CN115379061A - Photographing scanning method and device - Google Patents
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- CN115379061A CN115379061A CN202210959346.9A CN202210959346A CN115379061A CN 115379061 A CN115379061 A CN 115379061A CN 202210959346 A CN202210959346 A CN 202210959346A CN 115379061 A CN115379061 A CN 115379061A
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- 238000000034 method Methods 0.000 title claims abstract description 72
- 230000004048 modification Effects 0.000 claims description 27
- 238000012986 modification Methods 0.000 claims description 27
- 238000013145 classification model Methods 0.000 claims description 15
- 238000012545 processing Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 abstract description 19
- 230000015654 memory Effects 0.000 description 29
- 238000012360 testing method Methods 0.000 description 7
- 238000001514 detection method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 5
- 230000009467 reduction Effects 0.000 description 3
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/0035—User-machine interface; Control console
- H04N1/00405—Output means
- H04N1/00408—Display of information to the user, e.g. menus
- H04N1/0044—Display of information to the user, e.g. menus for image preview or review, e.g. to help the user position a sheet
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning
- H04N1/00684—Object of the detection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning
- H04N1/00763—Action taken as a result of detection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/0402—Scanning different formats; Scanning with different densities of dots per unit length, e.g. different numbers of dots per inch (dpi); Conversion of scanning standards
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Abstract
The embodiment of the invention relates to a photographing scanning method and a device, wherein the method comprises the following steps: acquiring a preview image acquired by a photographing scanning device aiming at a scanned object in a photographing preview mode; identifying a type of the scanned object from the preview image; determining a target photographing scanning mode according to the type of the scanned object; and setting a photographing scanning mode of the photographing scanning equipment as the target photographing scanning mode, and performing photographing scanning on the scanned object according to the target photographing scanning mode. Therefore, the user operation process can be simplified, and the user experience is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of photographing and scanning, in particular to a photographing and scanning method and device.
Background
The current photo scanning device provides different scanning modes for different types of scanned objects for users. For example, an identification card scanning mode is provided for a user to use the photo scanning device to perform photo scanning on an identification card, a test paper scanning mode is provided for a user to use the photo scanning device to perform photo scanning on a test paper, and so on.
However, currently, when a user performs a photo scan on a scanned object using a photo scan apparatus, the photo scan mode needs to be set manually. This leads to a complicated operation for the user, especially in a scenario where the user uses the photo scanning device to continuously perform photo scanning on different types of scanned objects, the user is required to frequently switch the photo scanning mode, which is particularly complicated, and user experience is affected.
Disclosure of Invention
In view of this, in order to simplify the user operation process, embodiments of the present invention provide a photographing scanning method and apparatus.
In a first aspect, an embodiment of the present invention provides a photographing and scanning method, including:
acquiring a preview image acquired by a photographing scanning device aiming at a scanned object in a photographing preview mode;
identifying a type of the scanned object from the preview image;
determining a target photographing scanning mode according to the type of the scanned object;
and setting the photographing scanning mode of the photographing scanning device as the target photographing scanning mode, and performing photographing scanning on the scanned object according to the target photographing scanning mode.
In a possible embodiment, the number of the preview images is multiple, and the identifying the type of the scanned object from the preview images includes:
performing the following processing for each of the preview images: identifying the type of the scanned object from the preview image, and taking the identified type as a candidate type;
determining the number of occurrences of each of the identified candidate types;
and determining the type of the scanned object according to the occurrence times of each candidate type.
In a possible embodiment, the determining the type of the scanned object according to the number of occurrences of each of the types includes:
determining the candidate type with the highest occurrence number as the type of the scanned object.
In a possible embodiment, the determining the type of the scanned object according to the number of occurrences of each of the types includes:
determining a weight for each of the candidate types;
for each candidate type, determining the product of the occurrence times and the weight corresponding to the candidate type as the score of the candidate type;
determining the candidate type with the highest score as the type of the scanned object.
In a possible embodiment, the determining the weight of each of the types includes:
acquiring a historical photographing and scanning data set, wherein the historical photographing and scanning data set comprises photographing and scanning data corresponding to photographing and scanning at a plurality of historical moments, and the photographing and scanning data at least comprises the types;
determining the number of the photographing scan data corresponding to each candidate type;
determining a weight for each of the candidate types based on the number.
In a possible embodiment, the identifying the type of the scanned object from the preview image includes:
extracting a target region from the preview image, the target region containing the scanned object;
and inputting the target area into a trained classification model to obtain the type of the scanned object output by the classification model.
In a possible embodiment, the identifying the type of the scanned object from the preview image includes:
acquiring a historical photographing and scanning data set, wherein the historical photographing and scanning data set comprises photographing and scanning data corresponding to photographing and scanning at a plurality of historical moments, and the photographing and scanning data at least comprises scanned images;
determining a similarity between the preview image and each of the scanned images;
and under the condition that a target scanned image meeting a set condition is determined to exist, determining the type corresponding to the target scanned image as the type of the scanned object, wherein the set condition comprises that the similarity reaches a preset similarity threshold value.
