CN107273402A - Method and device for searching test questions by using double cameras - Google Patents
Method and device for searching test questions by using double cameras Download PDFInfo
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- 230000015572 biosynthetic process Effects 0.000 claims abstract description 5
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 5
- 230000009977 dual effect Effects 0.000 claims description 22
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 238000000605 extraction Methods 0.000 claims description 2
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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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- 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
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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
- G06F16/90—Details of database functions independent of the retrieved data types
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Abstract
The invention is suitable for the technical field of computers, and provides a method and a device for searching test questions by using double cameras, wherein the method comprises the following steps: respectively acquiring a first image and a second image, wherein the first image is an image shot by a first camera, and the second image is an image shot by a second camera; calculating the similarity of the first image and the second image; and when the similarity is lower than the preset similarity, performing first synthesis operation on the first image and the second image to obtain a third image, and performing test question search according to the third image. According to the invention, two images are obtained through the double cameras, only a part of the two images are overlapped for the image which cannot be shot to obtain the complete test question content, the image of the complete test question content can be obtained by combining the two images, the test questions with more test question stem content can be shot completely, the searched keywords are completely reserved, and the searching efficiency and the searching precision are improved.
Description
Technical field
The invention belongs to field of computer technology, more particularly to a kind of method and device that examination question is searched for dual camera.
Background technology
Current user generally carries out acquisition figure of taking pictures when using terminal equipment carries out examination question search by single camera
Piece, examination question search is carried out according to image, but during taking pictures, is often occurred because stem is oversize, and content is too many, is shot
Image it is imperfect, cause to lack keyword when search examination question, influence search precision, search efficiency is relatively low.
The content of the invention
It is an object of the invention to provide a kind of method and device that examination question is searched for dual camera, it is intended to solves existing skill
In art when shooting examination question using single camera, it is impossible to obtain complete examination question image, cause content to lack, influence examination question search
As a result the problem of.
On the one hand, the invention provides a kind of method that examination question is searched for dual camera, methods described comprises the steps：
The first image and the second image are obtained respectively, and described first image is the image shot by the first camera, described
Second image is the image shot by second camera；
Calculate described first image and the similarity of the second image；
When the similarity is less than default similarity, described first image and the second image are subjected to the first synthesis and grasped
Make, obtain the 3rd image, and examination question search is carried out according to the 3rd image.
On the other hand, the invention provides a kind of device that examination question is searched for dual camera, described device includes：
Image acquisition unit, for obtaining the first image and the second image respectively, described first image is by the first shooting
The image that head is shot, second image is the image shot by second camera；
Similarity calculated, the similarity for calculating described first image and the second image；And
3rd picture search unit, for when the similarity is less than default similarity, by described first image and the
Two images carry out the first synthetic operation, obtain the 3rd image, and carry out examination question search according to the 3rd image.
The embodiment of the present invention obtains two images by dual camera, and the figure of complete contents of test question is obtained for that can shoot
Picture, two images are basically identical, obtain the image of complete contents of test question for that can not shoot, two images only some weight
It is folded, by being merged to two images, the image of complete contents of test question can be obtained, stem can intactly be shot by realizing
The more examination question of content, the complete keyword for remaining search, improves search efficiency and search precision.
Brief description of the drawings
Fig. 1 is the implementation process figure for the method that examination question is searched for dual camera that the embodiment of the present invention one is provided；
Fig. 2 is the implementation process figure for the method that examination question is searched for dual camera that the embodiment of the present invention two is provided；
Fig. 3 is the structural representation for the device that examination question is searched for dual camera that the embodiment of the present invention three is provided；And
Fig. 4 is the structural representation for the device that examination question is searched for dual camera that the embodiment of the present invention four is provided.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Implementing for the present invention is described in detail below in conjunction with specific embodiment：
Embodiment one：
Fig. 1 shows the implementation process figure for the method that examination question is searched for dual camera that the embodiment of the present invention one is provided, and is
It is easy to explanation, illustrate only the part related to the embodiment of the present invention, details are as follows：
In step S101, the first image and the second image are obtained respectively, and first image is to be shot by the first camera
Image, second image is the image that is shot by second camera.
In embodiments of the present invention, two cameras are set on the terminal device, when user runs into and needs to search for examination question,
Examination question is shot by two cameras, two cameras are adjusted by user to acquisition parameters, obtain two
Image, respectively the first image and the second image, wherein, the first image is the image shot by the first camera, second figure
As the image to be shot by second camera.
In step s 102, the similarity of the first image and the second image is calculated.
