Method and device for generating correction information of projection equipment
A technology of projection equipment and correction information, which is applied in the direction of using projection device image reproducer, image communication, color TV parts, etc., can solve the problems of low accuracy of correction information, inability to guarantee the brightness and clarity of projected images, etc. Achieve high calibration efficiency, better calibration effect, and improve calibration efficiency
Active Publication Date: 2020-04-28
HISENSE VISUAL TECH CO LTD
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Problems solved by technology
[0004] The present invention provides a method and device for generating correction information of a projection device to solve the problem that in the prior art, the accuracy of the correction information of the projection device is low, and after the projection device is corrected according to the correction information, the projection screen cannot be guaranteed. The projected image on the problem has good brightness and clarity
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[0021] see figure 1 , figure 1 What is shown is a schematic flowchart of a method for generating correction information of a projection device provided by an embodiment of the present invention. combine figure 1 It can be seen that the method includes:
[0022] Step 101. Acquire first coordinates of at least three first reference points on a projection screen and second coordinates of at least three second reference points on a surface of a projection device.
[0023]It can be known from the foregoing background technology that when using a projection device, it is necessary to adjust the projected image projected by the projection device onto the projection screen to a suitable position on the projection screen so that the entire content of the projected image is displayed on the projection screen, and the center of the projected image The position coincides with the center position of the projection screen, and ensures that the projected image has good brightness and clar...
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The invention discloses a method and device for generating correction information of projection equipment. The method comprises the following steps: acquiring first coordinates of at least three first reference points on a projection screen and second coordinates of at least three second reference points on the surface of the projection equipment; generating a standard coordinate of each second reference point according to the standard location relation between the projection screen and the projection equipment and the first coordinates; and generating the correction information of the projection equipment according to the second coordinates and the standard coordinates. The correction information generated by adopting the method is relatively high in accuracy; after the projection equipment is corrected by adopting the correction information, any one of projection images projected to the projection screen by adopting the projection equipment can be clearly and fully displayed on the projection screen, the correction for each projection image is no longer required, and the correction efficiency of the projection images can be greatly improved.
Description
technical field [0001] The present invention relates to the technical field of projection equipment, in particular to a method and device for generating correction information of projection equipment. Background technique [0002] With the development of projection technology, projection equipment has gradually become a common equipment in people's daily life and work, such as projection TVs and office projectors. During the use of the projection device, the projection image needs to be accurately projected on the projection screen, that is, the projection image is completely displayed on the projection screen, and the center of the projection image coincides with the center of the projection screen. [0003] In the prior art, in order to ensure that the projected image is accurately projected on the projection screen, the projection device is usually mechanically adjusted according to the tilt angle of the projection device and the distance between the projection device and...
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IPC IPC(8): H04N9/31
CPCH04N9/3191
Inventor 张晓峰刘洁
Owner HISENSE VISUAL TECH CO LTD