A track deduplication method, device and storage medium
A trajectory and trajectory line technology, applied in the information field, can solve problems such as mistaken deletion and low deduplication efficiency, and achieve the effects of avoiding deduplication, improving duplication detection efficiency, and ensuring reliability
Active Publication Date: 2021-10-29
WUHAN ZHONGHAITING DATA TECH CO LTD
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] In view of this, the embodiments of the present invention provide a track deduplication method, device, and storage medium to solve the problem of direct track data comparison. The deduplication efficiency of track deduplication according to the repetition rate is not high, and there may be errors in deletion. question
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
[0022] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the following The described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0023] When the crowdsourcing data collects the data collected by the vehicle, the vehicle trajectory will be recorded and collected. The vehicle trajectory can be recorded by GPS, and then the trajectory data will be transmitted to the server or the corresponding terminal.
[0024] see figure 1 , a schematic flowchart of a trajectory de...
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 provides a track deduplication method, device and storage medium. The method includes: after obtaining the original trajectory, segmenting the original trajectory, and drawing the segmented trajectory into trajectory pictures of the same style; superimposing the trajectory pictures, and judging the superimposed trajectory pictures by a deep learning model to be repeated trajectory, then remove the duplicate trajectory; for all the trajectory segmented equidistant sampling, when the ratio of part of the continuous repeated sample points to the segmented sample points is greater than the preset threshold, the repeated trajectory corresponding to the part of the continuous repeated sample points is deleted. This solution solves the problems of misjudgment and deletion and low deduplication efficiency in the deduplication process based on the repetition rate, which can effectively improve the deduplication efficiency, avoid misjudgment of duplicate tracks, and ensure the accuracy of deduplication.
Description
technical field [0001] The present invention relates to the field of information technology, in particular to a track deduplication method, device and storage medium. Background technique [0002] In the field of autonomous driving, in order to accurately control the driving of vehicles, it is often necessary to draw high-precision maps, and the drawing of high-precision maps is inseparable from the collection and upload of crowdsourced data. Crowdsourcing data generally includes the driving trajectories of the collected vehicles. Due to the large number of collected vehicles, there may often be repeated trajectories for the same road. If all trajectories are analyzed and optimized in the later stage, it will obviously be a lot of repetitive and meaningless work. . [0003] For the repeated trajectory data, at present, only a simple data comparison is performed, and when the repetition rate reaches a certain ratio, it is considered as a trajectory repetition. This method i...
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 Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/62
CPCG06F18/22G06F18/214
Inventor 秦峰尹玉成石涤文胡丹丹罗跃军
Owner WUHAN ZHONGHAITING DATA TECH CO LTD