CN114708524A - Parcel image recognition method and device, electronic device and storage medium - Google Patents

Abstract

The application relates to a parcel image recognition method, a device, an electronic device and a storage medium, wherein the parcel image recognition method comprises the following steps: acquiring a first package image and a second package image to be identified, and determining an image display ratio between the first package image and the second package image; acquiring the size of a first package in the first package image and the size of a second package in the second package image, and calculating the ratio of the size of the second package to the size of the first package to obtain the package size ratio; and determining a first difference value of the image display proportion and the parcel size ratio, and judging that the first parcel is different from the second parcel when the first difference value is out of a preset numerical range. Through the method and the device, the problem that a plurality of images corresponding to the same parcel are mistakenly identified as different parcel images is solved, the accuracy of data statistics is improved, and the security inspection efficiency is improved.

Description

A package image recognition method, device, electronic device and storage medium

technical field

The present application relates to the field of image processing, and in particular, to a package image recognition method, device, electronic device and storage medium.

Background technique

In modern society, in order to quickly and effectively detect items that may threaten public safety, it is necessary to carry out security inspection of luggage carried by people in some places. Therefore, security inspection equipment is widely used in airports, stations, exhibition centers, scenic spots, gymnasiums and other places. With the development of artificial intelligence technology, the intelligent identification, classification and visual presentation of luggage items can be realized during security inspection, which greatly improves the detection rate of dangerous goods.

In the related art, intelligent analysis is performed by collecting the video output by the security inspection equipment. Usually, the output frame rate of the security inspection equipment is between 60 and 120 frames. . Due to the interference of factors such as water ripples, horizontal and vertical stripes in the image, the security inspector manipulates the image to zoom in and out during the process of the package passing through the security inspection equipment. There will be differences. As a result, multiple images formed by the same package are misjudged as images corresponding to different packages, and the data is identified and reported multiple times, which eventually leads to the storage of a large number of images of the same package, resulting in errors in data statistics and reduced security inspection efficiency.

Currently, in the related art, multiple images corresponding to the same package are mistakenly identified as different package images, and no effective solution has yet been proposed.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a package image recognition method, device, electronic device, and storage medium, so as to at least solve the problem in the related art that multiple images corresponding to the same package are mistakenly recognized as different package images.

In a first aspect, an embodiment of the present application provides a package image recognition method.

In some of these embodiments, the method includes:

acquiring the first package image and the second package image to be identified, and determining the image display ratio between the second package image and the first package image;

Obtain the size of the first package in the first package image and the size of the second package in the second package image, calculate the ratio of the size of the second package to the size of the first package, and obtain the package size ratio ;

A first difference between the image display ratio and the package size ratio is determined, and when the first difference is outside a preset value range, it is determined that the first package is different from the second package.

In some of these embodiments, the determining an image display ratio between the second package image and the first package image includes:

acquiring a first image display coefficient in the first packaged image, and a second image display coefficient in the second packaged image;

The ratio of the second image display coefficient to the first image display coefficient is calculated to obtain the image display ratio.

In some of these embodiments, the method further includes:

When the first difference is within a preset value range, identifying the quantity of the first item contained in the first package in the first package image and the second package in the second package image the quantity of the second item contained in the package;

When the quantity of the first item and the quantity of the second item are not equal, it is determined that the first package is not the same as the second package.

In some of these embodiments, the method further includes:

When the quantity of the first item and the quantity of the second item are equal, determining the category of the first item contained in the first package to obtain a first category set, and determining the second package the category of the second item contained in the second category to obtain a second category set;

When the first category set is different from the second category set, it is determined that the first package and the second package are different.

In some of these embodiments, the method further includes:

When the first category set is the same as the second category set, determine the correspondence between the first item and the second item, and calculate the size of each second item and the corresponding The ratio of the size of the first item to obtain the size ratio of multiple items;

Determine a second difference between the image display ratio and the size ratio of each item, and when at least one of the second differences is outside a preset value range, determine that the first package and the second package are not same.

