A confidence evaluation method and device for stop line extraction
A technology of stop line and confidence, applied in image analysis, image enhancement, instrument and other directions, can solve the problems of time-consuming, false detection, affecting the efficiency of high-precision maps, etc., so as to reduce the time of quality inspection and improve the time of production. Effect
Active Publication Date: 2022-07-01
WUHAN ZHONGHAITING DATA TECH CO LTD
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[0002] Stop lines are one of the elements of making high-precision maps. When making high-precision maps, it is first necessary to extract elements such as stop lines, and then manually check the quality of the automatically extracted stop lines. Only by measuring the stop line can we determine whether it meets the production standards. This process takes a lot of time, and there are also problems of false detection, which greatly affects the efficiency of high-precision map production.
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[0019] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples are only used to explain the present invention, but not to limit the scope of the present invention.
[0020] refer to figure 1 and figure 2 , a confidence evaluation method for stop line extraction, comprising the following steps: S101. Acquire a two-dimensional image of the stop line to be evaluated; S102. Preprocess the two-dimensional image to determine the detection area of the two-dimensional image ; S103. Evaluate whether the two-dimensional image meets the accuracy requirements according to the type of stop line and the pixel distribution characteristics of the detection area.
[0021] It can be understood that, in S101 of some embodiments of the present invention, the data used for the high-precision map is generally laser point cloud data. If the automatically extracted stop line data is laser point cloud data, it needs to...
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The invention relates to a method and device for evaluating the confidence of stop line extraction. The method includes the following steps: acquiring a two-dimensional image of a stop line to be evaluated; preprocessing the two-dimensional image to determine the Detecting area; evaluating whether the 2D image meets the accuracy requirements for the key points of the 2D image according to the type of stop line and the pixel distribution characteristics of the detection area. According to the classification of the stop line types and the distribution characteristics of its pixels, the present invention designs a stop line evaluation method that can automatically judge and extract, thereby reducing the quality inspection time after the stop line extraction in the high-precision map, and greatly improving the Time of high-resolution map production.
Description
technical field [0001] The invention belongs to the field of high-precision electronic map making, and in particular relates to a confidence evaluation method and device for extraction of stop lines. Background technique [0002] The stop line is one of the elements for making a high-precision map. When making a high-precision map, it is necessary to first extract the stop line and other elements, and then manually test the quality of the automatically extracted stop line. It takes a lot of time to measure the stop line to determine whether it meets the production standards, and there is also the problem of false detection, which greatly affects the efficiency of high-precision map production. SUMMARY OF THE INVENTION [0003] In order to reduce the time for manual quality inspection of automatic extraction of stop lines in the process of making high-precision maps, the present invention provides, in a first aspect of the present invention, a confidence evaluation method f...
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IPC IPC(8): G06T7/00G06T7/41G06T7/73
CPCG06T7/0002G06T7/41G06T7/73G06T2207/10028
Inventor 侯国强肖圣惠念何豪杰刘奋
Owner WUHAN ZHONGHAITING DATA TECH CO LTD