JP2016053948A - Information processing device, information processing method, and information processing program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information processing device, an information processing method, and an information processing program, which are capable of displaying an image with a user's intent taken into consideration.SOLUTION: In a tablet terminal 100, a coordinate acquisition unit 112 within a control unit 110 acquires, from a touch panel display screen 132, contact location coordinates in an X-Y coordinate system of the touch panel display screen 132, and a vector acquisition unit 114 acquires a locus vector corresponding to a locus of the contact location coordinates. Furthermore, when a user makes a flick manipulation, if the speed of the last acquired locus vector is greater than or equal to a speed threshold, a display control unit 116 carries out display control which inertially scrolls the image in a direction of a greater component of X and Y components in the last acquired locus vector.SELECTED DRAWING: Figure 2

Description

The present invention relates to an information processing apparatus, an information processing method, and an information processing program.

A tablet terminal or the like in which a touch panel is incorporated in a display unit that displays an image and the image can be moved in accordance with a user's touch operation on the display unit is widely used (see, for example, Patent Document 1). In such a tablet terminal or the like, there is an operation method referred to as a flick operation that is operated by flipping a finger. When the flick operation is performed, the tablet terminal or the like moves the image displayed on the display unit by inertial scrolling in the direction of the flick operation.

Japanese Patent Laid-Open No. 10-161628

12 and 14 are images of a conventional inertial scroll. For example, assume that a tablet terminal illustrated by a solid line is reading the top of an electronic book and wants to flick in the Y-axis direction to display the bottom of the page. However, in reality, it is difficult to flick only in the Y-axis direction, which usually results in a flick operation having a slight X-axis component. As a result, inertial scrolling occurs like a tablet terminal illustrated by a dotted line, and characters at the beginning of each line protrude from the screen after movement. Therefore, after inertial scrolling, the user had to make adjustments so that the characters at the beginning of each line that protruded entered the screen.
Further, for example, as shown in FIG. 11, even if the user intends to move the image A only in the Y-axis direction and flicks only in the Y-axis direction, the user flicks in the X-axis direction. As a result, the image A may be displayed like the image N and a part of the image may be lost.

As described above, since the flick operation is an operation of flipping with a finger, even if the user intends to perform the flick operation in the vertical or horizontal direction, the flick operation is performed and the flick operation is performed in an oblique direction. However, the image moves in an oblique direction that is not intended, and the position of the image needs to be finely adjusted after the movement.

The present invention has been made in view of such a problem, and an object thereof is to provide an information processing apparatus, an information processing method, and an information processing program capable of displaying an image in consideration of a user's intention. .

In order to achieve the above object, an information processing apparatus according to the present invention corresponds to a display unit that displays an image, an input coordinate acquisition unit that acquires input coordinates, and a locus of input coordinates acquired by the input coordinate acquisition unit. A vector acquisition unit that acquires a vector to be performed, and a first operation in which a speed indicated by a vector acquired last by the vector acquisition unit is equal to or higher than a first predetermined value. The image displayed on the display means when the input coordinates are first acquired is moved in a first direction indicated by a vector component other than the smallest vector component among the plurality of vector components of the last acquired vector. Display control means for moving.

The display control means is an initial position corresponding to the input coordinates last acquired by the input coordinate acquisition means in the first operation within a first predetermined time from the start of image movement in the first direction. The first predetermined value is increased when the image moves to a first predetermined range including an extension line of the vector acquired last.

When the speed indicated by the last acquired vector is less than the first predetermined value, the display control means moves the image displayed on the display means in the direction indicated by the last acquired vector. Move.

The display control means includes the input coordinates last acquired by the input coordinate acquisition means in the first operation within a second predetermined time from the start of image movement in the direction indicated by the last acquired vector. Is moved to a second predetermined range including an initial position in the axial direction of a vector component other than the largest vector component among the plurality of vector components of the last acquired vector, The first predetermined value is decreased.

The display control means moves the image by inertial scrolling.

The input coordinate acquisition unit acquires input coordinates corresponding to a user operation.

The user operation is a flick operation.

In order to achieve the above object, an information processing apparatus according to the present invention includes a display unit that displays an image, an input coordinate acquisition unit that acquires input coordinates corresponding to a flick operation, and the input coordinate acquisition unit that acquires the input coordinates. Vector acquisition means for acquiring a vector corresponding to the locus of input coordinates, and when the finally acquired vector has a speed equal to or higher than a predetermined value, the image displayed at the start time of the flick operation is displayed as the vector. Display control means for inertial scrolling in the direction of the larger component.

The display control means is in an initial position that is an input coordinate first acquired by the input coordinate acquisition means in the first operation within a first predetermined time from the start of image movement in the first direction. The first predetermined value is increased when the corresponding image moves to a first predetermined range including an extension line of the first acquired vector.

When the speed indicated by the last acquired vector is less than the first predetermined value, the display control means moves the image displayed on the display means in the direction indicated by the last acquired vector. Move.

The display control means includes the input coordinates first acquired by the input coordinate acquisition means in the first operation within a second predetermined time from the start of image movement in the direction indicated by the last acquired vector. When the image corresponding to the initial position is moved to the second predetermined range including the initial position in the axial direction of the vector component other than the largest vector component among the plurality of vector components of the last acquired vector The first predetermined value is decreased.

In order to achieve the above object, an information processing method according to the present invention corresponds to a display step of displaying an image, an input coordinate acquisition step of acquiring input coordinates, and a locus of input coordinates acquired in the input coordinate acquisition step. A vector acquisition step of acquiring a vector to be performed, and a speed of a vector acquired last in the vector acquisition step is equal to or higher than a first predetermined value, a displayed image is converted to the last acquired vector Display control step of moving the first vector component and the second vector component perpendicular to each other in the first direction indicated by the larger vector component.

