Trajectory duplicate removal method and device and storage medium
A trajectory and trajectory line technology, applied in the information field, can solve the problems of low deduplication efficiency and mistaken deletion, and achieve the effect of improving the efficiency of repeated detection, avoiding deduplication, and ensuring reliability
Active Publication Date: 2019-11-12
WUHAN ZHONGHAITING DATA TECH CO LTD
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[0005] In view of this, the embodiment of the present invention provides 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 mistaken deletion The problem
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[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...
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The invention provides a track duplicate removal method and device and a storage medium. The method comprises: after an original track is obtained, segmenting the original track, and drawing the segmented track into track pictures of the same style; superposing the track pictures, judging that the superposed track pictures are repeated tracks through a deep learning model, and removing the repeated tracks; and sampling all tracks in a segmented and equidistant manner, and deleting repeated tracks corresponding to a part of continuous repeated sample points when the ratio of the part of continuous repeated sample points to the segmented sample points is greater than a preset threshold. According to the scheme, the problems of misjudgment, mistaken deletion and low deduplication efficiency in the deduplication process based on the repetition rate are solved. The deduplication efficiency can be effectively improved, meanwhile, misjudgment of repeated tracks can be avoided, and the deduplication accuracy is guaranteed.
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...
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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