JP2015109097A - Determination device and determination method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an input determination method of enabling the determination that an operator is a human with a simple operation while making the reading by a bot difficult.SOLUTION: A determination device displays a target image for identifying a random position on a screen (S1) and acquires a position designated by a user to the identified position (S2). The determination device then determines whether or not the position of the target image coincides with the designated position (S3), and when the number of times the positions are determined to coincide with each other has reached a predetermined number of times of required coincidence (S5), determines the success of authentication (S6).

Description

  The present invention relates to a technique for determining whether a device operation is performed by a human.

  In recent years, many websites on the Internet perform authentication based on user input. As an authentication method of this kind, authentication using "CAPTCHA" (registered trademark) that prevents automatic analysis by a computer by presenting an image with distorted characters to the user and inputting a character string written there. The method is known. This is intended to determine that the operator is a human.

  Patent Document 1 describes an authentication method that improves security by making it difficult to read with a “bot” having a function of recognizing characters in an image.

JP 2008-262549 A

  Although the method of Patent Document 1 makes it difficult to read with a bot, the user has to read and input characters and symbols embedded in an unclear image, which is cumbersome to operate. Such work is particularly difficult for the elderly and children.

  Examples of the problems to be solved by the present invention include those described above. An object of the present invention is to provide an input determination method that makes it difficult to read with a bot and can determine that an operator is a human by a simple operation.

  The invention according to claim 1 is a determination device, wherein image display means for displaying a piece image for completing a jigsaw puzzle on a screen, and a position of a destination of the piece image moved by a user's drag operation And an authentication determining means for determining that the authentication is successful when the jigsaw puzzle is completed based on the position of the movement destination of the piece image acquired by the acquiring means. .

  The invention according to claim 3 is a determination method executed by a determination device that moves a piece image of a jigsaw puzzle and determines that authentication is successful when the jigsaw puzzle is completed, and the piece for completing the jigsaw puzzle An image display step for displaying an image on the screen, an acquisition step for acquiring the position of the movement destination of the piece image moved by the user's drag operation, and a position of the movement destination of the piece image acquired by the acquisition step And an authentication determination step of determining that the authentication is successful when the jigsaw puzzle is completed.

It is a block diagram which shows schematic structure of the determination apparatus which concerns on 1st Example. The example of the display screen in a determination process is shown. It is a flowchart of the determination process by 1st Example. It is a block diagram which shows schematic structure of the determination apparatus which concerns on 2nd Example. It is a flowchart of the determination process in 2nd Example. It is a block diagram which shows schematic structure of the determination apparatus which concerns on 3rd Example. It is a flowchart of the determination process in 3rd Example. The other example of a display screen in a determination process is shown.

  In a preferred embodiment of the present invention, the determination device is configured to (i) sequentially change a target image, which is an image for arbitrarily specifying a position on the screen, while changing the position on the screen, or (ii) a screen An image control means for simultaneously displaying a plurality of target images, which are images for arbitrarily specifying the upper position, on the screen, an acquisition means for acquiring a designated position designated on the screen, and displayed on the screen Determining means for determining whether the position of the target image is designated in a predetermined order.

  The determination device displays a plurality of target images that arbitrarily specify positions on the screen, and acquires user-specified positions for the target images. Then, the determination device determines whether the position of the target image displayed on the screen is designated by the user in a predetermined order. This makes it possible to determine that the operator is a human by a method that is convenient for the user.

  In another preferred embodiment of the present invention, the determination device connected to the terminal device via the network sequentially (i) sequentially selects a target image, which is an image for arbitrarily specifying a position on the screen, on the screen. Or (ii) image control means for transmitting a plurality of target images, which are images for arbitrarily specifying positions on the screen, via the network and displaying them on the screen of the terminal device, An acquisition unit that acquires a specified position specified on the screen of the terminal device via the network, and a determination unit that determines whether the position of the target image displayed on the screen is specified in a predetermined order. And comprising.

