CN105426518A - Title photographing and searching method and system - Google Patents
Title photographing and searching method and system Download PDFInfo
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- CN105426518A CN105426518A CN201510884066.6A CN201510884066A CN105426518A CN 105426518 A CN105426518 A CN 105426518A CN 201510884066 A CN201510884066 A CN 201510884066A CN 105426518 A CN105426518 A CN 105426518A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/50—Information retrieval; Database structures therefor; File system structures therefor of still image data
- G06F16/58—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
- G06F16/583—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually using metadata automatically derived from the content
- G06F16/5846—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually using metadata automatically derived from the content using extracted text
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/50—Information retrieval; Database structures therefor; File system structures therefor of still image data
- G06F16/58—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
- G06F16/583—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually using metadata automatically derived from the content
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/95—Retrieval from the web
- G06F16/951—Indexing; Web crawling techniques
Abstract
The invention discloses a title photographing and searching method and system. The method comprises the following steps: photographing a title to obtain a picture; calculating the angle between the title placing plane and the camera lens plane; determining that the angle is greater than or equal to the preset threshold value, and conducting deflection correction on the picture; conducting title searching by utilizing the picture subjected to deflection correction. When the title is photographed, whether the photographing angle is reasonable or not is detected by calculation of the angle between the title placing plane and the camera lens plane, when the angle is greater than the preset threshold value, deflection correction is conducted on the picture, and the picture subjected to deflection correction is utilized to conduct title searching, so that the picture recognition efficiency can be improved, and the title searching accuracy can also be improved.
Description
Technical field
The present invention relates to intelligence and search topic field, particularly relate to a kind of taking pictures and search the method and system of topic.
Background technology
Much search the software of topic class in the market, the process of searching topic of taking pictures is fairly simple, and just the simple camera that utilizes is taken pictures, then photo is utilized to go to carry out searching topic, if the angular deviation of photograph taking is comparatively large, then the topic information in photo is not easy to be identified, and the accuracy rate of searching topic is not high.
Summary of the invention
The object of the present invention is to provide a kind of taking pictures to search the method and system of topic, the present invention is intended to solve the picture caused because photo angle is not good and is not easily identified, searches the not high problem of topic accuracy rate.
For reaching this object, the present invention by the following technical solutions:
Take pictures and search a method for topic, comprising:
Exercise question is taken pictures, obtains picture;
Calculate the angle between exercise question holding plane and camera lens plane;
Confirm that described angle is more than or equal to preset threshold value, deflection is carried out to described picture and corrects;
Picture after utilizing deflection to correct carries out searching topic.
Wherein, described preset threshold value is 5 degree.
Wherein, described exercise question to be taken pictures, be specially: take pictures in the center that described camera lens aims at described exercise question.
Wherein, described to described picture carry out deflection correct, comprising: with the center of described picture for rotation center, by angle described in picture rotation.
Wherein, the picture after described utilization deflection rectification carries out searching topic, comprising:
Automatic cutting is carried out to described picture;
Determine that the residence time in screen of the picture after cutting is more than or equal to preset time;
Identify the word of the picture after cutting, use described word to carry out searching topic.
Described cutting is carried out to described picture after, also comprise:
Before the described preset time of arrival, receive screen triggering command, enter manual cutting picture interface;
Receive and search topic instruction, identify the word of picture, use described word to carry out searching topic.
The described word of described use carries out searching topic, comprising:
By internet, described word is dealt into long-range exam pool server as searching topic information; What receive that long-range exam pool server returns searches topic result.
Wherein, the described angle of described confirmation comprises after being more than or equal to preset threshold value: in camera screen, show the prompting message that described angle is more than or equal to preset threshold value.
Take pictures and search a system for topic, comprising:
Photo module, for taking pictures to exercise question, obtains picture;
Angle calculation module, for calculating the angle between exercise question holding plane and camera lens plane;
Rectification module, for confirming that described angle is more than or equal to preset threshold value, carrying out deflection to described picture and correcting;
Search topic module, the picture after correcting for utilizing deflection carries out searching topic.
Described photo module, taking pictures in the center aiming at described exercise question specifically for camera lens, obtains picture;
Described rectification module, specifically for confirming that described angle is more than or equal to preset threshold value, with the center of described picture for rotation center, by angle described in picture rotation;
Describedly search topic module, comprising:
Automatic cutting module, for carrying out automatic cutting to described picture;
Judge module, for determining that the residence time in screen of the picture after cutting is more than or equal to preset time;
First searches topic module, for identifying the word of the picture after cutting, uses described word to carry out searching topic;
Manual cutting module, for before the described preset time of arrival, receives screen triggering command, enters manual cutting picture interface;
Second searches topic module, searches topic instruction for receiving, and identifies the word of picture, uses described word to carry out searching topic.
