JP7396102B2 - Code reading device, code reading method, and code reading program - Google Patents

Description

This disclosure relates to reading codes.

BACKGROUND ART Code reading devices are widely known that input information using codes in which data such as character strings, number sequences, symbol strings, etc. are represented as one-dimensional or two-dimensional images. For example, in a store, a code reader registers a product purchased by a customer by photographing a one-dimensional code (hereinafter also referred to as a barcode) or two-dimensional code attached to the product with a camera. Further, when guiding the user to a website, the code reader uses a camera to capture a two-dimensional code indicating a link to the website, thereby acquiring and displaying website information.

In such a code reading device, if a plurality of codes exist in an image taken with a camera, the user needs to select a desired code from the plurality of codes. An example of a code reading device capable of selecting a code from a plurality of codes is disclosed in Patent Document 1. The information processing device described in Patent Document 1 searches a database for registration information corresponding to a two-dimensional code selected from a plurality of two-dimensional codes, and displays the searched registration information on a display together with a captured image.

Japanese Patent Application Publication No. 2001-075971

In the information processing device of Patent Document 1, the user is required to repeatedly select and confirm the displayed registration information for each of the plurality of two-dimensional codes, and therefore cannot efficiently select the desired code. .

One of the objects of the present disclosure is to provide a code reading device, a code reading method, and a program that allow a user to efficiently select a desired code even when an image includes multiple codes. be.

A code reading device according to the present disclosure includes: an image acquisition unit that acquires a captured image including a plurality of codes; an information acquisition unit that acquires information indicated by each of the plurality of codes included in the captured image; and output means for outputting a display image in which information indicated by each code is associated with the code.

A code reading method according to the present disclosure acquires a captured image including a plurality of codes, acquires information indicated by each of the plurality of codes included in the captured image, and sets the information indicated by each of the plurality of codes to the code. Outputs the display image associated with.

A program according to the present disclosure includes a process of acquiring a captured image including a plurality of codes, a process of acquiring information indicated by each of the plurality of codes included in the captured image, and a process of obtaining information indicated by each of the plurality of codes. A computer is caused to perform a process of outputting a display image associated with the code.

According to the present disclosure, when an image includes a plurality of codes, a user can efficiently select a desired code.

FIG. 1 is a block diagram illustrating the configuration of a code reading device 100 according to a first embodiment. It is a flowchart showing an example of the operation of the code reading device 100 according to the first embodiment. 3 is a diagram showing an example of a display image 30. FIG. 3 is a diagram showing another example of a display image 30. FIG. FIG. 2 is a block diagram illustrating the configuration of a code reading device 200 according to a second embodiment. It is a flowchart which shows an example of operation of code reading device 200 concerning a 2nd embodiment. FIG. 3 is a block diagram illustrating the configuration of a mobile terminal 500 according to a third embodiment. FIG. 7 is a block diagram illustrating a system configuration of a first specific example according to a third embodiment. FIG. 5 is a diagram illustrating an example of the operation of a mobile terminal 500 according to a first specific example. FIG. 6 is a diagram illustrating another example of the operation of the mobile terminal 500 according to the first specific example. FIG. 7 is a block diagram illustrating a system configuration of a second specific example according to a third embodiment. FIG. 7 is a diagram illustrating an example of information in which a product ID and a product name are associated with each other according to a second specific example. FIG. 7 is a diagram illustrating an example of information in which a customer ID and a product purchased by the customer are associated with each other according to a second specific example. 7 is a diagram illustrating an example of a screen displayed by the display unit 300 according to a second specific example. FIG. 3 is a diagram showing another example of a display image 30. FIG. 3 is a diagram showing another example of a display image 30. FIG. It is a figure which shows the example of a code and the information which a code shows. 3 is a diagram showing another example of a display image 30. FIG. FIG. 3 is a diagram illustrating a scene in which a code is read. FIG. 2 is a diagram illustrating a hardware configuration.

Embodiments of the present disclosure will be described below with reference to the drawings.

[First embodiment]
(composition)
FIG. 1 is a block diagram illustrating the configuration of a code reading device 100 according to the first embodiment. The code reading device 100 includes an image acquisition section 101, an information acquisition section 102, and an output section 103. The image acquisition unit 101, the information acquisition unit 102, and the output unit 103 are embodiments of an image acquisition unit, an information acquisition unit, and an output unit of the present disclosure, respectively.

