Projection image correction method and device

A correction method and projection technology, applied in the field of projection correction, can solve problems such as poor visual experience, distortion of projection screen, poor correction effect, etc., and achieve good correction effect and good visual experience

Pending Publication Date: 2019-06-11
GUIAN NEW DISTRICT XINTE ELECTRIC VEHICLE IND CO LTD
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Problems solved by technology

[0004] The correction method in the prior art has poor correction effect when facing a non-parametric proj

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  • Projection image correction method and device
  • Projection image correction method and device
  • Projection image correction method and device

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[0028] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments.

[0029] figure 1 This is a schematic diagram of an application scenario of the projection image correction method provided by an embodiment of this application.

[0030] Such as figure 1 As shown, the application scenario includes a projection device 101 and a photographing device 102. The projection device 101 and the photographing device 102 are in communication connection with the control device 105, and the control device 105 receives the projection image input by the input device 106. The projection device 101 projects the projection i...

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Abstract

The invention provides a projection image correction method and device, and relates to the technical field of projection correction. The projection image correction method comprises the steps of obtaining the actual pixel point coordinates of a real projection image and theoretical pixel point coordinates of the projection image, wherein the theoretical pixel point coordinates of the projection image are used for describing the theoretical coordinates of pixel points in the projection image when the pixel points are projected to a projection area; and obtaining a difference value between the actual pixel point coordinate and the theoretical pixel point coordinate, and adjusting the shape of the projection image according to a difference value between the actual pixel point coordinate and the theoretical pixel point coordinate to obtain a corrected to-be-projected image. When facing a non-parametric projection screen, a corrected projection image cannot be obviously distorted, the correction effect is good, and the visual experience is good.

Description

technical field [0001] The present invention relates to the technical field of projection correction, and in particular, to a projection screen correction method and device. Background technique [0002] With the development of the Internet of Vehicles and automotive electronics technology, more and more vehicle display and projection technologies are used in the car, such as projecting multimedia, reversing images, and surveillance images played in the car. When the vehicle-mounted projection is in use, facing a non-parametric projection screen, nonlinear distortion of the projection screen will occur. [0003] However, at present, the correction of the projected picture is usually performed for the linear distortion in the parametric projection screen, for example, the correction of the trapezoidal distortion. [0004] The correction method in the prior art has a poor correction effect when facing a non-parametric projection screen, and the corrected projection picture st...

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Application Information

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IPC IPC(8): H04N9/31
Inventor 何至军赵闯
Owner GUIAN NEW DISTRICT XINTE ELECTRIC VEHICLE IND CO LTD
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