JP5614355B2 - Code reader and command acquisition method - Google Patents

Description

  The present invention relates to a code reader, and more particularly to a command acquisition technique using a code symbol by the code reader.

  Patent Document 1 discloses a technology that does not require an installation space and can realize an input system that can be easily operated even by an unfamiliar user. In this technique, a bar code composed of a command part and a parameter part is used, and the bar code reader reads the command part and the parameter part from the bar code recorded on the recording sheet and stores them in the parameter part. The command stored in the command part is executed using the parameter.

JP 2005-11279 A

  However, in the technique described in Patent Document 1, since a command and a parameter are stored as a pair in a barcode, even if the command is the same, a different barcode must be prepared if the parameters are different. . For this reason, even if the command is the same, if the parameters are different, the user must read different barcodes with the barcode reader, and the work is complicated.

  In addition, although the method of setting the parameter with respect to the command read from the barcode using input devices, such as a keyboard and a touch panel, is also considered, in this case, it is necessary for a user to touch and operate an input device. For this reason, the input device must be installed within the reach of the user. Moreover, there is a possibility that a plurality of users may touch it, and there are also users who do not like it hygienically.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to obtain a command acquired from a code symbol such as a one-dimensional barcode or a two-dimensional barcode without using an input device such as a keyboard or a touch panel. It is to provide a technique capable of setting a desired parameter.

  In order to solve the above problem, in the present invention, the code reader performs image recognition processing on the video data of the subject to detect a code symbol, acquires a command from the code symbol, and also obtains a series of video data of the subject. The parameter is specified based on the movement of the code symbol detected from the above. Then, the specified parameter is set in the acquired command and is executed by itself or by another device.

For example, the present invention is a code reader that reads a code symbol to obtain a command,
Imaging means for imaging a subject and outputting video data;
Code detection means for performing image recognition processing on a series of video data output from the imaging means, and sequentially detecting the code symbols and the coordinate information of the code symbols from the series of video data ;
A command acquiring means for acquiring the command and additional information from the code symbol that is detected by said code detecting means,
Motion detecting means for detecting the movement of the code symbol based on the coordinate information of the code symbol sequentially detected by the code detecting means;
Display means for displaying the code symbol detected by the code detection means together with the additional information acquired by the command acquisition means and trajectory data representing the movement of the code symbol detected by the motion detection means;
Based on the motion of the code symbol that is detected by the motion detection means, have a, and a parameter setting means for setting a parameter of the command acquired by the command acquisition unit,
The motion detection means includes
When the displacement amount of the coordinate information of the code symbol sequentially detected by the code detection means becomes a predetermined time or more and a predetermined value or less, the code detection means sequentially detects from the series of video data until then. The trajectory data representing the movement of the code symbol specified by the coordinate information of the code symbol is passed to the parameter setting means,
The display means includes
When the displacement amount of the coordinate information of the code symbol sequentially detected by the code detecting means becomes a predetermined time or more and a predetermined value or less, it is sequentially detected from the series of video data by the code detecting means thereafter. Without displaying trajectory data representing the movement of the code symbol specified by the coordinate information of the code symbol,
The parameter setting means includes
The trajectory data representing the movement of the code symbol received from the motion detection unit is set as a parameter to the command acquired by the command acquisition unit .
Alternatively, the present invention is a code reader that reads a code symbol to obtain a command,
Imaging means for imaging a subject and outputting video data;
Code detection means for performing image recognition processing on a series of video data output from the imaging means, and sequentially detecting the code symbols and the coordinate information of the code symbols from the series of video data;
Command acquisition means for acquiring the command and a plurality of parameter candidates from the code symbol detected by the code detection means;
Display means for displaying the code symbol detected by the code detection means, the plurality of parameter candidates acquired by the command acquisition means, and a cursor used for designating the parameter candidates;
When the displacement amount of the coordinate information of the code symbol sequentially detected by the code detection means becomes a predetermined time or more and a predetermined value or less, the code detection means sequentially detects from the series of video data until then. Motion detecting means for detecting the movement of the code symbol specified by the coordinate information of the code symbol;
Based on the movement of the code symbol detected by the movement detection means, a parameter is selected from the plurality of parameter candidates displayed on the display means, and the parameter is acquired by the command acquisition means. Parameter setting means for setting to
The parameter setting means includes
When the operation previously associated with the movement of the code symbol detected by the movement detecting unit is a cursor movement, the cursor displayed on the display unit is moved, and parameter candidates designated by the cursor are selected. If the change is made and the operation is determined, the parameter candidate designated by the cursor displayed on the display means is selected as a parameter .

