Auxiliary correction projection method, device and system and calculation program product

A projection device and projection technology are applied in the direction of using projection device image reproducer, electric operation teaching aids, color TV parts, etc., which can solve the problems of poor user experience, low correction efficiency, and low definition of projected images. , to achieve the effect of improving user experience, improving the clarity of the projected picture, and improving the efficiency of correction

Pending Publication Date: 2021-11-02
北京云思智学科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to at least solve the technical problems of low definition of projected images on uneven surfaces, low correction efficiency, and poor user experience.

Method used

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  • Auxiliary correction projection method, device and system and calculation program product
  • Auxiliary correction projection method, device and system and calculation program product
  • Auxiliary correction projection method, device and system and calculation program product

Examples

Experimental program
Comparison scheme
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Embodiment 2

[0135] An apparatus embodiment of the present invention is described below, and the apparatus can be used to execute the method embodiment of the present invention. The details described in the device embodiments of the present invention should be regarded as supplements to the above method embodiments; details not disclosed in the device embodiments of the present invention can be implemented by referring to the above method embodiments.

[0136] According to the second aspect of the present invention, the present invention also provides a projection device for auxiliary correction.

[0137] Figure 13 It is a schematic diagram showing an example of a correction-assisting projection device according to Embodiment 2 of the present invention.

[0138] like Figure 13 As shown, the projection device for auxiliary correction includes a camera device, a projection device, and a processing device for data interaction with the camera device and the projection device.

[0139] Spe...

Embodiment 3

[0154] According to the third aspect of the present invention, the present invention also provides a projection system for auxiliary correction, including: the projection device for auxiliary correction as described in Embodiment 2.

[0155] Figure 14 It is a schematic diagram showing an example of a correction-assisting projection system according to Embodiment 3 of the present invention.

[0156] like Figure 14 As shown, the projection system also includes a correction server, which establishes a communication connection with the projection device, and is used to receive the page image of the page to be corrected from the projection device, identify the content of the page to be corrected, and generate a correction information and send it to the projection device.

[0157] Specifically, the projection device includes a camera device, a projection device, a processing device for performing data interaction with the camera device and the projection device, and a communicat...

Embodiment 4

[0165] Figure 15 is a schematic diagram of a computer program product according to Embodiment 4 of the present invention. like Figure 15 As shown, the computer program product stores a computer executable program, and when the computer executable program is executed, the above-mentioned method of the present invention is realized. The computer readable storage medium may include a data signal carrying readable program code in baseband or as part of a carrier wave traveling as a data signal. Such propagated data signals may take many forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the foregoing. A readable storage medium may also be any readable medium other than a readable storage medium that can send, propagate or transport a program for use by or in conjunction with an instruction execution system, apparatus or device. The program code contained on the readable storage medium may be transmitted by any suitable...

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PUM

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Abstract

The invention belongs to the technical field of auxiliary correction tools, and provides an auxiliary correction projection method, device and system and a calculation program product. The method comprises the steps of fixing a to-be-corrected page, and obtaining a page image of the to-be-corrected page; identifying the content of the page to be corrected to generate correction information; converting the correction information into a correction image, and positioning the correction image into the page image; and projecting the correction image to the fixed to-be-corrected page according to the position of the correction image in the page image so as to assist correction. According to the method and the device, the correction image is projected to the fixed to-be-corrected page, so that the page projection containing the correction information can be reliably ensured to coincide with the to-be-corrected page, the definition of the projection picture of the to-be-corrected page can be improved, a user can be assisted to directly write and correct, the correction efficiency can be effectively improved, the user experience can be improved, and switching between the screen and the to-be-corrected text is not needed in the correction process.

Description

technical field [0001] The invention belongs to the technical field of auxiliary correction tools, and in particular relates to a projection method, device, system and computer program product for auxiliary correction. Background technique [0002] At present, more and more application scenarios (eg, online review, search query, offline correction, etc.) need to upload photos, pictures, etc., and image recognition is required. [0003] Existing homework correction products usually use mobile phone application software to take pictures and make corrections, and the correction results are displayed on the screen of the mobile phone. During the actual operation process of users such as teachers, users need to hold the mobile phone for each correction. The actual correction is performed on the homework, so it is necessary to repeatedly switch between the mobile phone and the pen during the entire correction process, which will cause problems such as low correction efficiency for...

Claims

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Application Information

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IPC IPC(8): H04N9/31G09B7/02
CPCH04N9/3179H04N9/3185G09B7/02
Inventor 杨飞
Owner 北京云思智学科技有限公司
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