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Projection equipment and projection control method and system thereof

A control method and control system technology, applied in the field of projection, can solve the problems of unsatisfactory correction effect and high cost, and achieve the effects of improving projection display effect, low cost, and improving user experience

Pending Publication Date: 2021-04-09
BEIJING SPREADTRUM HI TECH COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome defects such as unsatisfactory correction effect and high cost in the correction methods of distorted projected images in the prior art, and the purpose is to provide a Projection device and projection control method and system thereof

Method used

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  • Projection equipment and projection control method and system thereof
  • Projection equipment and projection control method and system thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] The projection control method of this embodiment is applied to a projection device. The reference projection image and the reference display area corresponding to the projection device are preset. The projection area corresponding to the reference projection image includes the reference display area. The reference display area is as close as possible to the reference projection image. edges of the projected area to display the projected content as large as possible. Wherein, the projection area corresponding to the reference projection image and the reference display area both correspond to rectangular areas.

[0076] When the projection equipment is tilted due to the placement position, the projected image will be geometrically distorted, such as Figure 5 As shown, the projection control method of this embodiment includes:

[0077] S101. Acquire a distorted projection image; wherein, the distorted projection image corresponds to a distorted display area;

[0078] S1...

Embodiment 2

[0085] like Image 6 As shown, the projection control method of this embodiment is a further improvement on Embodiment 1, specifically:

[0086] Step S102 specifically includes:

[0087] S1021. Receive an operation instruction;

[0088] Wherein, the projection area of ​​the projection device is preset to correspond to the geometric correction interface, the geometric correction interface corresponds to the layout of the reference control points, and the control relationship between the reference control points and the buttons on the body of the projection device or the remote controller is established, so that users can Adjust the position of the reference control point by operating the buttons on the body of the projection device or the remote control.

[0089] Among them, the establishment of a control relationship between the reference control point and the body buttons of the projection device or the remote controller is a mature technology in the field. I won't go into...

Embodiment 3

[0123] The projection control system of this embodiment is applied in the projection device, and the reference projection image and the reference display area corresponding to the projection device are preset. The projection area corresponding to the reference projection image includes the reference display area, and the reference display area is as close as possible to the corresponding reference projection image. edges of the projected area to display the projected content as large as possible. Wherein, the projection area corresponding to the reference projection image and the reference display area both correspond to rectangular areas.

[0124] When the projection equipment is tilted due to the placement position, the projected image will be geometrically distorted, such as Figure 13 As shown, the projection control system of this embodiment includes a distorted projection image acquisition module 1 , a display area adjustment module 2 , a transformation information acqui...

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Abstract

The invention discloses projection equipment and a projection control method and system thereof. The projection control method comprises the following steps: acquiring a distorted projection image, wherein the distorted projection image corresponds to a distorted display area; adjusting the distortion display area to a set display area; obtaining conversion information corresponding to conversion from the distortion display area to the set display area; and correcting the distorted projection image according to the transformation information to obtain a target projection image. According to the invention, a geometrically distorted projection image can be corrected in time, the projection control effect is improved, and the use experience of a user is improved, so that the projection equipment has the advantages of low cost, strong operability, high flexibility and the like; besides, automatic zooming adjustment can be performed on the picture of the correction area so that different use requirements of the user can be met, and the use experience of the user can be further enhanced.

Description

technical field [0001] The present invention relates to the field of projection technology, in particular to a projection device and a projection control method and system thereof. Background technique [0002] In recent years, with the continuous upgrading of technological products, audiences have put forward higher requirements for home audio-visual equipment. Projection equipment (such as projectors) is gradually popular because it can provide theater-like effects. However, the image projected by the projector on the screen is easily affected by the attitude of the projector. If the optical axis of the projector is at a 90-degree angle to the screen in the vertical and horizontal directions, the picture projected on the screen is a regular rectangle, such as figure 1 As shown (the left picture corresponds to the side view, and the right picture corresponds to the top view). If the projector is tilted in a certain direction, the projected image will be distorted to varyin...

Claims

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Application Information

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IPC IPC(8): H04N9/31
CPCH04N9/3188
Inventor 霍星蔡进
Owner BEIJING SPREADTRUM HI TECH COMM TECH CO LTD