Cho

Yong-beom Lee

Ji-hye Chung

Sun-gi Hong

Eun-Young Choi

Jay-woo Kim

Mi-hee Lee

Bon-young Lee

Seong-hyeon Choi

Hyoung-Ki Lee

Provided is an ultrasound diagnostic apparatus including a probe configured to induce displacement in tissue of an object by irradiating a first focused beam of a first frequency to the object; and a processor configured to obtain a first ultrasound image of the object in which displacement has been induced; to determine whether the induced displacement is appropriate based on the obtained first ultrasound image; when the induced displacement is not appropriate, to control the probe to irradiate a second focused beam of a second frequency different from the first frequency to the object, so as to induce displacement in the tissue of the object; and to process a second ultrasound image of the object in which displacement has been induced by the second focused beam.

Ultrasonic diagnostic device and control method therefor

A method of displaying an elastography image and an ultrasound diagnosis apparatus performing the method are provided. The method includes transmitting an ultrasound signal to an object, receiving a response signal to the transmitted ultrasound signal, determining ultrasound image data based on the received response signal, determining displacement image data based on the determined ultrasound image data, generating elastography images based on the determined displacement image data, dividing the elastography images into sections based on a criterion, and determining a representative elastography image of each of the sections based on one or more elastography images in each of the sections and quality information of the one or more elastography images, the quality information being based on a strain of a first elastography image among the one or more elastography images. The method further includes displaying the representative elastography image.

Method of displaying elastography image and ultrasound diagnosis apparatus performing the method

A probe irradiates an ultrasound wave to an object to induce a shear wave and first elasticity information is obtained according to a first calculating scheme. An internal region of interest of the object is set based on shear modulus values included in the first elasticity information. Second elasticity information is obtained based on the shear wave induced to the internal region of interest, according to a second calculating scheme. Accurate elasticity information is acquired by using the first and second elasticity information to obtain third elasticity information from which an elastography image is generated for display to a user.

Method and apparatus for obtaining elasticity information about region of interest by using shear wave

An ultrasound diagnostic apparatus includes: a probe that includes a transducer array including transducers, which are activated as a first transducer group and a second transducer group, is configured to transmit ultrasound waves by at least one transducer included in the first transducer group and at least one transducer included in the second transducer group, and to detect echo signals from an object; and a controller configured to select a number of transducers to be activated in the first transducer group and in the second transducer group based on the object or a measurement result, generate echo images from the echo signals, and measure an object change movement speed, which is a speed at which a change in the object moves, from the echo images.

Ultrasound diagnostic apparatus, ultrasound image capturing method, and computer-readable recording medium

Disclosed is a method and apparatus of generating a temperature image during ultrasonic treatment, the method including setting a first plane indicating a heating region where ultrasonic waves for treatment are irradiated and setting a second plane indicating a protective region around the heating region; irradiating the first plane with ultrasonic waves for diagnosis at a first frame rate, and irradiating the second plane with the ultrasonic waves for diagnosis at a second frame rate, the second frame rate being lower than the first frame rate; and generating the temperature image using frame images acquired from irradiating the ultrasonic waves for diagnosis.

Method and apparatus for generating a temperature image

A method of measuring propagation of a shear wave by using an ultrasound transducer includes generating a shear wave inside the object, setting a region of interest (ROI) on which propagation of the shear wave is to be observed, and determining a position of a second focus on which ultrasound signals are to be directed to obtain information about the ROI, irradiating the ultrasound signals toward the second focus, and receiving echo signals reflected from the ROI.

Method, apparatus, and system for measuring propagation of shear wave using ultrasound transducer

Disclosed is a method, apparatus, and medium for estimating a pose of a moving robot using a particle filter. A method for estimating a pose of a moving robot using a particle filter according to an embodiment of the invention includes a detecting a change in pose of the mobile robot and calculating a pose of the current particle by applying the detected change in pose to the previous particle, predicting the probability of the pose of the current particle and obtaining a weight of the current particle on the basis of range data obtained by a sensor and map information, resampling the current particle on the basis of the weight, and adjusting the weight in consideration of an error of the sensor.

Method, apparatus, and medium for estimating pose of mobile robot using particle filter

An apparatus and method for building a map are provided. According to the apparatus and method, a path is generated on the basis of the degrees of uncertainty of features extracted from an image obtained while a mobile robot explores unknown surroundings, and the mobile robot travels along the generated path. The path based on the degrees of uncertainty of the features is generated and this may increase the accuracy of a feature map of the mobile robot or accuracy in self localization.

