JP4725423B2 - Image processing device - Google Patents

Description

  The present invention relates to an image processing apparatus that processes an image, and more particularly to a navigation apparatus and the like.

  As a background art, one that automatically scrolls and displays an image is known (for example, Patent Documents 1 and 2).

JP 2003-108729 A (see FIG. 6) JP 2000-20212 A (refer to FIGS. 4 to 8)

  According to the background art, when a scrolled image is selected on a touch panel or the like, the user must watch the image in order to match the display coordinates of the image with the contact coordinates on the touch panel or the like. I must. However, when the image is scroll-displayed, it is not easy for the user to match the display coordinates related to the image with the contact coordinates on the touch panel or the like.

  On the other hand, the user can temporarily stop the scroll display when the image to be selected is displayed in order not to gaze at the scroll displayed image. However, in this case, the scroll operation for fine adjustment is performed again, or the operation for selecting an image and the operation for stopping the scroll display are performed separately. There was a problem of feeling.

In the image processing apparatus according to the present invention, when the detection unit detects that an object has approached the operation region of the operation unit when scroll display is performed in the display region of the display unit, the scroll speed according to the scroll display Is provided with a processing unit that decelerates . The interpretation of lexical terms in the present invention is as follows.

  “Image” is interpreted broadly. Specifically, there are topographic maps, road maps, and facility maps (so-called landmarks).

The “ operation device (operation unit) ” is sufficient if it has an operation region on the display region of the display device (display unit) . Specific devices include a contact sensor (so-called touch panel or the like) for detecting contact coordinates, a non-contact sensor (so-called infrared sensor or the like) for detecting presence coordinates, and the like.

  “Connected to” is a concept that includes direct connection and indirect connection.

  “Scroll display” refers to moving an image within a display area. Specific methods include a clipping (cutout) method and a redraw (redrawing) method.

The “scrolled image” is a concept that includes a scrolled image, a scrollable image, and a scrolled image.

  The “object” may be a tangible object used by the user for the operation. Specifically, there are a finger, a hand, a writing instrument, a cigarette, a stylus, and the like.

  “Or around” includes a housing portion surrounding a display area below the operation area.

The “ detection device (detection unit) ” is a device whose output value changes when an object approaches a detection region. The “output value” may be binary (ON / OFF, high / low, etc.) or multi-value.

“Determined by using” means that it does not matter where the object is required to “be close to the operation area”. Examples of the “part” include a processing unit provided in a “processing unit” and a “ display device (display unit) ” which will be described later.

  “Scrolling speed” means the speed at which an image moves during scroll display.

  “Decelerate scrolling” means at least that the current scroll speed is lower than the initial speed related to the scroll speed.

  The “processing unit” executes specific processing by cooperation of hardware or hardware and software.

  The “processing unit” is preferably configured to vary the deceleration related to the scroll speed according to the initial speed related to the scroll speed. Here, the “deceleration related to the scroll speed” is a concept including a value obtained by dividing the scroll speed after deceleration by the initial speed related to the scroll speed.

The “processing unit” preferably obtains the scroll speed using the distance when the distance between the object and the operation area is obtained using an output value from the detection device (detection unit). is there. Here, “determining the scroll speed using the distance” is a concept including a function having “scroll speed” before “approaching” as an initial speed and “distance” as a variable. Examples of the “function” include a proportional function, an inverse proportional function, an exponential function, and a Gaussian function.

The “processing unit” preferably sets the scroll speed to zero when coordinates in the operation area are obtained using an output value from the operation device (operation unit) . Here, “the coordinate value in the operation area is obtained using the output value of the operation device (operation unit) ” means that the user has selected a specific coordinate. For example, if the “ operation device (operation unit) ” is a touch panel, the state in which the finger and the touch panel are in contact corresponds to “in the operation area...

The “image processing apparatus” is sufficient if it includes a part that executes image processing, and it does not matter whether it includes a “ display apparatus (display unit) ” or the like. In the claims, the “image processing system” is defined as an object in which a “ display device (display unit) ” or the like is connected to an “image processing device”.

  Note that the image processing apparatus according to the present invention sets both “when scroll display is being performed” and “when an object is obtained” as a condition for “decrease the scroll speed”. This is different from the technique (see Japanese Patent Application Laid-Open No. 11-64026) in which scroll display is started at a speed determined using the distance between the object and the operation area.

  The present invention reduces the scroll speed on condition that the object approaches the operation area, and thus has an effect of allowing the user to select a scroll-displayed image with a linear motion.