  According to the present invention, a user can select a command obtained from a code symbol without using an input device by holding the subject on which the code symbol is recorded over the code reading device and giving the subject a predetermined movement. Parameters can be set.

FIGS. 1A and 1B are diagrams for explaining an operation method of the code reader 1 according to the embodiment of the present invention. FIG. 2 is a schematic functional configuration diagram of the code reading device 1. FIG. 3 is a schematic diagram of the subject 2. FIG. 4 is a diagram schematically showing the registration contents of the guidance storage unit 111. FIG. 5 is a flowchart for explaining the operation of the code reading device 1. FIG. 6A is a diagram illustrating a display example of guidance video data for a login authentication command, and FIG. 6B is a diagram illustrating a display example of guidance video data for an access command.

  Embodiments of the present invention will be described below.

  FIGS. 1A and 1B are diagrams for explaining an operation method of the code reader 1 according to the embodiment of the present invention.

  The code reading device 1 according to the present embodiment includes a QR code (registered trademark) recorded (printed, displayed, pasted, etc.) on the subject 2 from video data of the subject 2 such as an ID card, a business card, a postcard, and a mobile phone. ) 21 is read to obtain the command. In FIGS. 1A and 1B, a case where the recognized command is a login authentication command instructing execution of login authentication processing is described as an example.

  First, as shown in FIG. 1A, when the user holds the subject 2 over the code reading device 1 with the recording surface of the QR code 21 facing forward, the code reading device 1 records the QR code 21 with the camera 101. The surface is imaged, and image recognition processing is performed on the video data to detect the QR code 21. The detected QR code 21 is displayed on the display 102 and a command is acquired from the QR code 21. Then, the code reading device 1 recognizes that the acquired command is a login authentication command, and acquires the user name from the QR code 21. Then, a message indicating that the login authentication command has been detected is displayed on the display 102 together with the user name. Also, a voice message to that effect is output from the speaker 103 (22a, 22b).

  Next, as shown in FIG. 1B, the code reading device 1 uses the display 102 and the speaker 103 to provide guidance for performing an operation necessary for the login authentication process (23a, 23b). In response to this, the user moves the subject 2 so that the QR code 21 draws a predetermined locus with the recording surface of the QR code 21 facing the code reader 1 side. The code reading device 1 performs image recognition processing on a series of video data captured by the camera 101, and detects the movement of the QR code 21 at this time. Then, using the locus data 24 of the QR code 21 as a parameter (authentication data), a login authentication process for the user name acquired from the QR code 21 is executed.

  FIG. 2 is a schematic functional configuration diagram of the code reading device 1.

  As shown in the figure, the code reading device 1 includes a camera 101, a display 102, a speaker 103, a display control unit 104, a voice control unit 105, a network IF unit 106, a code detection unit 107, and a command acquisition unit. 108, a motion detection unit 109, a parameter setting unit 110, a guidance storage unit 111, a guidance processing unit 112, and a command execution unit 113.

  The camera 101 images the subject 2 on which the QR code 21 is recorded and outputs video data. Here, as shown in FIG. 3, the QR code 21 recorded on the subject 2 stores a command 211 together with additional information 212 for causing the code reader 1 to perform arbitrary processing. In addition, a plurality of parameter candidates 213 set in the command 211 are stored as necessary.

  The display 102 displays various information including the QR code 21 detected from the video data of the camera 101 and guidance video data for setting parameters for the command 211 acquired from the QR code 21.