In some of the embodiments, the determining the correspondence between the first item and the second item includes:

determining a first position of each of the first items in the first package image, and determining a second position of each of the second items in the second package image, based on the first position and the second position, to determine the correspondence between the first item and the second item; and/or,

According to the size of the first item and the size of the second item, the corresponding relationship between the first item and the second item is determined.

In some of the embodiments, the predetermined value range is -0.1 to 0.1.

In a second aspect, an embodiment of the present application provides a package image recognition device.

In some of these embodiments, the device includes an image display ratio determination module, a package size ratio calculation module and a package image recognition module:

The image display ratio determination module is used to obtain the first package image and the second package image to be recognized, and determine the image display ratio between the second package image and the first package image;

The package size ratio calculation module is used to obtain the size of the first package in the first package image and the size of the second package in the second package image, and calculate the size of the second package and the first package. The ratio of the package size to get the package size ratio;

The package image recognition module is used to determine the first difference between the ratio of the image display ratio and the package size, and when the first difference is outside the preset value range, determine the difference between the first package and the package size. The second package is not the same.

In a third aspect, an embodiment of the present application provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, when the processor executes the computer program Implement the package image recognition method described in the first aspect above.

In a fourth aspect, an embodiment of the present application provides a storage medium on which a computer program is stored, and when the program is executed by a processor, implements the method for recognizing a package image as described in the first aspect above.

Compared with the related art, the package image recognition method, device, electronic device, and storage medium provided in the embodiments of the present application determine the second package image and the second package image by acquiring the first package image and the second package image to be recognized. The image display ratio between the first package images, and obtain the size of the first package in the first package image and the size of the second package in the second package image, and calculate the size of the second package and the The ratio of the size of the first package is obtained, the package size ratio is obtained, and the first difference between the image display ratio and the package size ratio is determined, and when the first difference is outside the preset value range, it is determined that the The first package is different from the second package, which solves the problem in the related art that multiple images corresponding to the same package are mistakenly identified as different package images, improves the accuracy of data statistics, and improves the efficiency of security inspection.

The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below in order to make other features, objects and advantages of the application more apparent.

Description of drawings

The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The schematic embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation of the present application. In the attached image:

1 is a block diagram of a hardware structure of a terminal according to a package image recognition method according to an embodiment of the present application;

2 is a flowchart of a package image recognition method according to an embodiment of the present application;

3 is a flowchart of another method for identifying a package image according to an embodiment of the present application;

4 is a flowchart of a package image recognition method according to a preferred embodiment of the present application;

5 is a schematic diagram of a package image according to a package image recognition method according to a preferred embodiment of the present application;

FIG. 6 is a structural block diagram of a package image recognition device according to an embodiment of the present application.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application. In addition, it will also be appreciated that while such development efforts may be complex and lengthy, for those of ordinary skill in the art to which the present disclosure pertains, the techniques disclosed in this application Some changes in design, manufacture or production based on the content are only conventional technical means, and it should not be understood that the content disclosed in this application is not sufficient.

Reference in this application to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor a separate or alternative embodiment that is mutually exclusive of other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in this application may be combined with other embodiments without conflict.

Unless otherwise defined, the technical or scientific terms involved in this application shall have the usual meanings understood by those with ordinary skill in the technical field to which this application belongs. Words such as "a", "an", "an", "the" and the like mentioned in this application do not denote a quantitative limitation, and may denote the singular or the plural. The terms "comprising", "comprising", "having" and any of their variants referred to in this application are intended to cover non-exclusive inclusion; for example, a process, method, system, product or process comprising a series of steps or modules (units) The apparatus is not limited to the steps or units listed, but may further include steps or units not listed, or may further include other steps or units inherent to the process, method, product or apparatus. Words like "connected," "connected," "coupled," and the like referred to in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "plurality" referred to in this application means greater than or equal to two. "And/or" describes the association relationship between associated objects, indicating that there can be three kinds of relationships. For example, "A and/or B" can mean that A exists alone, A and B exist at the same time, and B exists alone. The terms "first", "second", "third", etc. involved in this application are only to distinguish similar objects, and do not represent a specific order for the objects.