  The determination device generates a plurality of target images that arbitrarily specify positions on the screen, transmits the target images via a network, and displays them on the screen of the terminal device. And a user's designated position with respect to the displayed target image is acquired via a network. Then, the determination device determines whether the position of the target image displayed on the screen of the terminal device is designated by the user in a predetermined order. This makes it possible to determine that the operator is a human by a method that is convenient for the user.

  In another preferred embodiment of the present invention, the determination device connected to the display device via the first and second connection means includes (i) a target image that is an image for arbitrarily specifying a position on the screen. Sequentially changing the position on the screen, or (ii) simultaneously transmitting a plurality of target images, which are images specifying the position on the screen, via the first connection means Image control means to be displayed on the screen of the apparatus, acquisition means for acquiring the designated position designated on the screen of the display apparatus via the second connection means, and the position of the target image displayed on the screen Determining means for determining whether or not are designated in a predetermined order.

  The determination device generates a plurality of target images that arbitrarily specify positions on the screen, transmits the target images via the first connection unit, and displays the target images on the screen of the display device. Further, the determination device acquires a user-specified position with respect to the target image displayed on the display device via the second connection unit. Then, the determination device determines whether the position of the target image displayed on the screen is designated by the user in a predetermined order. This makes it possible to determine that the operator is a human by a method that is convenient for the user.

  In one aspect of the above-described determination apparatus, the image control unit displays one target image, and the determination unit determines that the position of the target image is designated in a predetermined order, that is, it matches. Displays one new target image at a time.

  In another aspect of the determination apparatus, the image control unit simultaneously displays a plurality of target images, and the determination unit specifies the position of the target image displayed on the screen in a predetermined order to the user. Determine whether it was done. In this case, preferably, each of the target images is an image including an ambiguous character indicating the order, and the determination means is specified for the plurality of target images in the order of the ambiguous character indicating the order. Determine.

  In a preferred example, the target image has an unclear image outline.

  In another preferred example, the target image is an image in which a route to be traced by the user on the screen is displayed, and the route is drawn at random.

  In still another preferred example, the target image is an image of a puzzle in which a plurality of pieces are combined to form one collective piece, and the shape and number of the plurality of pieces are determined randomly.

  In a preferred example in any of the embodiments, when the number of matches determined by the determination unit that the position of the target image is designated by the user in a predetermined order reaches the predetermined required number of matches, the authentication is successful. Is determined. Further, when the number of mismatches that the determination unit determines that the position of the target image is not designated by the user in a predetermined order exceeds the predetermined allowable number of mismatches, the number of matches at that time is reset. Thereby, the accuracy of determination can be improved.

  In another preferred embodiment of the present invention, the determination method performed by the determination device including the display unit is as follows: (i) a target image, which is an image for arbitrarily specifying a position on the screen, is sequentially set on the screen; (Ii) An image control process for displaying a plurality of target images, which are images for arbitrarily specifying positions on the screen, on the screen of the display unit at the same time, and designation specified on the screen An acquisition step of acquiring a position, and a determination step of determining whether the position of the target image displayed on the screen is specified in a predetermined order.

  In another preferred embodiment of the present invention, there is provided a determination method executed by a determination device connected to a terminal device via a network, wherein (i) a target image that is an image for arbitrarily specifying a position on a screen is selected. Sequentially changing the position on the screen or (ii) simultaneously transmitting a plurality of target images, which are images specifying the position on the screen, via the network to the screen of the terminal device An image control process to be displayed, an acquisition process of acquiring a specified position specified on the screen of the terminal device via the network, and a position of the target image displayed on the screen is specified in a predetermined order And a determination step of determining whether or not it has been performed.

