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Projection device and projection image correction method thereof

A technology for projecting images and projection equipment, which is applied in the field of image correction, can solve the problems of large volume, bulkiness, and low efficiency of projectors, and achieve the effect of improving automation and accuracy

Active Publication Date: 2016-08-03
HISENSE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the large size and heavy weight of the projector, the traditional optical correction method is inefficient

Method used

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  • Projection device and projection image correction method thereof
  • Projection device and projection image correction method thereof
  • Projection device and projection image correction method thereof

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] Such as figure 1 As shown, Embodiment 1 of the present invention provides a projection device 100 , including: a projection unit 11 , an error acquisition unit 12 and a control unit 13 . Wherein, the projection unit 11 includes: a basic projection module 111 and an adjustment projection module 112 . The projection unit 11 is used for projecting the original image onto the screen to form a projected image to be corrected. The error acquisition unit 12 ...

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Abstract

The invention discloses projector equipment and a method thereof for projected image rectifying, relates to the field of image rectifying, and aims at improving automation and accuracy of projected image distortion rectifying on the premise of guaranteeing the quality of the projected image. The projector equipment comprises a projector unit, an error obtaining unit and a control unit, wherein the projector unit comprises a basic projector module and a projector adjusting module and is used for projecting an original image on a screen to form a projected image to be rectified, the error obtaining unit is used for obtaining the distortion error information of the projected image to be rectified and sending the distortion error information to the control unit, and the control unit is used for automatically adjusting the projector adjusting module according to the distortion error information, so that the projected image to be rectified is conducted distortion rectification. The projector equipment and the method thereof for projected image rectifying are mainly applicable to various projector equipment.

Description

technical field [0001] The invention relates to the field of image correction, in particular to a projection device and a projection image correction method thereof. Background technique [0002] In the daily use of a projector, when the angle between the projector and the projection screen is not a right angle, distorted projected images may appear on the projection screen. [0003] Currently, distorted projected images can be corrected by means of electronic correction. Specifically, when the distorted projected image is a trapezoidal picture, the largest quadrilateral can be obtained in the trapezoidal picture, and then the image pixels other than the quadrilateral are all black to complete the electronic correction of the distorted trapezoidal picture. However, the above-mentioned method of electronic correction is at the expense of the quality of the projected image. In addition, the traditional optical correction method, that is, manually adjusting the projection len...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/74G03B21/00G03B21/14
Inventor 李巍田有良闫国枫陈昱
Owner HISENSE
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