(A) A display example according to the best mode for carrying out the image processing apparatus according to the present invention, showing a display example before a finger or the like approaches the operation area. (B) A table according to the present embodiment. FIG. 4C is a display example showing a display example while a finger or the like is approaching the operation area. FIG. 5C is a display example according to the present embodiment, and shows a display example when the finger or the like touches the operation area. Figure The figure which shows the hardware constitutions concerning this Embodiment The figure which shows the relationship between the display area, operation area, and detection area which concerns on this Embodiment. (Memory map) diagram showing the storage area of the RAM according to the present embodiment Flow chart showing the flow of deceleration processing according to the present embodiment The figure which shows the relationship between the scroll speed v and the distance d which concerns on this Embodiment. The figure which shows the relationship between the scroll speed v and the initial speed v0 which concern on a modification.

  The best mode for carrying out the image processing apparatus according to the present invention is shown in FIGS.

  <Display Example> A display example according to the present embodiment is shown in FIG. In the display area, landmarks and the like are scroll-displayed at a scroll speed v0 (hereinafter referred to as initial speed) (see FIG. 1A). When the finger or the like is not approaching the operation area on the display area, the scroll display at the scroll speed v0 is continued.

  When scroll display is performed at the scroll speed v0, when a finger or the like approaches the operation area, the landmarks are scroll-displayed at the scroll speed v1 (0 <v1 <v0) (see FIG. 1B). reference). That is, the scroll speed v is decelerated.

  When a finger or the like touches the operation area while approaching the operation area, the landmark or the like is scroll-displayed in a state where the scroll speed v is 0 (see FIG. 1C). That is, the scroll display ends. At this time, if the display coordinates of the landmark and the like and the contact coordinates of the finger or the like match or substantially match, the landmark or the like is considered to be selected by the user. The above processing is realized by the following configuration.

<Hardware Configuration> The hardware configuration according to this embodiment is shown in FIG. The image processing system 1 includes a display unit 2 that provides a display region, an operation unit 3 that provides an operation region, a detection unit 4 that provides a detection region, and an image processing device 5 that is directly or indirectly connected to these devices. With. In the present embodiment, a liquid crystal display, a touch panel, and a proximity sensor are used as the display unit 2, the operation unit 3, and the detection unit 4 , respectively.

The relationship between the display area, the operation area, and the detection area is shown in FIG. The operation area is provided on the display area. That is, the contact coordinates in the operation area and the display coordinates in the display area substantially coincide. The detection area is an area where each detection unit 4a, 4b detects a finger or the like, and corresponds to the operation area (or the display area) and its periphery.

The display unit 2 includes a microcomputer (not shown). In addition to the display process, the display unit 2 uses a process for calculating the contact coordinates p using an output value from the operation unit 3 and an output value from the detection unit 4. Processing for calculating the distance d between the finger and the operation area is executed.

The image processing apparatus 5 includes an I / O 11, HDD 12, ROM 13, CPU 14, RAM 15, audio IC 16, drawing IC 17, VRAM 18, and GPS unit 19. Each of these hardware is connected by a bus. Further, the CPU 14 and the display unit 2 are connected by an interrupt line.

A display unit 2 , a vehicle speed sensor 20, a direction sensor 21, and a speaker 22 are connected to the I / O 11. Values from the display unit 2 and the like are stored in each storage area provided in the RAM 15 via the I / O 11 (see FIG. 4).

  The HDD 12 stores various programs and various tables in addition to data relating to maps, landmarks, and the like. Various programs include a location program for displaying the current location obtained by the GPS unit 19 together with a map, a navigation program for outputting a route from the current location to the destination, and a deceleration for decelerating the scroll speed v during scroll display. There are programs. Various programs and the like are expanded in each storage area provided in the RAM 15 (see FIG. 4).

  The ROM 13 stores a basic program such as BIOS that is necessary for startup or emergency.

  The RAM 15 has a storage area 15a for storing a scroll speed v, a storage area 15b for storing a distance d, a storage area 15c for storing contact coordinates p, an initial speed, in addition to a storage area for storing various programs and tables. A storage area 15d for storing v0, a storage area 15e for storing the initial distance, and a storage area 15f for storing the change rate a are provided (see FIG. 4).

<Deceleration Process> The CPU 14 develops various programs stored in the HDD 12 in the RAM 15 and executes various processes. In particular, the deceleration process is a process for reducing the scroll speed. This deceleration process is executed in response to an interruption from the display unit 2 when scroll display at the scroll speed v0 is being executed. This interruption occurs when the detection unit 4 outputs an output value that is equal to or greater than a threshold value (the threshold value is a value that allows a finger or the like to approach the operation area). The procedure related to the deceleration process is shown in FIG.

  When an interruption occurs, the scroll speed v at the time of interruption is transferred from a storage area (hereinafter simply referred to as “storage area”) 15a provided in the RAM 15 to the storage area 15d (step S1). That is, the initial speed v0 is defined as the scroll speed v at the time of interruption.

  When the scroll speed v at the time of interruption is transferred, the distance d at the time of interruption is transferred from the storage area 15b to the storage area 15e (step S2). That is, the initial distance d0 is defined as the distance d at the time of interruption.