  The speaker 103 outputs various sounds including guidance sound data for setting parameters for the command 211 acquired from the QR code 21.

  The display control unit 104 controls display on the display 102.

  The voice control unit 105 controls the voice output of the speaker 103.

  The network IF unit 106 is an interface for connecting the code reading device 1 to a network such as a wireless LAN or a wired LAN.

  The code detection unit 107 performs existing image recognition processing on the video data output from the camera 101 to detect the QR code 21. Further, the coordinate information of the detected QR code 21 is specified.

  The command acquisition unit 108 acquires a command 211 and additional information 212 from the QR code 21 detected by the code detection unit 107. Here, when a plurality of parameter candidates 213 are stored in the QR code 21, these parameter candidates 213 are also acquired.

  The motion detection unit 109 detects the motion of the QR code 21 based on the coordinate information of the QR code 21 specified by the code detection unit 107 from a series of video data from the camera 101.

  The parameter setting unit 110 sets the parameters of the command 211 acquired from the QR code 21 by the command acquisition unit 108 based on the movement of the QR code 21 detected by the motion detection unit 109 and parameter setting operation information described later. To do. When a plurality of parameter candidates 213 are acquired from the QR code 21 together with the command 211 by the command acquisition unit 108, the movement of the QR code 21 detected by the movement detection unit 109, parameter setting operation information described later, Is selected from these parameter candidates 213, and this parameter is set in the command 211 acquired from the QR code 21.

  The guidance storage unit 111 stores guidance information for accepting a parameter setting operation necessary for command execution for each command 211.

  FIG. 4 is a diagram schematically showing the registration contents of the guidance storage unit 111. As shown in the figure, the guidance storage unit 111 stores a record 1110 for each command 211 that may be included in the QR code 21. The record 1110 includes a field 1111 in which the command 211 is registered, fields 1112 and 1113 in which guidance video data and guidance audio data for performing an operation necessary for parameter setting of the command 211 are registered, and a command 211. And a field 1114 in which parameter setting operation information defining the movement of the QR code 21 required for parameter setting is registered.

  In this embodiment, a login authentication command for performing login authentication processing and an access command for performing access processing for an arbitrary access destination are assumed as commands 211 that may be included in the QR code 21. ing.

  The guidance processing unit 112 searches the guidance storage unit 111 for the record 1110 using the command 211 acquired from the QR code 21 by the command acquisition unit 108 as a key. Then, the guidance video data and guidance audio data registered in the fields 1112 and 1113 of the retrieved record 1110 are used to provide guidance for performing an operation necessary for parameter setting. Further, the parameter setting operation information registered in the field 1114 of the retrieved record 1110 is passed to the parameter setting unit 110.

  The command execution unit 113 executes the command 211 acquired from the QR code 21 from the command acquisition unit 108 using the parameters set by the parameter setting unit 110. Alternatively, it requests the other apparatus to execute the command 211 via the network IF unit 106. Then, if necessary, the execution result is displayed on the display 102 or the sound is output from the speaker 103.

  FIG. 5 is a flowchart for explaining the operation of the code reading device 1. This flow is started when the user holds the subject 2 over the code reading device 1 with the recording surface of the QR code 21 facing forward.

  First, the code detection unit 107 performs image recognition processing on the video data output from the camera 101 and tries to detect the QR code 21 (S101). If the code detection unit 107 detects the QR code 21 (YES in S101), the code detection unit 107 passes the video data of the QR code 21 to the display control unit 104. In response to this, the display control unit 104 displays the video data of the QR code 21 on the display 102 (S102).

  In addition, the code detection unit 107 passes the video data of the QR code 21 detected from the video data to the command acquisition unit 108 together with the coordinate information of the QR code 21. Here, as coordinate information of the QR code 21, coordinate information on the video data of any one of the position detection patterns 214a to 214c at the three corners of the QR code 21 (for example, the position detection pattern 214c at the lower right corner) is used (see FIG. 3).

