CN105956555A - Title photographing and searching method and device - Google Patents
Title photographing and searching method and device Download PDFInfo
- Publication number
- CN105956555A CN105956555A CN201610286593.1A CN201610286593A CN105956555A CN 105956555 A CN105956555 A CN 105956555A CN 201610286593 A CN201610286593 A CN 201610286593A CN 105956555 A CN105956555 A CN 105956555A
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- Prior art keywords
- image
- exercise question
- photographic head
- light
- topic
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/40—Document-oriented image-based pattern recognition
- G06V30/41—Analysis of document content
- G06V30/414—Extracting the geometrical structure, e.g. layout tree; Block segmentation, e.g. bounding boxes for graphics or text
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Computer Graphics (AREA)
- Geometry (AREA)
- Artificial Intelligence (AREA)
- Data Mining & Analysis (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
The invention is suitable for the electronic terminal technical field, and discloses a title photographing and searching method and device. The method comprises the following steps starting a camera, and a light emitting device so as to project the light emitted by the light emitting device on the shooting main body of the camera; clipping the title image where light projection points of the light emitting device are located in the image shot by the camera; and completing title searching based on the title image to obtain the answer to the title. The method determines the position of a title in an image through light projection points so as to allow a terminal background to automatically complete title image clipping, thereby improving title photographing and searching operation efficiency.
Description
Technical field
The invention belongs to electric terminal technical field, particularly relating to takes pictures searches the method and device of topic.
Background technology
At present, a lot of e-education products on the market all possess to take pictures searches the function of topic, and user is by manipulation
The photographic head of terminal is taken pictures facing to the exercise question on paper, completes to take pictures and show the picture of shooting in terminal
Afterwards, user selects frame by show in operation control terminal interface, intercepts the topic needing to search for answer in picture
Mesh, so, terminal by selecting truncated picture regional analysis in frame go out the item content and upload, thus
Completing takes pictures searches the function of topic.
But, in the prior art, user needs to adjust this size selecting frame by contact action and movement should
Select frame to suitable position, so that this selects frame just to surround needs the exercise question of search, thus complete exercise question
Sectional drawing, mode of operation is relative complex, and operating efficiency is low.
Summary of the invention
In view of this, embodiments providing takes pictures searches the method and device of topic, to solve existing bat
Need user to manually adjust to select the size and location of frame according to searching topic function, the problem that operating efficiency is low.
First aspect, it is provided that a kind of method searching topic of taking pictures, including:
Start photographic head, and start light emitting devices, so that the light that described light emitting devices sends is incident upon institute
State in the shooting main body of photographic head；
The exercise question that the light incident point of described light emitting devices is positioned at is intercepted in the image that described photographic head shoots
Image；
Complete to search topic based on described exercise question image, get the answer of described exercise question.
Second aspect, it is provided that a kind of taking pictures searches the device of topic, including:
Start unit, is used for starting photographic head, and starts light emitting devices, so that described light emitting devices is sent out
The light gone out is incident upon in the shooting main body of described photographic head；
Interception unit, for intercepting the light projection of described light emitting devices in the image that described photographic head shoots
The exercise question image that point is positioned at；
Search topic unit, for completing to search topic based on described exercise question image, get the answer of described exercise question.
In embodiments of the present invention, determine exercise question position in the picture by light incident point, thus by end
End backstage is automatically performed the intercepting to exercise question image, and improve takes pictures searches the operating efficiency of topic.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, below will be to embodiment or existing skill
In art description, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only
It is only some embodiments of the present invention, for those of ordinary skill in the art, is not paying creative labor
On the premise of dynamic property, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the flowchart of the method searching topic of taking pictures that the embodiment of the present invention provides；
Fig. 2 be the embodiment of the present invention provide take pictures search topic method S102 implement flow chart；
Fig. 3 be the embodiment of the present invention provide take pictures search topic method S201 implement flow chart；
Fig. 4 be the embodiment of the present invention provide take pictures search topic method S103 implement flow chart；
Fig. 5 is the structured flowchart of the device searching topic of taking pictures that the embodiment of the present invention provides.
