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Smooth connection method and device among multiple lines among multiple road segments of crowdsourcing data

A smooth connection and data technology, applied in the field of high-precision maps, can solve problems such as uneven and continuous connections

Pending Publication Date: 2021-04-30
WUHAN ZHONGHAITING DATA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When crowdsourced lane line data is used to fuse the collected data of lane lines of urban roads, it is necessary to classify the lane lines within the segment using the lane line data that has been divided into roads and segments, and to fuse the same kind of lines. The connection of the fusion result lines between fragments. When these lines are directly connected, there may still be unsmooth and continuous connections between the fragments and the lines that can be connected to the fragments. Therefore, a smoothing of the direct connection is required. Methods

Method used

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  • Smooth connection method and device among multiple lines among multiple road segments of crowdsourcing data
  • Smooth connection method and device among multiple lines among multiple road segments of crowdsourcing data
  • Smooth connection method and device among multiple lines among multiple road segments of crowdsourcing data

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Embodiment 1

[0045] Embodiment 1 provided by the present invention is an embodiment of a smooth connection method between multi-lines among multi-road segments of crowdsourcing data provided by the present invention, combining figure 1 As can be seen, this embodiment includes:

[0046] Step 1, get the corresponding line segment L in the two segments before and after the direct connection 1 and line segment L 2 , calculate the line segment L 1 and line segment L 2 The fitted output line L of 0 .

[0047] Preferably, the fitted output line L is obtained 0 The process includes:

[0048] Line segment L 1 with line segment L 2 The point set of is used as the input fusion input, and the optimal fusion method of the measurement data of the same lane line in the crowdsourcing data road segment is used to establish an optimization problem, and the data of each shape point in the input point set is modeled, and the minimization problem is solved to obtain the output line equation , so that ...

Embodiment 2

[0064] Embodiment 2 provided by the present invention is an embodiment of a device for smooth connection between multiple lines between multiple road segments of crowdsourcing data provided by the present invention, such as figure 2 Shown is a structural block diagram of an embodiment of a multi-line smooth connection device between multiple road segments of crowdsourcing data provided by the present invention, consisting of figure 2 It can be seen that the device includes: a fitting line output module 101 , a deviation vector calculation module 102 , a deviation coefficient vector calculation module 103 and a smooth line output module 104 .

[0065] The fitted line output module 101 is used to obtain the corresponding line segment L in the two segments before and after the direct connection1 and line segment L 2 , calculate the line segment L 1 and line segment L 2 The fitted output line L of 0 .

[0066] Deviation vector calculation module 102, used to calculate the fi...

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Abstract

The invention relates to a smooth connection method and device among multiple lines among multiple road segments of crowdsourcing data, and the method comprises the steps: obtaining a corresponding line segment L1 and a corresponding line segment L2 in a front segment and a rear segment which are directly connected, and obtaining a fitting output line L0 of the line segment L1 and the line segment L2 through calculation; calculating a first point deviation vector and a tail point deviation vector, calculating a first point deviation coefficient vector and a tail point deviation coefficient vector according to the first point deviation vector and the tail point deviation vector and the number N0 of line points on a fitting output line L0, and calculating a translation matrix according to the first point deviation coefficient vector and the tail point deviation coefficient vector of the first point deviation vector and the tail point deviation vector; performing translation according to the translation matrix to obtain an output line Lout. The same line in the two sections is smooth and continuous, and the precision of the result line in the two road segments is improved to a certain extent on the basis of smoothness.

Description

technical field [0001] The invention relates to the field of high-precision maps, in particular to a method and device for smooth connection between multiple road segments of crowdsourcing data. Background technique [0002] When crowdsourced lane line data is used to fuse the collected data of lane lines of urban roads, it is necessary to classify the lane lines within the segment using the lane line data that has been divided into roads and segments, and to fuse the same kind of lines. The connection of the fusion result lines between fragments. When these lines are directly connected, there may still be unsmooth and continuous connections between the fragments and the lines that can be connected to the fragments. Therefore, a smoothing of the direct connection is required. Methods. Contents of the invention [0003] Aiming at the technical problems in the prior art, the present invention provides a method and device for smooth connection between multi-lines among multi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/16G06F17/17
CPCG06F17/16G06F17/17Y02T10/40
Inventor 朱紫威秦峰王军尹玉成罗跃军
Owner WUHAN ZHONGHAITING DATA TECH CO LTD
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