To achieve the above object, an information processing method according to the present invention includes a display step of displaying an image, an input coordinate acquisition step of acquiring input coordinates corresponding to a flick operation, and the input coordinate acquisition unit A vector acquisition step for acquiring a vector corresponding to a locus of input coordinates, and when the last acquired vector has a speed equal to or higher than a predetermined value, the image displayed at the start of the flick operation is the vector And a display control step for inertial scrolling in the direction of the larger component.
In order to achieve the above object, a program according to the present invention causes a computer to function as the above information processing apparatus.

According to the present invention, it is possible to display an image in consideration of the user's intention.

It is an external view of the tablet terminal as an information processor. It is a block diagram of a tablet terminal. It is a 1st flowchart which shows operation | movement of a tablet terminal. It is a 2nd flowchart which shows operation | movement of a tablet terminal. It is a 3rd flowchart which shows operation | movement of a tablet terminal. It is a figure which shows the 1st example of the image display accompanying operation. It is a figure which shows an example of a locus vector. It is a figure which shows the 2nd example of the image display accompanying operation. It is a figure which shows the 3rd example of the image display accompanying operation. It is a figure which shows the 4th example of the image display accompanying operation. It is a figure which shows the 5th example of the image display accompanying operation. It is a 1st image figure of the conventional inertial scroll at the time of flicking at high speed. It is an image figure of the inertia scroll of this invention at the time of flicking at high speed. It is a 2nd image figure of the conventional inertial scroll at the time of flicking at high speed.

Hereinafter, an information processing apparatus, an information processing method, and an information processing program according to embodiments of the present invention will be described with reference to the drawings. Reference numeral 150 in FIGS. 12, 13, and 14 denotes a finger trajectory by a high-speed flick operation. In the flick operation, at the end point of 150, the finger leaves the screen with speed.

Reference numeral 152 denotes a tracking scroll locus that is a method of processing an image until a finger is released from the screen by a flick operation. In order to make an easy-to-understand diagram, the arrow of the electronic book image is moved, not the arrow of the electronic book image, and the arrow is moved relative to the electronic book. Normally 152 is a vector having the same amount of movement as 150 but having the opposite direction.
Reference numeral 154 denotes an inertial scroll locus of the image processed after the flick operation is completed. In order to make an easy-to-understand diagram, the arrow of the electronic book image is moved, not the arrow of the electronic book image, and the arrow is moved relative to the electronic book.
In this case, the flick operation starts by bringing the finger into contact with the screen at the start point of the 150 arrow, and the finger is released from the screen with the speed at the end point of the 150 arrow while keeping the finger in contact with the screen. It is. In the case of the swipe operation, the image tracking scroll is finished when the finger is released, and the inertial scroll such as 154 is not performed. On the other hand, in the case of flicking, 154 inertial scrolling is started based on the speed and angle at the end point.
Generally, when flicking is performed as in 150, the image is scrolled following the movement of the finger faithfully as in 152 until the finger is released, and then inertial scrolling is performed as in 154 in FIG. 12 and 154 in FIG. However, in the present invention, inertial scrolling such as 154 in FIG. 13 can prevent the beginning of a line of an electronic book from protruding from the screen after inertial scrolling.

FIG. 1 is an external view of a tablet terminal as an information processing apparatus according to an embodiment of the present invention. As shown in FIG. 1, the tablet terminal 100 has a touch panel display surface 132 and operation buttons 140 arranged on the main surface of the housing.

FIG. 2 is a configuration diagram of the tablet terminal 100. As shown in FIG. 2, the tablet terminal 100 includes a control unit 110, a memory 120, a display unit 130, and operation buttons 140.

The control unit 110 is configured by a CPU (Central Processing Unit). The control unit 110 includes the tablet terminal 100 by executing software processing according to a program stored in the memory 120 (for example, a program for realizing the operation of the tablet terminal 100 illustrated in FIGS. 3 to 5 described later). Various functions (coordinate acquisition unit 112, vector acquisition unit 114, display control unit 116, etc.) are controlled.

The memory 120 is, for example, a RAM (Random Access Memory) or a ROM (Read Only Memory). The memory 120 stores various information (programs and the like) used for control and the like in the tablet terminal 100.

Display unit 130 includes a touch panel display surface 132. The touch panel display surface 132 is configured by, for example, an LCD (Liquid Crystal Display), a PDP (Plasma Display Panel), an EL (Electroluminescence) display, or the like. The touch panel display surface 132 displays an image according to the image signal output from the control unit 110.

The touch panel display surface 132 detects a contact position when a user's finger or the like comes into contact. For example, the touch panel type display surface 132 employs a capacitance method, and can detect a contact position based on a change in capacitance when a user's finger or the like comes into contact.

A part of the entire image 200 is displayed on the touch panel display surface 132 as shown in FIG. An XY coordinate system is set on the touch panel display surface 132. The touch panel display surface 132 detects the contact position coordinates including the X coordinate and the Y coordinate in the XY coordinate system. Furthermore, the touch panel display surface 132 outputs information on the contact position coordinates to the control unit 110.

The operation button 140 is operated by the user.

In addition, the tablet terminal 100 may include a hard disk drive (HDD), a camera, and the like.

Next, the operation of the tablet terminal 100 will be described. The following operation is performed when an image is displayed on the touch panel display surface 132. 3 to 5 are flowcharts showing the operation of the tablet terminal 100.