In a possible implementation manner, before the performing the photo-scanning on the scanned object according to the target photo-scanning mode, the method further includes:
under the condition that modification operation aiming at a photographing scanning mode of the photographing scanning equipment is detected, acquiring a photographing scanning mode corresponding to the modification operation;
and re-determining the photographing scanning mode corresponding to the modification operation as a target photographing scanning mode, and setting the photographing scanning mode of the photographing scanning device as the target photographing scanning mode again.
In a possible implementation manner, before the performing the photo-scanning on the scanned object according to the target photo-scanning mode, the method further includes:
re-acquiring a preview image acquired by the photographing scanning device aiming at the scanned object in the photographing preview mode, and determining whether the scanned object is switched or not based on the re-acquired preview image;
and under the condition that the scanned object is determined to be switched, the steps of identifying the type of the scanned object from the preview image and determining a target photographing scanning mode according to the type of the scanned object are executed again.
In a second aspect, an embodiment of the present invention provides a photographing scanning apparatus, including:
the acquisition module is used for acquiring a preview image acquired by the photographing scanning equipment aiming at a scanned object in a photographing preview mode;
the identification module is used for identifying the type of the scanned object from the preview image;
the determining module is used for determining a target photographing scanning mode according to the type of the scanned object;
and the setting module is used for setting the photographing scanning mode of the photographing scanning device to the target photographing scanning mode and carrying out photographing scanning on the scanned object according to the target photographing scanning mode.
In a possible implementation manner, the number of the preview images is multiple, and the identifying module is specifically configured to:
for each preview image, identifying the type of the scanned object from the preview image, and taking the identified type as a candidate type;
determining the number of occurrences of each of the identified candidate types;
and determining the type of the scanned object according to the occurrence times of each candidate type.
In a possible implementation manner, the identification module is further configured to:
and determining the candidate type with the highest occurrence number as the type of the scanned object.
In a possible implementation, the identification module is further configured to:
determining a weight for each of the candidate types;
for each candidate type, determining the product of the occurrence number corresponding to the candidate type and the weight as the score of the candidate type;
determining the candidate type with the highest score as the type of the scanned object.
In a possible implementation, the identification module is further configured to:
acquiring a historical photographing and scanning data set, wherein the historical photographing and scanning data set comprises photographing and scanning data corresponding to photographing and scanning at a plurality of historical moments, and the photographing and scanning data at least comprises the type;
determining the number of the photographing scan data corresponding to each candidate type;
determining a weight for each of the candidate types based on the number.
In a possible implementation, the identification module is further configured to:
extracting a target region from the preview image, the target region containing the scanned object;
and inputting the target area into a trained classification model to obtain the type of the scanned object output by the classification model.
In a possible implementation, the identification module is further configured to:
acquiring a historical photographing and scanning data set, wherein the historical photographing and scanning data set comprises photographing and scanning data corresponding to photographing and scanning at a plurality of historical moments, and the photographing and scanning data at least comprises scanned images;
determining a similarity between the preview image and each of the scanned images;
and under the condition that a target scanned image meeting a set condition is determined to exist, determining the type corresponding to the target scanned image as the type of the scanned object, wherein the set condition comprises that the similarity reaches a preset similarity threshold value.
In a possible embodiment, the apparatus further comprises:
the detection module is used for acquiring a photographing and scanning mode corresponding to a modification operation under the condition that the modification operation aiming at the photographing and scanning mode of the photographing and scanning equipment is detected;
and the re-determining module is used for re-determining the photographing and scanning mode corresponding to the modification operation as a target photographing and scanning mode, and re-executing the step of setting the photographing and scanning mode of the photographing and scanning equipment as the target photographing and scanning mode.
In a possible embodiment, the apparatus further comprises:
the reacquisition module is used for reacquiring a preview image acquired by the photographing scanning device aiming at the scanned object in the photographing preview mode, and determining whether the scanned object is switched or not based on the reacquired preview image;
and the re-execution module is used for re-executing the steps of identifying the type of the scanned object from the preview image and determining a target photographing scanning mode according to the type of the scanned object under the condition that the scanned object is determined to be switched.
In a third aspect, an embodiment of the present invention provides an electronic device, including: a processor and a memory, wherein the processor is configured to execute the photo scanning program stored in the memory to implement the photo scanning method of any one of the first aspect.
In a fourth aspect, an embodiment of the present invention provides a storage medium, where the storage medium stores one or more programs, and the one or more programs are executable by one or more processors to implement the photo scanning method according to any one of the first aspects.
According to the technical scheme provided by the embodiment of the invention, the type of the scanned object is identified from the preview image by acquiring the preview image which is acquired by the photographing and scanning device aiming at the scanned object in the photographing and previewing mode, the target photographing and scanning mode is determined according to the type of the scanned object, the photographing and scanning mode of the photographing and scanning device is set as the target photographing and scanning mode, and the scanned object is photographed and scanned according to the target photographing and scanning mode. Therefore, automatic setting of the photographing scanning mode is achieved, the user does not need to manually set the photographing scanning mode, the operation process of the user is simplified, and user experience is improved.