  In another preferred embodiment of the present invention, the determination method is executed by a determination device connected to the display device via the first and second connection means, and (i) arbitrarily specifies a position on the screen. Sequentially changing the position of the target image, which is an image to be changed, on the screen, or (ii) simultaneously setting a plurality of target images, which are images specifying the position on the screen, at the first connection means An image control step of transmitting via the second connection means and acquiring the designated position designated on the screen of the display device; A determination step of determining whether the position of the displayed target image is designated in a predetermined order.

  Also by the above method, determination can be performed by a method that is simple for the user.

  In another preferred embodiment of the present invention, the determination program is executed by a determination device including a display unit, and (i) a target image that is an image for arbitrarily specifying a position on a screen is sequentially displayed on the screen. Or (ii) an image control process for simultaneously displaying a plurality of target images, which are images for arbitrarily specifying positions on the screen, on the screen of the display unit, and specifying on the screen The determination apparatus executes an acquisition step of acquiring the specified position and a determination step of determining whether the position of the target image displayed on the screen is specified in a predetermined order.

  In another preferred embodiment of the present invention, there is provided a determination program executed by a determination device connected to a terminal device via a network, and (i) a target image that is an image for arbitrarily specifying a position on a screen. , Sequentially changing the position on the screen or (ii) simultaneously transmitting a plurality of target images, which are images for arbitrarily specifying the position on the screen, via the network An image control process to be displayed, an acquisition process of acquiring a specified position specified on the screen of the terminal device via the network, and a position of the target image displayed on the screen in a predetermined order A determination step of determining whether or not it has been designated.

  In another preferred embodiment of the present invention, there is provided a determination program executed by a determination device connected to a display device via first and second connection means, wherein (i) a position on the screen is arbitrarily set The first connecting means sequentially changes the position of the target image, which is an image to be specified, at any time on the screen, or (ii) simultaneously targets a plurality of target images, which are images at which the position on the screen is arbitrarily specified, An image control step of transmitting via the display device and displaying it on the screen of the display device; an acquisition step of acquiring a designated position designated on the screen of the display device via the second connection means; And a determination step of determining whether or not the position of the target image displayed on the screen is designated in a predetermined order.

  Also with the above program, the determination can be performed by a method convenient for the user. The above program can be stored in a storage medium and handled.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

[First embodiment]
FIG. 1 shows a configuration of a determination apparatus according to the first embodiment of the present invention. The determination apparatus 100 includes a control unit 10, a monitor 11, and a touch panel pointing device (hereinafter referred to as “touch panel”) 12.

  The monitor 11 is a liquid crystal display, for example, and displays information to be presented to the user. The touch panel 12 is arranged on the monitor 11 and acquires the XY coordinates of the position touched by the user with respect to the image displayed on the monitor 11 as input position coordinates.

  The control unit 10 includes a CPU, a RAM, a ROM, and the like in hardware, and performs various processes by executing a program stored in a ROOM or the like. The control unit 10 functionally includes a target image generation unit 13, a match determination unit 14, and an authentication determination unit 15.

  The authentication determination unit 15 controls the target image generation unit 13 to generate an authentication image used for the determination process. Here, the authentication image is an image that designates and specifies a random position on the screen of the monitor 11, and is hereinafter also referred to as a “target image”. The target image generation unit 13 outputs the generated target image to the monitor 11. The target image generation unit 13 generates image data to be displayed as a target image, and coordinates (“target position coordinates”) of a position (referred to as “target position”) on the monitor 11 where the target image is to be displayed. Is generated and supplied to the monitor 11. The monitor 11 displays the input target image at the input target position. Thus, the target image is presented to the user. The target image generation unit 13 also supplies the generated target position coordinates to the coincidence determination unit 14.

  The user touches the position indicated by the target image displayed on the monitor 11 with a finger or the like. The touch panel 12 arranged on the monitor 11 detects a position touched by the user, and supplies the XY coordinates as input coordinates to the coincidence determination unit 14. The coincidence determination unit 14 determines whether or not the user has touched the position indicated by the target image based on the target position coordinates acquired from the target image generation unit 13 and the input coordinates acquired from the touch panel 12. Specifically, the coincidence determination unit 14 determines whether or not the target position coordinates match the input coordinates. Then, the constant determination unit 14 sends a determination result of whether or not those coordinates match to the authentication determination unit 15.