  In response, the command acquisition unit 108 reads information from the video data of the QR code 21 received from the code detection unit 107 and tries to acquire the command 211 and additional information 212 (S103). If the command acquisition unit 108 cannot acquire the command 211 and the additional information 212 (NO in S103), the command acquisition unit 108 notifies the guidance processing unit 112 accordingly. In response to this, the guidance processing unit 112 displays a message on the display 102 that the executable command 211 is not included in the QR code 21 via the display control unit 104, or via the voice control unit 105. Then, predetermined error processing such as outputting a voice message to that effect from the speaker 103 is performed (S121). Thereafter, this flow is terminated.

  On the other hand, if the command acquisition unit 108 can acquire the command 211 and the additional information 212 from the QR code 21 (YES in S103), the command acquisition unit 108 analyzes the acquired command 211 (S104). If the command 211 is a login authentication command (“login authentication” in S104), the process proceeds to S105. If the command 211 is an access command (“access” in S104), the process proceeds to S111.

  In S <b> 105, the command acquisition unit 108 notifies the guidance processing unit 112 of the login authentication command together with the user name included in the additional information 212. In response to this, the guidance processing unit 112 displays a message indicating that the login authentication command is detected from the QR code 21 via the display control unit 104 on the display 102 displaying the QR code 21 together with the user name. To do. Further, a voice message to that effect is output from the speaker 103 via the voice control unit 105.

  Next, the guidance processing unit 112 refers to the guidance storage unit 111 and identifies the record 1110 in which the login authentication command is registered in the field 1111. Then, the guidance video data and the guidance audio data registered in the fields 1112 and 1113 of the record 1110 are transferred to the display control unit 104 and the audio control unit 105, respectively. In response to this, the display control unit 104 displays guidance video data (for example, a character string “login authentication operation input”) on the display 102 together with the QR code 21, and the voice control unit 105 displays guidance voice data (for example, voice “ Please start the login authentication operation ") from the speaker 103 (S106). The guidance processing unit 112 passes the parameter setting operation information registered in the field 1114 of the record 1110 to the parameter setting unit 110.

  In accordance with the guidance video data displayed on the display 102 and the guidance voice data output from the speaker 103, the user moves the subject 2 so that the QR code 21 draws a predetermined locus, and performs an operation necessary for the login authentication process. .

  At this time, the code detection unit 107 sequentially detects the QR code 21 and its coordinate information from a series of video data output from the camera 101 and passes them to the command acquisition unit 108. The command acquisition unit 108 passes the coordinate information of the QR code 21 sequentially transmitted from the code detection unit 107 to the motion detection unit 109. The motion detection unit 109 detects the motion of the QR code 21 based on the coordinate information of the QR code 21 sequentially sent from the command acquisition unit 108, and passes the trajectory data 24 representing this motion to the display control unit 104. The display control unit 104 displays the trajectory data 24 on the display 102 together with the QR code 21 being displayed, guidance video data, and the like (S107).

  FIG. 6A is a diagram showing a display example of the guidance video data 23a for the login authentication command. In this example, the guidance video data 23 a for the login authentication command acquired from the QR code 21 of the subject 2 such as an ID card is included in the QR code 21 and the additional information 212 acquired from the QR code 21. 25a and the trajectory data 24 of the QR code 21 are displayed on the display 102. Here, the trajectory data 24 is displayed as a trajectory of movement of the QR code 21 on the display 102 so as to maintain a relative positional relationship with the coordinate information of the QR code 21 being displayed.

  When the motion detection unit 109 detects that the displacement of the coordinate information of the QR code 21 sequentially sent from the command acquisition unit 108 is a predetermined time or more and a predetermined value or less (the QR code 21 is in the same position). (YES in S108), the trajectory data 24 representing the movement of the QR code 21 so far is passed to the parameter setting unit 110. In response to this, the parameter setting unit 110 sets the trajectory data 24 of the QR code 21 in the login authentication command acquired from the QR code 21 according to the parameter setting operation information notified from the guidance processing unit 112. The authentication data (parameter) is determined, and the authentication data input by the user is notified to the command acquisition unit 108 (S109).