The method embodiments provided in this embodiment may be executed in a terminal, a computer or a similar computing device. Taking running on a terminal as an example, FIG. 1 is a block diagram of a hardware structure of a terminal of a package image recognition method according to an embodiment of the present invention. As shown in FIG. 1 , the terminal may include one or more (only one is shown in FIG. 1 ) processor 102 (the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA) and The memory 104 for storing data, optionally, the above-mentioned terminal may further include a transmission device 106 and an input and output device 108 for communication functions. Those of ordinary skill in the art can understand that the structure shown in FIG. 1 is only for illustration, which does not limit the structure of the above-mentioned terminal. For example, the terminal may also include more or fewer components than shown in FIG. 1 , or have a different configuration than that shown in FIG. 1 .

The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer programs corresponding to the package image recognition method in the embodiment of the present invention. The processor 102 executes the computer programs stored in the memory 104 to execute Various functional applications and data processing implement the above method. Memory 104 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, memory 104 may further include memory located remotely from processor 102, and these remote memories may be connected to the terminal through a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

Transmission device 106 is used to receive or transmit data via a network. The specific example of the above-mentioned network may include a wireless network provided by a communication provider of the terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, NIC for short), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 may be a radio frequency (Radio Frequency, RF for short) module, which is used to communicate with the Internet in a wireless manner.

An embodiment of the present application provides a method for recognizing a package image. FIG. 2 is a flowchart of a method for recognizing a package image according to an embodiment of the present application. As shown in FIG. 2 , the process includes the following steps:

Step S201: Acquire a first package image and a second package image to be recognized, and determine an image display ratio between the second package image and the first package image.

In this embodiment, the first package image and the second package image to be identified may be acquired by a server with an intelligent analysis capability. Wherein, the first wrapping image and the second wrapping image may be two adjacent frames of images to be identified, or may be two frames of images to be identified separated from each other. Preferably, there may be an interval of 8 to 16 frames of images between the acquired first wrapping image and the second wrapping image. Further, the above-mentioned image display ratio between the second wrapping image and the first wrapping image may be the ratio of the size of the second wrapping image to the size of the first wrapping image. It should be noted that the image size described in this application is in a broad sense, and it may refer to either length, area, pixels, or the like.

Step S202: Obtain the size of the first package in the first package image and the size of the second package in the second package image, calculate the ratio of the size of the second package to the size of the first package, and obtain Package size ratio.

Each package image obtained in this embodiment of the present application includes a corresponding target package, that is, the first package image includes the first package, and the second package image includes the second package. The dimensions of the first package and the second package are obtained respectively. Similarly, the package size is also in a broad sense, which may refer to either length, area, pixels, or the like. Calculate the package size ratio in the case of a unified measurement object. For example, when the size of the second package is the height of the second package target box corresponding to the second package, the size of the first package is the height of the first package target box corresponding to the first package. When , the ratio of the height of the second wrapping target frame to the height of the first wrapping target frame is calculated to obtain the wrapping size ratio. It can be understood that the height of the target frame may be the length of the long side of the rectangular frame including the target.

Step S203, determining a first difference between the image display ratio and the package size ratio, and when the first difference is outside a preset value range, determine that the first package is different from the second package .

Correspondingly, following the example of step S202 in this embodiment, when the package size ratio is the ratio of the height of the second package target frame to the height of the first package target frame, the image display ratio should also be under the length measurement. The display ratio, for example, the image display ratio may be the ratio of the width of the second wrapping image to the width of the first wrapping image. At this time, a certain numerical range is preset, and when the first difference between the determined image display ratio and the package size ratio is outside the preset numerical range, it means that when changing between the two frames of images before and after, the package image and the package size are different. If the ratio of the changes is inconsistent, it is judged that the first package is not the same as the second package. It should be noted that the difference described in this application is outside the preset numerical range, excluding the case where the difference coincides with the end value of the numerical range, that is, when the difference is equal to a certain end value of the preset numerical range, The difference is considered to be within the preset value range.

