CN109889725B - System and method for avoiding photo reproduction - Google Patents
System and method for avoiding photo reproduction Download PDFInfo
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- CN109889725B CN109889725B CN201910144372.4A CN201910144372A CN109889725B CN 109889725 B CN109889725 B CN 109889725B CN 201910144372 A CN201910144372 A CN 201910144372A CN 109889725 B CN109889725 B CN 109889725B
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Abstract
The invention discloses a system for avoiding photo reproduction, which comprises a background verification server and a panoramic shooting application program connected with the background verification server; the panoramic shooting application program takes a certain point as a center, moves a camera, continuously shoots at a plurality of shooting positions, and then splices and synthesizes a plurality of shot photos, or splices and synthesizes photos of at least two continuous shooting positions which can be spliced to generate a panoramic photo; a background verification server: receiving a photo synthesized by a panoramic shooting application program in real time, determining a shooting time point, judging whether the photo is shot at a specified time, and judging whether the panoramic photo comprises appointed content and whether the photo is a copied photo. The system can effectively avoid sending the electronic photo stored on the intelligent device or the paper photo printed in advance to the background verification server after being copied, and the authenticity of on-site shooting is guaranteed.
Description
Technical Field
The invention relates to the technical field of real-time image acquisition, in particular to a system and a method for avoiding photo reproduction.
Background
In the actual production and operation process, in order to verify whether the party B fulfills his obligations in related activities, the party B is often required to send pictures taken in real time on site to the management service platform for verification. For example, in the sales of goods, suppliers often enter into some kind of agreement with the seller, requiring that their products remain on their shelves for a period of time to be exhibited. In order to check the sales exhibition situation of the vendor, the vendor usually takes photos of the real-time sales exhibition situation of the product periodically and sends the photos to the supplier. In the implementation process of the process, due to dishonest and false newspaper of the seller, the following conditions often occur: (1) a seller takes a plurality of photos at one time and sequentially sends the photos to a supplier at a specified time; (2) the vendor copies the previously saved photographs at the specified time and sends them to the supplier. Therefore, it is important to know the real exhibition and sale conditions of the vendor in real time to confirm that the pictures sent by the vendor are taken on site.
Disclosure of Invention
The invention aims to overcome the problems, needs a method for avoiding photo reproduction, and solves the problem that in the existing image sign-in or verification process, false alarm is misreported, and the obtained picture is difficult to be guaranteed to be a scene photo shot in real time.
In order to achieve the purpose, the system for avoiding photo duplication comprises a background verification server and a panoramic shooting application program connected with the background verification server;
the panoramic shooting application program takes a certain point as a center, moves a camera, continuously shoots at a plurality of shooting positions, and then splices and synthesizes a plurality of shot photos, or splices and synthesizes photos of at least two continuous shooting positions which can be spliced to generate a panoramic photo; the panoramic shooting application program comprises a shooting module, a synthesis module and a communication module which are sequentially connected with one another.
A shooting module: the shooting module is connected with a camera of an intelligent terminal where the panoramic shooting application program is located, when a user opens the panoramic shooting application program and enters the shooting module, the camera on the intelligent terminal is started at first, then the user rotates the camera to continuously shoot at least 270 degrees or shoot images of at least two continuous shooting positions which can be spliced, and shooting duration is recorded during shooting. The camera is preferably a fixed focus lens.
A synthesis module: synthesizing the shot images in real time to obtain a panoramic photo;
a communication module: data exchange between the panoramic shooting application program and the background verification server is realized, the communication module can only send the directly shot panoramic picture to the background verification server, and the panoramic shooting application program 1 cannot send the picture stored in the mobile phone;
a background verification server: receiving a photo synthesized by a panoramic shooting application program in real time, determining a shooting time point, judging whether the photo is shot at a specified time, and judging whether the panoramic photo comprises appointed content and whether the photo is a copied photo. The background verification server comprises a time point confirmation module, an image comparison module and a database, wherein the time point confirmation module and the image comparison module are connected with the database;
the background verification server comprises a time point confirmation module, an object distance calculation module, a distance comparison module, an image comparison module and a database, wherein the time point confirmation module, the object distance calculation module, the distance comparison module and the image comparison module are all connected with the database, and the image comparison module, the object distance calculation module and the distance comparison module are sequentially connected; a time point confirmation module: and (3) subtracting the time length from the time when the background verification server receives the panoramic picture as a shooting time point, then judging whether the shooting time point is the required shooting time point, and recording and storing the result in a database.