  Next, the command acquisition unit 108 notifies the command execution unit 113 of the user input authentication data notified from the parameter setting unit 110 and the user name 25 a included in the additional information 212 acquired from the QR code 21. And request execution of the login authentication command. In response to this, the command execution unit 113 compares and verifies the authentication data input by the user and the authentication data registered in advance in association with the user name 25a, and performs login authentication processing for the user name 25a. Execute (S110). Then, the authentication result (login permission / inhibition) is displayed on the display 102 via the display control unit 104 or output from the speaker 103 via the audio control unit 105, and then this flow is terminated.

  On the other hand, in S111, the command acquisition unit 108 notifies the guidance processing unit 112 of the access command together with the partner information included in the additional information 212. In response to this, the guidance processing unit 112 displays, via the display control unit 104, a message indicating that the access command is detected from the QR code 21 together with the partner information on the display 102 that is displaying the QR code 21. . Further, a voice message to that effect is output from the speaker 103 via the voice control unit 105.

  Next, the command acquisition unit 108 acquires information on a plurality of access destination candidates (parameter candidates 213) from the QR code 21. Then, the guidance processing unit 112 is notified of information on these access destination candidates. Receiving this, the guidance processing unit 112 displays the information of these access destination candidates on the display 102 displaying the QR code 21 via the display control unit 104 (S112).

  Next, the guidance processing unit 112 refers to the guidance storage unit 111 and identifies the record 1110 in which the access command is registered in the field 1111. Then, the guidance video data and the guidance audio data registered in the fields 1112 and 1113 of the record 1110 are transferred to the display control unit 104 and the audio control unit 105, respectively. In response to this, the display control unit 104 moves the guidance video data (for example, the character string “access destination selection” and the movement of the QR code 21 corresponding to each operation necessary for access destination selection such as cursor movement, determination, and cancellation. Is displayed on the display 102 together with the QR code 21, and the voice control unit 105 outputs guidance voice data (for example, “select an access destination”) from the speaker 103 ( S113). The guidance processing unit 112 passes the parameter setting operation information registered in the field 1114 of the record 1110 to the parameter setting unit 110.

  FIG. 6B is a diagram showing a display example of guidance video data for an access command. In this example, guidance video data 23c to 23g for an access command acquired from the QR code 21 of the subject 2 such as a business card or a postcard are included in the QR code 21 and the additional information 212 acquired from the QR code 21. The other party information 25b, a plurality of access destination candidates 26 obtained from the QR code 21, and a cursor 27 used to specify the access destination candidate 26 are displayed on the display 102. Here, the guidance video data 23d to 23g are notation data for explaining the movement of the QR code 21 corresponding to each operation necessary for the access destination selection such as cursor movement, determination, cancellation, etc. In accordance with the rules described in the attribute information 23d to 23g, it is displayed around the QR code 21 being displayed. For example, the guidance video data 23d to 23g are displayed at positions where the user should be able to grasp at a glance the direction in which the user should move the subject 2 from the current position based on the positional relationship with the QR code 21 being displayed.

  The user moves the subject 2 according to the guidance video data 23c to 23g displayed on the display 102 and the guidance voice data output from the speaker 103, and performs an operation necessary for selecting an access destination.

  At this time, the code detection unit 107 sequentially detects the QR code 21 and its coordinate information from a series of video data output from the camera 101 and passes them to the command acquisition unit 108. The command acquisition unit 108 passes the coordinate information of the QR code 21 sequentially transmitted from the code detection unit 107 to the motion detection unit 109. The motion detection unit 109 detects the motion of the QR code 21 based on the coordinate information of the QR code 21 sequentially sent from the command acquisition unit 108 (S114).

  Next, the motion detection unit 109 detects that the displacement of the coordinate information of the QR code 21 sequentially sent from the command acquisition unit 108 is a predetermined time or more and a predetermined value or less (the QR code 21 is in the same position). Then (YES in S115), the trajectory data 24 representing the movement of the QR code 21 so far is passed to the parameter setting unit 110. In response to this, the parameter setting unit 110 corresponds to which operation for selecting the access destination the movement of the QR code 21 represented by the trajectory data 24 according to the parameter setting operation information notified from the guidance processing unit 112. Is analyzed (S116).