Detailed description of the invention
In below describing, in order to illustrate rather than in order to limit, it is proposed that such as particular system structure, technology
Etc detail, in order to thoroughly understand the embodiment of the present invention.But, those skilled in the art should
Clear, the other embodiments do not have these details can also realize the present invention.In other situation,
Omit the detailed description to well-known system, device, circuit and method, in order to avoid unnecessary details
Hinder description of the invention.
In embodiments of the present invention, start photographic head, and start light emitting devices, so that described light emission dress
Put the light sent to be incident upon in the shooting main body of described photographic head；The image that described photographic head shoots intercepts
The exercise question image that the light incident point of described light emitting devices is positioned at；Complete to search topic based on described exercise question image,
Get the answer of described exercise question.
In order to technical solutions according to the invention are described, illustrate below by specific embodiment.
What Fig. 1 showed that the embodiment of the present invention provides take pictures search topic method realize flow process, details are as follows:
In S101, start photographic head, and start light emitting devices, so that described light emitting devices sends
Light be incident upon in the shooting main body of described photographic head.
Take pictures and search the realization of topic function and complete exercise question is taken pictures firstly the need of by photographic head, real in the present invention
Execute in example, start photographic head, so that the exercise question on paper is shot by manipulation photographic head by user.This
Outward, in embodiments of the present invention, also one light emitting devices, this light can be set in the adjacent domain of photographic head
The light that discharger is launched includes but not limited to infrared light, laser etc., so, and this light emitting devices
The light sent can be incident upon in the shooting main body of photographic head, so that can show in the image of photographic head shooting
This light emitting devices light incident point on paper.
In S102, the image that described photographic head shoots intercepts the light incident point of described light emitting devices
The exercise question image being positioned at.
During the realization searching topic function of taking pictures, user is allowed to photograph needs at manipulation photographic head and gets
Before the item content of answer, need first to adjust the light emission angle of light emitting devices, so that light emitting devices
The light sent is incident upon to be needed to get on the exercise question of answer, so, and meeting in the image of photographic head shooting
The light incident point of this light emitting devices occurs, comes exercise question image based on this position in the picture, light incident point
Intercept.Specifically, as shown in Figure 2:
In S201, the image that described photographic head shoots positions described smooth incident point.
One piece of higher pixel region of continuous print brightness, or table can be shown as in the picture due to light incident point
It is now that (the projection result of such as infrared light presents red one piece of pixel region possessing particular color value connected
Color pixel), therefore, it can one or more pixel characteristic above-mentioned presented by light incident point,
The image of photographic head shooting positions light incident point.
As one embodiment of the present of invention, S201 can also realize by the way of shown in Fig. 3:
In S301, obtain the cursor graphic preset.
In embodiments of the present invention, the launch hole of given shape can be set in light emitting devices, such as ten
Word, circle, the launch hole of rhombus, then, in the image of photographic head shooting, light incident point also can present accordingly
Shape, therefore, firstly the need of getting default cursor graphic in S301, this cursor graphic be light throw
The figure that exit point should present.
In S302, the image that described photographic head shoots is searched the light matched with described cursor graphic
Block.
In S303, orientate the light block found as described smooth incident point.
In embodiments of the present invention, by the pixel in analysis diagram picture, search in the picture and there is specific pixel
One piece of contiguous pixels region of characteristic, this region is the light block that light incident point is presented in the picture, and
By form fit, determine that the shape of this light block is identical with the shape of the cursor graphic preset or approximation, thus
Determine that this light block is light incident point, complete the location in light incident point.
In S202, by image analysis, determine the regional edge of the text block that described smooth incident point is positioned at
Boundary.
In S203, carry out image interception based on described zone boundary, to obtain described exercise question image.