The touch panel display surface 132 detects contact of a user's finger or the like, and outputs information of the contact position coordinates in the XY coordinate system of the touch panel display surface 132 to the control unit 110 when detected. The coordinate acquisition unit 112 in the control unit 110 is a contact position coordinate that is the first contact position coordinate in the XY coordinate system of the touch panel display surface 132 from the touch panel display surface 132 every first predetermined time (t1). It is determined whether or not A (contact position coordinate A in FIG. 7) has been acquired (step S101). When the contact position coordinate A is acquired, the contact position coordinate A is stored in the memory 120.

When the contact position coordinate A is not acquired (step S101; NO), step S101 is repeated. On the other hand, when the contact position coordinate A is acquired (step S101; YES), the coordinate acquisition unit 112 acquires a contact position coordinate different from the contact position coordinate A after the first predetermined time has elapsed since the acquisition of the contact position coordinate A. It is determined whether or not (step S102). When a contact position coordinate different from the contact position coordinate A is acquired after the first predetermined time has elapsed since the acquisition of the contact position coordinate A, the contact position coordinate is stored in the memory 120.

If a contact position coordinate different from the contact position coordinate A has not been acquired after the first predetermined time has elapsed since the acquisition of the contact position coordinate A (step S102; NO), the series of operations ends. On the other hand, when a contact position coordinate different from the contact position coordinate A is acquired after the first predetermined time has elapsed since the acquisition of the contact position coordinate A (step S102; YES), the vector acquisition unit 114 in the control unit 110 A vector (trajectory vector) corresponding to the trajectory of the contact position coordinates is acquired (step S103).

Specifically, the vector acquisition unit 114 is output from the touch panel display surface 132 most recently, and is output from the touch panel display surface 132 immediately before the contact position coordinates (first coordinate) stored in the memory 120. Then, the contact position coordinates (second coordinates) stored in the memory 120 are read from the memory 120, and a trajectory vector having the second coordinates as the start point and the first coordinates as the end point is acquired. Information on the acquired trajectory vector (the direction and length of the trajectory vector) is stored in the memory 120, for example.

For example, consider a case where the contact position coordinates change in the order of A, B, C, and D as shown in FIG. In this case, the vector acquisition unit 114 outputs a trajectory vector having the contact position coordinate A as the start point and the contact position coordinate B as the end point when the contact position coordinate B is output from the touch panel display surface 132 and stored in the memory 120. Acquire α. Similarly, the vector acquisition unit 114 outputs a trajectory vector having the contact position coordinate B as the start point and the contact position coordinate C as the end point when the contact position coordinate C is output from the touch panel display surface 132 and stored in the memory 120. β is obtained, and when the contact position coordinate D is output from the touch panel display surface 132 and stored in the memory 120, a trajectory vector γ having the contact position coordinate C as the start point and the contact position coordinate D as the end point is acquired. . Note that the coordinate E is a coordinate of a point where the finger or the like is separated and is 0.5 t1 after the contact position coordinate D is acquired, and thus is not detected by the touch panel display surface 132. The trajectory vector δ is determined based on the trajectory vector γ. Specifically, the trajectory vector δ has a length proportional to the trajectory vector γ and is in the same direction as the trajectory vector γ.

Again, referring back to FIG. In step S103, after the vector corresponding to the trajectory of the contact position coordinates is acquired, the display control unit 116 in the control unit 110 performs display control for following and scrolling the image in the direction of the trajectory vector acquired by the vector acquisition unit 114. This is performed (step S104). The tracking scroll is a method of scrolling an image following the movement of a finger or the like, for example, an image scrolling method based on the trajectory vectors α, β, γ in FIG.

Specifically, the display control unit 116 displays one image by expanding one image in a VRAM (Video Random Access Memory) (not shown), cutting out an image to be displayed, and outputting the image to the touch panel display surface 132. I am letting. When scrolling, the display control unit 116 displays the image in the VRAM according to the length and direction of the vector having the same length as the trajectory vector acquired by the vector acquisition unit 114 and the reverse direction. Are sequentially moved. Furthermore, the display control unit 116 sequentially outputs the images cut out at the cutout positions to the touch-panel display surface 132 for each cutout position that is sequentially moved, so that the image in the direction of the trajectory vector acquired by the vector acquisition unit 114 is displayed. Scroll.

Next, the coordinate acquisition unit 112 determines whether or not the next contact position coordinates could not be acquired after the first predetermined time (t1) has elapsed since the acquisition of the contact position coordinates from the touch panel display surface 132, in other words, the user. It is determined whether or not the contact with the finger or the like is finished (step S105). For example, the coordinate acquisition unit 112 is reset every time the contact position coordinates are acquired from the touch panel display surface 132, and whether or not the time indicated by a timer (not shown) that starts timing has passed the first predetermined time. Determine.

As described above, the first predetermined time (t1) is a cycle in which the coordinate acquisition unit 112 acquires the contact position coordinates from the touch panel display surface 132. Therefore, when the contact of the user's finger or the like continues, the coordinate acquisition unit 112 acquires the contact position coordinates from the touch panel display surface 132 every first predetermined time. On the other hand, when the contact of the user's finger or the like is completed (coordinate E in FIG. 7), the coordinate acquisition unit 112 performs the next contact after the elapse of the first predetermined time (t1) after acquiring the contact position coordinates. The position coordinates cannot be acquired. For this reason, when the coordinate acquisition unit 112 cannot acquire the next contact position coordinates after the elapse of the first predetermined time (t1) after acquiring the contact position coordinates from the touch panel display surface 132, the user's finger It can be considered that the contact by etc. was complete | finished.

