摘要:
A method and apparatus for tracking an image considering scale are provided. A registered image patch may be divided into a scale-invariant image patch and a scale-variant image patch according to a predetermined scale invariance index (SII). If a registered image patch within an image is a scale-invariant image patch, the scale-invariant image patch is tracked by adjusting its position, while if the registered image patch is a scale-variant image patch, the scale-invariant image patch is tracked by adjusting its position and scale.
摘要:
A method and apparatus for tracking an image considering scale are provided. A registered image patch may be divided into a scale-invariant image patch and a scale-variant image patch according to a predetermined scale invariance index (SII). If a registered image patch within an image is a scale-invariant image patch, the scale-invariant image patch is tracked by adjusting its position, while if the registered image patch is a scale-variant image patch, the scale-invariant image patch is tracked by adjusting its position and scale.
摘要:
A localization method and localization device of a mobile robot is provided. In one aspect, characteristic information of a reference object is stored in advance to be used as a landmark for localization, and reference characteristic information is defined by utilizing the stored characteristic information and characteristic information obtained at an initial location of the mobile robot. Therefore, the accuracy of localization can be increased without the use of additional artificial landmarks.
摘要:
Provided is a method and apparatus for relocating a mobile robot when the mobile robot loses its position due to slipping. The method includes storing a moving path of the mobile robot and effective points on the moving path capable of finding an absolute position from a peripheral image; detecting an abnormal motion of the mobile robot; and when the abnormal motion of the mobile robot is detected, controlling the mobile robot to move to the effective point along a predetermined return path.
摘要:
A SLAM of a robot is provided. The position of a robot and the position of feature data may be estimated by acquiring an image of the robot's surroundings, extracting feature data from the image, and matching the extracted feature data with registered feature data. Furthermore, measurement update is performed in a camera coordinate system and an appropriate assumption is added upon coordinate conversion, thereby reducing non-linear components and thus improving the SLAM performance.
摘要:
A SLAM of a robot is provided. The position of a robot and the position of feature data may be estimated by acquiring an image of the robot's surroundings, extracting feature data from the image, and matching the extracted feature data with registered feature data. Furthermore, measurement update is performed in a camera coordinate system and an appropriate assumption is added upon coordinate conversion, thereby reducing non-linear components and thus improving the SLAM performance.
摘要:
A localization method and localization device of a mobile robot is provided. In one aspect, characteristic information of a reference object is stored in advance to be used as a landmark for localization, and reference characteristic information is defined by utilizing the stored characteristic information and characteristic information obtained at an initial location of the mobile robot. Therefore, the accuracy of localization can be increased without the use of additional artificial landmarks.
摘要:
Provided are a robot capable of improving the computation rate by considering whether a parameter will diverge and modifying the experiment order of offspring during evolutionary computation, when the covariance of system noise and that of measurement noise are calculated for the purpose of localizing the robot by using a Kalman filter, and a method and medium of localizing a robot by using a calculated covariance. The robot includes a gyroscope module providing information regarding rotational angle; an encoder module providing information regarding velocity and information regarding rotational angle of a wheel by sensing motion of the wheel; and a control module estimating a current location according to a Kalman filter method based on information provided by the encoder module and the gyroscope module, a covariance of system noise and a covariance of measurement noise being calculated in an evolutionary computation and applied to the Kalman filter method by the control module, the covariance of system noise and the covariance of measurement noise satisfying a condition that no Kalman filter parameter diverges in the evolutionary computation.
摘要:
An apparatus correcting a bias of a gyroscope that is mounted on a mobile robot and that measures an angular velocity of the mobile robot. The apparatus includes: at least one encoder respectively measuring a traveling velocity of a respective at least one wheel of the mobile robot; a modeling unit calculating an angular velocity of the mobile robot by using the measured traveling velocity; a bias presuming unit determining a confidence range by using difference values between the calculated angular velocity and the measured angular velocity, and calculating a presumed bias by using a value in a confidence range among the difference values; and a bias removing unit removing the presumed bias from the measured angular velocity.
摘要:
Provided are a moving apparatus and an apparatus, method, and medium for compensating position based on a position recognition technology. The moving apparatus which provides a function for correcting a position includes a sensing unit obtaining multiple state information reflecting one or more abnormal movement states generated by movements of the moving apparatus; a state determination unit determining whether or not the abnormal movement state is generated by self-contained navigation, by referring to the obtained multiple state information; and a position information calculation unit calculating final position information of the moving apparatus, by correcting the multiple state information as the abnormal movement state occurs.