An image comparison module: comparing the shot photos with standard graphs stored in a database through image comparison software or manually and directly comparing, judging whether the content on the shot photos is appointed shot content or not, whether the shot photos are panoramic photos or not, whether the panoramic photos are shot continuously at least 270 degrees or are shot at a plurality of continuous positions or not, obtaining the heights H of different objects related to the photos, and recording and storing the results in the database;
an object distance calculation module: inputting the heights of a plurality of objects in the picture, the actual heights of the objects and technical parameters of a camera during shooting, and calculating the object distance according to the imaging principle of the camera;
a distance comparison module: and comparing the object distances U of different objects calculated by the object distance calculation module with a set distance threshold value K, if the number of the objects with the distances U being larger than K exceeds a certain range, determining the photo as a photo of an actual shooting scene, if the number of the objects with the distances U being smaller than or equal to K exceeds a certain range, determining the photo as a suspected copy photo, and recording and storing the result in a database.
The invention relates to a method for avoiding photo reproduction, which specifically comprises the following steps:
(1) a user starts a terminal camera, then rotates the camera for at least 270 degrees to shoot or shoot images of at least two spliced continuous shooting positions, and records shooting duration during shooting;
(2) splicing and combining the multiple images rotationally shot in the step (1) or the images shot at the continuous shooting positions to obtain a panoramic picture;
(3) confirming that the shooting is finished, and sending the shot panoramic picture to a background verification server;
(4) the background verification server receives the panoramic picture, the time length subtracted from the time when the background verification server receives the panoramic picture is taken as a shooting time point, then whether the shooting time point is the required shooting time point or not is judged, and the result is recorded and stored in a database;
(5) comparing the shot photos with standard graphs stored in a database through image comparison software or manually and directly comparing, judging whether the content on the shot photos is appointed shot content or not, judging whether the panoramic photos are shot continuously at least 270 degrees or at a plurality of continuous positions or not, obtaining the heights H of different objects related in the photos, and recording and storing the results in the database;
(6) inputting the height of an object in a picture, the actual height of the object and technical parameters of a camera during shooting, and calculating the object distance according to the imaging principle of the camera;
(7) and comparing the object distances U of different objects calculated by the object distance calculation module with a set distance threshold value K, if the number of the objects with the distances U being larger than K exceeds a certain range, determining the photo as a photo of an actual shooting scene, if the number of the objects with the distances U being smaller than or equal to K exceeds a certain range, determining the photo as a suspected copy photo, and recording and storing the result in a database.
Compared with the prior art, the invention has the following advantages: the panoramic shooting application program can only send the panoramic photos shot in real time to the background verification server, so that the original panoramic photos stored in the intelligent terminal are prevented from being sent to the background verification server, and the authenticity of the field shooting of the panoramic photos is guaranteed; in addition, the existing panoramic photo is a plane picture, and is difficult to shoot in a panoramic shooting mode, so that the selection of the panoramic shooting mode effectively avoids directly copying the existing panoramic photo.
Drawings
Fig. 1 is a schematic structural diagram of a system for avoiding photo duplication according to embodiment 1.
Detailed Description
The invention is described in detail below with reference to the drawings and the detailed description.
Example 1
As shown in fig. 1, the system for avoiding photo duplication according to the present embodiment includes a background authentication server 10, and a panorama shooting application 1 connected to the background authentication server 10;
the panoramic shooting application program 1 is specifically to take a certain point as a center, move a camera, continuously shoot at a plurality of shooting positions, and then splice and synthesize a plurality of shot photos, or splice and synthesize at least two continuous shooting positions shot to generate a panoramic photo; the panoramic shooting application program comprises a shooting module 2, a synthesis module 3 and a communication module 4 which are sequentially connected with one another.
The shooting module 2: the shooting module 2 is connected with a camera of an intelligent terminal where the panoramic shooting application program is located, when a user opens the panoramic shooting application program, the user enters the shooting module 2, the camera on the intelligent terminal is started at first, then the user rotates the camera to continuously shoot at least 270 degrees or shoot images of at least two continuous shooting positions which can be spliced, and shooting duration is recorded during shooting. The camera is preferably a fixed focus lens.