If the contact with the user's finger or the like has not ended (step S105; NO), in other words, the first predetermined time (t1) after the coordinate acquisition unit 112 acquires the contact position coordinates from the touch panel display surface 132. When the next contact position coordinates (new contact position coordinates) are acquired after the elapse of time, the coordinate acquisition unit 112 determines whether or not the new contact position coordinates are the same as the previous contact position coordinates. Determination is made (step S106).

If the new contact position coordinates are the same as the previously acquired contact position coordinates (step S106; YES), it is considered that a swipe operation has been performed, and the series of operations ends. On the other hand, when the new contact position coordinates are not the same as the previous contact position coordinates (step S106; NO), the operations after step S103 are repeated.

On the other hand, when the contact with the user's finger or the like is completed (step S105; YES), in other words, the first predetermined time (t1) after the coordinate acquisition unit 112 acquires the contact position coordinates from the touch panel display surface 132. If the next contact position coordinate cannot be acquired after the elapse (coordinate E in FIG. 7), it is considered that the flick operation has been performed, and the display control unit 116 in the control unit 110 detects the trajectory vector ( It is determined whether or not the speed indicated by the trajectory vector γ) in FIG. 7 is equal to or higher than the speed threshold (step S107). The information on the speed threshold is stored in, for example, the memory 120, and the display control unit 116 compares the speed indicated by the trajectory vector acquired last with the speed threshold read from the memory 120.

When the speed indicated by the last acquired trajectory vector is equal to or higher than the speed threshold (step S107; YES), the process proceeds to the operation shown in FIG. 4, and the display control unit 116 displays the Y component (touch panel type) in the last acquired trajectory vector. It is determined whether or not the component in the Y-axis direction in the XY coordinate system of the display surface 132 is greater than the X component (component in the X-axis direction in the XY coordinate system of the touch panel display surface 132) (step S111). . For example, in the example shown in FIG. 7, when γx, which is the X component of the trajectory vector γ, is compared with γy, which is the Y component, γy is larger.

If the Y component in the last acquired trajectory vector is larger than the X component (step S111; YES), it is assumed that the user intends inertial scrolling only in the Y component direction. This is because the operator's intention to seek position correction is hidden only in the last acquired vector among a number of single vectors acquired each time the position coordinates are acquired. This is neither described nor suggested in the prior art literature.
In this case, the display control unit 116 assumes that there is no movement in the X component direction, and returns the X coordinate of the image corresponding to the contact position coordinate A to the X coordinate of the contact position coordinate A, and then the contact position coordinate Display control for inertial scrolling of the image corresponding to A in the Y-axis direction is performed (step S112). Here, the image corresponding to the contact position coordinate A means an image displayed at the position of the contact position coordinate A when the contact position coordinate A is acquired in response to the first contact by the user. In the example shown in FIG. 8, it is a character image 201. In the example shown in FIG. 8, the image 200 is inertial scrolled in the Y-axis direction, and the character image 201 that is a part of the image 200 is in the Y-axis position A (corresponding to the contact position coordinate A in FIG. 7). To position L. Note that the display control in step S112 may be performed only when the angle of the trajectory vector acquired last with respect to the Y axis is equal to or less than a predetermined angle (for example, 30 ° or less).

Specifically, the display control unit 116 sets the last cutout position when one image developed in the VRAM is cut out sequentially in the follow-up scroll of the image in step S104, specifically, the touch panel type. The display surface 132 is moved in the direction corresponding to the X-axis direction in the XY coordinate system and opposite to the X component of the trajectory vector acquired last, and the initial cutout position and the horizontal position are the same. To be. Next, the display control unit 116 further determines the cut-out position after the movement in the vertical direction, specifically, the direction corresponding to the Y-axis direction in the XY coordinate system of the touch panel display surface 132, and finally The acquired trajectory vector is sequentially moved in the direction opposite to the Y component. At this time, the display control unit 116 gradually decreases the moving amount of the cutout position for inertial scrolling of the image. Further, the display control unit 116 sequentially outputs the images cut out at the cut-out positions to the touch-panel display surface 132 for each cut-out position that sequentially moves, thereby causing the image to inertial scroll.

Thereby, for example, what is conventionally scrolled in the direction in which the image is flicked on the touch panel type display surface 132 is inertial scrolled in the Y-axis direction as shown in FIG. The image 201 moves from position A to position L.

On the other hand, when the Y component in the trajectory vector acquired last is not larger than the X component (step S111; NO), it is considered that the user intends the inertial scroll only in the X component direction. In this case, the display control unit 116 assumes that there is no movement in the Y component direction, returns the Y coordinate of the image corresponding to the contact position coordinate A to the Y coordinate of the contact position coordinate A, and then the contact position coordinate. Display control for inertial scrolling of the image corresponding to A in the X-axis direction is performed (step S113). Note that the display control in step S113 may be performed only when the angle of the trajectory vector acquired last with respect to the X axis is equal to or less than a predetermined angle (for example, 30 ° or less).

Specifically, the display control unit 116 sets the last cutout position when one image developed in the VRAM is cut out sequentially in the follow-up scrolling of the image in step S104, specifically, the touch panel type. The display surface 132 is moved in the direction corresponding to the Y-axis direction in the XY coordinate system and opposite to the Y component of the trajectory vector acquired last, and the initial cutout position and the vertical position are the same. To be. Next, the display control unit 116 further determines the cut-out position after the movement in the horizontal direction, specifically, the direction corresponding to the X-axis direction in the XY coordinate system of the touch panel display surface 132. The acquired trajectory vector is sequentially moved in the direction opposite to the X component. At this time, the display control unit 116 gradually decreases the moving amount of the cutout position for inertial scrolling of the image. Further, the display control unit 116 sequentially outputs the images cut out at the cut-out positions to the touch-panel display surface 132 for each cut-out position that sequentially moves, thereby causing the image to inertial scroll.