Beneficial effect of the present invention is: the invention discloses a kind of taking pictures and search the method and system of topic.The method comprises takes pictures to exercise question, obtains picture; Calculate the angle between exercise question holding plane and camera lens plane; Confirm that described angle is more than or equal to preset threshold value, deflection is carried out to described picture and corrects; Picture after utilizing deflection to correct carries out searching topic.The present invention is when taking pictures to exercise question, whether rationally photo angle is detected by the angle calculated between exercise question holding plane and camera lens plane, when described angle is greater than preset threshold value, rotational correction is carried out to picture, picture after utilizing rotational correction carries out searching the recognition efficiency that topic can improve picture, improves the accuracy rate of searching topic simultaneously.
Accompanying drawing explanation
Fig. 1 is the method flow diagram of a kind of method of searching topic of taking pictures that the embodiment of the present invention one provides.
Fig. 2 is the method flow diagram of a kind of method of searching topic of taking pictures that the embodiment of the present invention two provides.
Fig. 3 is the block diagram of a kind of system of searching topic of taking pictures that the embodiment of the present invention three provides.
Fig. 4 is the block diagram of a kind of system of searching topic of taking pictures that the embodiment of the present invention four provides.
Embodiment
Technical scheme of the present invention is further illustrated by embodiment below in conjunction with accompanying drawing.
Embodiment one
As shown in Figure 1, the present embodiment provides a kind of taking pictures to search the method for topic, comprising:
S101, takes pictures to exercise question, obtains picture.
Concrete, taking pictures in the center that camera lens aims at described exercise question, obtains the picture of examination question, for searching topic.
S102, calculates the angle between exercise question holding plane and camera lens plane.
In the present embodiment, described exercise question is generally in examination question basis or textbook, topic basis or textbook are placed in horizontal table top, gravity sensor is provided with in camera, the angle between camera plane and surface level can be calculated, when camera is taken pictures to the exercise question on surface level, just can calculate the angle between exercise question plane and camera plane.
S103, confirms that described angle is more than or equal to preset threshold value, carries out deflection correct described picture.
Concrete, with the center of described picture for rotation center, by angle described in picture rotation.
Preferably, described threshold value is 5 degree, when described angle is greater than 5 degree time, illustrates that the shooting angle of camera has deviation, makes some distortion of exercise question picture taken, carries out rotational correction, better to search topic by picture to described picture.
S104, the picture after utilizing deflection to correct carries out searching topic.
A kind of the taking pictures that the present embodiment provides searches the method for topic, when taking pictures to exercise question, whether rationally photo angle is detected by the angle calculated between exercise question holding plane and camera lens plane, when described angle is greater than preset threshold value, rotational correction is carried out to picture, picture after utilizing rotational correction carries out searching the recognition efficiency that topic can improve picture, improves the accuracy rate of searching topic simultaneously.
Embodiment two
On the basis of embodiment one, embodiment adds and concrete search topic step.
As shown in Figure 2, provide a kind of taking pictures to search the method for topic, comprising:
S210, takes pictures to exercise question, obtains picture.
Concrete, taking pictures in the center that camera lens aims at described exercise question, obtains the picture of examination question, for searching topic.
S220, calculates the angle between exercise question holding plane and camera lens plane.
In the present embodiment, described exercise question is generally in examination question basis or textbook, topic basis or textbook are placed in horizontal table top, gravity sensor is provided with in camera, the angle between camera plane and surface level can be calculated, when camera is taken pictures to the exercise question on surface level, just can calculate the angle between exercise question plane and camera plane.
S230, confirms that described angle is more than or equal to preset threshold value, carries out deflection correct described picture.
Concrete, with the center of described picture for rotation center, by angle described in picture rotation.
Preferably, described threshold value is 5 degree, when described angle is greater than 5 degree time, illustrates that the shooting angle of camera has deviation, makes some distortion of exercise question picture taken, carries out rotational correction, better to search topic by picture to described picture.
In the present embodiment, after the described angle of described confirmation is more than or equal to preset threshold value, camera screen shows the prompting message that described angle is more than or equal to preset threshold value; Making user just can adjust the photo angle of camera according to prompting message when taking pictures like this, taking the good exercise question picture of effect.