  FIG. 2 shows an example of the target image displayed on the monitor 11. As shown in the figure, a mark 3 such as a cloud with a blurred outline is displayed on the monitor 11 as a target image. The user 5 touches the mark 3 with a finger or the like. In this example, the mark 3 has a high density in the central part and a low density in the peripheral part, and the outline looks unclear. The target position coordinates are the coordinates of the mark 3 area. That is, the position indicated by the target image is a circular area of the mark 3, and if the input coordinates touched by the user belong to this circular area, the coincidence determination unit 14 determines that the coordinates coincide, and the coincidence determination result Is “match”. On the other hand, if the input coordinates touched by the user do not belong to this circular area, the coincidence determination unit 14 determines that the coordinates do not match and sets the match determination result to “mismatch”. Then, the match determination unit 14 supplies the match determination result to the authentication determination unit 15. In the above example, since the target image shows a circular area, the target position coordinates are a set of coordinates of the circular area. As described above, when the target position coordinates are not points but have a certain region (expansion), the coincidence determination unit 14 determines that the two coincide with each other if the input coordinates belong to the target position coordinates. In the following, the number of times that the match determination unit 13 determines “match” is referred to as “match number”, and the number of times determined as “mismatch” is referred to as “mismatch number”.

  The authentication determination unit 15 controls the target image generation unit 13 based on the match determination result input from the match determination unit 14. Specifically, each time the authentication determination unit 15 acquires a match determination result from the match determination unit 14, the authentication determination unit 15 controls the target image generation unit 13 to generate a new target image indicating another position and display it on the monitor 11. Let Then, the coincidence determination unit 14 supplies the coincidence determination result of the coincidence determination unit 14 with respect to the new target image to the authentication determination unit 15.

  Thus, the authentication determination unit 15 determines that the authentication is successful when a determination result of “match” is obtained for a predetermined number of times. This predetermined number of times is referred to as “necessary number of matches”. For example, when the required number of matches is “4 times”, the authentication determination unit 15 counts up the number of matches every time a determination result “match” is obtained from the match determination unit 14, and is input from the match determination unit 14. When the number of determination results of “match” reaches “4”, the authentication is determined to be successful.

  On the other hand, when the determination result from the match determination unit 14 is “mismatch”, the authentication determination unit 15 resets the number of matches up to that point. Therefore, when the required number of matches is “4”, the display of the target image and the match determination are repeatedly executed until the determination result becomes “match” four times in succession.

  Next, a determination process executed by the determination apparatus 100 will be described. FIG. 3 is a flowchart of the determination process. This process is realized by the control unit 10 executing a program prepared in advance. FIG. 2 shows a change in the display screen during the determination process.

  First, the target image generation unit 13 generates a target image and displays it on the monitor 11 (step S1). Next, the coincidence determination unit 14 obtains input coordinates, which are the coordinates of the position touched by the user, from the touch panel 12 (step S2), and determines whether or not they match the target position coordinates obtained from the target image generation unit 13. (Step S3). If the target position coordinates do not match the input coordinates (step S3; No), the authentication determination unit 15 resets the number of matches to “0” (step S4), and returns to step S1.

  On the other hand, when the target position coordinates coincide with the input coordinates (step S3; Yes), the authentication determination unit 15 determines whether or not the number of matches so far has reached the required number of matches (step S5). In the above example, the authentication determination unit 15 determines whether or not the number of matches so far has reached “4”.

  If the number of matches does not reach the required number of matches (step S5; No), the process returns to step S1. Therefore, a new target image is displayed and a match determination is performed. On the other hand, when the number of matches reaches the required number of matches (step S5; Yes), the authentication determination unit 15 determines that the authentication is successful, displays that fact (step S6), and ends the process.

