JP3604493B2 - Map display device - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a map display device capable of displaying a bird's-eye map obtained by converting a planar map into a display format based on a bird's-eye view method.
[0002]
[Prior art]
In this specification, a vehicle road map display device will be described as an example. 2. Description of the Related Art When a road map is displayed on a display device, a vehicle map display device that displays a road map by a so-called bird's-eye view method that displays a road map around a current location of a vehicle at a greater magnification than a distant place is known ( For example, see JP-A-2-244188). The device disclosed in the above publication places a viewpoint behind the current position of the vehicle, and displays a state in which the vehicle looks down in the traveling direction from the viewpoint on a screen of a display device. When such a map display based on the bird's-eye view method (hereinafter, a map displayed by the bird's-eye view method is referred to as a bird's-eye map and distinguished from a plan map displayed as a plan view), map information around the current location is displayed in an enlarged manner. Since it is possible to display a wide area from the current position to a distant place, it is easy to visually grasp the connection status of the road map. In addition, it is possible to display a realistic road map as if the driver were looking down at the road map.
[0003]
[Problems to be solved by the invention]
However, when the road map information to be displayed on the screen is originally small, for example, when displaying an area other than an urban area, whether a bird's-eye view map is displayed or a conventional planar map is displayed. It is difficult to distinguish the bird's-eye map, and even if the bird's-eye map is displayed, there is a possibility that the sense of reality, which is an original feature of the bird's-eye map, cannot be obtained. When a road map is displayed in a bird's eye view, the map scale changes continuously from the lower side to the upper side of the screen, so that it is difficult to grasp the perspective and distance of the road map on the screen.
[0004]
SUMMARY OF THE INVENTION An object of the present invention is to provide a map display device in which a bird's-eye map gives a further sense of perspective and distance.
[0005]
[Means for Solving the Problems]
The map display device according to the invention, a bird's eye view map display means for displaying a bird's eye view map obtained by converting the planimetric map on the display format by the bird's eye view method, the plurality of grid lines to emphasize the perspective of bird's eye view map, adjacent each grid line Grid line display means for displaying the bird's-eye map superimposed on the bird's-eye map so that the distances on the road map are substantially equal to each other, and a plurality of grid lines formed by dividing the bird's-eye map by a plurality of grid lines displayed by the grid line display means. Trapezoidal area mark display means for displaying a trapezoidal mark for representing the area as a representative, and the distance on the road map in each side of each area represented by the mark displayed by the trapezoidal area mark display means. And a distance display means for displaying one numerical value .
In order to create a bird's-eye view map, a map storage means for storing data related to a planar map, and a predetermined range of map data are read out from the map storage means so as to display a map by the bird's-eye view method and converted into a display format by the bird's-eye view method A bird's-eye view data conversion means may be further provided.
The bird's-eye view map data conversion means converts the plane map into bird's-eye view map data, assuming that the viewpoint is placed above the current location on the plane map and the plane map is looked down from this viewpoint at a predetermined look-down angle and spread angle. be able to.
A plurality of grid lines, a plurality of horizontal grid lines whose intervals are narrowed from the lower side to the upper side of the display screen, and lines that respectively point from the lower left and right sides of the screen to the center of the upper side of the screen, and And a plurality of sloping grid lines whose intervals are narrowed.
Even when the display area changing means for making the display area of the displayed map variable is provided, the grid lines on the screen are fixedly displayed regardless of the display area of the displayed map, and the distance between the grid lines displayed on the screen is changed. Can be changed according to the display area of the bird's-eye map.
When the display area changing means changes the display area by changing the height of the viewpoint, it is desirable to further display the height of the viewpoint on the bird's-eye map.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is a block diagram of an embodiment in which a map display device according to the present invention is applied to a vehicle navigation device. In FIG. 1, reference numeral 1 denotes a current position detecting device for detecting a current position of a vehicle, for example, a direction sensor for detecting a traveling direction of the vehicle, a vehicle speed sensor for detecting a vehicle speed, and a GPS signal from a GPS (Global Positioning System) satellite. It consists of a GPS sensor and the like. Reference numeral 2 denotes a map storage memory for storing data relating to a planar road map, which is composed of, for example, a CD-ROM and a reading device therefor. The road map data stored in the map storage memory 2 mainly includes road data, name data, background data, and the like on a planar map.