After the inertial scrolling of the image is started in step S112 or step S113, the display control unit 116 automatically starts after the inertial scrolling starts and ends in a predetermined inertial scrolling time (the inertial scrolling starts. (Time until) Within the time obtained by adding Ta and the grace time Tb, it is determined whether or not the image corresponding to the contact position coordinate A has entered the extension line region corresponding to the trajectory vector acquired last (step) S114).

In step S114, the display control unit 116 resets at the timing when the inertial scrolling of the image in step S112 or step S113 is started, and the time indicated by a timer (not shown) that starts timing is the inertial scrolling time Ta. It is determined whether it is within the time obtained by adding the grace time Tb.

When the time indicated by the timer is within the time obtained by adding the inertia scroll time Ta and the grace time Tb, the display control unit 116 further displays that the image corresponding to the contact position coordinate A corresponds to the trajectory vector acquired last. It is determined whether or not the extension line area is entered. For example, as shown in FIG. 9, on the touch-panel display surface 132, a band-shaped region in a predetermined range extending around the extension line of the trajectory vector 210 acquired last from the first contact position A of the flick operation is extended. A line region 212 is formed.

Specifically, the display control unit 116 acquires an image movement vector S indicating the amount of image movement by inertial scrolling. The display control unit 116 can acquire the image movement vector S based on the display control of inertial scroll by itself.

Further, the display control unit 116 acquires a contact position movement vector T indicating a change in the contact position after the end of the inertial scroll based on the contact position coordinates acquired by the coordinate acquisition unit 112 after the end of the inertial scroll. Here, the end of the inertial scroll includes a case where the inertial scroll ends automatically, and a case where the user forcibly ends the inertial scroll when the user touches the touch panel type display surface 132 during the inertial scroll. There is.

Then, the display control unit 116 adds the image movement vector S and the contact position movement vector T starting from the first contact position (initial position) of the flick operation on the touch panel display surface 132, and ends the addition result vector. Is determined to be within the extension region. If the end point of the addition result vector is within the extension line area, the image corresponding to the contact position coordinate A is within the extension line area corresponding to the trajectory vector acquired last.

For example, as shown in FIG. 9, the image 201 at the position A, which is the initial contact position (initial position) of the flick operation, is moved to the position L by the inertial scroll of the image 200, and further the contact by the user after the end of the inertial scroll. Consider a case in which the position is moved to a position M by an operation. In this case, the display control unit 116 adds the image movement vector S and the contact position movement vector T1 with the position A, which is the first contact position (initial position) of the flick operation, as the start point, thereby setting the position M as the end point. Get the addition result vector. Since the position M which is the end point of the addition result vector is in the extension line region 212, it is determined that the image corresponding to the contact position coordinate A is in the extension line region corresponding to the trajectory vector acquired last. .

It is not necessary to consider the actual contact position by the user in acquiring the contact position movement vector. For example, the contact position movement vectors T1 and T2 in FIG. 9 are the same vector with the same length and direction, although the contact positions are different. Therefore, even when the image movement vector S and the contact position movement vector T2 are added starting from the position A which is the first contact position (initial position) of the flick operation, the addition result vector having the position M as the end point is acquired. Then, it is determined that the image corresponding to the contact position coordinate A is within the extension line region corresponding to the trajectory vector acquired last.

When the image corresponding to the contact position coordinate A enters the extension line region corresponding to the last acquired trajectory vector within the time obtained by adding the inertia scroll time Ta and the grace time Tb from the start of the inertia scroll. In (Step S114; YES), the user originally wanted to inertial scroll the image in the direction of the flicked vector, for example, to move the image 201 in the image 200 from the position A to the position M in FIG. Regardless, the display control unit 116 has inertial scrolled in the Y-axis direction in step S112 or has been inertial scrolled in the X-axis direction in step S113, so that the image has moved in a direction not intended by the user. For example, in FIG. 9, the image 200 is inertial scrolled in the Y-axis direction, and the image 201 is positioned at the position A. It can be regarded as a has moved to La position L.

In this case, since the speed threshold is low, the processing in step S112 and step S113 has been executed, and therefore the display control unit 116 increases the current speed threshold (step S115). The new speed threshold value after the increase is stored in the memory 120. For example, the speed history indicated by the trajectory vector at the time of the flick operation is stored in the memory 120, and the display control unit 116 uses the average value of the speed history indicated by the trajectory vector at the time of the flick operation as the speed threshold value. It is good.

On the other hand, within the time obtained by adding the inertia scroll time Ta and the grace time Tb from the start of the inertia scroll, the image corresponding to the contact position coordinate A enters the extension line region corresponding to the last acquired trajectory vector. If not (step S114; NO), the series of operations ends.

If the speed indicated by the last acquired vector is not equal to or higher than the speed threshold (step S107 in FIG. 3; NO), it is regarded as a fine correction of the position of the image, and the process proceeds to the operation shown in FIG. The unit 116 performs display control for inertial scrolling in the direction of the trajectory vector acquired last (step S121).

Specifically, the display control unit 116 determines the image cut-out position in the VRAM according to the length and direction of the vector having the same length and the opposite direction as the trajectory vector acquired by the vector acquisition unit 114. Are moved sequentially. At this time, the display control unit 116 gradually decreases the moving amount of the cutout position for inertial scrolling of the image. Further, the display control unit 116 sequentially outputs the images cut out at the cut-out positions to the touch-panel display surface 132 for each cut-out position that sequentially moves, thereby causing the image to inertial scroll.

