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Method And Apparatus For Generating Road Surface And Method And Apparatus For Processing Point Cloud Data

A point cloud data generation device technology, applied in the direction of image data processing, measurement devices, road network navigators, etc., can solve the problems of errors, regardless of the environment, etc., and achieve the effect of improving automatic filtering techniques

Active Publication Date: 2017-10-20
THINKWARESYSTEMS CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] However, the prior art is a limited method due to the limitation of filtering technology, that is, only using a mobile mapping system to reduce the noise of the metadata obtained at night when there are few things and traffic, or extracting road surfaces manually
[0008] Also, a filtering method that applies a fixed threshold value is also used, but this method has errors because it does not consider the environment at the time of shooting.

Method used

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Embodiment Construction

[0056] The following is merely illustrative of the principles of the invention. Therefore, although not explicitly described or shown in this specification, those of ordinary skill in the art to which the present invention pertains can invent various devices embodying the principles of the present invention and belonging to the concept and scope of the present invention. And, in principle, all conditional terms and examples enumerated in this specification are only for understanding the concept of the present invention, and are not limited to the examples and states specifically enumerated above.

[0057] Moreover, not only the principles, viewpoints, and embodiments of the present invention, but also all detailed descriptions of specific embodiments include structural and functional equivalent technical solutions of the above matters. Moreover, the above-mentioned equivalent technical solutions include not only currently known equivalent technical solutions, but also equivale...

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Abstract

Provided herein are a method and apparatus for generating road surface and a method and apparatus for processing point cloud data. The method for generating the road surface comprises the steps of obtaining a view height of a laser scanner used in an operation process through a mobile mapping system (MMS); determining a reference height on the basis of the obtained view height and a height measured by a global positioning system (GPS); extracting point cloud data positioned in a predetermined height range from the determined reference height among point cloud data obtained in the mobile mapping system; and generating the road surface on the basis of the extracted point cloud data.

Description

technical field [0001] The present invention relates to a road surface generation method, a road surface generation device, a point cloud data processing method, a point cloud data processing device, a computer program, and a computer-readable recording medium. A road surface generating method of road surface shape data, a road surface generating device, a point cloud data processing method, a point cloud data processing device, a computer program, and a computer-readable recording medium. Background technique [0002] In order to realize the practical application of autonomous driving vehicles, it is necessary to request a precise map that displays road information such as three-dimensional road surfaces, lanes, stop lines, pedestrian crossings, and three-dimensional positions of road facilities such as signal lights. [0003] As a method of constructing a precise map, a representative method is the use of a vehicle-mounted mobile mapping system. The vehicle-mounted mobile ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/32G01S17/86G01S17/89
CPCG01C21/32G01S19/485G01S17/42G01S7/4808G01S17/89G01S17/86G06T15/005G06T17/05G06T7/70G01S19/39G06T2207/30236G06T2207/30256G01S19/42
Inventor 崔蕙先李起旭卞惠擎
Owner THINKWARESYSTEMS CORP
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