Through the above steps, after obtaining the first package image and the second package image to be recognized, the present application determines the image display ratio between the two frames of images, and obtains the size of the first package and the size of the second package in the images, Calculate the package size ratio between the two packages; wherein, the image display ratio can indicate the size change from the first package image to the second package image, and the package size ratio indicates the size change from the first package to the second package; determine the above The first difference between the image display ratio and the package size ratio, by comparing the relationship between the first difference and the preset value range, when the first difference is outside the preset value range, it indicates that the package image and the package are The size of the package is inconsistent, and it is judged that the first package is different from the second package, which solves the problem in the related art that multiple images corresponding to the same package are mistakenly identified as different package images, and improves the accuracy of data statistics. Accuracy improves security inspection efficiency.

In some of these embodiments, step S201 further includes:

Step S2011, acquiring a first image display coefficient in the first packaged image and a second image display coefficient in the second packaged image.

Further, in the package image preview interface, the first image display coefficient in the first package image and the second image display coefficient in the second package image may be collected and acquired respectively.

Step S2012: Calculate the ratio of the second image display coefficient to the first image display coefficient to obtain the image display ratio.

The above-mentioned image display coefficient can indicate the size of the wrapped image. Therefore, by calculating the ratio of the second image display coefficient to the first image display coefficient, the size ratio between the two frames of wrapped images can be obtained, that is, the image display Proportion.

Based on this embodiment, the image display ratio is obtained by separately acquiring the image display coefficients of the two frames of images and calculating the ratio between the two image display coefficients, so that the calculation is simple and the obtained image display ratio is accurate.

The embodiment of the present application also provides a package image recognition method, as shown in FIG. 3 , which further includes:

Step S301, when the first difference is within a preset value range, identify the quantity of the first item contained in the first package in the first package image and all items in the second package image. the quantity of the second item contained in the second package.

When the first difference is within the preset value range, it indicates that the ratio change from the first package to the second package is consistent with the ratio change from the first package image to the second package image. Whether the first package is the same as the second package requires further comparison of the items contained in the two packages. Therefore, this embodiment further obtains the quantity of the first item and the quantity of the second item.

Step S302, when the quantity of the first item and the quantity of the second item are not equal, it is determined that the first package is not the same as the second package.

It can be understood that when the acquired quantity of the first item and the quantity of the second item are not equal, the first package is different from the second package.

Through the above steps, based on the comparison between the number of items contained in the packages, when the number of items in the two packages is not equal, it is determined that the first package is not the same as the second package, and the acquisition of the number of items is relatively simple and accurate, thereby further improving The efficiency and accuracy of the package similarities and differences judgments are improved.

The embodiment of the present application also provides a package image recognition method, which further includes:

Step S401, when the quantity of the first item is equal to the quantity of the second item, determine the type of the first item contained in the first package to obtain a first type set, and determine the The category of the second item contained in the second package to obtain a second category set.

Following the previous example, when the quantity of the first item and the quantity of the second item are equal, to distinguish the similarities and differences between the first package and the second package, it is necessary to further obtain the type of the first item and the type of the second item. Therefore, the above-mentioned first category set and second category set are obtained. The category set includes the category of each item contained in the corresponding package. For example, when the number of items in the first package and the second package is two, the first package contains a water cup and a wallet, and the first package contains two items. The second package contains a water cup and a mobile phone, then the first type set above may be {water cup, wallet}, and the second type set may be {water cup, mobile phone}.

Step S402, when the first category set is different from the second category set, it is determined that the first package and the second package are different.

It can be understood that when the first category set is different from the second category set, the first package is different from the second package.

Through the above steps, when the number of items in the two packages is equal, the type of each item is further identified and confirmed, and when the types of items in the two packages are not exactly the same, it is determined that the first package is different from the second package, thereby further improving the package. The accuracy of similarities and differences judgments.

The embodiment of the present application also provides a package image recognition method, which further includes:

Step S501, when the first category set is the same as the second category set, determine the correspondence between the first item and the second item, and calculate the size and correspondence of each of the second items. The ratio of the size of the first item to obtain a plurality of item size ratios.

In this embodiment, the first category set is the same as the second category set, for example, both are {water cups, mobile phones}, then the correspondence between the first item and the second item needs to be determined, assuming that the water cup in the first package is determined Corresponding to the water cup in the second package, the mobile phone in the first package corresponds to the mobile phone in the second package, then calculate the size ratio of the water cup in the second package and the water cup in the first package to obtain the water cup size ratio, and, Calculate the size ratio of the mobile phone in the second package and the mobile phone in the first package to obtain the size ratio of the mobile phone.

