Close shot large span digital photogrammetry system

A digital photogrammetry, large-format technology, applied in parts of TV systems, parts of TVs, color TVs, etc., can solve problems such as difficulty in ensuring scanning accuracy requirements, difficulty in ensuring mobile shooting accuracy, and limited CCD array size.

Active Publication Date: 2013-12-04
CHINA TOPRS TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Due to artificial shooting of this type of photography device, it is difficult to guarantee the accuracy of mobile shooting
At the same time, the above-mentioned scanners are all composed of a light source, a focusing lens and a CCD array (Charge-coupled Device, CCD image sensor). The scanning principle is generally that the original is placed face down on the glass table of the scanner, and the lamp inside the scanner The light is emitted to illuminate the original, and the emitted light returns to the CCD through a set of flat mirrors and lenses. Due to the limited size of the CCD array, this type of scanner has a limited scanning range, and it is difficult to guarantee scanning for ancient large-format calligraphy and painting. Accuracy requirements

Method used

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  • Close shot large span digital photogrammetry system
  • Close shot large span digital photogrammetry system
  • Close shot large span digital photogrammetry system

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Embodiment Construction

[0023] The present invention will be described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.

[0024] see figure 1 , the embodiment of the present invention provides a close-range large-format digital photogrammetry system, including a bracket 10, a rectangular acquisition platform 20, an X-axis guide rail 30, a Y-axis guide rail 40, a Z-axis guide rail 50, and a three-axis motion controller (not shown ), and the first stepper motor (not shown), the second stepper motor (not shown), the third stepper motor (not shown) and the three stepper motors one-to-one corresponding to the above three stepper motors Enter motor driver (not shown), camera 60, wherein:

[0025] The rectangular collection platform 20 is arranged on the support 10 and is slidably connected with the support 10;

[0026] The X-axis guide rail 30 is parallel to one side of the rectangular collection platform 20 and is fixed on the bracket 10...

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Abstract

The invention discloses a close shot large span digital photogrammetry system. The close shot large span digital photogrammetry system comprises a support, a rectangular collecting platform, an X-axis guide rail, a Y-axis guide rail, a Z-axis guide rail, a three-axis motion controller, a first stepping motor, a second stepping motor, a third stepping motor, three stepping motor drivers and three cameras, wherein the three stepping motor drivers and the three cameras are in one-to-one correspondence with the three stepping motors. According to the close shot large span digital photogrammetry system, the upward movement of the cameras in a large range is achieved by using the coordination control of the numerical control system, the limitation of scanning span is overcome, scanning precision is also ensured, and the close shot large span digital photogrammetry system is made to be capable of achieving the fidelity of high-precision geometrical information by being matched with a standard control grid board.

Description

technical field [0001] The invention relates to the technical field of aerial photogrammetry, in particular to a close-range large-format digital photogrammetry system. Background technique [0002] Static graphic cultural resources refer to flat, static and immovable two-dimensional calligraphy and painting works on different media. It mainly refers to the paintings and calligraphy collected in the library, such as calligraphy, oil paintings, silk paintings, paper paintings, prints, paper-cuts, rubbings, etc. This kind of static two-dimensional cultural resources is an important part of national cultural resources, carrying thousands of years of Chinese history and the cultural genes of nationalities and regions. The use of close-range photogrammetry technology to scan, digitize and archive cultural resources has far-reaching historical significance for the inheritance, sharing and development of cultural resources. [0003] Most of the existing two-dimensional calligraph...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C11/02H04N5/232
Inventor 李英成丁晓波王凤刘晓龙罗祥勇
Owner CHINA TOPRS TECH
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