摘要:
A lane recognition device has an image acquisition means (2) that acquires an color image of a road via an imaging means (9) mounted on a vehicle (8); lane mark detection means (3, 4) that detect lane marks of different predetermined colors on the road based on color information of the color image and outputs the result of the detection as lane mark candidate data; and a selection means (6) that selects, among the lane mark candidate data of the predetermined colors outputted from at least the lane mark detection means (3, 4), lane mark candidate data corresponding to the lane mark defining the actual lane where the vehicle (8) is traveling, and determines and outputs lane data representing information on the actual lane. Even if lane marks with different colors are present on a road, a lane mark of each color can be appropriately identified by a color image of the road obtained via an imaging means such as a camera.
摘要:
A lane recognizing device comprises: an image processing means (2) which performs a process of estimating a lane of a road by processing an image of the road obtained via an imaging means (8) and outputs a result of the process as first lane information; a holding means (3) which holds map data of the road; a position information obtaining means (4) which obtains the current position information of a vehicle; a lane estimating means (5) which performs a process of estimating the lane of the road using the map data and the current position information and outputs a result of the process as second lane information; and an actual lane recognizing means (6) which recognizes an actual lane of the road on the basis of the first lane information and the second lane information. Thereby, even if there is an unpredictable skid mark or road repaired part, it is possible to detect the lane accurately while increasing the opportunities for detecting the lane as much as possible by processing the road image obtained via the imaging means such as a camera and obtaining the road information from a GPS or the like and the map data.
摘要:
A displacement magnitude calculation device for a vehicle-mounted camera includes a reference value calculating unit 12 which divides, in an image taken by a vehicle-mounted camera 20, a region for measurement Ea into a plurality of measurement unit regions D0 to DN, calculates an average of a luminance value of pixels inside each measurement unit region as reference values re(0,t), re(1,t), ..., re(N,1) of each measurement unit region, and sets a luminance vector VEC(t) indicating a distribution manner in a vertical direction of each reference value, and a camera displacement magnitude calculating unit 13 which calculates a degree of correlation between a luminance vector VEC(t 1 ) of an image taken at t 1 and a luminance vector VEC(t 2 ) of an image taken at t 2 by shifting the vertical luminance vector VEC(t 2 ) in a vertical direction (y direction), and obtains the displacement magnitude of the camera 20 from t 1 to t 2 , on the basis of a shift amount in which the degree of correlation became the highest.
摘要:
A lane mark recognition apparatus has an image acquisition means (30) for acquiring a color image (IM_0) of a road via a color video camera (10), a specific-color-extracted image creation means (31) for creating both a brightness-extracted image (IM_1) obtained by extracting white-color data from the color image (IM_0) and a yellow-color-extracted image (IM_2) obtained by extracting yellow-color data from the color image (IM_0), and a lane mark detection means (50a) detecting a while line and a yellow line from a composite image (IM_C) formed by the brightness-extracted image (IM_1) and the yellow-color-extracted image (IM_2) and outputting positional data (Pd1) of the white line and positional data (Pd2) of the yellow line.
摘要:
An image processing system and the like capable of recognizing a lane mark in a road image with high accuracy are provided even if a light illumination state on a road surface is partially different. According to the image processing system (100) mounted on a vehicle (10), a color component (Rij, Gij, Bij) of the first pixel (Pij) included in an area (Aij) set in the road image is corrected with reference to a color component (Rik, Gik, Bik) of a second pixel (Pik) in view of a fact that it is highly probable that the color component of the second pixel included in the area along with the first pixel is affected by a shadow or light on the road surface. This reduces the effect of the shadow or light on the road surface and the actual color of a road surface portion corresponding to the first pixel can be sufficiently reflected in the color components (Rij, Gij, Bij) of the first pixel (Pij) and consequently in a feature value (Qij). Therefore, a lane mark (M) and its edge (E) are recognized in the road image on the basis of the feature value (Qij) of each pixel (Pij) in the road image.