The image acquisition unit 101 acquires a captured image including a plurality of codes. The code is printed on various media using, for example, ink. Further, the code may be projected onto an object by a projector or displayed on a display. The code is, for example, a barcode or a two-dimensional code. Codes represent data such as character strings, number sequences, symbol strings, etc., depending on the width of the barcode and the arrangement of dots on the two-dimensional code.

The information acquisition unit 102 acquires information indicated by each of the plurality of codes included in the captured image. Here, for each of the plurality of codes, the information acquisition unit 102 converts the width of the barcode and the arrangement of dots of the two-dimensional code into data such as a character string, number string, symbol string, etc. according to a predetermined rule. Rules for converting codes into data are stored in advance in, for example, a storage unit (not shown).

The information acquisition unit 102 then acquires, for each of the plurality of codes, information indicated by the code based on data converted from the code. Here, the information acquisition unit 102 may use the data (character string, numerical sequence, symbol string, etc.) itself converted from the code as the information indicated by the code. The information acquisition unit 102 may also use information (words, sentences, images, etc.) associated with data (character strings, numerical sequences, symbol strings, etc.) converted from the code as information indicated by the code. In this case, the information acquisition unit 102 acquires information associated with the data converted from the code, by referring to the correspondence between data and information, which is stored in advance in a storage unit (not shown), for example.

The output unit 103 receives the captured image from the image acquisition unit 101 and receives the information indicated by the code from the information acquisition unit 102. The output unit 103 outputs a display image in which information indicated by each of the plurality of codes is associated with the code. Here, the output unit 103 generates a display image and outputs it to a display unit (not shown).

The display image output by the output unit 103 will be explained using the drawings. 3 and 4 are diagrams each showing an example of the display image 30. In FIGS. 3 and 4, the number sequence 31 is an example in which the information indicated by the code is data (number sequence) converted from the code. Further, in FIGS. 3 and 4, a URL (Uniform Resource Locator) 32 is an example in which the information indicated by the code is data converted from the code (character string indicating the URL).

The output unit 103 may associate the code with the information indicated by the code using a leader line or an arrow. In FIG. 3, the code included in the captured image and the information indicated by the code are associated with each other by arrows in the displayed image.

The output unit 103 also outputs an image in which an identifier assigned to each of a plurality of codes is associated with the code, and an image in which information indicated by each of the multiple codes is associated with an identifier assigned to the code. An image including the following may be output as a display image. In FIG. 4, each of the plurality of codes and the information indicated by the code are associated with each other by a code identifier 34. The aspect of the displayed image is not limited to the examples shown in FIGS. 3 and 4.

(Operation example)
Hereinafter, the operation of the code reading device 100 in the first embodiment will be explained using FIG. 2. FIG. 2 is a flowchart showing an example of the operation of the code reading device 100 according to the first embodiment. When the camera captures an image including a plurality of codes, the image acquisition unit 101 acquires the captured image (step S11). The information acquisition unit 102 acquires information indicated by each of the plurality of codes included in the captured image (step S12). The output unit 103 outputs a display image in which information indicated by each of the plurality of codes is associated with the code (step S13).

(effect)
According to the first embodiment, even when a captured image includes a plurality of codes, the user can efficiently select a code. The reason is that the image acquisition unit 101 acquires a captured image including a plurality of codes, the information acquisition unit 102 acquires information indicated by each of the plurality of codes, and the output unit 103 acquires the information indicated by each of the plurality of codes. This is to output a display image in which the information shown is associated with the code.

Furthermore, if an explanation is printed along with the code on the medium on which the code is printed, the explanation may not match the actual explanation of the code. Further, the medium on which the code is printed may not include an explanation of the code. According to the first embodiment, even in these cases, the user can confirm the information indicated by the code. This is because the output unit 103 outputs a display image in which the information indicated by the code is associated with the code.

[Second embodiment]
(composition)
FIG. 5 is a block diagram illustrating the configuration of a code reading device 200 according to the second embodiment. The code reading device 200 according to the second embodiment differs from the code reading device 100 according to the first embodiment in that it includes an execution unit 104. The execution unit 104 is an embodiment of an execution unit of the present disclosure. Regarding the configurations of the image acquisition unit 101, information acquisition unit 102, and output unit 103 according to the second embodiment, the same configuration as the image acquisition unit 101, information acquisition unit 102, and output unit 103 according to the first embodiment will be described in detail. The explanation will be omitted.