[0007]
Reference numeral 3 denotes a control circuit for controlling the entire apparatus, which comprises a microprocessor and its peripheral circuits. Reference numeral 4 denotes an input device having various switches for inputting a destination of the vehicle and the like, and is arranged around a display screen in this example. Note that, as a remote control method, a command may be transmitted to the control circuit wirelessly or wired. Here, only the detailed / wide area switches 4a and 4b related to the present invention are shown. The detail / wide area switches 4a and 4b are switches for displaying the display map in detail or for displaying a wide area. In this example, switching from the most detailed to the widest area is possible in five steps, and in the case of a bird's-eye map display, the height of the viewpoint described later is set to 350 m, 700 m, 1400 m, 2800 m, and 5600 m for each step. .
[0008]
Reference numeral 5 denotes a plane map data memory for storing plane road map drawing data for displaying the plane road map viewed from directly above, and is created based on the plane road map data read from the map storage memory 2. A bird's-eye map data memory 6 stores bird's-eye map drawing data for displaying a planar road map in a bird's-eye view method, and is created based on the planar road map data read from the map storage memory 2. Reference numeral 7 denotes an image memory for storing image data to be displayed on a display device 8, which will be described later. This image data is created from plane map drawing data or bird's-eye map drawing data. The image data stored in the image memory 7 is read out as appropriate and displayed on the display device 8. Reference numeral 9 denotes a grid line information storage memory for storing information on grid lines to be displayed on the display device 8, and stores information such as display position coordinates of the grid lines on the screen and types of display lines of the grid lines.
[0009]
FIG. 2 is a diagram showing an example of grid lines that are simultaneously displayed when a road map is displayed in the bird's eye view method. The grid lines include horizontal grid lines GH1 to GH8 and oblique grid lines GV11 to GV16. Each grid line is displayed such that the distance on the road map between adjacent grid lines is approximately equal. When the road map is displayed in the bird's eye view, the scale of the map changes continuously from the lower part to the upper part of the screen, so that the interval between the horizontal grid lines GH gradually decreases from the lower part to the upper part of the screen as shown in the figure. Similarly, the intervals between the oblique grid lines GV from the center of the screen to the left and right become narrower. Information for displaying the grid lines shown in FIG. 2 is stored in the grid line information storage memory 9 described above in advance.
[0010]
The display of the grid line is a fixed grid line so as not to change regardless of the size of the map display area. Therefore, the distance on the map of each side surrounded by the four grid lines has a different value depending on the size of the map display area. In the present embodiment, by drawing the sky in the upper area of the screen, a sense of depth and a sense of distance of the map is created, and by displaying the distance on the map between the grid lines on the screen at all times, the occupant can view the map display area. The size is easy to grasp intuitively. The triangular mark TM (referred to as the vehicle position mark) in the screen indicates the current position of the vehicle, and the screen is updated when the vehicle travels a predetermined distance during traveling. The user moves on the screen from the position 2 according to the traveling distance.
[0011]
FIG. 3 is a flowchart showing the main processing of the control circuit 3, and the operation of the present embodiment will be described below based on this flowchart. The control circuit 3 starts the processing in FIG. 3 when the key is operated to the ignition on position.
In step S1 of FIG. 3, a recommended route and a destination are set. The destination is set by the operator via the input device 4, and the recommended route is automatically set by calculation using, for example, the well-known Dijkstra method. In this case, the position detected by the current value detection device 1 can be used as the current value. Alternatively, recommended route candidates may be stored in advance in a ROM or the like, and any one of them may be selected as the recommended route.
[0012]
In step S2, a display screen mode is set. The display screen mode set here includes a mode for displaying a bird's-eye view map, a mode for displaying a plane map, and a mode for simultaneously displaying a bird's-eye view and a plane map on the same screen. This is performed by the operator via the input device 4. When the bird's-eye map and the plane map are displayed at the same time, the display area of one of the road maps is displayed in a large size, and the other is window-displayed in a part thereof. Hereinafter, the one having a larger display area is called a base screen, and the one displaying a window is called a window screen.
