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Method, device and terminal device for photographing picture when examination questions are scanned

A technology for photos and designated terminals, applied in the field of image processing, can solve the problems of extra time and slow text extraction, and achieve the effect of speeding up the extraction.

Active Publication Date: 2017-08-29
GUANGDONG XIAOTIANCAI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a method, device, and terminal device for taking photos when scanning questions, so as to solve the problem in the prior art that it takes extra time to process the useless information contained in the photos, resulting in a slow speed of text extraction. slower problem

Method used

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  • Method, device and terminal device for photographing picture when examination questions are scanned
  • Method, device and terminal device for photographing picture when examination questions are scanned
  • Method, device and terminal device for photographing picture when examination questions are scanned

Examples

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Embodiment 1

[0046] Such as figure 2 As shown, it is a schematic flowchart of a method for taking photos when scanning questions provided by an embodiment of the present invention, and the method may include:

[0047] Step S201, after the designated terminal receives an instruction to scan the questions, call the camera of the designated terminal.

[0048] Generally, the interface of the question-scanning application program provides a designated button to start taking photos. When the user clicks this button (it can also be triggered by voice, fingerprint, gesture or physical button), it is equivalent to sending an instruction to execute the question-scanning.

[0049] Optionally, the process of invoking the camera of the specified terminal may include:

[0050] Obtain the number of rear cameras of the specified terminal;

[0051] If the specified terminal has only one rear camera, then select this camera as the preferred camera; if the specified terminal has more than two rear cameras...

Embodiment 2

[0072] Such as image 3 As shown, it is a schematic flowchart of a method for taking photos when scanning questions provided by an embodiment of the present invention, and the method may include:

[0073] Step S301, calling the camera of the designated terminal after the designated terminal receives the command to scan the questions;

[0074] Step S302, adjusting the photographing parameters of the camera according to a preset adjustment method, so as to reduce information not related to text recognition;

[0075] Step S303, after the specified terminal receives the instruction to take pictures, control the camera to take pictures according to the adjusted picture parameters, and use the pictures taken as the original pictures for text recognition during question scanning.

[0076] Wherein, step S301 is the same as step S201 in the first embodiment, and step S303 is the same as step S203 in the first embodiment. For details, please refer to the description in the first embodi...

Embodiment 3

[0091] Such as Figure 4 As shown, it is a schematic block diagram of a device for taking photos when scanning questions provided by an embodiment of the present invention, and the device may include:

[0092] The calling module 401 is used to call the camera of the designated terminal after the designated terminal receives an instruction to perform scanning;

[0093] An adjustment module 402, configured to adjust the photographing parameters of the camera according to a preset adjustment method, so as to reduce information unrelated to text recognition;

[0094] The photographing module 403 is configured to control the camera to photograph photographs according to the adjusted photographing parameters after the designated terminal receives an instruction to perform photographing, and use the photographs obtained as original photographs for text recognition during question scanning ;

[0095] The adjustment module 402 includes:

[0096] The first adjustment unit 4021 is confi...

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Abstract

The invention belongs to the technical field of image processing and particularly relates to a method, device and terminal device for photographing a picture when examination questions are scanned. The method comprises the steps of calling a camera of an appointed terminal after the appointed terminal receives an instruction of scanning the examination questions; adjusting a photographing parameter of the camera in a preset adjustment mode, thereby reducing the information unrelated to text identification; and controlling the camera to photograph the picture according to the adjusted photographing parameter after the appointed terminal receives a photographing instruction and taking the photographed picture as an original picture for text identification when the examination questions are scanned, wherein the step of adjusting the photographing parameter of the camera in the preset adjustment mode comprises the sub-step of reducing resolution of the camera to a preset first value. Through application of the invention, in a picture photographing phase, the photographing parameter of the camera is adjusted, so information unrelated to text identification is reduced, and the text extraction speed is effectively accelerated.

Description

technical field [0001] The invention belongs to the technical field of image processing, and in particular relates to a method, device and terminal equipment for taking pictures when scanning questions. Background technique [0002] At present, all kinds of question-scanning applications are becoming more and more popular among students. figure 1 Shown is the general processing process of the scanning application: the first step is to take the original photo through the camera of the terminal such as mobile phone or tablet; the second step is to preprocess the original photo for text recognition; the third step is to process the The final photo is recognized for text, and the text is output; the fourth step is to search according to the text; the fifth step is to feed back the search results to the user. [0003] Because the scanning application needs to use the default camera mode of the terminal's built-in camera to take photos, and the photos taken by this default camera...

Claims

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Application Information

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IPC IPC(8): H04N5/232
CPCH04N23/62H04N23/667H04N23/80
Inventor 周绍华
Owner GUANGDONG XIAOTIANCAI TECH CO LTD
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