The display image output by the output unit 103 is displayed on a display unit (not shown). Based on the displayed display image, the user understands the information indicated by the code and selects the code. The execution unit 104 receives the selection of a code and executes the process associated with the selected code. The processing executed by the execution unit 104 differs depending on the application included in the code reading device 200. A specific example of the process executed by the execution unit 104 will be described later in the description of the third embodiment of the present disclosure.

(Operation example)
The operation of the code reading device 200 in the second embodiment will be described below using FIG. 6. FIG. 6 is a flowchart showing an example of the operation of the code reading device 200 according to the second embodiment.

When the camera captures an image including a plurality of codes, the image acquisition unit 101 acquires the captured image from the camera (step S11). The information acquisition unit 102 acquires information indicated by each of the plurality of codes included in the captured image (step S12). The output unit 103 outputs a display image in which information indicated by each of the plurality of codes is associated with the code (step S13). When the user selects a code based on the displayed image, the execution unit 104 executes the process associated with the selected code (step S14).

(effect)
According to the second embodiment, even when a captured image includes a plurality of codes, processing associated with the code desired by the user can be efficiently executed. This is because the output unit 103 outputs a display image in which information indicated by the code is associated with the code, and the execution unit 104 executes the process associated with the selected code.

[Third embodiment]
(composition)
FIG. 7 is a block diagram illustrating the configuration of a mobile terminal 500 according to the third embodiment. A mobile terminal 500 according to the third embodiment includes the code reading device 200 according to the second embodiment, a display section 300, a camera 400, and a communication section 410. Regarding the code reading device 200, detailed description of the same configuration as that in the second embodiment will be omitted.

The display unit 300 displays the display image output by the output unit 103. Display unit 300 may be, for example, a touch panel. Further, the display unit 300 accepts the selection of a code by the user. The user selects a code by touching the code or the area of information indicated by the code on the display unit 300. The display unit 300 passes information indicated by the selected code to the execution unit 104.

The camera 400 captures an image including a plurality of codes, and transmits the captured image to the image acquisition unit 101.

The execution unit 104 receives information indicated by the selected code from the display unit 300, and executes processing associated with the selected code. Two specific examples of the processing associated with the selected code, which is executed by the execution unit 104, will be shown below.

- First Specific Example As a first specific example, a specific example will be described in which information indicated by each of a plurality of codes indicates an information acquisition source. For example, the information indicated by each of the plurality of codes may be a URL indicating a web page. In this case, for example, the mobile terminal 500 is a terminal owned by the user, and the image acquisition unit 101, the information acquisition unit 102, and the output unit 103 are realized by an application program of a camera included in the mobile terminal 500. Further, the execution unit 104 is realized by a web browser. The execution unit 104 acquires and displays the content of the web page indicated by the URL as the acquisition destination information indicated by the selected code. FIG. 8 is a block diagram illustrating the configuration of a system according to the first specific example. In FIG. 8, a communication unit 410 is communicably connected to a web server 610.

FIG. 9A is a diagram illustrating an example of the operation of the mobile terminal 500 according to the first specific example. The captured image acquired by the image acquisition unit 101 includes a plurality of codes indicating URLs. The output unit 103 outputs a display image 30 in which the URL 32 acquired by converting the code by the information acquisition unit 102 is associated with the code. As shown in FIG. 9A, the display unit 300 displays a display image 30.

When the user selects a code, the execution unit 104 acquires the content of the web page from the web server via the communication unit 410 based on the URL indicated by the selected code. The execution unit 104 then displays the acquired content 60 on the display unit 300, as shown in FIG. 9A.

In addition, in the above-mentioned example, the URL 32 was displayed in association with the code as information indicated by each of the plurality of codes in the display image 30. The present invention is not limited to this, and information obtained based on a URL may be used as the information indicated by each of the plurality of codes in the display image 30.

FIG. 9B is a diagram illustrating another example of the operation of the mobile terminal 500 according to the first specific example. In the example of FIG. 9B, in the display image 30, an image 33 is displayed in addition to the URL 32 as information indicated by each of the plurality of codes. The image 33 is a thumbnail image of the web page (reduced image of the web page) obtained based on the URL. Note that the output unit 103 may use the title of the web page obtained based on the URL instead of a thumbnail image like the image 33 as the information indicated by the code. Furthermore, when a thumbnail image or title of a web page is displayed, the URL 32 may be omitted. By looking at the display image 30, the user can grasp the outline of the link destination of the URL 32 corresponding to each of the plurality of codes before selecting the code.