In embodiments of the present invention, after completing location, light incident point in the picture, light incident point institute position is determined
In the zone boundary of text block, wherein, text block is user and wishes to search the item content of topic.Due to
In most of the cases, in the image of shooting, the pixel color of textual portions is black, the picture of paper part
Element color is white, therefore can distinguish the text in image by analysis pixel color, and by analyzing
The line space of text or the paragraph format of text determine the zone boundary of exercise question, thus intercept out exercise question
Image.
Additionally, as one embodiment of the present of invention, if by image analysis, parsing described smooth incident point
It is positioned at the non-textual block in the image of described photographic head shooting, generates information, so that user is according to described
Information re-executes action of taking pictures.
Such as, if light incident point has been incident upon the blank space of paper, then generate information, prompting user's weight
New execution once photo taking action, so that light incident point is positioned at title field.
In S103, complete to search topic based on described exercise question image, get the answer of described exercise question.
In embodiments of the present invention, after intercepting out exercise question image, by optical character recognition (Optical
Character Recognition, OCR) identify the word in exercise question image, and generate according to recognition result
The exercise question of text formatting, thus in the exam pool of server background, match this exercise question, get this exercise question
Answer, to present to user.
Further, S103 can realize by the way of shown in Fig. 4:
S401, shows described exercise question image, so that user refers to according to the described exercise question image input validation of display
Order or cancellation instruction.
S402, if described confirmation instruction input being detected, completing to search topic based on described exercise question image, getting
The answer of described exercise question.
In the embodiment shown in fig. 4, after intercepting out exercise question image, show this exercise question image, in order to user is true
Recognize the correctness of exercise question image interception, only after user confirms and have input confirmation instruction, just with service
Device backstage communicates, and performs to search topic, to ensure the correctness of the item content.
In embodiments of the present invention, determine exercise question position in the picture by light incident point, thus by end
End backstage is automatically performed the intercepting to exercise question image, and improve takes pictures searches the operating efficiency of topic.
Should be understood that in above-described embodiment, the size of the sequence number of each step is not meant to the priority of execution sequence,
The execution sequence of each process should determine with its function and internal logic, and should be to the enforcement of the embodiment of the present invention
Process constitutes any restriction.
The method searching topic corresponding to taking pictures described in foregoing embodiments, Fig. 5 shows that the embodiment of the present invention provides
The structured flowchart of the device searching topic of taking pictures, described in take pictures search the device of topic can be built in terminal unit or
The unit that software unit, hardware cell or soft or hard in the application system of terminal unit combines.In order to just
In explanation, illustrate only part related to the present embodiment.
With reference to Fig. 5, this device includes:
Start unit 51, starts photographic head, and starts light emitting devices, so that described light emitting devices sends
Light be incident upon in the shooting main body of described photographic head；
Interception unit 52, intercepts the light incident point of described light emitting devices in the image that described photographic head shoots
The exercise question image being positioned at；
Search topic unit 53, complete to search topic based on described exercise question image, get the answer of described exercise question.
Alternatively, described interception unit 52 includes:
Locator unit, positions described smooth incident point in the image that described photographic head shoots；
Determine subelement, by image analysis, determine the regional edge of the text block that described smooth incident point is positioned at
Boundary；
Intercept subelement, carry out image interception based on described zone boundary, to obtain described exercise question image.
Alternatively, described locator unit specifically for:
Obtain the cursor graphic preset；
The light block matched with described cursor graphic is searched in the image that described photographic head shoots；
Orientate the light block found as described smooth incident point.
Alternatively, described device also includes:
Tip element, if by image analysis, parses described smooth incident point and is positioned at the shooting of described photographic head
Non-textual block in image, generates information, takes pictures so that user re-executes according to described information
Action.
Alternatively, search topic unit 53 described in include:
Display subelement, is used for showing described exercise question image, so that user is according to the described exercise question image of display
Input validation instruction or cancellation instruction；
Search topic subelement, if for described confirmation instruction input being detected, completing to search based on described exercise question image
Topic, gets the answer of described exercise question.
