Abstract: A cleaning robot having a carpet detector and a method of detecting a carpet boundary using the same, in which the presence of the carpet on a floor is detected. The cleaning robot having a carpet detector includes a main body, a driver fixed to the main body to move the robot, and the carpet detector detecting a carpet when the robot is driven by the driver. The method of detecting a carpet boundary includes detecting a carpet using respective carpet detectors fixed to both wheels of a robot, obtaining a moving distance of the robot for an interval between times at which the respective carpet detectors detect the carpet, and calculating a boundary direction of the carpet with respect to a moving direction of the robot using the moving distance and the interval between the times at which the respective carpet detectors detect the carpet.

Abstract: A method and system for treatment and diagnosis using ultrasound includes irradiating ultrasound for treatment into a treatment site, inducing a shear wave around the treatment site, irradiating ultrasound for diagnosis into the treatment site, and determining a degree of treatment or necrosis of a tissue of the treatment site by using a measured displacement of the shear wave.

Abstract: A method of generating a 3D complex octree map. A plurality of points each having 3D location information are detected from a range image. A space having the detected plurality of points is represented using grids. If points in a grid forms a plane, the grid is not subdivided and planar information about the plane is stored. A space not forming a plane is subdivided, thereby enhancing the storage efficiency.

Abstract: An apparatus and method for detecting a motion using a stereo camera are provided. The apparatus can acquire an object image including only an object without a background using the stereo camera. The apparatus can set a motion detection area in the acquired object image and recognize an image change amount in the motion detection area to detect a motion of the object.

Abstract: A method and apparatus for preventing image blur due to camera motion, and more particularly, to a method and apparatus for sensing a camera motion, calculating an amount of the camera motion based on the sensed camera motion, and expressing the calculated amount of the camera motion to a user so that the user can prevent image blur. The method includes: sensing the camera motion; calculating an amount of the camera motion based on the sensed camera motion; and expressing the calculated amount of the camera motion.

Abstract: An apparatus and method for increasing the rate of recognition of spatial writing, the apparatus including an inertia sensor module, a storage module, an operation module, and a recognition module. The inertia sensor module measures acceleration of a spatial writing device. The storage module stores predetermined operation information and parameters for tracing the motion trajectory of spatial writing, and pattern information about the motion trajectory. The operation module calculates a velocity of the spatial writing from the acceleration measured using the operation information and parameters, corrects the calculated motion velocity by limiting positional relationships between predetermined points which correspond to the motion trajectory of the spatial writing, and traces the motion trajectory using the corrected motion velocity.

Abstract: Technology for creating a feature map for localizing a mobile robot and extracting feature information of surroundings is provided. According to one aspect, feature information including a reflection function is extracted from information acquired using a 3D distance sensor and used as a basis for creating a feature map. Thus, a feature map that is less sensitive to change in the surrounding environment can be created, and a success rate of feature matching can be increased.

Abstract: An obstacle detecting apparatus and a method thereof, which are usable in an autonomous moving robot, are provided. The obstacle detecting apparatus extracts at least one plane from measured range data, extracts at least one intersection point and at least one intersection line using at least one plane, and extracts matching data neighboring at least one intersection point and at least one intersection line from the range data. The matching data is extracted by reflecting uncertainties of the intersection point and the intersection line extracted from the measured range data. Matching is performed between the extracted matching data and model data, and an obstruction is detected by using the matching result.

Abstract: A robot having an obstacle detection unit and a method of controlling the robot. The robot includes a main body, a driving unit, an auxiliary body, and a control unit. The driving unit drives the main body along a given surface. The auxiliary body projects from the main body and detecting an obstacle around the main body. The control unit controls the driving unit according to results of the detection so that the main body and the obstacle are maintained at a predetermined distance from each other.

Abstract: A remote robot control method using a three-dimensional pointing procedure and a robot control system using the remote robot control method. The robot control system controls a robot in response to a user's gesture or sign without modifying the structure of the robot. The remote robot control method includes measuring a distance between a remote controller and a robot, calculating an initial position of the remote controller in an inertial navigation frame of the remote controller, calculating an initial position of the robot in the navigation frame of the remote controller, calculating an origin of the inertial navigation frame of the remote controller shown in an inertial navigation frame of the robot, calculating a new position of the remote controller in the inertial navigation frame of the remote controller, and calculating a new position of the robot in the navigation frame of the robot.

Abstract: An audio generating apparatus includes: a sensor which senses a motion of a predetermined apparatus and generates a sensor signal corresponding to the sensed motion; a motion pattern recognizer which recognizes a motion pattern of the predetermined apparatus based on the sensor signal; and an audio signal generator which generates an audio signal corresponding to the motion pattern. The motion pattern recognizer includes: an analog-to-digital converter which converts the sensor signal into a digital sensor signal; and a motion pattern analyzer which analyzes the motion pattern of the predetermined apparatus based on the digital sensor signal. The audio signal generator includes: a storage medium which stores the motion pattern of the predetermined apparatus and audio signal data corresponding to the motion pattern; and a signal generator which extracts the audio signal data from the storage medium to generate the audio signal.

