Projection system and correction method for displayed image

A technology of a projection system and a correction method, which is applied in the direction of using a projection device image reproducer, image analysis, image communication, etc., can solve the problem of taking a long time and the like
CN109104596BActive Publication Date: 2021-02-26CORETRONIC
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
CORETRONIC
Publication Date
2021-02-26

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Abstract

The invention relates to a projection system and a display image correction method. The method for correcting the displayed image includes: setting the corrected image with a plurality of identification patterns, and establishing the first coordinate information of the identification pattern; causing the projection device to project the corrected image on the display screen; performing an image capture action for the corrected image and the display screen Obtaining the captured image; calculating the second coordinate information of the identification pattern in the captured image, and calculating the coordinate transformation information according to the first coordinate information and the second coordinate information; according to multiple boundary coordinate values โ€‹โ€‹of the display screen in the captured image and the coordinate conversion information to calculate the boundary information of the display screen, so that the projection device adjusts the size of the projected image corresponding to the display screen according to the boundary information. By adopting the present invention, the size of the projected image can be adjusted corresponding to the display screen, so that the projected image can be aligned with the display screen, and the display quality can be effectively improved.
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Description

technical field

[0001] The present invention relates to a projection system and its display image correction method, and in particular to a projection system corresponding display screen display image correction method. Background technique

[0002] In the projection system, the projection screen used as the display screen has a surface structure of special materials, which can make the projected pictures have better contrast and saturation, and provide better display quality. Please refer to the following figure 1 A schematic diagram showing a projection state of a known projection system. In the known technical field, the display image 130 projected by the projector 110 may not be completely displayed on the display screen 120 . Such as figure 1 As shown in FIG. 2 , the size of the displayed image 130 is larger than that of the display screen 120 , and a large part of the peripheral area of โ€‹โ€‹the displayed image 130 is displayed outside the display screen 120 , which re...

Claims

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