Synthesis module 3: synthesizing the shot images in real time to obtain a panoramic photo;
and the communication module 4: data exchange between the panoramic shooting application program 1 and the background authentication server 10 is realized, for example, a synthesized panoramic photo is sent to the background authentication server 10; the communication module 4 can only send the directly shot panoramic photo to the background verification server 10, and the panoramic shooting application program 1 cannot send the photo stored in the mobile phone (such as a mobile phone album);
the background authentication server 10: receiving a photo synthesized by the panorama shooting application 1 in real time, determining a shooting time point, judging whether the photo is shot at a prescribed time, and judging whether the panorama photo includes agreed contents and whether the panorama photo is a reproduction photo. The background verification server 10 comprises a time point confirmation module 5, an object distance calculation module 6, a distance comparison module 7, an image comparison module 8 and a database 9, wherein the time point confirmation module 5, the object distance calculation module 6, the distance comparison module 7 and the image comparison module 8 are all connected with the database 9, and the image comparison module 8, the object distance calculation module 6 and the distance comparison module 7 are sequentially connected;
the time point confirmation module 5: the time of receiving the panoramic picture by the background verification server 10 is subtracted by the duration to be taken as a shooting time point, then whether the shooting time point is the required shooting time point is judged, and the result is recorded and stored in the database 9;
image comparison module 8: comparing the shot photos with standard graphs stored in a database through image comparison software or manually and directly comparing, judging whether the content on the shot photos is appointed shot content or not, whether the shot photos are panoramic photos or not, whether the panoramic photos are shot continuously at least 270 degrees or are shot at a plurality of continuous positions or not, obtaining the heights H of different objects related to the photos, and recording and storing the results in the database;
the object distance calculation module 6: the heights of a plurality of objects in the picture, the actual heights of the objects and technical parameters (such as focal length) of the camera during shooting are input, and the object distance is calculated according to the imaging principle of the camera. For example, according to the lens imaging formula, the camera and camcorder imaging formula is: 1/U +1/v is 1/f (formula 1), where U object distance, v image distance, and f focal distance. And u/v ═ H/H (equation 2), where H is the actual height of the object and H is the height of the object in the photograph. The formula 1 and the formula 2 are combined to form an equation set, and the object distances U of different objects in the picture can be calculated when H, H and f are known;
distance comparison module 7: the object distances U of different objects calculated by the object distance calculation module 6 are respectively compared with a set distance threshold value K, if the number of the objects with U being larger than K exceeds a certain range (for example, 50%), the photo is regarded as a photo of an actual shooting scene, if the number of the objects with U being smaller than or equal to K exceeds a certain range (for example, 50%), the photo is determined as a suspected copy photo, and the result record is stored in the database 9. The distance threshold K may be 50cm, because the object distance U does not exceed 50cm when the image is usually copied to a printed image or an image on an electronic device such as a mobile phone or an iPAD, and the distance threshold K may be set to other values as needed.
The intelligent terminal is equipped with the intelligent terminal application, and has the intelligent terminal of function and communication function of shooing, like equipment such as smart mobile phone, IPAD, and its function of shooing is realized through the camera, and communication function passes through wireless communication module (like the wifi module) or wired communication module and realizes.
The method for avoiding photo reproduction related to the embodiment specifically comprises the following steps:
(1) a user starts a terminal camera, then rotates the camera for at least 270 degrees to shoot or shoot images of at least two spliced continuous shooting positions, and records shooting duration during shooting;
(2) splicing and combining the multiple images rotationally shot in the step (1) or the images shot at the continuous shooting positions to obtain a panoramic picture;
(3) confirming that the shooting is finished, and sending the shot panoramic picture to a background verification server;
(4) the background verification server receives the panoramic picture, the time length subtracted from the time when the background verification server receives the panoramic picture is taken as a shooting time point, then whether the shooting time point is the required shooting time point or not is judged, and the result is recorded and stored in a database;
(5) comparing the shot photos with standard graphs stored in a database through image comparison software or manually and directly comparing, judging whether the content on the shot photos is appointed shot content or not, judging whether the panoramic photos are shot continuously at least 270 degrees or at a plurality of continuous positions or not, obtaining the heights H of different objects related in the photos, and recording and storing the results in the database;
(6) inputting the height of an object in a picture, the actual height of the object and technical parameters of a camera during shooting, and calculating the object distance according to the imaging principle of the camera;
(7) and comparing the object distances U of different objects calculated by the object distance calculation module with a set distance threshold value K, if the number of the objects with the distances U being larger than K exceeds a certain range, determining the photo as a photo of an actual shooting scene, if the number of the objects with the distances U being smaller than or equal to K exceeds a certain range, determining the photo as a suspected copy photo, and recording and storing the result in a database.