  In this way, in this embodiment, the user simply touches the position indicated by the target image on the monitor, and there is no need to read a character string that is intentionally difficult to read as in the prior art described above. Therefore, the user can be determined by a simple method that does not burden the user.

  In the above example, the required number of matches is four, but the application of the present invention is not limited to this. The greater the required number of matches, the higher the security, but the burden on the user increases. Therefore, the required number of matches may be determined in consideration of the required security level.

  In the above example, if the match determination result does not match even once in steps S3 to S4, the number of matches so far is reset to zero. Instead, a predetermined allowable number of mismatches may be determined in advance, and when the number of mismatches determined by the match determination exceeds the allowable number of mismatches, the number of matches so far may be reset. For example, when the allowable number of mismatches is set to one, the number of matches up to that point is reset to 0 when the match determination is made twice consecutively.

  In this embodiment, since the target image is generated at a random position every time, it is not possible to make the determination successful only by mechanically touching a predetermined position on the screen. Therefore, it can be confirmed that the operator is a human. If the target image is a mark 3 such as a cloud with a blurred outline, it is possible to improve security by making it difficult to read with the “bot” described above.

  In the example of FIG. 2, four target images (mark 3) are finally displayed. However, when a new target image is displayed, the old target image remains displayed. Instead, the old target image may be deleted when a new target image is displayed. For example, if the user touches the place where the firefly has come and stayed, the firefly will fly around again, and if the user touches the place when the firefly stays at a certain place, the user will make a determination. The determination operation can be executed in a game-like manner without feeling troublesome operation.

[Second Embodiment]
Next, a second embodiment of the present invention will be described. FIG. 4 shows the configuration of the determination apparatus according to the second embodiment. In the first embodiment, the control unit 10, the monitor 11, and the touch panel 12 are integrally configured. On the other hand, as shown in the drawing, in the determination device 200 of the second embodiment, the display device 20 including the monitor 21 and the touch panel 23, and the control device 30 including the authentication determination unit 35 are configured separately.

  Specifically, the display device 20 and the control device 30 are configured as independent devices, and are connected by the first connection means 41 and the second connection means 42 so as to be communicable. For example, the display device 20 can be an in-vehicle device such as a car navigation device, and the control device 30 can be a terminal device such as a smartphone. In this case, the first connection means may be HDMI (High Definition Multimedia interface) for transmitting video / audio data, and the second connection means may be Bluetooth (registered trademark), a USB cable, or the like.

  The display device 20 includes a monitor 21, a reception unit 22, a touch panel 23, and a transmission unit 24. The monitor 21 and the touch panel 23 are the same as the monitor 11 and the touch panel 12 of the first embodiment.

  The control device 30 includes a transmission unit 31, a reception unit 32, a target image generation unit 33, a match determination unit 34, and an authentication determination unit 35. The target image generation unit 33, the match determination unit 34, and the authentication determination unit 35 are the same as the target image generation unit 13, the match determination unit 14, and the authentication determination unit 15 of the first embodiment, respectively.

  The target image generated by the target image generation unit 33 is supplied to the transmission unit 31 and is received by the reception unit 22 of the display device 20 via the first connection unit 41. The target image received by the receiving unit 22 is displayed on the monitor 21 and presented to the user. When the user touches the position of the target image displayed on the monitor 21, the touch panel 23 acquires the input coordinates and supplies the input coordinates to the transmission unit 24. The transmission unit 24 controls the input coordinates via the second connection unit 42. The data is transmitted to the receiving unit 32 of the device 30. The input coordinates received by the receiving unit 32 are sent to the coincidence determination unit 34 and used for coincidence determination.

