System and method for controlling multi-cameral digital aerial photographic camera synchronous exposure

An exposure control and aerial camera technology, which is applied to parts of TV systems, aircraft parts, TVs, etc., can solve the problems of unsatisfactory system and poor synchronization control effect, and achieve the effect of reducing the possibility of triggering asynchrony

Inactive Publication Date: 2013-10-02
CHINA TOPRS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the systems used to control the exposure time are not very ideal, and the synchronous control effect is not good

Method used

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  • System and method for controlling multi-cameral digital aerial photographic camera synchronous exposure
  • System and method for controlling multi-cameral digital aerial photographic camera synchronous exposure
  • System and method for controlling multi-cameral digital aerial photographic camera synchronous exposure

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Embodiment Construction

[0021] The present invention will be described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.

[0022] see figure 1 , the embodiment of the present invention provides a multi-camera digital aerial camera synchronous exposure control system 1, including a host computer 10, an FPGA chip 20 (that is, an FPGA single-chip microcomputer development board) and a first camera 30 electrically connected to the FPGA chip 20 , the second camera 40, the third camera 50, the fourth camera 60 and the fifth camera 70, the host computer 10 is connected with the FPGA chip serial port communication, wherein:

[0023] The FPGA chip 20 is used to receive the exposure signal sent by the host computer and perform preprocessing; analyze the exposure characteristics of different cameras to obtain the timing relationship, adjust the timing of the exposure signal according to the timing relationship, and output five kinds of The contr...

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Abstract

The invention discloses a system and a method for controlling a multi-cameral digital aerial photographic camera synchronous exposure. The system comprises an upper computer, an FPGA (Field-programmable Gate Array) chip as well as a first cameral, a second cameral, a third camera, a fourth camera and a fifth camera which are electrically connected with the FPGA chip, and the upper computer is in communication connection with the series port of the FPGA chip. The method comprises the steps as follows: receiving and pre-treating exposure signals; analyzing the exposure characteristics of different cameras and obtaining time sequence relation; regulating the time sequence of exposure signals according to the time sequence relation; outputting five types of controllable pulse triggering signals in a counting delay triggering way; triggering and controlling the first camera, the second camera, the third camera, the fourth camera and the fifth camera to synchronously execute exposure operation. The system and the method, provided by the invention, ensure the image synchronization precision of the exposure time of the multiple cameras.

Description

technical field [0001] The invention relates to the technical field of aerial photogrammetry, in particular to a multi-camera digital aerial photographing instrument synchronous exposure control system and method. Background technique [0002] In recent years, with the introduction of concepts such as "digital earth" and "digital city", people have put forward new requirements for the acquisition, processing and application of spatial geographic information. At present, high-resolution, high-precision, and multi-angle digital aerial and aerospace images have become the mainstream data source for the production of 3D geographic information digital products. The emergence of multi-camera digital aerial cameras will greatly improve the localization level of digital 3D geographic information products in China, and at the same time help to improve operational efficiency and reduce investment costs. [0003] The multi-camera digital aerial camera can greatly improve the efficienc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232H04N5/06H04N5/235B64D47/08
Inventor 李英成卓十曲磊罗祥勇朱逢洲
Owner CHINA TOPRS TECH
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