In embodiments of the present invention, because user is when shooting, meeting is according to the stem length of examination question, content length, to two
Individual camera carries out acquisition parameters adjustment, therefore, obtained the first image and the second image, and possibility is identical or differs or part
It is identical, in this regard, two images are carried out alignment processing by the similarity by calculating the first image and the second image.
In step s 103, when similarity is less than default similarity, the first image and the second image is carried out first and closed
Into operation, the 3rd image is obtained, and examination question search is carried out according to the 3rd image.
In embodiments of the present invention, when similarity is less than default similarity, two images is represent and are differed or portion
Split-phase is same, and the examination question stem content of search is more, it is necessary to distinguish fetching portion by two cameras needed for such case illustrates
Image could be shot completely, be less than the first image and the second image of default similarity, it is necessary to carry out the first conjunction for similarity
Into operation, the 3rd image is obtained, the 3rd image includes complete contents of test question, in order to extract complete key in search
Word, carries out precise search.
Further, the first image and the second image same section and difference section are extracted；
First image and the second image same section are merged, the difference section of the first image and the second image is entered
Row splicing, obtains the 3rd image.
Specifically, the first image and the second image of default similarity are less than for similarity, two images are represent not
Identical or part is identical, accordingly, it would be desirable to the first image and the second image same section and difference section are extracted, it is identical existing
During part, the first image and the second image same section are merged, the difference section of the first image and the second image is entered
Row splicing, obtains the 3rd image.
Further, the contents of test question in the 3rd image is identified, examination question search is carried out in exam pool according to contents of test question.
Specifically, the contents of test question in the 3rd image is identified, the contents of test question is the keyword of examination question stem, utilizes pass
Keyword carries out examination question search in examination question exam pool, is not only able to shorten search time, improves search efficiency, additionally it is possible to improves search
Accuracy.
In embodiments of the present invention, two images are obtained by dual camera, obtained for that can shoot in complete examination question
The image of appearance, two images are basically identical, and the image of complete contents of test question is obtained for that can not shoot, and two images only have one
Partly overlap, by being merged to two images, the image of complete contents of test question can be obtained, realizing intactly to clap
Take the photograph the more examination question of stem content, the complete keyword for remaining search improves search efficiency and search precision.
Embodiment two：
Fig. 2 shows the implementation process figure for the method that examination question is searched for dual camera that the embodiment of the present invention two is provided, and is
It is easy to explanation, illustrate only the part related to the embodiment of the present invention, details are as follows：
In step s 201, the first image and the second image are obtained respectively, and first image is to be shot by the first camera
Image, second image is the image that is shot by second camera.
In step S202, the similarity of the first image and the second image is calculated.
In step S203, when similarity is less than default similarity, the first image and the second image are carried out first and closed
Into operation, the 3rd image is obtained, and examination question search is carried out according to the 3rd image.
In embodiments of the present invention, step S201-S203 embodiment can be corresponded to reference to step in previous embodiment one
S101-S103 description, will not be repeated here.
In step S204, when similarity exceeds default similarity, the first image and the second image are carried out second and closed
Into operation, the 4th image is obtained, and examination question search is carried out according to the 4th image.
In embodiments of the present invention, when similarity exceeds default similarity, illustrate that the first image and the second image are basic
It is identical, in order to obtain the image that quality is higher, the second synthetic operation can be carried out to the first image and the second image, that is, will
Two images are overlapped one image of synthesis, obtain the 4th image.
Further, displacement vector is calculated according to the first image and the second image, and compensated, obtain the 4th image.
Specifically, in order to further improve picture quality, especially there is a situation where shake when shooting, the first image and
There is displacement vector in the image border of the second image, by calculating displacement vector, then edge is compensated, can obtain quality compared with
The 4th high image, so as to improve picture quality, is conducive to improving the search efficiency of examination question.
Further, for similarity higher the first image and the second image, the first image and the second figure can be obtained
The definition values of picture；By the higher image of definition values, the 4th image is used as.
In embodiments of the present invention, two images are obtained by dual camera, obtained for that can shoot in complete examination question
The image of appearance, two images are basically identical, and the image of complete contents of test question is obtained for that can not shoot, and two images only have one
Partly overlap, by being merged to two images, the image of complete contents of test question can be obtained, realizing intactly to clap
Take the photograph the more examination question of stem content, the complete keyword for remaining search improves search efficiency and search precision.
Can be with one of ordinary skill in the art will appreciate that realizing that all or part of step in above-described embodiment method is
The hardware of correlation is instructed to complete by program, described program can be stored in a computer read/write memory medium,
Described storage medium, such as ROM/RAM, disk, CD.