  When the distance d at the time of interruption is transferred, the initial speed v0 stored in the storage area 15d is divided by the initial distance d0 stored in the storage area 15e, and the quotient of this division is stored in the storage area 15f (step S1). S3). That is, the rate of change a is defined as “initial speed v0 / initial distance d0” (“change rate a = initial speed v0 / initial distance d0”).

  When the rate of change a is defined, it is determined whether or not the contact coordinate p is stored in the storage area 15c (step S4). That is, it is determined whether or not a finger or the like has touched the operation area.

  If it is determined in step S4 that the contact coordinates p are stored in the storage area 15c (Yes in S4), “0” (zero) is stored in the storage area 15a (step S5). That is, the scroll speed v is “0”.

  When “0” is stored in the storage area 15a, a change command for changing the scroll speed v is output to the drawing IC 17 (step S6). When the change command is output, the drawing IC 17 uses “0” stored in the storage area 15a as the scroll speed v. That is, the storage area of the VRAM 18 in which landmarks, maps, and the like are stored is the same before and after redrawing by the drawing IC 17. As a result, landmarks, maps, and the like are not scrolled.

  If it is determined in step S4 that the contact coordinate p is not stored in the storage area 15c (No in S4), the distance d stored in the storage area 15b is multiplied by the change rate a stored in the storage area 15f. The product of the multiplication is stored in the storage area 15a (step S7). That is, the scroll speed v is defined as “distance d * rate of change a” (“v ← d * a”).

  When “d * a” is stored in the storage area 15a, a change command for changing the scroll speed v is output to the drawing IC 17 (step S9). When the change command is output, the drawing IC 17 uses “d * a” stored in the storage area 15a as the scroll speed v. That is, as the distance “d” decreases, the scroll speed v decreases (see FIG. 6).

When the change command is output, the distance d stored in the storage area 15b is updated to a value newly calculated by the display unit 2 (step S9).

When the distance d is updated, the contact coordinate p stored in the storage area 15c is updated to a value newly calculated on the display unit 2 (step S10).

  The procedure from step S7 to step S10 is executed until the contact coordinate p is stored in the storage area 15c. That is, until the finger or the like comes into contact with the operation region, the scroll speed v changes according to the distance d between the finger or the operation region.

  <Effects of the Present Embodiment> According to the present embodiment, when scroll display is executed, when a finger or the like approaches the operation area, the scroll speed related to the scroll display is reduced, and the user scrolls. The displayed landmarks can be selected by a linear operation.

  According to this embodiment, since the scroll speed v is proportional to the distance d between the finger or the like and the operation area, the user can easily recognize the change in the scroll speed v.

  According to the present embodiment, when the contact coordinate p is obtained, the scroll speed v becomes zero, so that even if the change in the distance d is fast, the user's intention to stop the scroll display is met. Can do.

  <Modification 1> In the present embodiment, the scroll speed v and the distance d are in a directly proportional relationship (graph A in FIG. 6), but are not limited to this relationship (graphs B and C in FIG. 6). On the graph, when the distance d is “0”, the scroll speed v may not be “0”. This is because when the contact coordinates p are stored, the scroll speed v is changed to “0”.

  <Modification 2> In this embodiment, the distance d can be calculated. Of course, the present invention can be implemented even when the distance d is not calculated and only whether or not a finger or the like has approached the operation area can be obtained (when an on / off sensor or the like is used). For example, if the relationship between the initial speed v0 and the change rate a is prepared in advance as a table or the like (see FIG. 7), deceleration suitable for the initial speed v0 is possible. Further, since the scroll speed v is changed to “0” when the contact coordinates p are stored, it is possible to respond to the user's intention to stop the scroll display.

  INDUSTRIAL APPLICABILITY The present invention has an effect of allowing a user to select an image that is scroll-displayed with a linear motion, and is useful for a navigation device or the like.

DESCRIPTION OF SYMBOLS 1 Image processing system 2 Display apparatus (display part)
3 Operation device (operation unit)
4 Detector (Detector)
5 Image processing device

Claims (4)

A display unit having a display area;
An operation unit provided in a display area of the display unit;
A detection unit that detects that an object approaches the operation region of the operation unit,
  When scroll display is executed in the display area of the display unit, when the detection unit detects that the object has approached the operation area of the operation unit, the processing unit reduces the scroll speed related to the scroll display. An image processing apparatus comprising: The image processing apparatus according to claim 1, wherein the processing unit varies the deceleration related to the scroll speed according to the initial speed related to the scroll speed. The said processing part calculates | requires the said scroll speed using the said distance, when the distance of the said object and the said operation area | region is calculated | required using the output value in the said detection part. Image processing apparatus. The said processing part makes the said scroll speed zero, if the coordinate in the said operation area is calculated | required using the output value in the said operation part , The Claim 1 thru | or 3 characterized by the above-mentioned. Image processing apparatus.

Images