Abstract: An apparatus for correcting an inertial sensor includes an inertial sensor module, a storage module and a control module. The inertial sensor module measures angular velocity and acceleration of an object moving in a space. The storage module stores predetermined operation information and parameters required to correct the measured acceleration. The control module calculates motion velocity from the measured acceleration using the operation information and the parameters, and corrects the calculated motion velocity for each interval between zero-angular-velocity time instances at which angular velocity about an arbitrary axis is “0”.

Abstract: An apparatus, method, and medium for distinguishing the movement state of a mobile robot are provided. The apparatus includes at least one driving wheel rotatably driven by a driving motor, a first rotation sensor to sense rotation of the driving wheel, at least one caster wheel installed corresponding to the driving wheel and freely moving with respect to a bottom surface, a second rotation sensor to sense rotation of the caster wheel, an acceleration sensor to measure acceleration of the mobile robot, an angular velocity sensor to measure angular velocity of the mobile robot, and a movement-state-distinguishing unit to distinguish movement states of the mobile robot through comparison of the velocity or acceleration of the driving wheel obtained by the first rotation sensor, the velocity or acceleration of the caster wheel obtained by the second rotation sensor, the acceleration obtained by the acceleration sensor, and the angular velocity obtained by the angular velocity sensor.

Abstract: A cleaning robot having a carpet detector and a method of detecting a carpet boundary using the same, in which the presence of the carpet on a floor is detected. The cleaning robot having a carpet detector includes a main body, a driver fixed to the main body to move the robot, and the carpet detector detecting a carpet when the robot is driven by the driver. The method of detecting a carpet boundary includes detecting a carpet using respective carpet detectors fixed to both wheels of a robot, obtaining a moving distance of the robot for an interval between times at which the respective carpet detectors detect the carpet, and calculating a boundary direction of the carpet with respect to a moving direction of the robot using the moving distance and the interval between the times at which the respective carpet detectors detect the carpet.

Abstract: A robot having an obstacle detection unit and a method of controlling the robot. The robot includes a main body, a driving unit, an auxiliary body, and a control unit. The driving unit drives the main body along a given surface. The auxiliary body projects from the main body and detecting an obstacle around the main body. The control unit controls the driving unit according to results of the detection so that the main body and the obstacle are maintained at a predetermined distance from each other.

Abstract: A method, apparatus, and medium for outputting multimedia data such as music is disclosed, which can recognize motion of a specified device using an inertial sensor, and mix sound that corresponds to the recognized motion with multimedia data in order to output the multimedia data mixed with the sound. The apparatus for controlling and playing a sound effect by motion detection includes a media playback unit for reading multimedia data and playing a sound signal; a motion sensor for detecting motion of the apparatus and generating a sensor signal that corresponds to the detected motion; a pattern recognition unit for receiving the generated sensor signal and recognizing motion of the apparatus based using a specified standard of judgment; a sound-effect-playback unit for playing the sound effect based on the result of recognition; and an output unit for outputting the played sound signal and the sound effect.

Abstract: An input device includes a sensor configured to generate a signal related to a change in inertia around at least one axis of the input device in response to a contacting of the input device. A processor is configured to receive the signal from the sensor to determine whether the change in inertia around the at least one axis of the input device corresponds to a tapping of the input device.

Abstract: An apparatus and method for providing a user interface that enables a user to select a menu having the same position or direction as a position selected by a remote control. The apparatus includes an interface storing unit which stores items of menus and information about functions provided by the menus, an output unit which outputs items of a first menu stored in the interface storing unit on the circumference of a figure, a receiving unit which receives an input signal from the remote control, and a control unit which, when the input signal received by the receiving unit includes a position selected by the remote control, selects an item of the first menu located at a position of the figure corresponding to the position selected by the remote control and executes a function corresponding to the selected item of the first menu.

Abstract: An apparatus for correcting an inertial sensor includes an inertial sensor module, a storage module and a control module. The inertial sensor module measures angular velocity and acceleration of an object moving in a space. The storage module stores predetermined operation information and parameters required to correct the measured acceleration. The control module calculates motion velocity from the measured acceleration using the operation information and the parameters, and corrects the calculated motion velocity for each interval between zero-angular-velocity time instances at which angular velocity about an arbitrary axis is “0”.

Abstract: An apparatus and method for increasing the rate of recognition of spatial writing, the apparatus including an inertia sensor module, a storage module, an operation module, and a recognition module. The inertia sensor module measures acceleration of a spatial writing device. The storage module stores predetermined operation information and parameters for tracing the motion trajectory of spatial writing, and pattern information about the motion trajectory. The operation module calculates a velocity of the spatial writing from the acceleration measured using the operation information and parameters, corrects the calculated motion velocity by limiting positional relationships between predetermined points which correspond to the motion trajectory of the spatial writing, and traces the motion trajectory using the corrected motion velocity.