The invention discloses an aerial three-line target, belongs to the technical field of airborne visible light and infrared performance index test and solves the problem that a quasi-aerial three-linetarget cannot be used for performance test of infrared imaging equipment in the prior art. The aerial three-line target comprises black target lines, white target lines and a controller. The lower surface of each black target line is provided with a first heating layer; the lower surface of each white target line is provided with a second heating layer; the first heating layers and the second heating layers are connected with the controller; and the first heating layer and the second heating layer are different in temperature. The aerial three-line target can be used for performance test of resolution and the like of the infrared imaging equipment.

Aerial three-line target

The invention discloses a precise and quick positioning method for vision. On a substrate, small holes with the same size are processed to manufacture a target, a back illumination light source is adopted to carry out illumination on the target; the target is attached to a tested object; when the tested object generates displacement, the target is driven to move, and therefore, all small holes move together; a digital camera is adopted to carry out visual imaging on the target, and the collection of a target light spot and light spot displacement information can be finished through computer image processing; a new sub-region grid positioning method is used for realizing light spot positioning; and therefore, the precise displacement of the tested object is determined. The method innovatively adopts a machine vision technology to process the relative positions of the light spots on different positions, and utilizes a grid region division way to extract the precise displacement information of the system so as to realize non-contact precise positioning, errors can be effectively reduced, and light spot micrometric displacement accuracy is improved.

Precise and quick positioning method for vision

The utility model discloses an infrared detection device used for analyzing infrared image gray scale and temperature correlation. The device is composed of an infrared detector and an infrared target, an infrared detector body is installed on an infrared detector support, an infrared lens is installed on the infrared detector body, an infrared target baffle plate and a heating plate are arranged inside a target outer frame, a probe of a temperature sensor tightly attaches to the middle position of the heating plate, the target baffle plate is provided with target round holes, the distance between the infrared lens and the target baffle plate is 2 meters, the distance between centers of two adjacent target round holes is 0.1 meter, the distance between two adjacent target round holes is 0.05 meter, and the distance between the heating plate and the target baffle plate is 0.2 meter. The infrared detection device provided by the utility model is simple in structure, reasonable in design, convenient to realize, high in precision of image gray scale and temperature correlation, widely applicable to projects relating to temperature measurement, high in security, very practical, excellent in using effect, economical in main power, and convenient for popularization and usage.

Infrared detection device used for analyzing infrared image gray scale and temperature correlation

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Infrared detection device used for analyzing infrared image gray scale and temperature correlation