Method, device and system for determining region of interest of traffic sign
A region of interest, traffic sign technology, applied in character and pattern recognition, instruments, calculations, etc., can solve problems such as interference from environmental factors, inability to provide correction results, and poor accuracy
Pending Publication Date: 2021-06-18
DAIMLER AG
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the above solutions still have many deficiencies. In particular, the estimation strategy of slope information based on the vehicle's own pose is poor in accuracy, and it is especially susceptible to interference from various environmental factors. In many cases, it cannot provide reliable correction results.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0040] In order to make the technical problems, technical solutions and beneficial technical effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and multiple exemplary embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, rather than to limit the protection scope of the present invention.
[0041] figure 1 A flow chart of a method for determining a region of interest according to an exemplary embodiment of the present invention is shown.
[0042]In step S1, the geographical position information of the traffic sign that affects the traffic behavior of the vehicle is read from the high-precision map. Here, the geographic location information includes at least the relative ground height of the traffic sign. In the sense of the present invention, a traffic sign can be, for example, a traffic s...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to the field of image processing. The present invention provides a method for determining a region of interest of a traffic sign. The method comprises the steps: reading geographical location information of a traffic sign affecting traffic behavior of a vehicle from a high precision map, wherein the geographical location information comprises a relative ground height of the traffic sign; reading terrain information, limited by regional expression, of a road section from the vehicle to the traffic sign from the high-precision map; acquiring an image of a vehicle surrounding environment including the traffic sign; and determining a region of interest of the traffic sign in the image at least based on geographical location information and topographic information of the traffic sign. The invention also provides a device for determining the region of interest of the traffic sign and a system for identifying the state of the traffic sign. The invention aims to solve the problem that the traffic sign cannot be identified in a slope road section due to the regional expression limitation of a high-precision map, and the accuracy of automatic driving environment perception is effectively improved.
Description
technical field [0001] The invention relates to a method for determining a region of interest of a traffic sign, a device for determining a region of interest of a traffic sign, and a system for recognizing a state of a traffic sign. Background technique [0002] In order to realize the automatic driving of vehicles, environmental perception is an important part. A mainstream solution to achieve accurate perception of traffic facilities is: high-precision maps accurately record the three-dimensional coordinate positions of most landmarks in traffic scenes, and through calibration parameters and appropriate coordinate system conversion, the boundaries of these landmarks can be The frame is projected onto the front-view image from the on-board camera. Therefore, purposeful marker status identification can be performed by selecting a region of interest (ROI, Region of Interest) within the projection area. [0003] However, due to China's policy requirements on confidential pr...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G06K9/32G06K9/00
CPCG06V20/582G06V10/25
Inventor 禹尧
Owner DAIMLER AG