Drawings
Fig. 1 is a flowchart of an embodiment of a photo scanning method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an identity card scanned by the photo scanning method according to the embodiment of the present invention;
FIG. 3 is a diagram illustrating a scan table scanned by the photo scanning method according to an embodiment of the present invention;
FIG. 4 is a flowchart illustrating another photographing and scanning method according to an embodiment of the present invention;
FIG. 5 is a flowchart of another photo scanning method according to an embodiment of the present invention;
FIG. 6 is a flowchart illustrating another photographing and scanning method according to an embodiment of the present invention;
FIG. 7 is a flowchart illustrating another photographing and scanning method according to an embodiment of the present invention;
FIG. 8 is a flowchart illustrating another photographing and scanning method according to an embodiment of the present invention;
fig. 9 is a block diagram of a photographing and scanning apparatus according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The photo scanning method provided by the present invention is explained with reference to the accompanying drawings by using specific embodiments, which are not intended to limit the embodiments of the present invention.
Referring to fig. 1, a flowchart of an embodiment of a photo scanning method according to an embodiment of the present invention is shown. As shown in fig. 1, the process may include the following steps:
The photographing and scanning method provided by the embodiment of the invention can be applied to photographing and scanning equipment. The photographing and scanning device can be various hardware devices with a display screen, and can also be software. When the device is hardware, it may be a device that supports various electronic devices with display screens, including but not limited to smartphones, tablets, laptop portable computers, desktop computers, servers, and the like. When the device is software, the software can be installed in the electronic devices listed above.
Furthermore, under the condition that the photographing and scanning device is a hardware device such as a smart phone and a tablet personal computer, the photographing and scanning device can be provided with a camera, and the photographing and scanning device can acquire images of the scanned object through the camera so as to photograph and scan the scanned object.
Under the condition that the photographing and scanning equipment is hardware equipment such as a desktop computer and a server, the photographing and scanning equipment can be connected with an independent camera, and the photographing and scanning equipment can acquire images of scanned objects through the camera.
The scanned object may be a document, a certificate, or the like. Among these, documents include, but are not limited to: forms, test papers, books, plain text documents, etc., documents may include, but are not limited to: bank cards, identification cards, house books, passports, drivers licenses, and the like.
In general, when a photographing scanning device is used for photographing and scanning, a camera is firstly turned on, and at this time, the photographing scanning device is in a photographing preview mode. In the photographing preview mode, the user can place the scanned object in a view-finding frame of the camera, so that the photographing scanning device can acquire a preview image of the scanned object in the photographing preview mode.
The number of the preview images may be one or more. When the number of the preview images is one, the photographing and scanning device can acquire the preview image of the scanned object at any time in the photographing and previewing mode. In the case that the number of preview images is multiple, the photographing and scanning device may collect video stream data of a scanned object when detecting that the scanned object appears in the view finder, and extract a plurality of video frames from the video stream data, where each video frame is a preview image.
The type of the scanned object is identified from the preview image, step 102.
The types can include document types, certificate types and the like, wherein the document types can be further subdivided into types of test papers, forms, books, common text documents and the like, and the certificate types can be further subdivided into types of identity cards, account books, bank cards and the like.
As to how the type of the scanned object is specifically identified from the preview image, the following explanation is made by different embodiments, and will not be detailed here.
And step 104, setting the photographing scanning mode of the photographing scanning device to be a target photographing scanning mode, and performing photographing scanning on the scanned object according to the target photographing scanning mode.
Step 103 and step 104 are explained below collectively:
the photo-scanning device can support a plurality of photo-scanning modes including, but not limited to: an identity card shooting mode, a form reduction mode, a test paper reduction mode and the like. The different photographing and scanning modes correspond to different photographing and scanning operations and are suitable for photographing and scanning different types of objects.
For example, in the identity card shooting mode, the shooting of two images, namely the front image and the back image of the identity card, can be supported, and the front image and the back image of the identity card are spliced to the same image with the size of A4 paper, so that the user can print and use the image conveniently.
Under the test paper reduction mode, the scanned object of the test paper can be identified by entering a special identification process with mathematical, chemical and physical formulas, symbols and the like, so that the problem of inaccurate identification caused by entering a common document identification process, such as identifying the formulas, the symbols and the like into messy codes, is avoided.
In the form restoring mode, a corresponding form can be generated for the scanned object, i.e. the form, so that the form editing is convenient for a user.
As can be seen from the above description, the recognition modes corresponding to different photo-scanning modes and the format of the scan generation file are different, and each photo-scanning mode can be specifically used for photo-scanning a certain type of object to be scanned. Therefore, the target photographing and scanning mode can be determined according to the type of the scanned object, and the scanned object is photographed and scanned by using the target photographing and scanning mode corresponding to the scanned object, so that the accuracy of the photographing and scanning result can be ensured, and meanwhile, the scanned file obtained by photographing and scanning can meet the use requirements of users.
In one embodiment, the correspondence between the type of the scanned object and the photographing scan mode is preset, and after the type of the scanned object is determined, the photographing scan mode corresponding to the type of the scanned object (referred to as a target photographing scan mode) may be determined according to the correspondence. And then, setting the photographing scanning mode of the photographing scanning device as a target photographing scanning mode, and performing photographing scanning on the scanned object according to the target photographing scanning mode. Thus, automatic setting of the photographing scanning mode is realized.
For example, as shown in fig. 2, if the type of the scanned object is an identification card type, the photographing scan mode of the photographing scan apparatus is automatically set to the photographing scan mode for identification card photographing. Under the identity card shooting mode, the method can support the shooting of two images, namely the front image and the back image of the identity card, and the front image and the back image of the identity card are spliced to the same image with the size of A4 paper, so that the user can print and use the image conveniently.