Apparatus and method for building map

Disclosed is a mobile robot and method generating a path of the mobile robot, capable of quickly moving the mobile robot to a location at which the mobile robot is able to detect a docking station. A first configuration space map is built by expanding an obstacle area including an obstacle by a first thickness, and a second configuration space map is built by expanding the obstacle area by a second thickness which is less than the first thickness. A path is generated by sequentially using the first configuration space map and the second configuration space map.

Mobile robot and method for moving mobile robot

Provided are an apparatus allowing a moving robot to localize a user, or localizing the moving robot from a fixed location, and a method and medium thereof. The apparatus includes a motion controller to control the moving robot such that the sensor passes a plurality of measurement points by rotating the moving robot, a distance measuring unit, which includes the sensor that senses predetermined waves generated from the transmitter, to measure distances between the sensor and the transmitter at the plurality of measurement points, a rotational angle measuring unit to measure rotational angles of the moving robot at the measurement points, and a location calculator to calculate relative locations using input values of the measured distances, the measured rotational angles, and the radius of a circle determined by the sensor resulting from the rotation of the moving robot.

Apparatus, method, and medium for localizing moving robot and transmitter

Provided are a method, apparatus, and medium for building a grid map in a mobile robot and a method, apparatus, and medium for cell decomposition using the grid map building method and apparatus. A mobile robot for building a grid map includes a grid map building unit obtaining grid points by sensing a distance to an external space or obstacle, and building a grid map, a feature point extraction unit extracting feature points from the grid points, a feature point update unit estimating the pose of the robot after the robot moves, and obtaining updated feature points by SLAM (Simultaneous Localization And Map building) algorithm, a transform formula calculation unit calculating a transform formula that transforms feature points extracted by the feature point extraction unit into feature points updated by the feature point update unit, and a grid map update unit updating the grid map according to the obtained formula.

Method, apparatus, and medium for building grid map in mobile robot and method, apparatus, and medium for cell decomposition that uses grid map

Disclosed is a method, apparatus, and medium for estimating a pose of a moving robot using a particle filter. A method for estimating a pose of a moving robot using a particle filter according to an embodiment of the invention includes a detecting a change in pose of the mobile robot and calculating a pose of the current particle by applying the detected change in pose to the previous particle, predicting the probability of the pose of the current particle and obtaining a weight of the current particle on the basis of range data obtained by a sensor and map information, resampling the current particle on the basis of the weight, and adjusting the weight in consideration of an error of the sensor

Methods, apparatus, and medium for estimating pose of mobile robot using particle filter

A method of navigating through audio files and an apparatus for playing back audio files using the method are provided. The apparatus for playing back audio files includes an input module which receives from a user a command to switch the apparatus to a navigation mode, a storage module which stores a plurality of audio files, each audio file comprising a highlight section, a control module which extracts the audio files from the storage module in response to the command received by the input module and plays back the highlight sections of the audio files while adjusting a volume level for each of the audio files, and an output module which outputs to the user the highlight sections of the audio files played back by the control module.

Apparatus for playing back audio files and method of navigating through audio files using the apparatus

A system, method and medium for browsing media content using meta data, in which media content stored in the system is efficiently browsed using meta data of media content currently in use and media content related meta data. The system includes a media reproducing unit to reproduce media content having corresponding meta data, a root category generating unit to generate at least one root category from meta data corresponding to the media content currently in use, and a sub-category generating unit to generate at least one sub-category of a root category selected by a user from among the at least one root category, based on the meta data.

System, method and medium browsing media content using meta data

A system and method to estimate a location of a speaker who produces a sound signal even in a non-stationary noise environment. The system includes a signal input module receiving a first sound signal from an outside; an initialization module preparing a sound map, on which a spatial spectrum for the first sound signal, produced from at least one fixed sound source and received by the signal input module, is arranged, and estimating a location of the fixed sound source; a storage module storing information about the estimated location of the fixed sound source; and a speaker's location estimation module estimating a location where a second sound signal is produced using information about the spatial spectrum for sound signals including the first sound signal received by the signal input module and the information about the estimated location of the fixed sound source.

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Yongin-si, South Korea

Dong-geon Kong