S241, carries out automatic cutting to described picture.
In the present embodiment, blank parts may be left or be not the information of exercise question in four limits when shooting through the picture after rotational correction, need it to crop.In prior art, very major part needs dependence user to carry out manual operation, and some distortion of picture that user takes pictures, and carry out the picture of cutting, recognition effect is not very desirable at every turn.The embodiment of the present invention can realize automatic cutting, decreases the operation steps of user.
S242a, determines that the residence time in screen of the picture after cutting is more than or equal to preset time.
S243a, identifies the word of the picture after cutting, uses described word to carry out searching topic.
In the present embodiment, in the process of automatic cutting, deviation may be there is, the picture of cutting is not very desirable, and the complete rear page of cutting can stay for some time, if during this period, user is unsatisfied with, and directly can carry out manual cutting by button click, utilize picture recognition and automatic search after cutting is complete.
S242b, before the described preset time of arrival, receives screen triggering command, enters manual cutting picture interface.
S243b, receives and searches topic instruction, identifies the word of picture, uses described word to carry out searching topic.
Concrete, when user completes manual cutting or user feels not need cutting, just can enter Text region, then utilize word to carry out searching topic.
In the present embodiment, step S242a, S243a and step S242b, S243b select one when implementing and carry out.
In the present embodiment, the described word of described use carries out searching topic and comprises: by internet, described word is dealt into long-range exam pool server as searching topic information; What receive that long-range exam pool server returns searches topic result.
A kind of the taking pictures that the present embodiment provides searches the method for topic, when taking pictures to exercise question, whether rationally photo angle is detected by the angle calculated between exercise question holding plane and camera lens plane, when described angle is greater than preset threshold value, rotational correction is carried out to picture, picture after utilizing rotational correction carries out searching the recognition efficiency that topic can improve picture, improves the accuracy rate of searching topic simultaneously.
Embodiment three
The present embodiment is corresponding with embodiment one, and not detailed content please refer to embodiment one.
As shown in Figure 3, the present embodiment provides a kind of taking pictures to search the system of topic, comprising:
Photo module 310, for taking pictures to exercise question, obtains picture.
Angle calculation module 320, for calculating the angle between exercise question holding plane and camera lens plane.
Rectification module 330, for confirming that described angle is more than or equal to preset threshold value, carrying out deflection to described picture and correcting.
Search topic module 340, the picture after correcting for utilizing deflection carries out searching topic.
In the present embodiment, each module cooperative work above, exercise question is taken pictures, whether rationally photo angle is detected by the angle calculated between exercise question holding plane and camera lens plane, when described angle is greater than preset threshold value, carry out rotational correction to picture, the picture after utilizing rotational correction carries out searching the recognition efficiency that topic can improve picture, improves the accuracy rate of searching topic simultaneously.
Embodiment four
The present embodiment is corresponding with embodiment two, and not detailed content please refer to embodiment two.
As shown in Figure 4, the present embodiment provides a kind of taking pictures to search the system of topic, comprising:
Photo module 410, for taking pictures to exercise question, obtains picture.
Angle calculation module 420, for calculating the angle between exercise question holding plane and camera lens plane.
Rectification module 430, for confirming that described angle is more than or equal to preset threshold value, carrying out deflection to described picture and correcting.
Search topic module 440, the picture after correcting for utilizing deflection carries out searching topic.
Described topic module of searching comprises again:
Automatic cutting module 441, for carrying out automatic cutting to described picture;
Judge module 442a, for determining that the residence time in screen of the picture after cutting is more than or equal to preset time;
First searches topic module 443a, for identifying the word of the picture after cutting, uses described word to carry out searching topic;
Manual cutting module 442b, for before the described preset time of arrival, receives screen triggering command, enters manual cutting picture interface;
Second searches topic module 443b, searching topic instruction, identifying the word of picture, using described word to carry out searching topic for receiving.
Each module cooperative work in the present embodiment, exercise question is taken pictures, whether rationally photo angle is detected by the angle calculated between exercise question holding plane and camera lens plane, when described angle is greater than preset threshold value, rotational correction is carried out to picture, picture after utilizing rotational correction carries out searching the recognition efficiency that topic can improve picture, improves the accuracy rate of searching topic simultaneously.
Below know-why of the present invention is described in conjunction with specific embodiments.These describe just in order to explain principle of the present invention, and can not be interpreted as limiting the scope of the invention by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present invention, and these modes all will fall within protection scope of the present invention.