For another example, as shown in fig. 3, if the type of the scanned object is a form type, the photographing and scanning mode of the photographing and scanning device is automatically set to the photographing and scanning mode for form restoration, and in the form restoration mode, a corresponding form can be generated, which is convenient for a subsequent user to edit the form.
According to the technical scheme provided by the embodiment of the invention, the type of the scanned object is identified from the preview image by acquiring the preview image which is acquired by the photographing and scanning device aiming at the scanned object in the photographing and previewing mode, the target photographing and scanning mode is determined according to the type of the scanned object, the photographing and scanning mode of the photographing and scanning device is set as the target photographing and scanning mode, and the scanned object is photographed and scanned according to the target photographing and scanning mode. Therefore, automatic setting of the photographing scanning mode is achieved, and a user does not need to manually set the photographing scanning mode, so that the operation process of the user is simplified, and the user experience is improved.
Referring to fig. 4, a flowchart of another photo scanning method according to an embodiment of the present invention is provided. The flow shown in fig. 4 is based on the flow shown in fig. 1, and describes how to identify the type of the scanned object from the preview image in the case where there are a plurality of preview images. As shown in fig. 4, the process may include the following steps:
In the embodiment of the invention, a plurality of video frames can be extracted from the video stream data of the scanned object collected by the photographing and scanning device, and each video frame is taken as a preview image, so that a plurality of preview images are obtained.
In application, even if the scanned objects in a plurality of preview images are the same, the types of the scanned objects may be different from each other by the influence of various factors such as the shooting angle, the shooting distance, the picture distortion degree, and the recognition algorithm. In view of this, in the embodiment of the present invention, each preview image is identified separately, a type of a scanned object included in each preview image is obtained, and the identified type is used as a candidate type. The candidate type means a possible type of the scanned object in the preview image.
For example, 1 to 5 preview images are respectively identified, and the type of the scanned object in the preview image 1 to 2 is an identification card type, and the type of the scanned object in the preview image 3 to 5 is a table type, so that the identification card type and the table type are two candidate types.
At step 402, the number of occurrences of each candidate type identified is determined.
In the embodiment of the present invention, the number of occurrences of each candidate type, that is, the number of preview images whose recognition result is the candidate type, is set.
For example, 1 to 5 preview images are respectively identified, and the type of the scanned object in the preview image 1 to 2 is an identification card type, and the type of the scanned object in the preview image 3 to 5 is a table type, so that the number of preview images corresponding to the candidate type "identification card type" is 2, the number of preview images corresponding to the candidate type "table type" is 3, that is, the number of occurrences corresponding to the candidate type "identification card type" is 2, and the number of occurrences corresponding to the candidate type "table type" is 3.
In one embodiment, determining the type of the scanned object based on the number of occurrences of each type may include: and determining the candidate type with the highest occurrence number as the type of the scanned object. In this way, a fast determination of the type of the scanned object among the candidate types may be achieved.
For example, in the above example, the number of occurrences corresponding to the candidate type "id card type" is 2, and the number of occurrences corresponding to the candidate type "table type" is 3. And if the occurrence frequency corresponding to the candidate type table type is the highest, determining that the candidate type table type is the type of the scanned object.
In another embodiment, determining the specific implementation of the type of the scanned object based on the number of occurrences of each type may include: determining the weight of each candidate type, and determining the product of the occurrence frequency corresponding to the candidate type and the weight as the score of the candidate type aiming at each candidate type; and determining the candidate type with the highest score as the type of the scanned object. Wherein, the score of the candidate type is used for representing the possibility that the candidate type is the type of the scanned object, and the higher the score is, the higher the possibility is. In this way, the accuracy of the finally identified scanned object type can be improved.
As an alternative embodiment, for each type, a value set by the user may be used as the weight of the type. Thus, each type of weight can be flexibly adjusted according to the user intention.
As another alternative, each type of weight may be determined by: and acquiring a historical photographing and scanning data set, wherein the historical photographing and scanning data set comprises photographing and scanning data corresponding to photographing and scanning at a plurality of historical moments, and the photographing and scanning data at least comprises the type of a historical scanned object. It should be noted that the type of the photo scan data is correct, that is, the photo scan data is data obtained by performing the photo scan in the correct photo scan mode.
Further, if the larger the amount of the photo scan data corresponding to a certain type, the more times the scanned object of that type appears in the user history scanning process, it can be considered that the user often needs to perform photo scan on the scanned object of that type, and the higher the possibility that the scanned object of this time is of that type. Based on this, the number of the photo-scan data corresponding to each candidate type can be determined from the historical photo-scan data set, and the weight of each candidate type can be determined according to the number. Here, the number may have a positive correlation with the weight, i.e., the greater the number, the greater the weight. The weight of each candidate type is determined according to the number, and is not limited in detail. In this way, determining the weight of each type according to the historical photo-scanning behavior of the user can be realized, so that the weight can reflect the frequency of photo-scanning of each type of scanned object by the user.
In addition, it should be noted that, as time goes by, the historical photo-scan data set may be updated, and each type of weight may also be updated accordingly, which is not limited herein.