Claims (2)
1. A system for avoiding photo reproduction is characterized by comprising a background verification server and a panoramic shooting application program connected with the background verification server;
the panoramic shooting application program takes a certain point as a center, moves a camera, continuously shoots at a plurality of shooting positions, and then splices and synthesizes a plurality of shot photos, or splices and synthesizes photos of at least two continuous shooting positions which can be spliced to generate a panoramic photo; the panoramic shooting application program comprises a shooting module, a synthesis module and a communication module which are sequentially connected with one another;
a shooting module: the method comprises the steps that a shooting module is connected with a camera of an intelligent terminal where a panoramic shooting application program is located, when a user opens the panoramic shooting application program and enters the shooting module, the camera on the intelligent terminal is started firstly, then the user rotates the camera to continuously shoot at least 270 degrees or shoot images of at least two continuous shooting positions which can be spliced, shooting duration is recorded during shooting, and the camera is a fixed-focus lens;
a synthesis module: synthesizing the shot images in real time to obtain a panoramic photo;
a communication module: data exchange between the panoramic shooting application program and the background verification server is realized, the communication module can only send the directly shot panoramic picture to the background verification server, and the panoramic shooting application program cannot send the picture stored in the mobile phone;
a background verification server: receiving a photo synthesized by a panoramic shooting application program in real time, determining a shooting time point, judging whether the photo is shot at a specified time, and judging whether the panoramic photo comprises appointed content and whether the photo is a reproduction photo; the background verification server comprises a time point confirmation module, an object distance calculation module, a distance comparison module, an image comparison module and a database, wherein the time point confirmation module, the object distance calculation module, the distance comparison module and the image comparison module are all connected with the database, and the image comparison module, the object distance calculation module and the distance comparison module are sequentially connected;
an image comparison module: comparing the shot photos with standard graphs stored in a database through image comparison software or manually and directly comparing, judging whether the content on the shot photos is appointed shot content or not, whether the shot photos are panoramic photos or not, whether the panoramic photos are shot continuously at least 270 degrees or are shot at a plurality of continuous positions or not, obtaining the heights H of different objects related to the photos, and recording and storing the results in the database;
a time point confirmation module: subtracting the time length from the time when the background verification server receives the panoramic picture as a shooting time point, then judging whether the shooting time point is the required shooting time point, and recording and storing the result in a database;
an object distance calculation module: inputting the heights of a plurality of objects in the picture, the actual heights of the objects and technical parameters of a camera during shooting, and calculating the object distance according to the imaging principle of the camera;
a distance comparison module: and comparing the object distances U of different objects calculated by the object distance calculation module with a set distance threshold value K, if the number of the objects with the distances U being larger than K exceeds a certain range, determining the photo as a photo of an actual shooting scene, if the number of the objects with the distances U being smaller than or equal to K exceeds a certain range, determining the photo as a suspected copy photo, and recording and storing the result in a database.
2. The system for avoiding photo duplication of claim 1 specifically comprises the following steps:
(1) a user starts a terminal camera, then rotates the camera for at least 270 degrees to shoot or shoot images of at least two spliced continuous shooting positions, and records shooting duration during shooting;
(2) splicing and combining the multiple images rotationally shot in the step (1) or the images shot at the continuous shooting positions to obtain a panoramic picture;
(3) confirming that the shooting is finished, and sending the shot panoramic picture to a background verification server;
(4) the background verification server receives the panoramic picture, the time length subtracted from the time when the background verification server receives the panoramic picture is taken as a shooting time point, then whether the shooting time point is the required shooting time point or not is judged, and the result is recorded and stored in a database;
(5) comparing the shot photos with standard graphs stored in a database through image comparison software or manually and directly comparing, judging whether the content on the shot photos is appointed shot content or not, judging whether the panoramic photos are shot continuously at least 270 degrees or at a plurality of continuous positions or not, obtaining the heights H of different objects related in the photos, and recording and storing the results in the database;
(6) inputting the height of an object in a picture, the actual height of the object and technical parameters of a camera during shooting, and calculating the object distance according to the imaging principle of the camera;
(7) and comparing the object distances U of different objects calculated by the object distance calculation module with a set distance threshold value K, if the number of the objects with the distances U being larger than K exceeds a certain range, determining the photo as a photo of an actual shooting scene, if the number of the objects with the distances U being smaller than or equal to K exceeds a certain range, determining the photo as a suspected copy photo, and recording and storing the result in a database.
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