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Dirt detection method and detection device of projection device and readable storage medium

A technology of a projection device and a detection method is applied in the fields of detection device, contamination detection of projection device, and computer-readable storage medium, which can solve the problems of high detection cost and long projection distance, and achieve the effect of reducing detection cost and requirements.

Active Publication Date: 2020-10-30
GOERTEK INC
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Problems solved by technology

Due to the high requirements of the test environment for obtaining projected images, in order to obtain more accurate detection results, the projection distance is generally relatively long. Therefore, the existing detection methods have the disadvantage of high detection cost

Method used

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  • Dirt detection method and detection device of projection device and readable storage medium
  • Dirt detection method and detection device of projection device and readable storage medium
  • Dirt detection method and detection device of projection device and readable storage medium

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Embodiment Construction

[0040] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0041] The existing detection method obtains the projection image of the projection device at a preset projection distance, and obtains the dirt information of the projection device according to the projection image. Due to the high requirements of the test environment for obtaining projected images, in order to obtain more accurate detection results, the projection distance is generally relatively long. Therefore, the existing detection methods have the disadvantage of high detection cost.

[0042] In order to solve the above defects, an embodiment of the present invention proposes a method for detecting contamination of a projection device, a detection device, and a computer-readable storage medium, wherein the method for detecting contamination of a projection device mainly includes the following steps:

[0043] Ac...

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Abstract

The invention discloses a dirt detection method for a projection device. The dirt detection method comprises the following steps of acquiring a projection image of a second projection device at a first projection distance, obtaining first dirt information corresponding to the projection image, converting the first dirt information into second dirt information corresponding to a second projection distance according to a pre-stored conversion coefficient, the first projection distance being smaller than the second projection distance, and judging the dirt of the second projection device according to the second dirt information. The invention further discloses a detection device and a computer readable storage medium, and the effect of reducing the detection cost is achieved.

Description

technical field [0001] The invention relates to the technical field of projection detection, in particular to a method for detecting contamination of a projection device, a detection device and a computer-readable storage medium. Background technique [0002] The projection device is a device that displays the image through magnification and projection. During the assembly process of the projection device, due to the influence of the process environment, tiny particles such as dust are easy to enter the assembled projection device, and these dusts are easy to affect the projection of the projection device. Therefore, after the projection device is assembled, it is necessary to detect the projection screen of the projection device. [0003] The existing detection method obtains the projection image of the projection device at a preset projection distance, and obtains the dirt information of the projection device according to the projection image. Due to the high requirements...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/31G06T7/00
CPCG06T7/0002H04N9/3191
Inventor 徐振宾柳玉琨宋青林
Owner GOERTEK INC
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