  In the present embodiment, when the movement of the QR code 21 represented by the trajectory data 24 is “upward movement” or “downward movement” (“up / down” in S116), the parameter setting unit 110 displays the display 102 on the guidance processing unit 112. Is instructed to move the cursor 27 being displayed upward or downward. In response to this, the guidance processing unit 112, via the display control unit 104, accesses the access destination candidate 26 that is one above the access destination candidate 26 indicated by the cursor 27 being displayed on the display 102, or one below. The display position of the cursor 27 is changed so as to indicate the access destination candidate 26 (S117). Thereafter, the process returns to S114.

  If the movement of the QR code 21 represented by the trajectory data 24 is “move right” (“right” in S116), the parameter setting unit 110 instructs the command acquisition unit 108 and the guidance processing unit 112 to cancel. In response to this, the guidance processing unit 112 displays a message indicating that the cancel operation has been performed on the display 102 via the display control unit 104 or outputs a voice message indicating that via the voice control unit 105. To do. Further, the command acquisition unit 108 performs a cancel process for the access command acquired from the QR code 21 (S118). Thereafter, this flow is terminated.

  Further, when the movement of the QR code 21 represented by the trajectory data 24 is “left shift” (“left” in S116), the parameter setting unit 110 indicates the access destination candidate 26 indicated by the cursor 27 being displayed on the display 102. Is determined as the address information (parameter) of the access destination set in the access command acquired from this QR code 21, and this address information is notified to the command acquisition unit 108 (S119).

  Next, the command acquisition unit 108 notifies the command execution unit 113 of the address information notified from the parameter setting unit 110 and requests execution of the access command. In response to this, the command execution unit 113 executes access processing for this address information (S120). Specifically, when the address information is a telephone number or a mobile phone number, the telephone number (not shown) connected to the code reader 1 is specified by this telephone number via the network IF unit 106. The call processing to the other terminal is executed. When the address information is a URL, an access process to the WEB page specified by this URL is executed. Then, the execution result is displayed on the display 102 via the display control unit 104 or output from the speaker 103 via the audio control unit 105, and then this flow is terminated.

  The embodiment of the present invention has been described above.

  The code reading device 1 according to the present embodiment performs image recognition processing on the video data of the subject 2 to detect the QR code 21, acquires a command 211 from the QR code 21, and acquires a series of video data of the subject 2. A parameter is specified based on the detected movement of the QR code 21. Then, the specified parameter is set in the acquired command 211.

  Therefore, according to the present embodiment, the user holds the subject 2 on which the QR code 21 is recorded over the code reading device 1 and gives the subject 2 a predetermined movement, whereby an input device such as a keyboard or a touch panel is provided. A desired parameter can be set in the command 211 acquired from the QR code 21 without using.

  In addition, the code reading device 1 according to the present embodiment sets the trajectory data 24 representing the movement of the QR code 21 detected from a series of video data of the subject 2 as a parameter to the command 211 acquired from the QR code 21. Can do. Therefore, for example, a parameter can be set for a command in which a different parameter (authentication data) is set for each user, such as a login authentication command stored in an ID card or the like. Further, for example, even when different authentication data is set in a plurality of code readers 1, the user can log in to the code readers 1 using the subject 2 such as a common ID card. it can.

  In addition, the code reading device 1 according to the present embodiment can display the trajectory data 24 representing the movement of the QR code 21 detected from the video data of the subject 2 on the display 102 together with the QR code 21. The user can move the subject 2 while confirming the movement of the QR code 21, and the parameter setting operation is facilitated.

  In addition, when a plurality of parameter candidates 213 are stored in the QR code 21 together with the command 211, the code reading apparatus 1 according to the present embodiment acquires the command 211 and the plurality of parameter candidates 213 from the QR code 21 and displays them. 102, and a parameter is selected from a plurality of parameter candidates 213 currently displayed on the display 102 based on the movement of the QR code 21 detected from the video data of the subject 2 in series, and this parameter is set in the command 211. can do. Therefore, for example, by storing a plurality of parameter candidates as access destination address information together with an access command in a QR code 21 such as a business card or a postcard, a plurality of access destinations using one QR code 21 can be accessed. Access processing is possible.