  As described above, the second embodiment has a configuration in which the display device 20 and the control device 30 are connected by the two connecting means 41 and 42, but is functionally the same as the first embodiment. Therefore, the user can execute the determination process just by touching the target image on the monitor 21 as in the first embodiment.

  Next, a determination process executed by the determination apparatus 200 will be described. FIG. 5 is a flowchart of the determination process. This process is realized mainly by the control device 30 executing a program prepared in advance.

  First, communication is established between the display device 20 and the control device 30 via the first connection means 41 and the second connection means 42. Specifically, the transmission unit 31 of the control device 30 transmits the first connection request to the reception unit 22 of the display device 20 via the first connection unit 41 (step S21), and the reception unit of the display device 20 In response to this, the first connection is established (step S22). Similarly, the reception unit 32 of the control device 30 transmits a second connection request to the transmission unit 24 of the display device 20 via the second connection means 42 (step S23), and the transmission unit 24 of the display device 20 transmits the second connection request. In response to this, the second connection is established (step S24).

  Next, the target image generation unit 33 generates a target image, transmits it to the display device 20 via the first connection means 41, and displays it on the monitor 11 (step S25). Next, the coincidence determination unit 34 acquires input coordinates, which are the coordinates of the position touched by the user, from the touch panel 23 via the second connection means 42 (step S26), and the target position coordinates and the input coordinates match. It is determined whether or not to perform (step S27). If the target position coordinates do not match the input coordinates (step S27; No), the authentication determination unit 35 resets the number of matches to “0” (step S28), and the process returns to step S25.

  On the other hand, when the target position coordinates coincide with the input coordinates (step S27; Yes), the authentication determination unit 35 determines whether or not the number of matches so far has reached the required number of matches (step S29).

  If the number of matches does not reach the required number of matches (step S29; No), the process returns to step S25. On the other hand, when the number of matches reaches the required number of matches (step S29; Yes), the authentication determination unit 35 determines that the authentication is successful (step S30), and notifies the display device 20 of the authentication success (step S31). Thereby, the fact that the determination is successful is displayed on the monitor 21, and the user can know the success of the authentication. Thus, the determination process ends.

  Thus, also in this embodiment, the user simply touches the position indicated by the target image on the monitor, and there is no need to read a character string that is intentionally difficult to read as in the prior art described above. Therefore, the user can be determined by a simple method that does not burden the user. The method for determining the required number of matches and the allowable number of mismatches is the same as in the first embodiment.

  In this embodiment, since the target image is generated at a random position every time, it is not possible to make the determination successful only by mechanically touching a predetermined position on the screen. Therefore, it can be confirmed that the operator is a human. In addition, since the first connection means HDMI and the second connection means Bluetooth are not connected to the determination device and the display device at the same time, the determination operation cannot be performed. Can be confirmed.

[Third embodiment]
Next, a third embodiment of the present invention will be described. FIG. 6 shows the configuration of the determination apparatus according to the third embodiment. In the first embodiment, the control unit 10, the monitor 11, and the touch panel 12 are integrally configured. On the other hand, as shown in the figure, the determination apparatus 300 according to the third embodiment includes a terminal device 50 including a monitor 51 and a touch panel 52, and a server apparatus 60 including an authentication determination unit 65 and the like.

  Specifically, the terminal device 50 and the server device 60 are connected to be communicable via the network 7. For example, the terminal device can be a mobile terminal device such as a PC or a smartphone.

  The terminal device 50 includes a monitor 51, a touch panel 52, and a communication control unit 53. The monitor 51 and the touch panel 52 are the same as the monitor 11 and the touch panel 12 of the first embodiment.

  The server device 60 includes a communication control unit 61, a target image generation unit 63, a match determination unit 64, and an authentication determination unit 65. The target image generation unit 63, the coincidence determination unit 64, and the authentication determination unit 65 are the same as the target image generation unit 13, the coincidence determination unit 14, and the authentication determination unit 15 of the first embodiment, respectively.

