Method and mobile detection vehicle for detecting geometric and time phase resolution of space camera

A technology of space camera and mobile detection, which is applied in the direction of motor vehicles, measuring devices, vehicle parts, etc., can solve the problems of poor mobility and achieve the effect of improving test accuracy

Active Publication Date: 2012-07-11
PEKING UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0008] Another object of the present invention is to provide a time-phase resolution detection method of a space camera, which overcomes the shortage of poor mobility of existing fixed targets, and can perform multi-temporal imaging to detect the time-phase resolution of a space camera.

Method used

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  • Method and mobile detection vehicle for detecting geometric and time phase resolution of space camera
  • Method and mobile detection vehicle for detecting geometric and time phase resolution of space camera
  • Method and mobile detection vehicle for detecting geometric and time phase resolution of space camera

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Embodiment Construction

[0057] The mobile detection vehicle used for spatial camera geometry and phase resolution detection of the present invention is a van, including a vehicle body, and targets are coated on the top of the vehicle body and side panels on one or both sides of the vehicle body to form rigid targets The cabin of the mobile detection vehicle is used to store soft targets; the mobile detection vehicle is also equipped with communication and recording devices. The following is a detailed introduction:

[0058] (1) Rigid targets on the top and sides of the car body

[0059] The standard reference object for geometric resolution detection is painted on the roof with waterproof and sunscreen paint. In addition, in order to increase the target area, the target adopts an extendable design, and expandable target plates are installed on both sides of the car body. The target can be stowed when not in use (such as Figure 5 shown), prop up the target when shooting in-flight transit (such as ...

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Abstract

The invention relates to a method for detecting geometric resolution of a space camera, a method for detecting time phase resolution of the space camera, and a mobile detection vehicle for detecting geometric and time phase resolution of the space camera. The conventional ground fixed target form is changed, and a geometric resolution target is combined with the mobile vehicle to form a mobile target, so that geometric resolution detection and mobile calibration function of different time phases are realized, and the test precision of the geometric resolution of the optical camera in a random direction is improved. The conventional ground fixed target can be stored in a cabin, can be quickly arranged in emergency and can also play a role in complementing a hard target of a vehicle body and a conventional soft target. The invention can be widely applied in the fields of detection and calibration of aerospace optical cameras and imaging systems.

Description

Technical field: [0001] The invention relates to the field of detection and calibration of aerospace optical cameras and imaging systems, in particular to a geometric resolution detection method of a space camera, a time-phase resolution detection method of a space camera, and a geometric resolution method applicable to a space camera. and phase-resolution detection of mobile detection vehicles. Background technique: [0002] Geometric resolution is an important indicator of the imaging performance of space cameras. Usually, targets with special shapes and lines are used as standard reference objects, and the geometric resolution is determined by the captured images and corresponding algorithms. [0003] "Standard resolution boards" are used in the laboratory, among which the ISO12233 resolution board of the Japan Imaging and Imaging Manufacturers Association (PIMA) is relatively complete and widely used. Such as figure 1 As shown, the resolution board includes a vertical ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C25/00G01M11/02B60P3/00B62D33/04
Inventor 晏磊段依妮相云勾志阳赵亮景欣孙华波刘绥华孙岩标王露马玉忠
Owner PEKING UNIV
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