Step S502, determining a second difference between the image display ratio and the size ratio of each item, and when at least one of the second differences is outside a preset value range, determine the difference between the first package and the first package. The two packages are not the same.

Following step S501, respectively determining the second difference between the ratio of the image display ratio and the size of the water cup, and the second difference between the ratio of the image display ratio and the size of the mobile phone, when at least one of the second differences is outside the preset value range, Indicates that when transforming from the first package image to the second package image, there is at least one group of items whose size ratio change is inconsistent with the image size ratio change, then it is judged that the group of items corresponds to different items in the two frames of images, so that the first set of items is judged to be different. The package is not the same as the second package.

Through the above steps, under the condition that the number and type of items in the two packages are the same, the consistency between the size ratio change of the corresponding item and the image size ratio change is further compared. When at least one item has the size ratio change and the image size ratio change If the changes are inconsistent, it is judged that the first package is different from the second package, thereby further improving the accuracy of judging the similarities and differences of the packages.

In some embodiments, step S501 further includes;

Step S5011, determining a first position of each of the first items in the first package image, and determining a second position of each of the second items in the second package image, according to the The first position and the second position determine the correspondence between the first item and the second item.

Optionally, in this embodiment, the corresponding relationship between the first item and the second item may be determined based on the positional relationship. Specifically, the first package image and the second package image may be scanned and identified to obtain one of the above or the second package image respectively. Multiple first positions and second positions, map the first positions to the second package image one by one, select and judge the distance between each first position after the mapping and all the second positions in turn, and map the closest second position to the second position. Corresponding to the selected first position, so as to obtain the corresponding relationship between the first item and the second item.

and / or,

Step S5012: Determine the correspondence between the first item and the second item according to the size of the first item and the size of the second item.

Optionally, in this embodiment, the corresponding relationship between the first item and the second item may be determined according to the size of the first item and the size of the second item. Specifically, the image of the first package and the second package may be scanned and identified. image, get one or more first items and second items respectively, sort the first items by size, sort the second items by size, and sort the first item and the second item according to the sorting situation. Sizes correspond one-to-one, that is, the largest first item corresponds to the largest second item, the next largest first item corresponds to the next largest second item, and so on.

Through the above steps, the corresponding relationship between the first item and the second item is determined according to the position and/or size of the items, so as to avoid the situation of comparison between different types of items, so that the calculated item size ratio is accurate, thereby further Improves the accuracy of package similarities and differences judgments.

In some embodiments, the preset value range described in step S203 is -0.1 to 0.1.

Through the above steps, the application presets a reasonable range of values to avoid misjudging different packages as the same package when the preset value range is too large, and avoid misjudging the same package as different packages when the preset value range is too small, and further Improve the accuracy of package similarities and differences judgments.

The embodiments of the present application will be described and illustrated below through preferred embodiments.

FIG. 4 is a flowchart of a method for recognizing a package image according to a preferred embodiment of the present application. FIG. 5 is a schematic diagram of a package image of a package image recognition method according to a preferred embodiment of the present application. 4 and 5, the package image recognition method includes the following steps:

Step S4401, acquiring a first package image and a second package image. The first wrapped image is the first frame detection image shown in FIG. 5 , and the second wrapped image is the nth frame detected image shown in FIG. 5 .

Step S4402: Obtain a first image display coefficient in the first packaged image and a second image display coefficient in the second packaged image. In this embodiment, the display coefficient of the first image is 1.0, and the display coefficient of the second image is 1.8.

Step S4403: Calculate the ratio of the second image display coefficient to the first image display coefficient to obtain the image display ratio. Through calculation, it can be obtained that the image display ratio is 1.8.

Step S4404: Obtain the size of the first package in the first package image and the size of the second package in the second package image, calculate the ratio of the size of the second package to the size of the first package, and obtain Package size ratio. In this embodiment, the package width is used as the measure of the package size, the width of the first package is 14CM, the width of the second package is 25.5CM, and the package size ratio is calculated to be 1.821.