  In addition, the code reading device 1 according to the present embodiment stores guidance information for accepting a parameter setting operation necessary for executing the command 211 for each command 211 that may be included in the QR code 21. In accordance with the guidance information of the command 211 acquired from the QR code 21, guidance for parameter setting operation is performed using the display 102 and the speaker 103. For this reason, the movement of the QR code 21 for parameter setting can be freely determined for each command 211, and the usability is improved.

  In addition, this invention is not limited to said embodiment, Many deformation | transformation are possible within the range of the summary.

  For example, in the above-described embodiment, two types of the login authentication command and the access command are assumed as the commands 211 that may be included in the QR code 21, but the present invention is not limited to this. Other commands that instruct execution of processing other than login authentication processing and access processing may be included in the QR code 21.

  In the above embodiment, the code reader 1 executes the command 211 acquired from the QR code 21 or causes the telephone terminal (not shown) to execute it. However, a network such as a wired LAN or a wireless LAN is used. The command 211 may be executed by another information processing apparatus such as a server connected via the server.

  In the above-described embodiment, as the coordinate information of the QR code 21, one coordinate information of the position detection patterns 214a to 214c at the three corners of the QR code 21 on the video is used. Although the movement is detected as the movement of the QR code 21, the present invention is not limited to this. By using the coordinate information of all the position detection patterns 214a to 214c of the QR code 21 as the coordinate information of the QR code 21, by analyzing the relative positional relationship of the position detection patterns 214a to 214c, the QR code 21 is also analyzed. In addition to the movement, the inclination and perspective of the QR code 21 may be detected as the movement of the QR code 21.

  In the above embodiment, the case where the QR code 21 is recorded on the subject 2 is described as an example, but the present invention is not limited to this. The present invention can be similarly applied to code symbols other than the QR code 21 such as a one-dimensional barcode and a two-dimensional barcode.

  In the above embodiment, the functional configuration of the code reading device 1 shown in FIG. 2 is realized by an integrated logic IC such as an application specific integrated circuit (ASIC) and a field programmable gate array (FPGA). It may be a thing, or may be realized by software by a computer such as a DSP (Digital Signal Processor). Or, an auxiliary storage device such as a CPU, memory, HDD, DVD-ROM, NIC (Network Interface Card), PC (Personal Computer) equipped with a communication interface such as a modem, PDA (Personal Digital Assistant), tablet terminal, etc. In a general-purpose computer, the CPU may be realized by loading a predetermined program from an auxiliary storage device onto a memory and executing it.

  1: Code reading device, 2: Subject, 21: QR code, 101: Camera, 102: Display, 103: Speaker, 104: Display control unit, 105: Audio control unit, 106: Network IF unit, 107: Code detection unit 108: Command acquisition unit 109: Motion detection unit 110: Parameter setting unit 111: Guidance storage unit 112: Guidance processing unit 113: Command execution unit

Claims (4)

