Projection image correction method and laser projection equipment

A projection image and laser projection technology, which is applied in the field of projection display, can solve problems such as poor display effect of projection images, achieve the effect of ensuring display effect, realizing non-perceptual correction, and good user experience

Pending Publication Date: 2022-03-22
QINGDAO HISENSE LASER DISPLAY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] This application provides a method for correcting projected images and laser projection equipment, which can solve the problem of poor display effect of projected images in the related art

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  • Projection image correction method and laser projection equipment
  • Projection image correction method and laser projection equipment
  • Projection image correction method and laser projection equipment

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Embodiment Construction

[0044] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0045] figure 1 It is a schematic diagram of an implementation environment involved in a projection image correction method provided in an embodiment of the present application. Such as figure 1 As shown, the implementation environment may include: a laser projection device 10 , at least one photographing device 20 and a projection screen 30 . in, figure 1 A photographing device 20 is shown in . The photographing device 20 may be a device capable of photographing the projection screen 30 . For example, the photographing device 20 may be a camera.

[0046] refer to figure 1 , the photographing device 20 may be disposed on the casing of the laser projection device 10 . Alternatively, the photographing device 20 may be provid...

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Abstract

The invention discloses a projected image correction method and laser projection equipment, and relates to the field of projection display. And in the process of projecting the first projection image to the projection screen by the laser projection equipment, acquiring a shot image obtained by shooting the projection screen. The laser projection equipment corrects the projection position of the projection image to be projected on the basis of the deviation parameter determined by the initial positions of the plurality of correction patterns and the target positions of the plurality of correction patterns in the shot image, so that the problem that the projection image does not accord with a projection screen is avoided, and the display effect of the projection image is ensured. Moreover, according to the method provided by the invention, the to-be-projected projection image is automatically corrected in the process of projecting the first projection image to the projection screen, so that a user does not need to manually execute correction operation, and normal playing of the display picture cannot be interrupted. In other words, the method provided by the invention realizes user perception-free correction, and the user experience is relatively good.

Description

technical field [0001] The present application relates to the field of projection display, in particular to a method for correcting projected images and laser projection equipment. Background technique [0002] Ultra-short-throw laser projection equipment can project and display projected images on a projection screen. For ultra-short-focus laser projection equipment, due to the principle of projection imaging, the light is emitted obliquely upwards, so the position between the laser beam emitted by the optical engine in the ultra-short-focus laser projection equipment and the projection screen must be strictly aligned. A slight shift of the focal laser projection equipment can also cause distortion or distortion of the picture. If the user accidentally moves the ultra-short-focus laser projection device, the projected image projected and displayed by the ultra-short-focus laser projection device may not match the projection screen, resulting in a poor display effect of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/31
CPCH04N9/3185H04N9/3161
Inventor 陈星郭大勃肖纪臣梁倩
Owner QINGDAO HISENSE LASER DISPLAY CO LTD
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