[0013]
In step S3, a display environment is set. The display environment set here includes, for example, the display color of the screen and the selection between the night mode and the day mode. The selection of these display environments is performed by the operator via the input device 4. In step S4, the current position of the vehicle is detected based on a signal from the current position detection device 1. In step S5, a map is displayed by performing map display processing shown in detail in FIGS. Details of the map display processing will be described later.
[0014]
In step S6, the current position is detected as in step S4. In step S7, it is determined whether or not to update the road map on the screen, that is, whether or not to rewrite the road map. Here, for example, based on (1) the detected current position, if the vehicle has traveled a predetermined distance or more since the previous map update, (2) if the operator has operated the detail switch 4a and the enlargement switch 4b, Or (3) When the operator instructs scrolling via the input device 4, it is determined that the road map displayed on the screen is to be updated.
[0015]
If the determination in step S7 is affirmative, the process returns to step S5, and if the determination is negative, the process proceeds to step S8. In step S8, it is determined whether to continue the main process of FIG. For example, when a power switch (not shown) is turned off or when a switch for stopping the process is operated, the determination in step S8 is denied, and the main process in FIG. 3 ends.
[0016]
If the determination in step S8 is affirmative, the process proceeds to step S9, where the display of the attached information is updated, and then the process returns to step S4. Here, the attached information includes, for example, a north azimuth mark and a vehicle mark.
[0017]
4 to 7 are flowcharts showing the details of the map display processing in step S5 in FIG. In step S101 in FIG. 4, it is determined whether the road map displayed on the base screen is a bird's-eye map. Here, the determination is made based on the display screen mode set in step S2 of FIG. If the determination in step S101 is affirmative, the process proceeds to step S102, in which a bird's-eye map display process shown in detail in FIG. 5 is performed, and a bird's-eye map is displayed in a base screen display area on the screen.
[0018]
On the other hand, if the determination in step S101 is negative, the process proceeds to step S103, where a planar map display process shown in detail in FIG. 7 is performed, and a planar map is displayed in the base screen display area on the screen. When the processing in step S102 or S103 ends, the process advances to step S104 to determine whether to display a window screen. Here, the determination is made based on the display screen mode set in step S2 of FIG.
[0019]
If the determination in step S104 is affirmative, the process proceeds to step S105, and it is determined whether or not the road map displayed on the window screen is a bird's-eye map. This determination is also made based on the display screen mode set in step S2 of FIG. If the determination in step S105 is affirmative, the process proceeds to step S106, in which a bird's-eye map display process shown in detail in FIGS. 5 and 6 is performed, and a bird's-eye map is displayed in the window screen. On the other hand, if the determination in step S105 is negative, the process proceeds to step S107, in which a planar map display process shown in detail in FIG. 7 is performed to display a planar map in the window screen.
[0020]
When the processing in step S106 or S107 is completed, or when the determination in step S104 is denied, the process proceeds to step S108, where the attached information such as the vehicle position mark is displayed on both the base screen and the window screen, and the process returns. .
[0021]
FIGS. 5 and 6 are flowcharts showing details of the bird's-eye view map display process in step S102 in FIG. Step S200 in FIG. 5 is a process for changing the size of the display map area by operating the detail switch 4a or the wide area switch 4b, and the details are shown in FIG.
[0022]
In FIG. 6, when the operation of the detail switch 4a or the wide area switch 4b is determined in step S2001, the process proceeds to step S2002. In step S2002, it is determined whether the current detail / wide area selection state is the most detailed or the widest area. If the result is affirmed, the process ends without doing anything. If the result is negative, the process proceeds to step S2003. In step S2003, the distance between grid lines is calculated based on the state of the detail switch 4a and the wide area switch 4b. The calculation of the distance between grid lines can be performed as follows.
[0023]
When displaying the map of the display area (reduced scale in the case of a planar map) selected by the detail switch 4a or the wide area switch 4b by the bird's-eye view method, the viewpoint height set in five steps is changed as described above to change the bird's-eye view image data. Create Therefore, the viewpoint height corresponding to the selected display area is obtained, and the distance between grid lines stored in the table in advance in accordance with the viewpoint height is read based on the obtained viewpoint height. For viewpoint heights of 350 m, 700 m, 1400 m, 2800 m, and 5600 m, the distances between grid lines are 500 m, 1 km, 2 km, 4 km, and 8 km, respectively. In step S2004, as shown in FIG. 12, the selected detail / wide area selection state is displayed on the bird's-eye map screen displayed in the current detail / enlargement selection state. In step S2005, map data having a viewpoint height corresponding to the selected detail / wide area selection state is selected, and the process ends. That is, the process proceeds to step S201 in FIG.
