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An Exposure Algorithm Based on Tilt Camera

An oblique photography and camera technology, applied in the field of exposure algorithms based on oblique photography cameras, can solve the problems of different exposures, different exposure values, 3D image light and dark spots, etc., to achieve accurate exposure values, improve image quality, and uniform brightness and darkness Effect

Active Publication Date: 2020-11-20
土豆数据科技集团有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing tilt camera, each exposure of the five photographing units is different, and the exposure values ​​of the same photographing unit at different waypoints in one flight are also different, so that the synthesized 3D image has bright and dark spots. Therefore, the design of a An exposure algorithm based on an oblique photographic camera is necessary

Method used

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  • An Exposure Algorithm Based on Tilt Camera

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Embodiment Construction

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0029] See figure 1 , The present invention provides a technical solution:

[0030] An exposure algorithm based on a tilted camera includes the following steps: step one, setting the initial value of the shutter speed; step two, the aperture size series distribution; step three, the exposure test to collect image data; step four, calculating the exposure value; Fifth, calculate the variance; step six, collect the flight photo data of the ...

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Abstract

The invention discloses an exposure algorithm based on an oblique photographic camera, comprising the following steps: Step 1, setting the initial value of the shutter speed; Step 2, distributing the aperture size series; Step 3, collecting image data for exposure testing; Step 4, calculating Exposure value; Step 5, calculating variance; Step 6, airline flight photo data collection; Wherein in above-mentioned step 1, carry out shutter speed initial value setting; High, low delay, and through the reasonable adjustment of the shutter speed and aperture size, the brightness of the object and the exposure compensation constant are calculated using the function formula, so as to calculate the exposure value and make the exposure value more accurate. By substituting the calculated parameters into the camera Taking pictures in different cameras makes the exposure consistency of different cameras better when taking pictures, which improves the effect of exposure; the generated three-dimensional image is uniform in light and dark, which improves the imaging quality.

Description

Technical field [0001] The invention relates to the technical field of drone low-altitude aerial photography, in particular to an exposure algorithm based on a tilted camera. Background technique [0002] Exposure is used to calculate the physical quantity from the scene to the camera's luminous flux; the exposure transition, the photo looks too bright, underexposed, the photo is too dark when opened; the correct exposure value and appropriate image brightness can be changed by changing the exposure time The length and the size of the aperture are given. [0003] The exposure of the five camera units in the existing tilt camera is different each time, and the exposure values ​​of different waypoints in the same camera unit in a flight are also different, which causes the synthesized 3D image to have light and dark spots. Therefore, design one An exposure algorithm based on tilted camera is very necessary. Summary of the invention [0004] The object of the present invention is to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/235
CPCH04N23/73
Inventor 王建张喆王江安
Owner 土豆数据科技集团有限公司