Further, in the above example, the information acquired by the execution unit 104 was information on the URL indicated by the selected code. The information acquired by the execution unit 104 is not limited to this, and may be other information as long as it can be acquired based on the information indicated by each of the plurality of codes (information indicating the acquisition source). For example, assume that the information indicated by each of the plurality of codes is information that specifies a social network service (SNS) account. In this case, for example, the mobile terminal 500 is a terminal owned by the user, and the image acquisition unit 101, the information acquisition unit 102, the output unit 103, and the execution unit 104 are realized by an SNS application program. The execution unit 104 acquires and displays the profile information corresponding to the SNS account as the acquisition source information indicated by the selected code.

In this case, the captured image acquired by the image acquisition unit 101 includes multiple codes that identify the account. The information acquisition unit 102 acquires the account name indicated by the code. The output unit 103 outputs a display image in which the captured code is associated with an account name. The execution unit 104 obtains and displays profile information corresponding to the account name based on the selected code.

The information identifying the account may be an account name. Note that the information acquisition unit 102 collects, as information indicated by each of the plurality of codes, a thumbnail image of the profile information corresponding to the account name, a part of the profile information (for example, an image or name of the user corresponding to the account name, etc.) may also be used. In this case, the output unit 103 outputs a display image in which a part of the profile is associated with the code.

-Second Specific Example As a second specific example, a specific example will be described in which the information indicated by each of a plurality of codes indicates an identifier of a product. For example, the information indicated by each of the plurality of codes may be an identifier (hereinafter also referred to as ID (Identifier)) of a product purchased by the user.

In stores such as convenience stores and supermarkets, customers use mobile terminals 500 to read codes attached to products and store the purchased products in PoS server 620. In this case, the image acquisition unit 101, the information acquisition unit 102, the output unit 103, and the execution unit 104 are realized by, for example, a product registration application program included in the mobile terminal 500.

If it is not possible to directly attach a code to a product, for example, codes for multiple products are printed on a code sheet. Since a plurality of codes are printed close to each other on the code sheet, the camera 400 included in the mobile terminal 500 captures an image including the plurality of codes.

FIG. 10 is a block diagram illustrating the configuration of a system according to a second specific example. In FIG. 10, a communication unit 410 is communicably connected to a PoS (Point of Sales) server 620.

FIG. 11 is a diagram showing an example of information in which a product ID and a product name are associated, which is stored in an external device (not shown). FIG. 12 is a diagram showing an example of information stored by the PoS server 620 in which a customer ID is associated with information regarding a product purchased by the customer.

FIG. 13 is a diagram showing an example of a screen displayed by the display unit 300. When the customer presses the "add product" button, camera 400 is activated and images the code. The image acquisition unit 101 acquires a captured image. The information acquisition unit 102 converts the code 20 attached to the product based on the captured image, and acquires the number sequence 31 that is the product ID. The output unit 103 outputs, for example, a display image 30 in which the captured code and product ID are associated with each other.

The information acquisition unit 102 may refer to the database shown in FIG. 11 in which product IDs and product names are associated with each other, and obtain the product name associated with the code. In this case, the output unit 103 outputs, for example, a display image 30 in which the captured code 20 and the acquired product name 35 are associated with each other.

The customer views the displayed image 30 and selects the code corresponding to the product to be purchased. In FIG. 13, the user has selected the product name 35 "Cafe Latte (M)" indicated by the code 20 to which the code identifier 34 "1 in a circle" is attached. The execution unit 104 transmits the product ID of the selected product to the PoS server 620 via the communication unit 410. The communication unit 410 transmits, for example, a customer ID to the PoS server 620. Based on the received information, the PoS server 620 updates the information in which the customer ID shown in FIG. 12 is associated with the product purchased by the customer. The execution unit 104 may receive a list of registered products from the PoS server 620 as the content 60. In this case, as shown in FIG. 13, the display unit 300 displays content 60 in which "M size cafe latte" is added to the registered product screen.

If the customer presses the "Add Product" button again, he or she can read more product IDs. By pressing the "Payment" button, the customer can purchase the registered product. The mobile terminal 500 may be a smartphone owned by a customer, or may be a terminal rented at a store.

