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Projector image distortion correction method and device and computer readable storage medium

A technology of image distortion and projector, which is applied in the field of projection, can solve the problems of low correction efficiency, long correction time, and the projected picture cannot be completely parallel to the light curtain, so as to improve the correction efficiency and shorten the correction time.

Active Publication Date: 2019-03-26
GOERTEK OPTICAL TECH CO LTD
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AI Technical Summary

Problems solved by technology

Due to the technological characteristics of the laser beam scanning projector and the inevitable tooling errors during the test, the projection screen cannot be completely parallel to the light curtain, which will cause distortion of the projection graphics
[0004] In the prior art, the distorted image is generally corrected by manual correction, which leads to long correction time and low correction efficiency

Method used

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  • Projector image distortion correction method and device and computer readable storage medium
  • Projector image distortion correction method and device and computer readable storage medium
  • Projector image distortion correction method and device and computer readable storage medium

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Embodiment Construction

[0051] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0052] The main solution of the embodiment of the present invention is:

[0053] Obtain the projected graphics of the projector;

[0054] determining the position of each pixel row according to the projection pattern, and obtaining the horizontal row length and the lateral distortion length of each pixel row in the projection pattern;

[0055] calculating the corrected pixel amount according to the horizontal distortion length and the horizontal row length, and correcting the pixel display position of the projector according to the corrected pixel amount.

[0056] A method, device, and computer-readable storage medium for correcting image distortion of a projector proposed by an embodiment of the present invention obtain the projection image of the projector, then determine the position of each pixel row according to...

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Abstract

The invention discloses a method for correcting image distortion of a projector. The method comprises the following steps: obtaining a projection graph of the projector; Determining the position of each pixel row according to the projection graph, and obtaining the transverse row length and the transverse distortion length of each pixel row in the projection graph; And calculating a correction pixel quantity according to the transverse distortion length and the transverse row length, and correcting the pixel display position of the projector according to the correction pixel quantity. The invention also discloses a projector image distortion correction device and a computer readable storage medium. The technical problems of long inherent distortion correction time and low correction efficiency of a projection graph output by a laser beam scanning projector are solved.

Description

technical field [0001] The present invention relates to the field of projection technology, in particular to a correction method, device and computer readable medium for image distortion of a projector. Background technique [0002] The laser beam scanning projector has the advantages of simple structure, small size, small optical path loss, low power consumption, wide color range, high contrast, high resolution, and no need for focusing. [0003] The laser beam scanning projector uses its main component MEMS (Micro-Electro-Mechanical System, Micro-Electro-Mechanical System) to control the mirror to swing around the horizontal and vertical axes to realize the scanning of the laser beam. In the MEMS driving signal, the horizontal direction is driven by a sinusoidal signal consistent with the horizontal resonance frequency of the MEMS, and the vertical direction is driven by a 60 Hz sawtooth wave. Due to the technological characteristics of the laser beam scanning projector a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00G06T3/00
CPCG06T3/18G06T5/80
Inventor 高文刚
Owner GOERTEK OPTICAL TECH CO LTD
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