Road map generation system and road map generation method
A map generation and road technology, applied in maps/plans/charts, road network navigators, image analysis, etc., can solve problems such as poor road conditions, inability to obtain road map data, skewed paint, etc.
Pending Publication Date: 2020-07-31
DENSO CORP
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Problems solved by technology
However, considering the fact that the road condition is poor, the paint is skewed
Therefore, if the correction of the road surface markings is simply performed, it may not be possible to obtain realistic and accurate road map data.
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[0022] Hereinafter, an embodiment embodying the present disclosure will be described with reference to the drawings. figure 1 The overall configuration of the road map generation system 1 according to this embodiment is schematically shown. Here, the road map generation system 1 is composed of a data center 2 that collects and analyzes camera image data to generate road map data, and a group of vehicles A traveling on the road. Specifically, the aforementioned vehicle group A includes general automobiles such as passenger cars and trucks.
[0023] Each vehicle A described above is equipped with an in-vehicle device 3 for realizing the road map generation system 1 . Such as figure 2 As shown, the vehicle-mounted device 3 includes a vehicle-mounted camera 4 , a position detection unit 5 , various vehicle-mounted sensors 6 , a map database 7 , a communication unit 8 , an image data storage unit 9 , an operation unit 10 , and a control unit 11 . Among them, the on-vehicle came...
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The present invention relates to a road map generation system and a road map generation method. The road map generation system (1) collects, from multiple vehicles (A) mounted with a vehicle-mounted camera (4), the camera image data obtained by imaging the road state during travel of the vehicles (A), and generates road map data on the basis of the camera image data, and is provided with an imageprocessing device (14) which subjects the collected camera image data to image processing, converts the to orthographic images from directly above, and generates a connected image connecting the multiple orthographic images; an extraction device (14) which extracts defective areas of road markings on the road from the connected image; a determination device (14) which determines whether the defective areas of the road markings are due to noise during the image processing by the image processing device or are really defects; and a correction device (14) which, if the defective areas of the roadmarkings are due to noise during image processing, performs processing to correct the road markings on the basis of the determination results of the determination device (14).
Description
[0001] Cross References to Related Applications [0002] This application is based on Japanese Application No. 2017-240642 filed on December 15, 2017, and its content is cited here. technical field [0003] The present disclosure relates to a road map generation system and a road map generation method for collecting, from a plurality of vehicles equipped with in-vehicle cameras, camera image data obtained by capturing road conditions while the vehicles are traveling, and generating road map data based on the camera image data. . Background technique [0004] A road surface photographing system mounted on a vehicle is considered to photograph the road surface while traveling on the road, and generate a road map including road surface markings from the image (for example, refer to Patent Document 1). In this system, the captured image captured by the camera is converted into an orthographic image viewed from directly above including the road surface markings, and further, a p...
Claims
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IPC IPC(8): G06T11/20G09B29/00
CPCG06T7/00G09B29/106G01C21/3804G01C21/3602G06V20/588G01C21/32G09B29/003
Inventor 野村俊男
Owner DENSO CORP