Through the process shown in fig. 4, the candidate types corresponding to each preview image are identified, the occurrence frequency of each candidate type is determined, and the type of the scanned object is determined according to the occurrence frequency of each candidate type. Thereby improving the accuracy of determining the type of object being scanned.
Referring to fig. 5, a flowchart of another photo scanning method according to an embodiment of the present invention is provided. The flow shown in fig. 5 is based on the flow shown in fig. 1 or fig. 4, and describes an implementation manner of recognizing the type of the scanned object from the preview image. As shown in fig. 5, the process may include the following steps:
Step 501 and step 502 are explained below in a unified manner:
in the embodiment of the present invention, a trained multi-target detection network (such as a YOLO v5 network) may be used to detect a preview image, determine a target detection object (i.e., a scanned object) included in the preview image, and intercept the preview image based on a position of the target detection object in the preview image to obtain a target area including the target detection object. Then, the target region is input into a trained classification model (such as a mobilenet network model), and the type of the scanned object output by the classification model is obtained.
Optionally, before the target region is input into the classification model, the target region may be preprocessed (e.g., amplified and corrected), so as to further ensure the accuracy of the classification result.
Through the flow shown in fig. 5, the target area including the scanned object is extracted from the preview image, and the target area is input into the trained classification model, so as to obtain the type of the scanned object output by the classification model. In this way, the accuracy of the identified scanned object type can be further improved.
Referring to fig. 6, a flowchart of another embodiment of a photo scanning method according to the embodiment of the present invention is provided. The flowchart of fig. 6 is based on the flowchart of fig. 1, and describes another implementation manner for recognizing the type of the scanned object from the preview image. As shown in fig. 6, the process may include the following steps:
At step 602, a similarity between the preview image and each of the scanned images is determined.
The following describes steps 601 to 603 in a unified manner:
the historical photographing and scanning data set includes a plurality of scanned images corresponding to photographing and scanning at a plurality of historical moments, and it should be noted that the scanned images are images obtained by performing photographing and scanning in a correct photographing and scanning mode.
In one embodiment, a similarity between the preview image and each scanned image in the historical photographed scan data set may be determined, a scanned image whose similarity reaches a preset similarity threshold may be determined as the target scanned image, and the type of the target scanned image may be determined as the type of the scanned object.
Further, as an alternative embodiment, if there is only one target scanned image, the type of the target scanned image may be directly determined as the type of the scanned object. If a plurality of target scanned images exist, the type of the target scanned image with the highest similarity can be determined as the type of the scanned object.
Through the flow shown in fig. 6, the determination of the similarity between the preview image and each scanned image in the historical photographed and scanned data set is realized, and the type of the scanned image with the similarity reaching the preset similarity threshold is determined as the type of the scanned object. Therefore, the type of the scanned object contained in the preview image does not need to be directly identified, and identification resources are saved.
Referring to fig. 7, a flowchart of another embodiment of a photo scanning method according to the embodiment of the present invention is provided. The process shown in fig. 7 may include the following steps based on the process shown in fig. 1:
At step 702, the type of the scanned object is identified from the preview image.
In step 703, a target photographing scanning mode is determined according to the type of the scanned object.
The description of the steps 701 to 703 may refer to the related description in the above embodiment, and is not repeated here.
After the target photographing scanning mode is determined according to the type of the scanned object and before the scanned object is photographed and scanned according to the target photographing scanning mode, the photographing scanning mode of the photographing scanning device is set as the target photographing scanning mode, so that firstly, a user can visually know the target photographing scanning mode determined according to the type of the scanned object, and secondly, under the condition that the user determines that the scanned object is photographed and scanned according to the target photographing scanning mode, the user does not need to manually set the photographing scanning mode, and the user operation is saved.
In step 707, the photographing scan mode of the photographing scan apparatus is set to the target photographing scan mode.
The following describes steps 705 to 708 in a unified manner:
in practical applications, the target photographing and scanning mode determined according to the type of the scanned object may not meet the user's expectations, and then after the step 704 is executed and before the scanned object is photographed and scanned according to the target photographing and scanning mode determined in the step 703, the user may modify the photographing and scanning mode adopted by the photographing and scanning device for photographing and scanning the scanned object again according to actual needs.
Specifically, in an embodiment, after the step 704 is executed, if a modification operation for the photo-scanning mode of the photo-scanning device is detected within a preset time period, the photo-scanning mode corresponding to the modification operation is obtained, and the photo-scanning mode corresponding to the modification operation is determined as the target photo-scanning mode again. Then, the step of setting the photo-scanning mode of the photo-scanning device to the target photo-scanning mode is executed again. The target photographing scan mode at this time is determined not according to the type of the scanned apparatus but according to the modification operation by the user.
For example, the target photographing scan mode is determined to be the resume scan mode through steps 701 to 703, and the user sets the photographing scan mode to the PPT scan mode through the modification operation, and then the PPT scan mode is taken as the final target photographing scan mode.
Further, when determining that the target photographing and scanning mode of the photographing and scanning device does not need to be modified again, the user can control the photographing and scanning mode to perform photographing and scanning according to the target photographing and scanning mode. For example, the user may trigger a photographing button, and the photographing scanning device performs photographing scanning in the target photographing scanning mode when detecting that the photographing scanning button is triggered.