Those skilled in the art is it can be understood that arrive, for convenience of description and succinctly, only more than
State each functional unit, the division of module is illustrated, in actual application, and can be as desired by upper
State function distribution to be completed by different functional units, module, will the internal structure of described device be divided into not
Same functional unit or module, to complete all or part of function described above.Each merit in embodiment
Energy unit, module can be integrated in a processing unit, it is also possible to be that unit is individually physically present,
Can also two or more unit integrated in a unit, above-mentioned integrated unit both can use firmly
The form of part realizes, it would however also be possible to employ the form of SFU software functional unit realizes.It addition, each functional unit, mould
The specific name of block, also only to facilitate mutually distinguish, is not limited to the protection domain of the application.On
State the specific works process of unit in system, module, be referred to the corresponding process in preceding method embodiment,
Do not repeat them here.
Those of ordinary skill in the art are it is to be appreciated that combine respectively showing of the embodiments described herein description
The unit of example and algorithm steps, it is possible to come with the combination of electronic hardware or computer software and electronic hardware
Realize.These functions perform with hardware or software mode actually, depend on the application-specific of technical scheme
And design constraint.Each specifically should being used for can be used different methods to realize by professional and technical personnel
Described function, but this realization is it is not considered that beyond the scope of this invention.
In embodiment provided by the present invention, it should be understood that disclosed apparatus and method, Ke Yitong
The mode crossing other realizes.Such as, system embodiment described above is only schematically, such as,
Described module or the division of unit, be only a kind of logic function and divide, actual can have when realizing other
Dividing mode, the most multiple unit or assembly can in conjunction with or be desirably integrated into another system, or some
Feature can be ignored, or does not performs.Another point, shown or discussed coupling each other or directly coupling
Close or communication connection can be the INDIRECT COUPLING by some interfaces, device or unit or communication connection, permissible
It is electrical, machinery or other form.
The described unit illustrated as separating component can be or may not be physically separate, as
The parts that unit shows can be or may not be physical location, i.e. may be located at a place, or
Can also be distributed on multiple NE.Can select therein some or all of according to the actual needs
Unit realizes the purpose of the present embodiment scheme.
It addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit,
Can also be that unit is individually physically present, it is also possible to two or more unit are integrated in a unit
In.Above-mentioned integrated unit both can realize to use the form of hardware, it would however also be possible to employ SFU software functional unit
Form realizes.
If described integrated unit realizes using the form of SFU software functional unit and as independent production marketing or
During use, can be stored in a computer read/write memory medium.Based on such understanding, the present invention
Part that prior art is contributed by the technical scheme of embodiment the most in other words or this technical scheme
Completely or partially can embody with the form of software product, this computer software product is stored in one and deposits
In storage media, including some instructions with so that a computer equipment (can be personal computer, service
Device, or the network equipment etc.) or processor (processor) perform each embodiment institute of the embodiment of the present invention
State all or part of step of method.And aforesaid storage medium includes: USB flash disk, portable hard drive, read-only deposit
Reservoir (ROM, Read-Only Memory), random access memory (RAM, Random Access
Memory), the various medium that can store program code such as magnetic disc or CD.
Embodiment described above only in order to technical scheme to be described, is not intended to limit；Although reference
The present invention has been described in detail by previous embodiment, it will be understood by those within the art that: its
Still the technical scheme described in foregoing embodiments can be modified, or special to wherein portion of techniques
Levy and carry out equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from this
The spirit and scope of bright each embodiment technical scheme, should be included within the scope of the present invention.
Claims (10)
1. the method searching topic of taking pictures, it is characterised in that including:
Start photographic head, and start light emitting devices, so that the light that described light emitting devices sends is incident upon institute
State in the shooting main body of photographic head；
The exercise question that the light incident point of described light emitting devices is positioned at is intercepted in the image that described photographic head shoots
Image；
Complete to search topic based on described exercise question image, get the answer of described exercise question.
2. the method for claim 1, it is characterised in that the described image shot at described photographic head
The exercise question image that the light incident point of the described light emitting devices of middle intercepting is positioned at includes:
Described smooth incident point is positioned in the image that described photographic head shoots；
By image analysis, determine the zone boundary of the text block that described smooth incident point is positioned at；
Image interception is carried out, to obtain described exercise question image based on described zone boundary.
