A method for obtaining 3D graphics data of cultural relics

A technology of three-dimensional graphics and data, applied in image data processing, measuring devices, 3D modeling, etc., can solve problems such as accelerated cultural relics, damage, and limited accuracy of manual measurement

Inactive Publication Date: 2011-12-28
BEIJING UNIVERSITY OF CIVIL ENGINEERING AND ARCHITECTURE
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Problems solved by technology

[0004] Existing cultural relic restoration surveys are mostly completed by manual measurement and recording, which has some disadvantages: on the one hand, it needs to touch cultural relics, which will accelerate the damage o

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  • A method for obtaining 3D graphics data of cultural relics
  • A method for obtaining 3D graphics data of cultural relics

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Embodiment Construction

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0018] In the method for acquiring three-dimensional graphic data of cultural relics described in the present invention, laser radar technology is applied. Ground-based lidar is a new type of surveying and mapping instrument that integrates a variety of high-tech. It adopts non-contact high-speed laser measurement method to obtain array geometry data of terrain and three-dimensional surface of complex objects in the form of point cloud. The instrument mainly includes a laser ranging system and a laser scanning system, and also integrates CCD digital photography and instrument internal calibration systems. Its working principle is: the scanner emits laser light on the target, calculates the distance between the corresponding measured point and the scanner according to the time...

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Abstract

The invention discloses a method for obtaining three-dimensional graphics data of cultural relics, comprising the following steps: obtaining three-dimensional coordinate value information, reflection intensity information, and scene image data information of each scanning point of cultural relics through ground laser radar; Eliminate error information and redundant information, obtain homogenized data through sampling and interpolation; construct a triangulation model based on the above homogenization data, and map reflection intensity information and scene image data information to the triangulation model to generate Color model of 3D graphic data information. In the method for obtaining three-dimensional graphic data of cultural relics described in the present invention, laser radar technology can be used to directly obtain three-dimensional data on the surface of cultural relics without contact, and real three-dimensional data of cultural relics can be obtained without damaging cultural relics. cracks, deformation of cultural relics and other information, and has an absolute advantage in obtaining large amounts of data.

Description

technical field [0001] The invention relates to a method for acquiring graphic information of cultural relics, in particular to a method for acquiring three-dimensional graphic data of cultural relics. Background technique [0002] Cultural relics record the historical changes of human society and customs and culture, and have great reference significance for the development of modern civilization. [0003] However, for thousands of years, due to the changes in the environment, the impact of human activities, and the serious damage of major natural disasters, precious ancient cultural relics have suffered serious degradation and continuous damage. In order to effectively protect these human heritages, people carry out effective measurement, evaluation and analysis of the status quo of severely damaged cultural relics, and restore them according to the results without damaging the original cultural relics. [0004] Existing cultural relic restoration surveys are mostly compl...

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Application Information

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IPC IPC(8): G06T17/00G01B11/24
Inventor 王晏民王国利胡春梅郭明
Owner BEIJING UNIVERSITY OF CIVIL ENGINEERING AND ARCHITECTURE
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