In the third embodiment, the case where the display unit 300 included in the mobile terminal 500 accepts code selection has been described above, but the configuration of the mobile terminal 500 is not limited to this. An input device (not shown), such as a keyboard or a mouse, may be connected to the mobile terminal 500. The execution unit 104 included in the mobile terminal 500 may receive a code selection from an input device.

(effect)
FIG. 18 is a diagram illustrating a scene in which a code is read. When capturing an image of a code using a customer's mobile terminal, it is necessary to hide other codes by hand or paper, as shown in FIG. 18, in order to execute processing related to the desired code.

According to the third embodiment, when a captured image includes a plurality of codes, the user can efficiently select the code. According to the mobile terminal 500 according to the present disclosure, even when codes indicating URLs are arranged close to each other, codes can be easily selected. Furthermore, according to the mobile terminal 500 according to the present disclosure, it is possible to select a desired barcode and register a product.

[Example of modification of display image]
Another example of the display image 30 will be explained. The output unit 103 may output a display image in which the display image is divided into a plurality of areas, the captured image is arranged in one area, and the information indicated by the code is arranged in the other area. 14 and 15 are diagrams showing other examples of the display image 30.

In the example of FIG. 14, the display image 30 is divided into an upper area and a lower area. The captured image is arranged in the upper area, and the information indicated by the code is arranged in the lower area. Six codes are imaged, and information indicated by two of the six codes is arranged in the lower area. Arrow buttons 54 for displaying other codes may also be provided. The user presses the arrow button 54 to display information indicated by other codes. The user may display information indicated by other codes by swiping the area where the information indicated by the code is arranged. Moreover, the arrow button 54 does not need to be arranged to indicate that there are no other codes that are not displayed. Furthermore, an end mark 55, which is a grayed-out arrow button, may be arranged.

In the example of FIG. 15, the captured image is reduced and placed at the top, and the information indicated by the code is placed over the entire screen. If all of the information indicated by the code cannot be displayed on one screen, a frame 53 indicating which code the information corresponding to is being displayed may be placed in a superimposed manner on the captured image. The output unit 103 may output a display image 30 as shown in FIGS. 14 and 15.

FIG. 16 is a diagram showing an example of codes and information indicated by the codes. As shown in FIG. 16, code B may form part of code A. At this time, the information acquisition unit 101 of the code reading device acquires the information of code B without letting the user who is trying to acquire the information of code A recognize it, and the execution unit 104 executes a process that is not intended by the user. There is a possibility that it will happen.

FIG. 17 is a diagram showing another example of the display image 30. In order to solve the above problem, the output unit 103 displays the display image 30 when a part of a specific code forms another code, as shown in FIG. Inclusion may be indicated by a plurality of arrows. This allows the user to check the content indicated by each code before causing the execution unit 104 to execute the process.

Further, the output unit 103 may indicate, in the display image 30, the number of codes included in the captured image, as shown in FIG. In the example of FIG. 17, it is displayed that the captured image includes five codes. By showing the number of codes included in the captured image in the display image, the user can confirm whether the number of codes recognized by the user matches the number of codes acquired by the code reading device. If the numbers do not match, the user can determine that one code may form part of another code.

[Hardware configuration]
FIG. 19 is a diagram illustrating the hardware configuration. The above procedure can be realized by a program that causes the computer 9000, which functions as the code reading device 100, 200, and the mobile terminal 500, to realize the functions of the code reading device 100, 200, and the mobile terminal 500. Such a computer is exemplified by a configuration including a CPU (Central Processing Unit) 9010, a communication interface 9020, a memory 9030, and an auxiliary storage device 9040 in FIG. That is, the CPU 9010 in FIG. 19 may execute the program to update each calculation parameter stored in the auxiliary storage device 9040 or the like.

Each part (processing means, function) of the device shown in each of the above-described embodiments causes the processor installed in the code reading device 100, 200 or the mobile terminal 500 to execute each of the above-described processes using its hardware. This can be realized by a computer program.

The present disclosure has been described above using the above-described embodiment as an exemplary example. However, the present disclosure is not limited to the embodiments described above. That is, various aspects that can be understood by those skilled in the art can be applied to the present disclosure within the scope of the present disclosure.