3. method as claimed in claim 2, it is characterised in that the described image shot at described photographic head
Described smooth incident point, middle location includes:
Obtain the cursor graphic preset；
The light block matched with described cursor graphic is searched in the image that described photographic head shoots；
Orientate the light block found as described smooth incident point.
4. method as claimed in claim 2, it is characterised in that described method also includes:
If by image analysis, parse that described smooth incident point is positioned in the image of described photographic head shooting is non-
Text block, generates information, so that user re-executes, according to described information, action of taking pictures.
5. the method for claim 1, it is characterised in that described complete to search based on described exercise question image
Topic, the answer getting described exercise question includes:
Show described exercise question image so that user according to display described exercise question image input validation instruction or
Cancel instruction；
If described confirmation instruction input being detected, completing to search topic based on described exercise question image, getting described topic
Purpose answer.
6. take pictures and search the device of topic for one kind, it is characterised in that including:
Start unit, is used for starting photographic head, and starts light emitting devices, so that described light emitting devices is sent out
The light gone out is incident upon in the shooting main body of described photographic head；
Interception unit, for intercepting the light projection of described light emitting devices in the image that described photographic head shoots
The exercise question image that point is positioned at；
Search topic unit, for completing to search topic based on described exercise question image, get the answer of described exercise question.
7. device as claimed in claim 6, it is characterised in that described interception unit includes:
Locator unit, for positioning described smooth incident point in the image that described photographic head shoots；
Determine subelement, for by image analysis, determine the district of the text block that described smooth incident point is positioned at
Border, territory；
Intercept subelement, for carrying out image interception based on described zone boundary, to obtain described exercise question image.
8. device as claimed in claim 7, it is characterised in that described locator unit specifically for:
Obtain the cursor graphic preset；
The light block matched with described cursor graphic is searched in the image that described photographic head shoots；
Orientate the light block found as described smooth incident point.
9. device as claimed in claim 7, it is characterised in that described device also includes:
Tip element, if for by image analysis, parsing described smooth incident point and be positioned at the bat of described photographic head
Non-textual block in the image taken the photograph, generates information, so that user re-executes according to described information
Take pictures action.
10. device as claimed in claim 6, it is characterised in that described in search topic unit and include:
Display subelement, is used for showing described exercise question image, so that user is according to the described exercise question image of display
Input validation instruction or cancellation instruction；
Search topic subelement, if for described confirmation instruction input being detected, completing to search based on described exercise question image
Topic, gets the answer of described exercise question.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610286593.1A CN105956555A (en) | 2016-04-29 | 2016-04-29 | Title photographing and searching method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610286593.1A CN105956555A (en) | 2016-04-29 | 2016-04-29 | Title photographing and searching method and device |
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| CN105956555A true CN105956555A (en) | 2016-09-21 |
Family
ID=56913641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610286593.1A Pending CN105956555A (en) | 2016-04-29 | 2016-04-29 | Title photographing and searching method and device |
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| CN106469308A (en) * | 2016-10-13 | 2017-03-01 | 广东小天才科技有限公司 | A kind of method and apparatus of efficient exercise question search |
| CN108197620A (en) * | 2018-01-23 | 2018-06-22 | 广东小天才科技有限公司 | It is a kind of that topic method, system and hand-held photographing device are searched based on taking pictures for eyes positioning |
| CN108197141A (en) * | 2017-11-24 | 2018-06-22 | 广东小天才科技有限公司 | Topic method, apparatus, mobile terminal and storage medium are searched in taking pictures for mobile terminal |
| CN111182281A (en) * | 2019-11-19 | 2020-05-19 | 广东小天才科技有限公司 | Projection method, electronic equipment and storage medium |
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| CN111182281A (en) * | 2019-11-19 | 2020-05-19 | 广东小天才科技有限公司 | Projection method, electronic equipment and storage medium |
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Application publication date: 20160921 |