Step S4405, determining a first difference between the ratio of the image display ratio and the package size and a preset value range. Through calculation, the first difference is -0.021, and the preset value range is -0.1 to 0.1.

Step S4406, when the first difference is within the preset range, identify the quantity of the first item contained in the first package in the first package image and the number of items in the second package image. The quantity of the second item contained in the second package. As shown in FIG. 5 , it is recognized that the quantity of the first item is 2, and the quantity of the second item is 2.

Step S4407, when the quantity of the first item and the quantity of the second item are equal, determine the type of the first item contained in the first package to obtain a first type set, and determine the The category of the second item contained in the second package to obtain a second category set. As shown in FIG. 5 , the first type set is determined to be {knife, liquid}, and the second type set is determined to be {knife, liquid}.

Step S4408, when the first category set is the same as the second category set, determine the correspondence between the first item and the second item, and calculate the size and correspondence of each second item. The ratio of the size of the first item to obtain a plurality of item size ratios. In this embodiment, the width of the target frame corresponding to the item is selected as the measure of the size of the item. It can be understood that the width of the target frame refers to the length of the short side of the rectangular frame including the target. As shown in Figure 5, in the first frame detection image, the width of the target frame of the knife is 1CM, and the width of the target frame of the liquid is 2CM; The width of the target box is 3.643CM. The size ratios of the two items are calculated separately: 1.822, 1.8215.

Step S4409: Determine the second difference between the image display ratio and the size ratio of each item, and when the second difference is within a preset value range, determine the first package and the second The package is the same. When at least one of the second differences is outside the preset value range, it is determined that the first package is different from the second package; and when the second difference values are both within the preset value range, then It is judged that the first package is the same as the second package. Through calculation, it is determined that the corresponding two second differences in this embodiment are: -0.022, -0.0215 respectively. It can be seen that the two second differences are both within the preset range. At this time, it is judged that the first package and the second package are the same .

It should be noted that the steps shown in the above flow or the flow chart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical sequence is shown in the flow chart, in the In some cases, steps shown or described may be performed in an order different from that herein.

This embodiment also provides a package image recognition device, which is used to implement the above-mentioned embodiments and preferred implementations, which have been described and will not be repeated. As used below, the terms "module," "unit," "subunit," etc. may be a combination of software and/or hardware that implements a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, implementations in hardware, or a combination of software and hardware, are also possible and contemplated.

FIG. 6 is a structural block diagram of a package image recognition device according to an embodiment of the present application. As shown in FIG. 6 , the device includes an image display ratio determination module 20 , a package size ratio calculation module 30 and a package image recognition module 40 .

The image display ratio determination module 20 is configured to acquire the first package image and the second package image to be identified, and determine the image display ratio between the second package image and the first package image;

The package size ratio calculation module 30 is configured to obtain the size of the first package in the first package image and the size of the second package in the second package image, and calculate the size of the second package and the first package. The ratio of the size of a package to get the package size ratio;

The package image recognition module 40 is configured to determine the first difference between the image display ratio and the package size ratio, and when the first difference is outside the preset value range, determine that the first package is different from the package size. The second package is not the same.

It should be noted that each of the above modules may be functional modules or program modules, and may be implemented by software or hardware. For the modules implemented by hardware, the above-mentioned modules may be located in the same processor; or the above-mentioned modules may also be located in different processors in any combination.

This embodiment also provides an electronic device, including a memory and a processor, where a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any of the above method embodiments.

Optionally, the above-mentioned electronic device may further include a transmission device and an input-output device, wherein the transmission device is connected to the above-mentioned processor, and the input-output device is connected to the above-mentioned processor.

Optionally, in this embodiment, the above-mentioned processor may be configured to execute the following steps through a computer program:

acquiring the first package image and the second package image to be identified, and determining the image display ratio between the second package image and the first package image;

Obtain the size of the first package in the first package image and the size of the second package in the second package image, calculate the ratio of the size of the second package to the size of the first package, and obtain the package size ratio ;

A first difference between the image display ratio and the package size ratio is determined, and when the first difference is outside a preset value range, it is determined that the first package is different from the second package.