[0024]
FIG. 12 shows an example in which the detailed / wide area selection state is displayed on the bird's-eye map screen in a superimposed manner. This example shows a state where the one-step wide area is selected when the bird's-eye map is displayed in the most detailed state, and is lit as indicated by reference numeral 41 in the first area D1 to show the current detail / wide area selection state. Is displayed. The viewpoint height is displayed in the second area D2, the grid line distance “1 km” in the detailed / wide area selection state of reference numeral 41 is displayed in the third area D3, and the current area is displayed in the fourth area D4. The grid line distance "500 m" in the most detailed state is displayed.
[0025]
In step S201, a display direction angle when a map is displayed by the bird's eye view method is calculated. FIG. 8 is a diagram illustrating a method of calculating the display direction angle α. The illustrated XY axes indicate the road map plane, the origin O indicates the starting point of the vehicle, the coordinates G (X0, Y0) indicate the current position of the vehicle, and the coordinates P1 (X1, Y1) indicate the destination.
As shown in the figure, the display direction angle α is an angle between a line (dotted line in the figure) connecting the current position G and the destination P1 and the X axis, and is expressed by equation (1).
(Equation 1)
tan α = {(Y1-Y0) / (X1-X0)} (1)
In the above-described step S201, the display direction angle α is obtained based on the equation (1).
In FIG. 8, θ indicates an angle that is の of the spread angle described later, and areas surrounded by A, B, C, and D indicate areas on a map that is displayed in a bird's eye view.
[0026]
In step S202, road map data around the current location is read from the map storage memory 2 based on the current location detected in steps S4 and S6 of FIG. 3 and the display direction angle α calculated in step S201. For example, it reads road map data of several tens km square including the current location. The read range increases as the viewpoint height increases.
[0027]
In step S203, data used when displaying a bird's-eye map is selected from the road map data read in step S202, and the selected data is stored in the bird's-eye map data memory 6. Here, in order to reduce the data amount of the road map information displayed on the display device 8, only data whose data type satisfies a predetermined condition is extracted and stored in the bird's-eye view map data memory 6. In step S204, the road map data selected in step S203 is converted to bird's-eye view map data.
[0028]
FIG. 9 is a diagram for explaining conversion into bird's-eye view map data, and shows an example in which a road map is an XY plane, a viewpoint M is placed on a Z-axis orthogonal to the XY plane, and a look-down angle from the viewpoint M is φ. . The illustrated rectangle abcd indicates the display range of the display device 6 so as to be enlarged in FIG. 10, and the trapezoid ABCD of FIG. 9 indicates the road map range displayed on the display device 8.
[0029]
In order to convert the road map data to the bird's-eye view map data, first, the height Z of the viewpoint M and the angle of looking down from the viewpoint M so that all of the road map data in the illustrated trapezoidal area ABCD can be displayed on the display device 8. After determining φ and the spread angle 2θ from the viewpoint, bird's-eye view map data projected on the rectangular area abcd in FIG. 10 is created using these parameters. At this time, the overlooking angle φ is set so that the vicinity of the center line connecting the upper and lower midpoints of the display screen of the display device 8 is approximately 1.2 km forward.
[0030]
Returning to FIG. 5, in step S205, the bird's-eye view map data converted in step S204 is converted into final map image data to be displayed on the display device 8. In step S206, the grid line information for the bird's-eye view map shown in FIG. 3 is read from the grid line information storage memory 9, and the grid line distance calculated in step S2003 is combined with the map image data together with the mark. 7 and return.
[0031]
FIG. 7 is a flowchart showing details of the planar map display processing in step S103 of FIG. In step S301 of FIG. 7, a road map around the current location of the vehicle is read from the map storage memory 2. In step S302, data used for displaying a planar map is selected from the road map data read in step S301, the selected data is stored as planar map data in the planar map data memory 5, and the process returns. . Here, as in step S203 of FIG. 5, data with a high priority is selected. In step S303, the planar map data stored in the planar map data memory 5 is converted into map image data, stored in the image memory 7, and the routine returns.
