Method for detecting imaging resolution of aerial camera in high-altitude environment condition

A technology of environmental conditions and detection methods, applied in the field of aerial photography, can solve the problems of time-consuming, manpower and financial resources, and achieve the effects of simple operation, high detection accuracy and simple principle

Inactive Publication Date: 2012-11-28
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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AI Technical Summary

Problems solved by technology

[0003] At present, the resolution test of aerial cameras is only carried out under ground environmental conditions, and the photographic resolution test under high-altitude environmental conditions corresponding to different temperatures and pressures is generally carried out during the actual flight calibration process, which consumes a lot of time, manpower and financial resources

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  • Method for detecting imaging resolution of aerial camera in high-altitude environment condition

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Embodiment Construction

[0012] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0013] Depend on figure 1 As shown, a detection device for an imaging resolution detection method of an aerial camera under high-altitude environmental conditions includes the following components: a light source 1, a resolution plate 2, a collimator 3, an optical vibration isolation platform 4, a temperature-height test chamber 5, a Light window 6, 45° plane mirror 7, camera 8, camera bracket 9, camera integrated controller 10, power supply 11.

[0014] A method for detecting imaging resolution of an aerial camera under high-altitude environmental conditions, the method comprising the following steps:

[0015] Step 1: First install the camera 8 on the camera bracket 9, place it in the temperature-altitude test chamber 5, install the collimator 3 on the optical vibration isolation platform 4, and install the resolution plate 2 on the light so...

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Abstract

The invention discloses a method for detecting imaging resolution of an aerial camera in a high-altitude environment condition, and belongs to the technical field of aerial photography. The method comprises: installing a camera on a camera support, putting the camera support in a temperature-altitude test box, fixing a collimator on an optical vibration isolation platform, fixing a resolution plate in front of a light source of the collimator; installing a light passing window on the temperature-altitude test box, disposing a 45 degrees plane mirror under the light passing window, adjusting the camera and the collimator to make optical axes of the two parallel with each other; light beams passing the resolution plate, reflecting a target image by the 45 degrees plane mirror, the target image being generated by the resolution plate through the collimator, and obtaining the reflected target image by the camera; and adjusting temperature and pressure, simulating different high-altitude environment, controlling camera imaging through a camera synthetic operation instrument, discriminating the image to obtain a result of imaging resolution detection. The method is easy in operation, high in reliability, easy in principle, high in detection precision, and is flexible and reliable. The method enables to obtain images in real time, so as to perform interpretation and comparison. The method has high efficiency and good operability.

Description

technical field [0001] The invention belongs to the technical field of aerial photography, and in particular relates to a method for detecting imaging resolution of aerial cameras under high-altitude environmental conditions. Background technique [0002] As an airborne imaging device, aerial cameras have many advantages such as wide imaging range, flexible use, and strong real-time performance, and are widely used in various fields. When aerial cameras work at high altitudes, the atmospheric pressure and temperature of the environment they are in are constantly changing, which causes changes in internal parameters such as the focal length of the camera, which affects the imaging quality of the camera. The key indicator for assessing the imaging quality of a camera is the maximum resolution that the camera can achieve. [0003] At present, the resolution test of aerial cameras is only carried out under ground environmental conditions, and the photographic resolution test un...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M11/02
Inventor 董斌田海英聂品史磊张景国张建
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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