Embodiment three：
Fig. 3 shows the structural representation for the device that examination question is searched for dual camera that the embodiment of the present invention three is provided, and is
It is easy to explanation, illustrate only the part related to the embodiment of the present invention.In embodiments of the present invention, searched for and tried with dual camera
The device of topic includes：Image acquisition unit 31, the picture search unit 33 of similarity calculated 32 and the 3rd, wherein：
Image acquisition unit 31, for obtaining the first image and the second image respectively, first image is by the first shooting
The image that head is shot, second image is the image shot by second camera.
In embodiments of the present invention, two cameras are set on the terminal device, when user runs into and needs to search for examination question,
Examination question is shot by two cameras, two cameras are adjusted by user to acquisition parameters, obtain two
Image, respectively the first image and the second image, wherein, the first image is the image shot by the first camera, second figure
As the image to be shot by second camera.
Similarity calculated 32, the similarity for calculating the first image and the second image.
In embodiments of the present invention, because user is when shooting, meeting is according to the stem length of examination question, content length, to two
Individual camera carries out acquisition parameters adjustment, therefore, obtained the first image and the second image, and possibility is identical or differs or part
It is identical, in this regard, two images are carried out alignment processing by the similarity by calculating the first image and the second image.
3rd picture search unit 33, for when similarity is less than default similarity, by the first image and the second image
The first synthetic operation is carried out, the 3rd image is obtained, and examination question search is carried out according to the 3rd image.
In embodiments of the present invention, when similarity is less than default similarity, two images is represent and are differed or portion
Split-phase is same, and the examination question stem content of search is more, it is necessary to distinguish fetching portion by two cameras needed for such case illustrates
Image could be shot completely, be less than the first image and the second image of default similarity, it is necessary to carry out the first conjunction for similarity
Into operation, the 3rd image is obtained, the 3rd image includes complete contents of test question, in order to extract complete key in search
Word, carries out precise search.
Further, the 3rd picture search unit 33, including：
Extraction unit 331, for extracting the first image and the second image same section and difference section；
3rd graphics processing unit 332, for the first image and the second image same section to be merged, by the first figure
The difference section of picture and the second image is spliced, and obtains the 3rd image.
Specifically, the first image and the second image of default similarity are less than for similarity, two images are represent not
Identical or part is identical, accordingly, it would be desirable to the first image and the second image same section and difference section are extracted, it is identical existing
During part, the first image and the second image same section are merged, the difference section of the first image and the second image is entered
Row splicing, obtains the 3rd image.
Further, the 3rd picture search unit 33, in addition to：
Content recognition unit 333, for identifying the contents of test question in the 3rd image, enters according to contents of test question in exam pool
Row examination question is searched for.
Specifically, the contents of test question in the 3rd image is identified, the contents of test question is the keyword of examination question stem, utilizes pass
Keyword carries out examination question search in examination question exam pool, is not only able to shorten search time, improves search efficiency, additionally it is possible to improves search
Accuracy.
In embodiments of the present invention, two images are obtained by dual camera, obtained for that can shoot in complete examination question
The image of appearance, two images are basically identical, and the image of complete contents of test question is obtained for that can not shoot, and two images only have one
Partly overlap, by being merged to two images, the image of complete contents of test question can be obtained, realizing intactly to clap
Take the photograph the more examination question of stem content, the complete keyword for remaining search improves search efficiency and search precision.
Example IV：
Fig. 4 shows the structural representation for the device that examination question is searched for dual camera that the embodiment of the present invention four is provided, and is
It is easy to explanation, illustrate only the part related to the embodiment of the present invention.In embodiments of the present invention, searched for and tried with dual camera
The device of topic includes：
Image acquisition unit 41, for obtaining the first image and the second image respectively, first image is by the first shooting
The image that head is shot, second image is the image shot by second camera.
Similarity calculated 42, the similarity for calculating the first image and the second image.
3rd picture search unit 43, for when similarity is less than default similarity, by the first image and the second image
The first synthetic operation is carried out, the 3rd image is obtained, and examination question search is carried out according to the 3rd image.
4th picture search unit 44, for when similarity exceeds default similarity, by the first image and the second image
The second synthetic operation is carried out, the 4th image is obtained, and examination question search is carried out according to the 4th image.
In embodiments of the present invention, when similarity exceeds default similarity, illustrate that the first image and the second image are basic
It is identical, in order to obtain the image that quality is higher, the second synthetic operation can be carried out to the first image and the second image, that is, will
Two images are overlapped one image of synthesis, obtain the 4th image.
Further, the 4th picture search unit 44, including：
4th graphics processing unit 441, for calculating displacement vector according to the first image and the second image, and is mended
Repay, obtain the 4th image.