[0032]
A case where the screen displaying the bird's-eye view map in the most detailed state is shifted to the one-step wide area side will be described with reference to FIGS.
FIG. 11 shows a screen display in the most detailed state (the state where the viewpoint height is the lowest). "500 m" which is the distance between the grid lines in the most detailed state is displayed together with the mark GM in the area D5. In this state, when the wide area switch 4b is operated once to shift to the one-step wide area side (the viewpoint height is raised by one step), first, without changing the map itself, as shown in FIG. Displays status information at the bottom of the screen. The area D1 shows a state shifted to the one-step wide area side by reference numeral 41, the area D2 has a viewpoint height of “700 m”, and the area D3 has a distance between grid lines corresponding to the viewpoint height of “700 m”. A certain “1 km” is displayed together with the mark, and “500 m” which is a distance between grid lines corresponding to the viewpoint height before the detail / enlargement state is changed is displayed together with the mark in the area D4 (step S2004). Thereafter, bird's-eye view map image data is created based on the selected detailed / wide area state, that is, the viewpoint height, stored in the memory 7 and the screen is updated. The distance between grid lines “1 km” corresponding to the changed viewpoint height is displayed in D5.
[0033]
In the embodiment described above, a plurality of grid lines as shown in FIG. 2 are superimposed on a road map displayed by the bird's eye view method, and a numerical value corresponding to the distance between the grid lines is displayed. I made it. Therefore, when a map is displayed by the bird's-eye view method, a map with a sense of depth or perspective can be displayed, and the distance between grid lines is displayed, so that the actual distance on the bird's-eye map can be easily grasped. In addition, since the display position of the grid line is always fixed, the grid line is rewritten when scrolling the road map on the screen or when updating the map by changing the display area by changing the viewpoint height. There is no need to display grid lines without affecting the screen rewriting speed.
[0034]
Further, when the detail / wide area is selected, that is, when the viewpoint height is changed, the viewpoint height after the change and the distance between grid lines before and after the change are displayed before updating the map screen as shown in FIG. Therefore, the operator can easily grasp the state before and after the screen change.
[0035]
In each of the above embodiments, a plurality of display line types for each grid line may be provided, and the grid lines may be displayed using a plurality of different display line types. For example, a thin grid line may be displayed in units of several hundred meters, and a thick grid line may be displayed in units of several kilometers. Further, when displaying the bird's-eye view, if the grid lines on the lower side of the screen are made thicker and the grid lines on the upper side are made thinner, a more realistic road map can be displayed. Further, a grid line may be displayed according to the distance from the current location, for example, based on the current location of the vehicle. By doing so, the distance from the current position can be more easily grasped.
[0036]
The map display device according to the present invention is not limited to vehicles. The present invention is not limited to a road map, and is effective when various maps such as a mountain map, a river map, and a marine chart are displayed in a bird's eye view. Furthermore, the present invention is not limited to the grid lines of the embodiment as long as it emphasizes perspective and depth. Furthermore, the plane map data is converted into the bird's-eye map data and the bird's-eye map is displayed. However, the bird's-eye map data may be stored in a memory such as a CD-ROM in advance and the conversion processing may be omitted. In the above description, the map display area is made detailed or wide by changing the viewpoint height. However, the display area may be increased or decreased by other methods.
[0037]
In the embodiment configured as described above, the map storage memory 2 is used as the map storage means, the control circuit 3 is used as the bird's-eye map data conversion means, particularly step S204 in FIG. 5, and the step S200 shown in FIG. Respectively.
[0038]
【The invention's effect】
As described in detail above, according to the present invention, the grid line that emphasizes the perspective of the map based on the bird's-eye view is displayed so as to be superimposed on the bird's-eye view, so that the map based on the bird's-eye view is more realistic. It can be displayed. By displaying the distance between the grid lines, the actual distance can be more easily grasped on the bird's-eye view map.
According to the invention described in claim 4, the display interval of the grid lines is gradually narrowed from the center of the display screen to the left side and the right side, and the display interval of the grid lines is gradually increased from the lower side to the upper side of the display screen. Because it is narrower, a more realistic bird's-eye map can be displayed.