  The target image generated by the target image generation unit 63 is supplied to the communication control unit 61 and is received by the communication control unit 53 of the terminal device 50 via the network 7. The target image received by the communication control unit 53 is displayed on the monitor 51 and presented to the user. When the user touches the position of the target image displayed on the monitor 51, the touch panel 52 acquires the input coordinates and supplies the input coordinates to the communication control unit 53. The communication control unit 53 transmits the input coordinates via the network 7 to the server device 60. To the communication control unit 61. The input coordinates received by the communication control unit 61 are sent to the coincidence determination unit 64 and used for coincidence determination.

  As described above, the third embodiment has a configuration in which the terminal device 50 and the server device 60 are communicably connected via the network 7, but is functionally the same as the first embodiment. Therefore, the user can execute the determination process just by touching the target image on the monitor as in the first embodiment.

  Next, a determination process executed by the determination apparatus 300 will be described. FIG. 7 is a flowchart of the determination process. This process is realized mainly by the server device 60 executing a program prepared in advance.

  First, communication via the network 7 is established between the terminal device 50 and the server device 60. Specifically, the communication control unit 53 of the terminal device 50 transmits a connection request to the communication control unit 61 of the server device 60 via the network 7 (step S41), and the communication control unit 61 of the server device 60 responds thereto. The connection is established by responding (step S42).

  Next, the target image generation unit 63 generates a target image, transmits it to the terminal device 20 via the network 7, and displays it on the monitor 51 (step S43). Next, the coincidence determination unit 64 acquires input coordinates, which are the coordinates of the position touched by the user, from the touch panel 52 via the network 7 (step S44), and whether or not the target position coordinates and the input coordinates match. Is determined (step S45). If the target position coordinates do not match the input coordinates (step S45; No), the authentication determination unit 65 resets the number of matches to “0” (step S46), and the process returns to step S43.

  On the other hand, when the target position coordinates coincide with the input coordinates (step S45; Yes), the authentication determination unit 65 determines whether or not the number of matches so far has reached the required number of matches (step S47).

  If the number of matches does not reach the required number of matches (step S47; No), the process returns to step S43. On the other hand, when the number of matches reaches the required number of matches (step S47; Yes), the authentication determination unit 65 determines that the authentication is successful (step S48), and notifies the terminal device 50 of the authentication success (step S49). Thereby, the fact that the determination is successful is displayed on the monitor 51, and the user can know the authentication success. Thus, the determination process ends.

  Thus, also in this embodiment, the user simply touches the position indicated by the target image on the monitor, and there is no need to read a character string that is intentionally difficult to read as in the prior art described above. Therefore, the user can be determined by a simple method that does not burden the user. The method for determining the required number of matches and the allowable number of mismatches is the same as in the first embodiment.

[Modification]
(Other examples of target images)
In the above embodiment, one target image is one mark 3 as shown in FIG. 2, and this is displayed in order until the required number of matches is reached. Instead, a number of target images corresponding to the required number of coincidence (that is, the mark 3) may be displayed at the same time, and the target image may be pressed simultaneously by the user. In this case, the coincidence determination unit determines whether or not each mark 3 is simultaneously touched based on the plurality of input coordinates, and supplies the determination result to the authentication determination unit. The authentication determination unit may acquire the input match determination result for the number of marks 3 corresponding to the required number of matches, and may determine that the authentication is successful if all match. With such a configuration, the user input time can be shortened.

  As a modification in the case of simultaneously displaying the number of target images corresponding to the required number of matches, as shown in FIG. 8A, each target image 4 may include a number indicating the order to be touched by the user. . Based on the input coordinates, the coincidence determination unit determines whether or not each target image 4 has been touched in a predetermined order, that is, in the numerical order, and supplies the determination result to the authentication determination unit. The authentication determination unit determines whether or not the number of matches has reached the required number of matches. Then, the authentication determination unit determines that the authentication is successful when all the target images 4 are touched in the correct order. In FIG. 8A, numbers are used as characters indicating the order, but characters other than numbers may be used. For example, it may be an alphabet that makes sense when arranged in order. In the target image 4, it is preferable that the outline is blurred and the displayed characters are slightly blurred to make it unclear. In this way, security can be improved by making it difficult to read with the above-mentioned “bot”.