As a result, for example, as shown in FIG. 10, the image 200 is inertial scrolled in the direction of the trajectory vector obtained last on the touch panel display surface 132, and the image 201 that is a part of the image 200 is moved from the position A to the position N. Moving.

Next, the display control unit 116 determines that the Y component (component in the Y-axis direction in the XY coordinate system of the touch panel display surface 132) in the trajectory vector acquired last is the X component (XY of the touch panel display surface 132). It is determined whether or not it is greater than the component in the coordinate system in the X-axis direction (step S122).

When the Y component in the last acquired trajectory vector is larger than the X component (step S122; YES), the display control unit 116 determines a predetermined inertial scroll time (the inertial scroll is started) from the start of the inertial scroll. The time from the time until the automatic end to the time) within a time obtained by adding Ta and the delay time Tb, it is determined whether or not the image corresponding to the contact position coordinate A has returned to the X coordinate of the contact position coordinate A ( Step S123).

In step S123, the display control unit 116 resets at the timing when the inertial scrolling of the image in step S121 is started, and the time indicated by a timer (not shown) that starts timing is the inertial scrolling time Ta and the grace time Tb. It is determined whether or not it is within the time obtained by adding.

When the time indicated by the timer is within the time obtained by adding the inertia scroll time Ta and the grace time Tb, the display control unit 116 further displays the initial position image corresponding to the initial contact position of the flick operation. It is determined whether or not the position has returned to the position on the X coordinate. For example, as shown in FIG. 11, on the touch-panel display surface 132, a band-shaped region (initial region) in a predetermined range extending in the Y-axis direction centering on the X coordinate (Xa) of the first contact position A of the flick operation. 214 is set.

Specifically, the display control unit 116 acquires an image movement vector U indicating the amount of image movement by inertial scrolling. The display control unit 116 can acquire the image movement vector U based on the display control of inertial scroll by itself.

Further, the display control unit 116 acquires a contact position movement vector V indicating a change in the contact position after the end of the inertia scroll based on the contact position coordinates acquired by the coordinate acquisition unit 112 after the end of the inertia scroll. Here, the end of the inertial scroll includes a case where the inertial scroll ends automatically, and a case where the user forcibly ends the inertial scroll when the user touches the touch panel type display surface 132 during the inertial scroll. There is.

Then, the display control unit 116 adds the image movement vector U and the contact position movement vector V starting from the first contact position (initial position) of the flick operation on the touch panel display surface 132, and ends the addition result vector. Is in the initial region. If the end point of the addition result vector is within the initial region, the image corresponding to the contact position coordinate A has returned to the X coordinate of the contact position coordinate A.

For example, as shown in FIG. 11, the image 201 at position A, which is the initial contact position (initial position) of the flick operation, is moved to position N by inertial scrolling of the image 200, and further contacted by the user after the end of inertial scrolling. Consider the case of moving to position P by an operation. In this case, the display control unit 116 adds the image movement vector U and the contact position movement vector V1 with the position A, which is the first contact position (initial position) of the flick operation, as the start point, thereby setting the position P as the end point. Get the addition result vector. Since the position P which is the end point of the addition result vector is in the initial region 214, it is determined that the image corresponding to the contact position coordinate A has returned to the X coordinate of the contact position coordinate A.

It is not necessary to consider the actual contact position by the user in acquiring the contact position movement vector. For example, the contact position movement vectors V1 and V2 in FIG. 11 are the same vector with the same length and direction, although the contact positions are different. Therefore, even when the image movement vector U and the contact position movement vector V2 are added starting from the position A which is the first contact position (initial position) of the flick operation, the addition result vector having the position P as the end point is acquired. It is determined that the image corresponding to the contact position coordinate A has returned to the X coordinate of the contact position coordinate A.

When the image corresponding to the contact position coordinate A returns to the X coordinate of the contact position coordinate A within the time obtained by adding the inertia scroll time Ta and the delay time Tb from the start of the inertia scroll (step S123; YES) ) Although the user originally wanted to inertial scroll the image along the Y-axis direction of the touch panel display surface 132, the display control unit 116 inertially scrolls the image in the direction of the trajectory vector in step S121. As a result, the image has moved faithfully in the flicked direction of the user. For example, in FIG. 11, the image 200 inertial scrolls in the direction of the trajectory vector, and the image 201 moves from position A to position N. Can be regarded as having In this case, since the speed threshold value is high, the process of step S121 is selected in step S107 instead of step S111. Therefore, the display control unit 116 decreases the current speed threshold value (step S107). S124). The new speed threshold value after the decrease is stored in the memory 120. For example, the speed history indicated by the trajectory vector at the time of the flick operation is stored in the memory 120, and the display control unit 116 uses the average value of the speed history indicated by the trajectory vector at the time of the flick operation as the speed threshold value. It is good.

On the other hand, when the image corresponding to the contact position coordinate A has not returned to the X coordinate of the contact position coordinate A within the time obtained by adding the inertia scroll time Ta and the grace time Tb from the start of the inertia scroll (step) In S123; NO), a series of operations ends.

On the other hand, when the Y component in the last acquired trajectory vector is not larger than the X component (step S122; NO), the display control unit 116 determines a predetermined inertial scrolling time (inertial scrolling) from the start of inertial scrolling. Whether the image corresponding to the contact position coordinate A has returned to the Y coordinate of the contact position coordinate A within the time obtained by adding Ta and the delay time Tb. Determination is made (step S125).

Specific processing is the same as that in step S123. That is, in step S125, the display control unit 116 resets at the timing at which the inertial scrolling of the image in step S121 is started, and the time indicated by a timer (not shown) that starts timing is delayed from the inertial scrolling time Ta. It is determined whether it is within the time obtained by adding the time Tb.