According to the fifth aspect of the present invention, when the map display area can be changed, the grid lines are fixedly displayed regardless of the map range displayed on the screen to improve the image processing speed. However, since the actual distance between the fixed grid lines is numerically displayed, there is no possibility that the distance becomes difficult to grasp.
According to the sixth aspect of the present invention, when the display area is changed by the viewpoint height, the display is made so as to match the viewpoint height.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an embodiment of a map display device according to the present invention.
FIG. 2 is a view showing a display example of grid lines in FIG. 1;
FIG. 3 is a flowchart showing main processing.
FIG. 4 is a flowchart showing a map display process.
FIG. 5 is a flowchart showing a bird's-eye map display process.
FIG. 6 is a flowchart showing a detail / wide area selection process. FIG. 7 is a flowchart showing a planar map display process.
FIG. 8 is a diagram illustrating a method of calculating a display direction angle of a bird's-eye map.
FIG. 9 is a view for explaining conversion to bird's-eye view map data.
FIG. 10 is an enlarged view of a rectangular area abcd shown in FIG. 9;
FIG. 11 is a diagram showing a screen display example when a bird's-eye map is displayed.
FIG. 12 is a diagram showing a screen display example when a bird's-eye map is displayed.
FIG. 13 is a diagram showing a screen display example when a bird's-eye map is displayed.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Current location detection device 2 Map storage memory 3 Control circuit 4 Input device 4a Detailed switch 4b Wide area switch 5 Plane map data memory 6 Bird's-eye view map data memory 7 Image memory 8 Display device 9 Grid line information storage memory

Claims (7)

Bird's-eye map display means for displaying a bird's- eye map obtained by converting the planar map into a display format based on the bird's-eye view method,
A plurality of grid lines for emphasizing the perspective of the bird's-eye map, grid line display means for displaying the bird's-eye map so as to be superimposed on the bird's-eye map so that distances between adjacent grid lines on the road map are substantially equal ;
Trapezoidal area mark display means for displaying a trapezoidal mark for representing a plurality of areas formed by dividing the bird's-eye view map by a plurality of grid lines displayed by the grid line display means,
A map display device comprising: distance display means for displaying a distance on a road map in each side of each area represented by the mark displayed by the trapezoidal area mark display means as one numerical value . The map display device according to claim 1,
Map storage means for storing data relating to the planar map,
A map display device , further comprising: bird's-eye map data conversion means for reading map data in a predetermined range from the map storage means so as to display a map by the bird's-eye view method and converting the map data into a display format by the bird's-eye view method. The map display device according to claim 2,
The bird's-eye map data converting means places a viewpoint above the current location on the plane map and converts the viewpoint into bird's-eye map data when the plane map is looked down at a predetermined look-down angle and a spread angle from the viewpoint. Map display device. The map display device according to any one of claims 1 to 3,
The plurality of grid lines are a plurality of horizontal grid lines whose intervals are narrowed from the lower side to the upper side of the display screen, and lines respectively pointing from the lower left and right sides of the screen to the center of the upper side of the screen, and from the center of the screen. A map display device comprising a plurality of sloping grid lines, each of which has a narrow interval between left and right. The map display device according to any one of claims 1 to 4,
A display area changing means for changing a display area of the displayed map,
The grid lines on the screen are fixedly displayed regardless of the display area of the displayed map,
A map display device, wherein a distance between the grid lines displayed on the screen is changed in accordance with a display area of the bird's-eye map. Bird's-eye map display means for displaying a bird's-eye map obtained by converting the planar map into a display format based on the bird's-eye view method;
Grid line display means for displaying a plurality of grid lines that emphasize the perspective of the bird's-eye map over the bird's-eye map,
Distance display means for displaying a distance between the plurality of grid lines,
Display area changing means for changing the display area of the bird's-eye map displayed by the bird's-eye map display means,
The grid line display means fixedly displays the grid line regardless of the display area of the bird's-eye map,
The map display device, wherein the distance display means changes and displays a distance between the grid lines according to a display area of the bird's-eye map. The map display device according to claim 5 or 6 ,
The display area change unit changes the display area by changing the viewpoint height,
A map display device further comprising displaying the height of the viewpoint on the bird's-eye map.

Images