摘要:
A method and an apparatus for tracking an object are disclosed. The method includes the steps of detecting, from a disparity map of a current frame, a position of the object including a size of the object and a center of the object; predicting the position of the object in the disparity map of the current frame based on the positions of the object detected from the disparity maps of a predetermined number of frames immediately before the current frame; and correcting the position of the object detected from the disparity map of the current frame to obtain a corrected position based on a confidence level of the size of the object detected from the disparity map of the previous frame, if the position of the object detected from the disparity map of the current frame matches the predicted position of the object.
摘要:
Disclosed are a method and a system for detecting an uneven road surface. The method comprises a step of adopting two depth cameras to capture a depth map, and calculating a disparity map; a step of obtaining a V-disparity map by adopting a V-disparity algorithm based on the disparity map; a step of finding an oblique line corresponding to the road surface so as to let a direction of the oblique line be a direction of the road surface; a step of calculating a projection of cross sectional surface of the road surface based on the disparity map and coordinates of disappearance points; and a step of fitting the projection of the cross sectional surface of the road surface to obtain a road line on the cross sectional surface so as to extract the road surface, and letting points located below the fitted road line be road points.
摘要:
A method and an apparatus for tracking an object are disclosed. The method includes the steps of detecting, from a disparity map of a current frame, a position of the object including a size of the object and a center of the object; predicting the position of the object in the disparity map of the current frame based on the positions of the object detected from the disparity maps of a predetermined number of frames immediately before the current frame; and correcting the position of the object detected from the disparity map of the current frame to obtain a corrected position based on a confidence level of the size of the object detected from the disparity map of the previous frame, if the position of the object detected from the disparity map of the current frame matches the predicted position of the object.
摘要:
Disclosed are a road line detection method and a road line detection device. The road line detection method comprises a step of obtaining a first disparity map including one or more road regions and a corresponding V-disparity image; a step of sequentially detecting plural sloped line segments in the corresponding V-disparity image according to a big-to-small order of disparities and a big-to-small order of V-values, to serve as plural sequentially adjacent road surfaces; a step of obtaining a second disparity map of plural road line regions of interest corresponding to the plural sloped line segments; and a step of detecting one or more road lines in the second disparity map of the plural road line regions of interest.
摘要:
Disclosed are a method and a system for detecting an uneven road surface. The method comprises a step of adopting two depth cameras to capture a depth map, and calculating a disparity map; a step of obtaining a V-disparity map by adopting a V-disparity algorithm based on the disparity map; a step of finding an oblique line corresponding to the road surface so as to let a direction of the oblique line be a direction of the road surface; a step of calculating a projection of cross sectional surface of the road surface based on the disparity map and coordinates of disappearance points; and a step of fitting the projection of the cross sectional surface of the road surface to obtain a road line on the cross sectional surface so as to extract the road surface, and letting points located below the fitted road line be road points.
摘要:
Disclosed are a method and a system for detecting an object on a road. The method comprises a step of simultaneously capturing two depth maps, and then calculating a disparity map; a step of obtaining, based on the disparity map, a V-disparity image by adopting a V-disparity algorithm; a step of detecting an oblique line in the V-disparity image, and then removing points in the disparity map, corresponding to the oblique line so as to acquire a sub-disparity map excluding the road; a step of detecting plural vertical lines in the V-disparity image, and then extracting, for each of the plural vertical lines, points corresponding to this vertical line from the sub-disparity map as an object sub-disparity map corresponding to this vertical line; and a step of merging any two rectangular areas of the object sub-disparity maps approaching each other, into a rectangular object area.
摘要:
A method and an apparatus for detecting a road edge are disclosed. The method includes obtaining a disparity map with a road region and a corresponding V-disparity map; extracting, from the V-disparity map, a road line Lv; obtaining, based on the road line Lv extracted from the V-disparity map, a sub-U-disparity map with the road; and self-adaptively extracting, from the sub-U-disparity map, the road edge. According to the method and the apparatus of an embodiment of the present invention, it is possible to detect the road edge accurately, even when there is not accurate road surface information.
摘要:
Disclosed are a method and a system for detecting an object on a road. The method comprises a step of simultaneously capturing two depth maps, and then calculating a disparity map; a step of obtaining, based on the disparity map, a V-disparity image by adopting a V-disparity algorithm; a step of detecting an oblique line in the V-disparity image, and then removing points in the disparity map, corresponding to the oblique line so as to acquire a sub-disparity map excluding the road; a step of detecting plural vertical lines in the V-disparity image, and then extracting, for each of the plural vertical lines, points corresponding to this vertical line from the sub-disparity map as an object sub-disparity map corresponding to this vertical line; and a step of merging any two rectangular areas of the object sub-disparity maps approaching each other, into a rectangular object area.
摘要:
A method and an apparatus are used for segmenting an object area, the method comprising: a step of obtaining a disparity map of a scene with an object; a step of obtaining one or more candidate object areas with an object outline from the disparity map; a step of obtaining a disparity range of the object within each of the candidate object areas; a step of obtaining object segmentation areas for segmenting the objects within each of the candidate object areas, based on points within the candidate object area that have a disparity value less than a minimum value of the disparity range of the object within the candidate object area; and a step of segmenting the candidate object areas by the object segmentation areas and obtaining a segmentation result of the object area.