When the time indicated by the timer is within the time obtained by adding the inertia scroll time Ta and the grace time Tb, the display control unit 116 further displays the initial position image corresponding to the initial contact position of the flick operation. It is determined whether or not the position has returned to the position on the Y coordinate.

Specifically, the display control unit 116 acquires an image movement vector U indicating the amount of image movement by inertial scrolling. The display control unit 116 can acquire the image movement vector U based on the display control of inertial scroll by itself.

Further, the display control unit 116 acquires a contact position movement vector V indicating a change in the contact position after the end of the inertia scroll based on the contact position coordinates acquired by the coordinate acquisition unit 112 after the end of the inertia scroll. Here, the end of the inertial scroll includes a case where the inertial scroll ends automatically, and a case where the user forcibly ends the inertial scroll when the user touches the touch panel type display surface 132 during the inertial scroll. There is.

Then, the display control unit 116 adds the image movement vector U and the contact position movement vector V starting from the first contact position (initial position) of the flick operation on the touch panel display surface 132, and ends the addition result vector. Is in the initial region. If the end point of the addition result vector is within the initial region, the image corresponding to the contact position coordinate A has returned to the Y coordinate of the contact position coordinate A.

When the image corresponding to the contact position coordinate A returns to the X coordinate of the contact position coordinate A within the time obtained by adding the inertia scroll time Ta and the delay time Tb from the start of the inertia scroll (step S125; YES) ) Although the user originally wanted to inertial scroll the image along the X-axis direction of the touch panel display surface 132, the display control unit 116 inertially scrolls the image in the direction of the trajectory vector in step S121. Therefore, it can be considered that the image has faithfully moved in the flicked direction of the user. In this case, since the speed threshold value is high, the process of step S121 is selected in step S107 instead of step S111. Therefore, the display control unit 116 decreases the current speed threshold value (step S107). S126). The new speed threshold value after the decrease is stored in the memory 120. For example, the speed history indicated by the trajectory vector at the time of the flick operation is stored in the memory 120, and the display control unit 116 uses the average value of the speed history indicated by the trajectory vector at the time of the flick operation as the speed threshold value. It is good.

On the other hand, when the image corresponding to the contact position coordinate A has not returned to the X coordinate of the contact position coordinate A within the time obtained by adding the inertia scroll time Ta and the grace time Tb from the start of the inertia scroll (step) In S125; NO), the series of operations ends.

Thus, in the tablet terminal 100, the coordinate acquisition unit 112 in the control unit 110 acquires the contact position coordinates in the XY coordinate system of the touch panel display surface 132 from the touch panel display surface 132, and the vector acquisition unit. 114 acquires a trajectory vector corresponding to the trajectory of the contact position coordinates. Furthermore, when the user performs a flick operation, if the speed of the trajectory vector acquired last is equal to or higher than the speed threshold value, the display control unit 116 has a larger X component and Y component in the trajectory vector acquired last. Display control for inertial scrolling of the image in the direction of the component is performed.

Since the flick operation is an operation of flipping with a finger, blurring is likely to occur and the operation is not necessarily performed in the direction intended by the user, and as a result, the image may move in a direction not intended by the user. However, if the speed of the trajectory vector acquired last in the flick operation is high, it is assumed that the user does not perform the flick operation in the vertical or horizontal direction, and the X component and Y component in the last acquired vector are considered. Of these, display control for inertial scrolling of the image in the direction of the larger component is performed, whereby the image can be moved in the vertical or vertical direction intended by the user. For example, as shown in FIG. 8, the image 200 is inertial scrolled in the Y-axis direction, and the image 201 moves from the position A to the position L.
As shown in FIG. 13, even if a flick operation is performed, if it is a high-speed flick operation, the movement in the X-axis direction is returned to the original, and then the inertial scroll is performed only in the Y-axis direction.

On the other hand, although the user originally wanted to inertial scroll the image in the direction of the last acquired trajectory vector (for example, the user has finely corrected the position of the image), the last acquired trajectory described above. When display control for inertia scrolling the image in the direction of the larger component of the X component and Y component in the vector is performed, for example, as shown in FIG. 9, the image 200 is inertia scrolled in the Y axis direction. Thus, the image 201 may move from the position A to the position L. In this case, by detecting the operation of returning to the extension line area (step S114 in FIG. 4; YES), the user intends to fine-correct the position of the image and increases the speed threshold. In subsequent operations, the image can be moved (such as fine correction) in the direction intended by the user.

Further, the display control unit 116 is a display for inertial scrolling of the image in the direction of the last acquired trajectory vector if the speed of the trajectory vector acquired last is less than the speed threshold when the user performs a flick operation. Take control. If the speed of the last acquired trajectory vector in the flick operation is small, it is assumed that the user has performed the flick operation in the direction intended by the user (such as an operation for fine correction), and the last acquired trajectory vector By performing display control for inertial scrolling of the image in the direction, the image can be moved (such as fine correction) in the direction intended by the user (FIG. 10).

On the other hand, although the user originally wanted to inertial scroll the image along the X-axis direction or the Y-axis direction of the touch panel display surface 132, the image is inertial scrolled in the direction of the trajectory vector acquired last. Display control may be performed. In this case, by detecting an operation for returning to the initial region (step S123 in FIG. 5; YES, step S125; YES), the user's intention is grasped and the speed threshold value is decreased. The image can be moved in the intended direction.