  FIG. 8B shows still another example of the target image. This target image is an image showing a route 70 including a start position 71 and a goal position 72. As target image position coordinates, in addition to the coordinates of the start position 71 and the goal position 72, other positions on the route 70, for example, the coordinates of intermediate positions 73 and 74 corresponding to the bending points of the route are used. The intermediate positions 73 and 74 may not be displayed so that the user can recognize them. The user performs an input to trace the route 70 from the start position 71 to the goal position 72 on the touch panel. The touch panel acquires user input as a set of a plurality of input coordinates traced by the user on the route 70. The coincidence determination unit determines whether the user input coordinates coincide with the start position 71, the intermediate positions 73 and 74, and the goal position 72, which are target position coordinates. The authentication determination unit determines that the number of matches has reached the required number of matches when a determination result of “match” is obtained at these four positions, and determines that the authentication is successful.

  FIG. 8C shows still another example of the target image. This target image is a jigsaw puzzle image including a plurality of pieces 75. In this example, a plurality of pieces 75 are initially placed in disjoint positions, requesting the user to combine each piece 75 at the central position of the monitor. The user drags and moves each piece to create the state shown in FIG. 8C, which is the state when the puzzle is completed. The position of each piece in the state of FIG. 8C is the target coordinate position. The touch panel acquires the coordinates when the user drags each piece 75 as input coordinates, and the coincidence determination unit compares the input coordinates with the target coordinate position to perform coincidence determination. If the match determination result is “match” for all four pieces 75, the authentication determination unit determines that the authentication is successful.

  If an authentication image having such entertainment properties is provided, the user can execute the determination operation as if it were a game without feeling bothered by the determination operation.

(Input device)
In the above embodiment, the user input device is a touch panel arranged on the monitor, but the application of the present invention is not limited to this. Alternatively, a mouse may be used as the input device. In this case, instead of touching on the touch panel, the user clicks the position of the target image using the mouse, and the mouse acquires the coordinates of the position clicked by the user as input coordinates and supplies them to the match determination unit.

  The present invention can be used for various devices that determine that a user is a human using a computer terminal, a portable terminal, or the like.

7 Network 11, 21, 51 Monitor 12, 23, 52 Touch panel 13, 33, 63 Target image generation unit 14, 34, 64 Match determination unit 15, 35, 65 Authentication determination unit 41, 42 Connection means

Claims (3)

Image display means for displaying on the screen a piece image for completing the jigsaw puzzle;
An acquisition means for acquiring a position of a destination of the piece image moved by a user's drag operation;
Based on the position of the movement destination of the piece image acquired by the acquisition unit, an authentication determination unit that determines that the authentication is successful when the jigsaw puzzle is completed;
A determination apparatus comprising: A drag operation means for performing the drag operation by the user;
The drag operation means acquires a plurality of positions on a route of the piece image moved by the drag operation,
The image display means displays on the screen the piece image for completing the jigsaw puzzle, a piece image that moves in accordance with the drag operation, and an image of the jigsaw puzzle after the piece images are combined. The determination apparatus according to claim 1, wherein: A determination method executed by a determination device that moves a piece image of a jigsaw puzzle and determines that authentication is successful when the jigsaw puzzle is completed,
An image display step for displaying the piece image for completing the jigsaw puzzle on a screen;
An acquisition step of acquiring a position of a destination of the piece image moved by a user's drag operation;
Based on the position of the movement destination of the piece image acquired by the acquisition step, an authentication determination step of determining successful authentication when the jigsaw puzzle is completed,
The determination method characterized by having.