100, 200 Code reading device 101 Image acquisition unit 102 Information acquisition unit 103 Output unit 104 Execution unit 20 Code 30 Display image 31 Number sequence 32 URL
33 Image 34 Code identifier 35 Product name 300 Display section 400 Camera 410 Communication section 500 Mobile terminal 53 Frame 54 Arrow button 55 End mark 610 Web server 620 PoS server 60 Content

Claims (10)

an image acquisition means for acquiring a captured image including a plurality of codes each representing a product identifier, taken by a camera included in a mobile terminal used by the customer ;
information acquisition means for acquiring a product identifier indicated by each of the plurality of codes included in the captured image and a product name associated with the product identifier ;
A display that includes the plurality of codes and the product name associated with a product identifier indicated by each of the plurality of codes, and in which the code and the product name associated with the product identifier indicated by the code are associated. output means for outputting an image to a display section of the mobile terminal ;
Accepting the selection of the code touched on the display image displayed on the display unit, or the selection of the code associated with the product name touched on the display image, and the selected code indicates transmitting a product identifier to a PoS server; receiving from the PoS server a list of registered products in which the product associated with the transmitted product identifier is registered as a product to be purchased by the customer; Execution means for executing processing to be displayed on the display unit;
A code reading device equipped with. The image acquisition means acquires the captured image further including a plurality of codes each indicating a character string of a URL (Uniform Resource Locator),
The information acquisition means acquires a character string of a URL indicated by each of a plurality of codes included in the captured image, and an image indicating an outline of a web page specified by the URL,
The output means includes the plurality of codes, a character string of the URL indicated by each of the plurality of codes, and an image indicating the summary, and outputs the code, the character string of the URL indicated by the code, and the summary. outputting the display image that is displayed in association with the image shown;
The execution means receives the selection of the code touched in the display image, or the selection of the code associated with the character string of the URL touched in the display image or the image showing the outline, and selects the code. execute the process of displaying the web page of the URL indicated by the code.
The code reading device according to claim 1. Outputting the display image in which the code and the information indicated by the code are displayed in correspondence with each other using leader lines or arrows.
The code reading device according to claim 1 or 2. The output means includes an image in which an identifier assigned to each of the plurality of codes is associated with the code , and an image in which the information indicated by each of the plurality of codes is associated with the identifier assigned to the code. The code reading device according to any one of claims 1 to 3 , wherein the code reading device outputs the display image including an image obtained by reading a code. The identifier is a consecutive number assigned to each of the plurality of codes.
The code reading device according to claim 4. The output means outputs the display image in which the display image is divided into a plurality of areas, the captured image is arranged in one of the areas, and the information indicated by the code is arranged in another area. 6. The code reading device according to any one of 1 to 5. The display image includes information indicating the number of codes included in the captured image when a part of a specific code among the plurality of codes forms another code. The code reading device according to any one of the items. 1. The display image includes information indicating that the specific code includes another code when a part of the specific code among the plurality of codes forms another code. 8. The code reading device according to any one of items 7 to 7. Obtain a captured image containing multiple codes each representing a product identifier, taken with a camera of a mobile terminal used by the customer ,
obtaining a product identifier indicated by each of a plurality of codes included in the captured image and a product name associated with the product identifier ;
A display that includes the plurality of codes and the product name associated with a product identifier indicated by each of the plurality of codes, and in which the code and the product name associated with the product identifier indicated by the code are associated. Outputting the image to the display section of the mobile terminal ,
Accepting the selection of the code touched on the display image displayed on the display unit, or the selection of the code associated with the product name touched on the display image, and the selected code indicates transmitting a product identifier to a PoS server; receiving from the PoS server a list of registered products in which the product associated with the transmitted product identifier is registered as a product to be purchased by the customer; A code reading method that executes a process to be displayed on the display unit . A process of acquiring a captured image including a plurality of codes each representing a product identifier, taken by a camera of a mobile terminal used by the customer ;
a process of acquiring a product identifier indicated by each of a plurality of codes included in the captured image and a product name associated with the product identifier ;
A display that includes the plurality of codes and the product name associated with a product identifier indicated by each of the plurality of codes, and in which the code and the product name associated with the product identifier indicated by the code are associated. a process of outputting an image to a display section of the mobile terminal ;
Accepting the selection of the code touched on the display image displayed on the display unit, or the selection of the code associated with the product name touched on the display image, and the selected code indicates transmitting a product identifier to a PoS server; receiving from the PoS server a list of registered products in which the product associated with the transmitted product identifier is registered as a product to be purchased by the customer; a process for displaying on the display unit;
A code reading program that causes a computer to execute.

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