The flick operation and the swipe operation have two types of meanings although they are the same operation.
One is an operation for displaying another image from the image currently displayed by the user.
The other is that the user flicks in an oblique direction, but the user unconsciously flicks it in an oblique direction, even though he / she wants to display another image that is far away in the vertical (horizontal) direction from the image currently displayed. Therefore, the device moved in an oblique direction against the user's intention to move in the vertical (horizontal) direction, and as a result, the image that the user wanted to display was not displayed. This is an operation for the user to unavoidably correct the image displayed by the apparatus to the position intended by the user. In the present invention, it is possible to distinguish the difference between these two types of operations (the presence or absence of unavoidable).
Note that the present invention is not limited by the description of the above-described embodiment and the drawings, and appropriate modifications and the like can be made to the above-described embodiment and the drawings.

In the above-described embodiment, the touch panel type display surface 132 detects an image movement operation by the user, but the image movement operation by the user is not limited to the contact operation, and a detection unit corresponding to the image movement operation is provided. It only has to be.

In the above-described embodiment, the case where the tablet terminal 100 is used as the information processing apparatus has been described. However, an image moving operation by a user such as a mobile phone such as a smartphone, a tablet personal computer, or a laptop personal computer is possible. The present invention can be applied to any information processing apparatus.

For example, the function of the tablet terminal 100 may be realized by a computer executing a program. A program for realizing the functions of the tablet terminal 100 may be stored in a storage medium such as a CD-ROM (Compact Disc Read Only Memory), or may be downloaded to a computer via a network.

As mentioned above, although preferable embodiment of this invention was described, this invention is not limited to the specific embodiment which concerns, This invention includes the invention described in the claim, and its equivalent range It is.

DESCRIPTION OF SYMBOLS 100 ... Tablet terminal, 110 ... Control part, 112 ... Coordinate acquisition part, 114 ... Vector acquisition part, 116 ... Display control part, 120 ... Memory, 130 ... Display part, 132 ... Touch panel type display surface, 140 ... Operation button, 150 ... Finger trajectory by flick operation, 152. Tracing scroll trajectory during flick operation, 154. Inertial scroll trajectory after flick operation

Claims (13)

Display means for displaying an image;
Input coordinate acquisition means for acquiring input coordinates;
Vector acquisition means for acquiring a vector corresponding to the locus of input coordinates acquired by the input coordinate acquisition means;
When the input coordinate is first acquired by the input coordinate acquisition unit when the first operation in which the speed indicated by the vector acquired last by the vector acquisition unit is equal to or higher than the first predetermined value is performed. Display control means for moving the image displayed on the display means in a first direction indicated by a vector component other than the smallest vector component among the plurality of vector components of the last acquired vector;
An information processing apparatus comprising: The display control means is in an initial position that is an input coordinate first acquired by the input coordinate acquisition means in the first operation within a first predetermined time from the start of image movement in the first direction. The information processing apparatus according to claim 1, wherein the first predetermined value is increased when a corresponding image moves to a first predetermined range including an extension line of the first acquired vector. The display control means moves the image displayed on the display means in a direction indicated by the last acquired vector when the speed indicated by the last acquired vector is less than a first predetermined value. The information processing apparatus according to claim 1, wherein the information processing apparatus is moved. The display control means includes the input coordinates first acquired by the input coordinate acquisition means in the first operation within a second predetermined time from the start of image movement in the direction indicated by the last acquired vector. When the image corresponding to the initial position is moved to the second predetermined range including the initial position in the axial direction of the vector component other than the largest vector component among the plurality of vector components of the last acquired vector The information processing apparatus according to claim 3, wherein the first predetermined value is decreased. The information processing apparatus according to claim 1, wherein the display control unit moves the image by inertial scrolling. The information processing apparatus according to claim 1, wherein the input coordinate acquisition unit acquires input coordinates corresponding to a user operation. The information processing apparatus according to claim 6, wherein the user operation is a flick operation. Display means for displaying an image;
Input coordinate acquisition means for acquiring input coordinates corresponding to the flick operation;
Vector acquisition means for acquiring a vector corresponding to the locus of the input coordinates acquired by the input coordinate acquisition means;
Display control means for inertial scrolling the image displayed at the start time of the flick operation in the direction of the larger component of the vector when the finally acquired vector has a speed equal to or higher than a predetermined value;
An information processing apparatus comprising: The display control means performs a scroll operation for moving the inertia scrolled image within a predetermined range from an extension line of the vector acquired last within a first predetermined time from the start of the inertia scroll. The information processing apparatus according to claim 8, wherein the predetermined value is increased in the event of a failure. The display control means has a speed at which the last calculated vector is less than the predetermined value,
In addition, a movement amount of a small component of a movement vector indicating movement of the image from the start time of the flick operation to the end time of the inertia scroll within a second predetermined time from the start of the inertia scroll in the vector direction The information processing apparatus according to claim 9, wherein the predetermined value is decreased when an image scroll operation to approach 0 is performed. A display step for displaying an image;
An input coordinate acquisition step for acquiring input coordinates;
A vector acquisition step of acquiring a vector corresponding to the locus of the input coordinates acquired in the input coordinate acquisition step;
A first vector component perpendicular to each other of the last acquired vector when the speed indicated by the last acquired vector in the vector acquiring step is equal to or higher than a first predetermined value; And a display control step of moving in the first direction indicated by the larger vector component of the second vector components;
An information processing method including: A display step for displaying an image;
An input coordinate acquisition step of acquiring input coordinates corresponding to the flick operation;
A vector acquisition step of acquiring a vector corresponding to the locus of the input coordinates acquired by the input coordinate acquisition means;
A display control step of inertial scrolling the image displayed at the start of the flick operation in the direction of a larger component of the vector, when the vector acquired at the last is a speed equal to or higher than a predetermined value;
An information processing method including: The program for functioning a computer as an information processing apparatus of any one of Claims 1-10.

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