Optionally, the modification operation may be a trigger operation on a corresponding button, where the button may be a physical button or a virtual button displayed on a display screen, and is not limited specifically herein. Alternatively, the modification operation may be a sliding operation. It should be noted here that, in the case where the above-described modification operation is a slide operation, the photographing scan apparatus can directly implement switching of the photographing scan mode as the slide operation is performed.
In addition, in an embodiment, after the step 704 is executed, if the modification operation for the photo-scanning mode of the photo-scanning device is not detected within the preset time period, the flow of the step 708 may be directly entered.
The flow shown in fig. 7 is to determine the photo-scanning mode corresponding to the modification operation as the target photo-scanning mode again when the modification operation for the photo-scanning mode of the photo-scanning device is detected, and to perform photo-scanning on the scanned object according to the determined target photo-scanning mode. Therefore, the target scanning mode finally adopted can be flexibly modified by the user according to actual needs under the condition that the target scanning mode determined according to the type of the scanned object does not meet the user expectation, and the use requirements of the user are met.
Referring to fig. 8, a flowchart of another embodiment of a photo scanning method according to the embodiment of the present invention is provided. The process shown in fig. 8 may include the following steps based on the process shown in fig. 1:
Step 802 identifies the type of object being scanned from the preview image.
In step 803, a target photographing scan mode is determined according to the type of the scanned object.
And step 804, setting the photographing scanning mode of the photographing scanning device as a target photographing scanning mode.
The descriptions of steps 801 to 804 may refer to the relevant descriptions in the above embodiments, and are not described herein again.
Step 806 determines whether the scanned object is switched based on the re-acquired preview image, and if the scanned object is determined to be switched, the step returns to step 802, and if the scanned object is determined not to be changed, the step 807 is executed.
In step 807, the scanned object is scanned by photographing according to the target photographing scan mode.
The following describes steps 805 to 807 in a unified manner:
in practical applications, after the photo-scanning mode of the photo-scanning device is set as the target photo-scanning mode, there may be a case of switching the scanned object, and if step 807 is executed according to the target photo-scanning mode determined by the scanned object before switching, the target photo-scanning mode may not match the current scanned object. Therefore, after the above step 804 is performed, it can be further determined whether the scanned object is switched.
In the case where it is determined that the scanned object is not switched, the photographing and scanning device may remain in the target photographing and scanning mode, waiting for triggering of the photographing and scanning operation. In the case where it is determined that the scanned object is switched, steps 801 to 803 may be re-executed to re-determine the target photographing scanning mode for the switched scanned object.
In an embodiment, when it is detected that the shooting angle of the camera changes, the preview image acquired by the shooting and scanning device for the scanned object in the shooting preview mode may be acquired again, and whether the scanned object is switched or not may be determined by comparing the preview image acquired at this time with the preview image acquired when step 801 is executed before. For example, the similarity between the preview image acquired at this time and the preview image acquired when step 801 was executed before may be determined, and in the case where the similarity is greater than or equal to a preset similarity threshold, it is determined that the scanned object is not switched; otherwise, under the condition that the similarity is smaller than the preset similarity threshold, the scanned object is determined to be switched.
In another embodiment, in the case that the shooting angle of the camera is not changed, but it is detected that one scanned object moves out of the view frame of the camera and another scanned object enters the view frame of the camera, it means that there is a possibility of switching of the scanned object, at this time, the preview image acquired by the photo scanning device in the photo preview mode may be acquired again, and whether the scanned object is switched or not may be determined based on comparison between the preview image acquired at this time and the preview image acquired when step 801 is executed before. For a specific implementation process, reference may be made to the description in the foregoing embodiments, which are not described herein again.
Through the process shown in fig. 8, after the target photographing scanning mode is determined, the preview image acquired by the photographing scanning device for the scanned object in the photographing preview mode is acquired again, and in a case that it is determined that the scanned object is switched based on the preview image, the target photographing scanning mode is determined for the current scanned object again. In this way, the target photographing scanning mode can be automatically determined again under the condition that the scanned object is switched.
Referring to fig. 9, a block diagram of an embodiment of a photographing scanning apparatus according to an embodiment of the present invention is shown. As shown in fig. 9, the acquiring module 901 is configured to acquire a preview image acquired by the photographing scanning device in a photographing preview mode for a scanned object;
an identifying module 902 for identifying a type of the scanned object from the preview image;
a determining module 903, configured to determine a target photographing scanning mode according to the type of the scanned object;
the setting module 904 is configured to set the photographing scanning mode of the photographing scanning device to a target photographing scanning mode, and perform photographing scanning on a scanned object according to the target photographing scanning mode.
In a possible embodiment, the number of preview images is multiple, and the identifying module is specifically configured to:
for each preview image, identifying the type of the scanned object from the preview image, and taking the identified type as a candidate type;
determining the number of occurrences of each of the identified candidate types;
and determining the type of the scanned object according to the occurrence times of each candidate type.
In a possible implementation, the identification module is further configured to:
and determining the candidate type with the highest occurrence number as the type of the scanned object.
In a possible implementation, the identification module is further configured to:
determining a weight for each candidate type;
for each candidate type, determining the product of the occurrence times and the weight corresponding to the candidate type as the score of the candidate type;
and determining the candidate type with the highest score as the type of the scanned object.