It should be noted that, for specific examples in this embodiment, reference may be made to the examples described in the foregoing embodiments and optional implementation manners, and details are not described herein again in this embodiment.

In addition, in combination with the package image recognition method in the above embodiment, the embodiment of the present application may provide a storage medium for implementation. A computer program is stored on the storage medium; when the computer program is executed by the processor, any one of the package image recognition methods in the foregoing embodiments is implemented.

Those skilled in the art should understand that the technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features of the above-described embodiments are not described. There is no contradiction in the combination of technical features, and it should be regarded as the scope of the description in this specification.

The above-mentioned embodiments only represent several embodiments of the present application, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the invention patent. It should be pointed out that for those skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the scope of protection of the patent of the present application shall be subject to the appended claims.

Claims (10)

1. A parcel image identification method is characterized by comprising the following steps:

acquiring a first package image and a second package image to be identified, and determining an image display proportion between the second package image and the first package image;

acquiring the size of a first parcel in the first parcel image and the size of a second parcel in the second parcel image, and calculating the ratio of the size of the second parcel to the size of the first parcel to obtain a parcel size ratio;

and determining a first difference value of the image display proportion and the parcel size ratio, and judging that the first parcel is different from the second parcel when the first difference value is out of a preset numerical range.

2. The parcel image recognition method of claim 1, wherein the determining an image display scale between the second parcel image and the first parcel image comprises:

acquiring a first image display coefficient in the first package image and a second image display coefficient in the second package image;

and calculating the ratio of the second image display coefficient to the first image display coefficient to obtain the image display scale.

3. The parcel image recognition method of claim 1 or 2, further comprising:

identifying a number of first items contained in the first parcel image and a number of second items contained in the second parcel image when the first difference value is within a preset range of values;

when the number of the first articles is not equal to that of the second articles, the first package and the second package are judged to be different.

4. The parcel image identification method of claim 3, further comprising:

determining a category of the first item contained in the first parcel to yield a first set of categories and determining a category of the second item contained in the second parcel to yield a second set of categories when the number of the first item and the number of the second item are equal;

when the first category set is different from the second category set, determining that the first parcel is different from the second parcel.

5. The parcel image identification method of claim 4, further comprising:

when the first kind set is the same as the second kind set, determining the corresponding relation between the first article and the second article, and calculating the ratio of the size of each second article to the size of the corresponding first article to obtain a plurality of article size ratios;

and determining a second difference value between the image display proportion and the size ratio of each article, and judging that the first package is different from the second package when at least one second difference value is out of a preset numerical range.

6. The parcel image recognition method of claim 5, wherein the determining a correspondence between the first item and the second item comprises:

determining a first position of each of the first items in the first parcel image and a second position of each of the second items in the second parcel image, the correspondence between the first and second items being determined in dependence on the first and second positions; and/or the presence of a gas in the gas,

and determining the corresponding relation between the first article and the second article according to the size of the first article and the size of the second article.

7. The parcel image recognition method according to claim 1 or 2, wherein the preset numerical value range is-0.1 to 0.1.

8. The parcel image recognition device is characterized by comprising an image display ratio determining module, a parcel size ratio calculating module and a parcel image recognition module, wherein the parcel size ratio calculating module comprises:

the image display proportion determining module is used for acquiring a first parcel image and a second parcel image to be identified and determining the image display proportion between the second parcel image and the first parcel image;

the parcel size ratio calculation module is configured to obtain a size of a first parcel in the first parcel image and a size of a second parcel in the second parcel image, and calculate a ratio of the size of the second parcel to the size of the first parcel to obtain a parcel size ratio;

the parcel image identification module is configured to determine a first difference between the image display ratio and the parcel size ratio, and when the first difference is outside a preset value range, determine that the first parcel is different from the second parcel.

9. An electronic device comprising a memory and a processor, wherein the memory has stored therein a computer program, and the processor is configured to execute the computer program to perform the package image recognition method of any one of claims 1 to 7.

10. A storage medium having a computer program stored thereon, wherein the computer program is configured to execute the package image recognition method according to any one of claims 1 to 7 when the computer program is executed.

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