Claims (10)
1. take pictures and search a method for topic, it is characterized in that, comprising:
Exercise question is taken pictures, obtains picture;
Calculate the angle between exercise question holding plane and camera lens plane;
Confirm that described angle is more than or equal to preset threshold value, deflection is carried out to described picture and corrects;
Picture after utilizing deflection to correct carries out searching topic.
2. method according to claim 1, is characterized in that, describedly takes pictures to exercise question, is specially: take pictures in the center that described camera lens aims at described exercise question.
3. method according to claim 1, is characterized in that, described to described picture carry out deflection correct, comprising: with the center of described picture for rotation center, by angle described in picture rotation.
4. method according to claim 1, is characterized in that, the picture after described utilization deflection rectification carries out searching topic, comprising:
Automatic cutting is carried out to described picture;
Determine that the residence time in screen of the picture after cutting is more than or equal to preset time;
Identify the word of the picture after cutting, use described word to carry out searching topic.
5. method according to claim 4, is characterized in that, described cutting is carried out to described picture after, also comprise:
Before the described preset time of arrival, receive screen triggering command, enter manual cutting picture interface;
Receive and search topic instruction, identify the word of picture, use described word to carry out searching topic.
6. the method according to claim 4 or 5, is characterized in that, the described word of described use carries out searching topic, comprising:
By internet, described word is dealt into long-range exam pool server as searching topic information; What receive that long-range exam pool server returns searches topic result.
7. the method according to any one of claim 1-5, is characterized in that, the described angle of described confirmation comprises after being more than or equal to preset threshold value: in camera screen, show the prompting message that described angle is more than or equal to preset threshold value.
8. the method according to any one of claim 1-5, is characterized in that, described preset threshold value is 5 degree.
9. take pictures and search a system for topic, it is characterized in that, comprising:
Photo module, for taking pictures to exercise question, obtains picture;
Angle calculation module, for calculating the angle between exercise question holding plane and camera lens plane;
Rectification module, for confirming that described angle is more than or equal to preset threshold value, carrying out deflection to described picture and correcting;
Search topic module, the picture after correcting for utilizing deflection carries out searching topic.
10. system according to claim 9, is characterized in that:
Described photo module, taking pictures in the center aiming at described exercise question specifically for camera lens, obtains picture;
Described rectification module, specifically for confirming that described angle is more than or equal to preset threshold value, with the center of described picture for rotation center, by angle described in picture rotation;
Describedly search topic module, comprising:
Automatic cutting module, for carrying out automatic cutting to described picture;
Judge module, for determining that the residence time in screen of the picture after cutting is more than or equal to preset time;
First searches topic module, for identifying the word of the picture after cutting, uses described word to carry out searching topic;
Manual cutting module, for before the described preset time of arrival, receives screen triggering command, enters manual cutting picture interface;
Second searches topic module, searches topic instruction for receiving, and identifies the word of picture, uses described word to carry out searching topic.
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| CN201510884066.6A CN105426518A (en) | 2015-12-03 | 2015-12-03 | Title photographing and searching method and system |
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| CN106227334A (en) * | 2016-07-14 | 2016-12-14 | 广东小天才科技有限公司 | A kind of based on infrared mobile device control method and device, mobile device |
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| CN106326406A (en) * | 2016-08-22 | 2017-01-11 | 广东小天才科技有限公司 | Question searching method and device applied to electronic terminal |
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| CN106326406B (en) * | 2016-08-22 | 2020-07-21 | 广东小天才科技有限公司 | Question searching method and device applied to electronic terminal |
| CN106325522A (en) * | 2016-09-05 | 2017-01-11 | 广东小天才科技有限公司 | Method and device for adjusting cursor size of electronic terminal |
| CN107479906A (en) * | 2017-09-28 | 2017-12-15 | 电子科技大学 | cross-platform online education mobile terminal based on Cordova |
| CN107749200A (en) * | 2017-11-02 | 2018-03-02 | 深圳市奈瑞特科学技术有限公司 | The display methods and system that a kind of experimental principle is embodied |
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| CN108304562A (en) * | 2018-02-08 | 2018-07-20 | 广东小天才科技有限公司 | One kind searching topic method, searches topic device and intelligent terminal |
| CN109327657A (en) * | 2018-07-16 | 2019-02-12 | 广东小天才科技有限公司 | A kind of taking pictures based on camera searches topic method and private tutor's equipment |
| CN110413731A (en) * | 2019-07-12 | 2019-11-05 | 广东小天才科技有限公司 | Search topic method, apparatus, electronic equipment and storage medium |
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