In a possible implementation, the identification module is further configured to:
acquiring a historical photographing and scanning data set, wherein the historical photographing and scanning data set comprises photographing and scanning data corresponding to photographing and scanning at a plurality of historical moments, and the photographing and scanning data at least comprises types;
determining the number of the photographing scanning data corresponding to each candidate type;
the weight of each candidate type is determined according to the number.
In a possible implementation, the identification module is further configured to:
extracting a target area from the preview image, wherein the target area contains a scanned object;
and inputting the target area into the trained classification model to obtain the type of the scanned object output by the classification model.
In a possible implementation, the identification module is further configured to:
acquiring a historical photographing and scanning data set, wherein the historical photographing and scanning data set comprises photographing and scanning data corresponding to a plurality of historical moments, and the photographing and scanning data at least comprises scanned images;
determining a similarity between the preview image and each scanned image;
and under the condition that the target scanned image meeting the set condition is determined to exist, determining the type corresponding to the target scanned image as the type of the scanned object, wherein the set condition comprises that the similarity reaches a preset similarity threshold value.
In a possible embodiment, the apparatus further comprises:
the detection module is used for acquiring a photographing and scanning mode corresponding to modification operation under the condition that the modification operation of the photographing and scanning mode of the photographing and scanning equipment is detected;
and the re-determining module is used for re-determining the photographing scanning mode corresponding to the modification operation as the target photographing scanning mode and setting the photographing scanning mode of the photographing scanning equipment as the target photographing scanning mode again.
In a possible embodiment, the apparatus further comprises:
the reacquisition module is used for reacquiring a preview image acquired by the photographing scanning equipment aiming at the scanned object in a photographing preview mode and determining whether the scanned object is switched or not based on the preview image;
and the re-execution module is used for re-executing the steps of identifying the type of the scanned object from the preview image and determining the target photographing scanning mode according to the type of the scanned object under the condition that the scanned object is determined to be switched.
According to the technical scheme provided by the embodiment of the invention, the type of the scanned object is identified from the preview image by acquiring the preview image which is acquired by the photographing and scanning device aiming at the scanned object in the photographing and previewing mode, the target photographing and scanning mode is determined according to the type of the scanned object, the photographing and scanning mode of the photographing and scanning device is set as the target photographing and scanning mode, and the scanned object is photographed and scanned according to the target photographing and scanning mode. Therefore, automatic setting of the photographing scanning mode is achieved, and a user does not need to manually set the photographing scanning mode, so that the operation process of the user is simplified, and the user experience is improved.
Fig. 10 is a schematic structural diagram of an electronic device according to an embodiment of the present invention, where the electronic device 1000 shown in fig. 10 includes: at least one processor 1001, memory 1002, at least one network interface 1004, and other user interfaces 1003. The various components in the electronic device 1000 are coupled together by a bus system 1005. It is understood that bus system 1005 is used to enable communications among the components connected. The bus system 1005 includes a power bus, a control bus, and a status signal bus, in addition to a data bus. For clarity of illustration, however, the various busses are labeled in fig. 8 as the bus system 1005.
The user interface 1003 may include, among other things, a display, a keyboard or pointing device (e.g., a mouse, trackball), a touch pad or touch screen, etc.
It is to be understood that the memory 1002 in embodiments of the present invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. The volatile Memory may be a Random Access Memory (RAM) which serves as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), enhanced Synchronous SDRAM (ESDRAM), synchronous link Dynamic random access memory (Synchlink DRAM, SLDRAM), and Direct Rambus Random Access Memory (DRRAM). The memory 1002 described herein is intended to comprise, without being limited to, these and any other suitable types of memory.
In some embodiments, memory 1002 stores the following elements, executable units or data structures, or a subset thereof, or an expanded set thereof: an operating system 10021 and applications 10022.
The operating system 10021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is used for implementing various basic services and processing hardware-based tasks. The application 10022 includes various applications, such as a media player (MediaPlayer), a Browser (Browser), and the like, for implementing various application services. The program implementing the method according to the embodiment of the present invention may be included in the application program 10022.
In the embodiment of the present invention, by calling the program or the instruction stored in the memory 1002, specifically, the program or the instruction stored in the application 10022, the processor 1001 is configured to execute the method steps provided by the method embodiments, for example, the method steps include:
acquiring a preview image acquired by a photographing scanning device aiming at a scanned object in a photographing preview mode;
identifying the type of the scanned object from the preview image;
determining a target photographing scanning mode according to the type of the scanned object;
and setting the photographing scanning mode of the photographing scanning equipment as a target photographing scanning mode, and photographing and scanning the scanned object according to the target photographing scanning mode.
The method disclosed by the embodiment of the invention can be applied to the processor 1001 or can be implemented by the processor 1001. The processor 1001 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 801. The Processor 801 may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software elements in the decoding processor. The software elements may be located in ram, flash, rom, prom, or eprom, registers, among other storage media that are well known in the art. The storage medium is located in the memory 1002, and the processor 1001 reads the information in the memory 1002 and performs the steps of the method in combination with the hardware.
It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For a hardware implementation, the Processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units configured to perform the functions described herein, or a combination thereof.
For a software implementation, the techniques described herein may be implemented by means of units performing the functions described herein. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.