Specifically, in order to further improve picture quality, especially there is a situation where shake when shooting, the first image and
There is displacement vector in the image border of the second image, by calculating displacement vector, then edge is compensated, can obtain quality compared with
The 4th high image, so as to improve picture quality, is conducive to improving the search efficiency of examination question.
In embodiments of the present invention, the device each unit for searching for examination question with dual camera can be by corresponding hardware or software list
Member realizes that each unit can be independent soft and hardware unit, a soft and hardware unit can also be integrated into, herein not to limit
The system present invention.The embodiment of the device each unit specifically refers to the description of previous embodiment one, will not be repeated here.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (10)
1. a kind of method that examination question is searched for dual camera, it is characterised in that methods described comprises the steps：
The first image and the second image are obtained respectively, and described first image is the image shot by the first camera, described second
Image is the image shot by second camera；
Calculate described first image and the similarity of the second image；
When the similarity is less than default similarity, described first image and the second image are subjected to the first synthetic operation, obtained
Examination question search is carried out to the 3rd image, and according to the 3rd image.
2. the method as described in claim 1, it is characterised in that when the similarity is less than default similarity, by described the
One image and the second image carry out the first synthetic operation, obtain the 3rd image, and carry out examination question search according to the 3rd image
The step of, including：
Extract described first image and the second image same section and difference section；
Described first image and the second image same section are merged, by described first image and the difference portion of the second image
Divide and spliced, obtain the 3rd image.
3. the method as described in claim 1, it is characterised in that when the similarity is less than default similarity, by described the
One image and the second image carry out the first synthetic operation, obtain the 3rd image, and carry out examination question search according to the 3rd image
The step of, in addition to：
The contents of test question in the 3rd image is identified, examination question search is carried out in exam pool according to the contents of test question.
4. the method as described in claim 1, it is characterised in that methods described also includes：
When the similarity exceeds default similarity, described first image and the second image are subjected to the second synthetic operation, obtained
Examination question search is carried out to the 4th image, and according to the 4th image.
5. method as claimed in claim 4, it is characterised in that described first image and the second image are subjected to the second synthesis and grasped
Make, the step of obtaining four images, including：
Displacement vector is calculated according to described first image and the second image, and compensated, the 4th image is obtained.
6. a kind of device that examination question is searched for dual camera, it is characterised in that described device includes：
Image acquisition unit, for obtaining the first image and the second image respectively, described first image is to be clapped by the first camera
The image taken the photograph, second image is the image shot by second camera；
Similarity calculated, the similarity for calculating described first image and the second image；And
3rd picture search unit, for when the similarity is less than default similarity, by described first image and the second figure
As carrying out the first synthetic operation, the 3rd image is obtained, and examination question search is carried out according to the 3rd image.
7. device as claimed in claim 6, it is characterised in that the 3rd picture search unit, including：
Extraction unit, for extracting described first image and the second image same section and difference section；
3rd graphics processing unit, for described first image and the second image same section to be merged, by described first
The difference section of image and the second image is spliced, and obtains the 3rd image.
8. device as claimed in claim 6, it is characterised in that the 3rd picture search unit, in addition to：
Content recognition unit, for identifying the contents of test question in the 3rd image, according to the contents of test question in exam pool
Carry out examination question search.
9. device as claimed in claim 6, it is characterised in that described device also includes：
4th picture search unit, for when the similarity exceeds default similarity, by described first image and the second figure
As carrying out the second synthetic operation, the 4th image is obtained, and examination question search is carried out according to the 4th image.
10. device as claimed in claim 9, it is characterised in that the 4th picture search unit, including：
4th graphics processing unit, for calculating displacement vector according to described first image and the second image, and compensates, obtains
To the 4th image.
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| CN201710269848.8A CN107273402A (en) | 2017-04-24 | 2017-04-24 | Method and device for searching test questions by using double cameras |
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| CN201710269848.8A CN107273402A (en) | 2017-04-24 | 2017-04-24 | Method and device for searching test questions by using double cameras |
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| CN106023073A (en) * | 2016-05-06 | 2016-10-12 | 安徽伟合电子科技有限公司 | Image splicing system |
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| CN106899781A (en) * | 2017-03-06 | 2017-06-27 | 宇龙计算机通信科技(深圳)有限公司 | A kind of image processing method and electronic equipment |
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| CN103916582A (en) * | 2013-01-07 | 2014-07-09 | 华为技术有限公司 | Image processing method and device |
| CN106023073A (en) * | 2016-05-06 | 2016-10-12 | 安徽伟合电子科技有限公司 | Image splicing system |
| CN106095998A (en) * | 2016-06-21 | 2016-11-09 | 广东小天才科技有限公司 | Precise question searching method and device applied to intelligent terminal |
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Application publication date: 20171020 |