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Method for adjusting projection image and projector

A technology for projecting images and projectors, which is applied in the field of projection and can solve problems such as increasing the difficulty of projector operation and increasing the complexity of projector use

Active Publication Date: 2017-12-22
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Manual adjustment is required at present, which increases the difficulty for users to operate the projector, and manual adjustment requires repeated adjustments to obtain a suitable projected image size, which increases the complexity of using the projector

Method used

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  • Method for adjusting projection image and projector
  • Method for adjusting projection image and projector
  • Method for adjusting projection image and projector

Examples

Experimental program
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Effect test

Embodiment 1

[0072] Based on the above projector structure, see figure 2 , which shows a method for adjusting a projected image provided by an embodiment of the present invention, the method may include:

[0073] S201: Shooting the state where the projected image covers the projected plane, to obtain a shot image;

[0074] It can be understood that the technical solution of this embodiment can be used as a solution for the projector to perform a projected image test before projecting the actual image, so that after the test adjustment is completed, the projector can cover an appropriate area on the projection plane when projecting the actual image. area. Therefore, in the above technical solution, preferably, the contrast between the projection image and the projection plane is greater than a preset threshold; , a blue image, such as a red circle, a blue rectangle, etc., which are not specifically limited in this embodiment.

[0075] S202: Detect the captured image according to a prese...

Embodiment 2

[0111] Based on the same technical idea of ​​the foregoing embodiments, see Figure 12 , which shows a projector 120 provided by an embodiment of the present invention, the projector 120 includes an adjustment motor 1201 and an optical zoom lens 1202, and also includes: a photographing module 1203, a detection module 1204, and an adjustment module 1205; wherein,

[0112] The photographing module 1203 is configured to photograph the state where the projection image covers the projection plane, and obtain the photographed image; wherein, the contrast between the projection image and the projection plane is greater than a preset threshold;

[0113] The detection module 1204 is configured to detect the captured image according to a preset boundary detection algorithm, and determine the boundary conditions in the projected image in the captured image;

[0114] The adjustment module 1205 is configured to adjust the coverage state of the projection image on the projection plane by co...

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Abstract

Embodiments of the invention disclose a method for adjusting a projection image and a projector. The method comprises the following steps of carrying out shooting on a coverage state of the projection image for a projection plane to obtain a shot image; detecting the shot image according to a preset boundary detection algorithm and determining a boundary condition in the projection image in the shot image; and adjusting a coverage state of the projection image for the projection plane through controlling an adjustment motor in the projector according to the boundary condition in the projection image in the shot image until the adjusted coverage state of the projection image for the projection plane is adaptive to the projection plane.

Description

technical field [0001] The invention relates to projection technology, in particular to a method for adjusting projected images and a projector. Background technique [0002] During the working process of the current projector, the image is usually projected onto an area plane with a fixed size. When the area covered by the projection image on the projection plane is partially uneven, for example, the size of the wall is smaller than the size of the projection image, it usually needs to pass Manually adjust the lens focal length of the projector to adjust the size of the projected image, and exclude the uneven part from the projected image to ensure that the area covered by the projected image is flat, thereby ensuring viewing quality. [0003] At present, manual adjustment is required, which increases the difficulty for users to operate the projector, and manual adjustment requires repeated adjustments to obtain a suitable projected image size, which increases the complexit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/31
CPCH04N9/3185H04N9/3194H04N9/317H04N9/3182
Inventor 袁洪跃
Owner ZTE CORP
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