The electronic device provided in this embodiment may be the electronic device shown in fig. 10, and may execute all the steps of the photo scanning method shown in fig. 1 and fig. 4 to fig. 8, so as to achieve the technical effects of the photo scanning method shown in fig. 1 and fig. 4 to fig. 8, please refer to the related description of fig. 1 and fig. 4 to fig. 8, which is not repeated herein for brevity.
The embodiment of the invention also provides a storage medium (computer readable storage medium). The storage medium herein stores one or more programs. Among others, storage media may include volatile memory, such as random access memory; the memory may also include non-volatile memory, such as read-only memory, flash memory, a hard disk, or a solid state disk; the memory may also comprise a combination of memories of the kind described above.
When one or more programs in the storage medium are executable by one or more processors, the photographing scanning method executed on the electronic device side is realized.
The processor is used for executing the photographing and scanning program stored in the memory so as to realize the following steps of the photographing and scanning method executed on the electronic equipment side:
acquiring a preview image acquired by a photographing scanning device aiming at a scanned object in a photographing preview mode;
identifying a type of the scanned object from the preview image;
determining a target photographing scanning mode according to the type of the scanned object;
and setting a photographing scanning mode of the photographing scanning device as the target photographing scanning mode, and performing photographing scanning on the scanned object according to the target photographing scanning mode.
Those of skill would further appreciate that the various illustrative components and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the components and steps of the various examples have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the technical solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied in hardware, a software module executed by a processor, or a combination of the two. A software module may reside in Random Access Memory (RAM), memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only examples of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A photo scanning method, comprising:
acquiring a preview image acquired by a photographing scanning device aiming at a scanned object in a photographing preview mode;
identifying a type of the scanned object from the preview image;
determining a target photographing scanning mode according to the type of the scanned object;
and setting the photographing scanning mode of the photographing scanning device as the target photographing scanning mode, and performing photographing scanning on the scanned object according to the target photographing scanning mode.
2. The method of claim 1, wherein the number of preview images is plural, and wherein the identifying the type of the scanned object from the preview images comprises:
performing the following processing for each of the preview images: identifying the type of the scanned object from the preview image, and taking the identified type as a candidate type;
determining the number of occurrences of each of the identified candidate types;
and determining the type of the scanned object according to the occurrence number of each candidate type.
3. The method of claim 2, wherein said determining the type of the scanned object based on the number of occurrences of each of the types comprises:
and determining the candidate type with the highest occurrence number as the type of the scanned object.
4. The method of claim 2, wherein said determining the type of the scanned object based on the number of occurrences of each of the types comprises:
determining a weight for each of the candidate types;
for each candidate type, determining the product of the occurrence times and the weight corresponding to the candidate type as the score of the candidate type;
determining the candidate type with the highest score as the type of the scanned object.
5. The method of claim 4, wherein said determining a weight for each of said types comprises:
acquiring a historical photographing and scanning data set, wherein the historical photographing and scanning data set comprises photographing and scanning data corresponding to photographing and scanning at a plurality of historical moments, and the photographing and scanning data at least comprises the types;
determining the number of the photo-taking scanning data corresponding to each candidate type;
determining a weight for each of the candidate types based on the number.
6. The method of claim 1 or 2, wherein the identifying the type of the scanned object from the preview image comprises:
extracting a target region from the preview image, the target region containing the scanned object;
and inputting the target area into a trained classification model to obtain the type of the scanned object output by the classification model.
7. The method of claim 1, wherein the identifying the type of the scanned object from the preview image comprises:
acquiring a historical photographing and scanning data set, wherein the historical photographing and scanning data set comprises photographing and scanning data corresponding to a plurality of historical moments, and the photographing and scanning data at least comprises scanned images;
determining a similarity between the preview image and each of the scanned images;
and under the condition that a target scanned image meeting a set condition is determined to exist, determining the type corresponding to the target scanned image as the type of the scanned object, wherein the set condition comprises that the similarity reaches a preset similarity threshold value.
8. The method according to claim 1, further comprising, before the photo-scanning the scanned object in the target photo-scanning mode:
under the condition that modification operation aiming at a photographing scanning mode of the photographing scanning equipment is detected, acquiring a photographing scanning mode corresponding to the modification operation;
and re-determining the photographing scanning mode corresponding to the modification operation as a target photographing scanning mode, and setting the photographing scanning mode of the photographing scanning device as the target photographing scanning mode again.
9. The method according to claim 1 or 8, before the performing the photo-scan on the scanned object in the target photo-scan mode, further comprising:
the method comprises the steps of re-acquiring a preview image acquired by the photographing scanning device aiming at a scanned object in the photographing preview mode, and determining whether the scanned object is switched or not based on the re-acquired preview image;
and under the condition that the scanned object is determined to be switched, the steps of identifying the type of the scanned object from the preview image and determining a target photographing scanning mode according to the type of the scanned object are executed again.
10. A photographing scanning device, comprising:
the acquisition module is used for acquiring a preview image which is acquired by the photographing scanning equipment aiming at a scanned object in a photographing preview mode;
the identification module is used for identifying the type of the scanned object from the preview image;
the determining module is used for determining a target photographing scanning mode according to the type of the scanned object;
and the setting module is used for setting the photographing scanning mode of the photographing scanning device to the target photographing scanning mode and carrying out photographing scanning on the scanned object according to the target photographing scanning mode.
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