A code reader that reads a code symbol to obtain a command,
Imaging means for imaging a subject and outputting video data;
Code detection means for performing image recognition processing on a series of video data output from the imaging means, and sequentially detecting the code symbols and the coordinate information of the code symbols from the series of video data ;
A command acquiring means for acquiring the command and additional information from the code symbol that is detected by said code detecting means,
Motion detecting means for detecting the movement of the code symbol based on the coordinate information of the code symbol sequentially detected by the code detecting means;
Display means for displaying the code symbol detected by the code detection means together with the additional information acquired by the command acquisition means and trajectory data representing the movement of the code symbol detected by the motion detection means;
Based on the motion of the code symbol that is detected by the motion detection means, have a, and a parameter setting means for setting a parameter of the command acquired by the command acquisition unit,
The motion detection means includes
When the displacement amount of the coordinate information of the code symbol sequentially detected by the code detection means becomes a predetermined time or more and a predetermined value or less, the code detection means sequentially detects from the series of video data until then. The trajectory data representing the movement of the code symbol specified by the coordinate information of the code symbol is passed to the parameter setting means,
The display means includes
When the displacement amount of the coordinate information of the code symbol sequentially detected by the code detecting means becomes a predetermined time or more and a predetermined value or less, it is sequentially detected from the series of video data by the code detecting means thereafter. Without displaying trajectory data representing the movement of the code symbol specified by the coordinate information of the code symbol,
The parameter setting means includes
A code reading apparatus , wherein trajectory data representing the movement of the code symbol received from the movement detecting unit is set as a parameter to a command acquired by the command acquiring unit . A code reader that reads a code symbol to obtain a command ,
Imaging means for imaging a subject and outputting video data;
Code detection means for performing image recognition processing on a series of video data output from the imaging means, and sequentially detecting the code symbols and the coordinate information of the code symbols from the series of video data;
Command acquisition means for acquiring the command and a plurality of parameter candidates from the code symbol detected by the code detection means;
Display means for displaying the code symbol detected by the code detection means, the plurality of parameter candidates acquired by the command acquisition means, and a cursor used for designating the parameter candidates;
When the displacement amount of the coordinate information of the code symbol sequentially detected by the code detection means becomes a predetermined time or more and a predetermined value or less, the code detection means sequentially detects from the series of video data until then. Motion detecting means for detecting the movement of the code symbol specified by the coordinate information of the code symbol;
Based on the movement of the code symbol detected by the movement detection means, a parameter is selected from the plurality of parameter candidates displayed on the display means, and the parameter is acquired by the command acquisition means. Parameter setting means for setting to
The parameter setting means includes
When the operation previously associated with the movement of the code symbol detected by the movement detecting unit is a cursor movement, the cursor displayed on the display unit is moved, and parameter candidates designated by the cursor are selected. A code reading device that changes and selects a parameter candidate designated by the cursor displayed on the display means as a parameter when the operation is a decision . A command acquisition method for acquiring a command by imaging a subject on which a code symbol is recorded by a code reader,
Image recognition processing is performed on a series of video data obtained by imaging the subject , and the code symbol and the coordinate information of the code symbol are sequentially detected from the series of video data,
Get commands and additional information from the search out the said code symbol,
Detecting the movement of the code symbol based on the coordinate information of the code symbol detected sequentially ;
Displaying the detected code symbol together with the acquired additional information and trajectory data representing the detected movement of the code symbol;
When the amount of displacement of the coordinate information of the code symbol that is sequentially detected is not less than a predetermined value for a predetermined time or longer, it is specified by the coordinate information of the code symbol that is sequentially detected from the series of video data thereafter. Without displaying the locus data representing the movement of the code symbol, the locus data representing the movement of the code symbol specified by the coordinate information of the code symbol sequentially detected from the series of video data until then, A command acquisition method , wherein the command is set as a parameter acquired from the code symbol . A command acquisition method for acquiring a command by imaging a subject on which a code symbol is recorded by a code reader,
  Image recognition processing is performed on a series of video data obtained by imaging the subject, and the code symbols and the coordinate information of the code symbols are detected from the series of video data,
  Obtaining the command and a plurality of parameter candidates from the detected code symbol;
  Displaying the detected code symbol, a plurality of parameter candidates obtained from the code symbol, and a cursor used to specify the parameter candidate;
  When the displacement amount of the coordinate information of the code symbol that is sequentially detected is not less than a predetermined value for a predetermined time or longer, it is specified by the coordinate information of the code symbol that has been sequentially detected from the series of video data so far. Detecting the movement of the code symbol,
  When the operation previously associated with the detected movement of the code symbol is a cursor movement, the displayed cursor is moved, the parameter candidate designated by the cursor is changed, and the operation is determined. If the parameter candidate specified by the displayed cursor is selected as a parameter,
  A parameter selected from the plurality of parameter candidates is set in a command acquired from the code symbol.
  A command acquisition method characterized by that.

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