EP2035779A1

EP2035779A1 - Method for the visualization of geographic data

Info

Publication number: EP2035779A1
Application number: EP07728970A
Authority: EP
Inventors: Andreas Kynast; Jens Faenger
Original assignee: Robert Bosch GmbH
Current assignee: Robert Bosch GmbH
Priority date: 2006-06-19
Filing date: 2007-05-10
Publication date: 2009-03-18
Also published as: WO2007147682A1; US20090306883A1; US8265865B2; DE102006028010A1

Abstract

The invention relates to a method for visualizing geographic data by means of at least two-dimensional objects. In said method, at least one surface of the objects is covered with at least one texture, at least one of the textures being assigned to at least one of the surfaces of the object in accordance with at least one input factor. The invention also relates to a navigation device comprising a display unit and a control unit for carrying out the disclosed method.

Description

Method for visualizing geographic data

The invention relates to a method for visualizing geographic data with at least two-dimensional objects, wherein at least one surface of the objects is occupied by at least one texture. The invention also relates to a navigation device for carrying out the method.

State of the art

EP 1 508 780 A1 proposes a navigation device for guiding a vehicle, in which objects which are adjacent to the route in a display unit are highlighted relative to other objects in the vehicle surroundings. Thus, the important for the navigation of the driver objects in the vicinity of the route can be highlighted to facilitate the orientation of the driver. The highlighting can be done by color and / or contrast changes the objects.

It is customary that the objects adjacent to the route are displayed in three dimensions, with the view of the route being taken from a bird's-eye view. The representation of the objects is standardized, that is, the objects are independent of external factors such. B the season, the weather, the visibility always the same. Disadvantage is that the environment shown in the navigation device can differ significantly from the real environment, which complicates the orientation of the driver. So z. For example, in winter the real environment is white and the trees are bare, while the navigation device display is sunshine and trees with green leaves. Such serious deviations can lead to a significant loss of orientation of the driver.

invention

The object of the invention is therefore to provide an improved method for displaying geographic data with at least two-dimensional objects.

The object of the invention is achieved with the method of the aforementioned type according to the invention by dynamically assigning at least one of the textures to at least one of the surfaces of the objects as a function of at least one input factor.

It is advantageous if the season, the date and the time are included as input factors in the representation of the objects. Thus, depending on the season z. B. in winter, the trees are snow-capped, while in summer the trees are displayed with a green foliage. Depending on the time of day, the display of objects can switch between a day and night view.

Furthermore, it is particularly advantageous if the parameters of the weather and / or the visibility conditions are taken into account when assigning the textures to the individual objects. The term "weather" refers to the state of the atmosphere at a specific time and place. For example, atmospheric conditions such as sunshine, clouds, rain, wind, heat or cold can significantly alter the appearance of the objects.

It is particularly advantageous if the textures for the objects are displayed as a function of a geographical position. The textures can be selected, for example, based on country-specific circumstances. It is also conceivable, however, that the selection of textures is not only country-dependent, but also takes into account regional peculiarities. So z. B. Buildings in different regions of Germany are displayed differently. It is also conceivable to adapt the representation of the objects to the urban and rural areas. So be Objects in a big city certainly represented differently than corresponding objects near a village.

The textures are dynamically assigned to the objects. When changing the influencing factors on which the current assignment of the textures depend, the new textures may become dependent on the changed ones

Assigned to influencing factors. It is particularly advantageous if the

Adaptation of the textures to the new influencing factors takes place only when the

Changes have been for a specified minimum period. This is particularly useful if the changes in the influencing factors are short term and the

Influence the overall situation to an insignificant extent.

It is also particularly advantageous if, in addition to the influencing factors mentioned above, the textures are selected as a function of a color scheme of an interior of a vehicle. This allows the presentation of objects to the

Design of a room to be customized.

Furthermore, the invention also relates to a navigation device with a display unit and a control unit for carrying out the method described above. It is advantageous if the navigation device is set up to detect the weather and / or the visibility conditions. This can be z. B. happen that the navigation device is connected to sensors located in a vehicle. It is also advantageous if the control unit for selecting the textures is set up as a function of the graphical user interface set on the navigation device. This makes it possible to adapt the textures in such a way that a harmonious overall picture is created.

The invention will be explained in more detail with reference to an embodiment with the accompanying drawings.

Show it:

Figure 1 Schematic representation of a navigation device with a display unit and a control unit. - A -

Figure 2a Representation of fields depending on the season summer;

FIG. 2b shows fields as a function of the season autumn;

FIG. 3a depiction of objects as buildings in England;

Figure 3b representation of objects as buildings in Germany.

FIG. 1 shows a block diagram of a navigation device 1 with a display unit

2 recognize. The navigation device 1 has a control unit 3 for route guidance in a manner known per se and control of the display unit 2. Two or three-dimensional objects shown on the display unit 2 are processed by the control unit 3 in such a way that surfaces of the objects are supplied dynamically as a function of the control unit 3 Input factors E ₁ - (with i = O ... N and N = number of considered

Input factors) with textures. The design of the textures depends on the at least one input factor E ₁ -.

In FIGS. 2 a and 2 b respectively, a representation of fields I Ia or I Ib can be seen, as shown, for example, in FIG. B. be displayed in a navigation device. In FIG. 2 a, the textures for displaying the fields I 1 a were selected as a function of the summer season. Since the fields are green in the summer, due to the growing sowing, this must be considered in the presentation in a navigation device. Therefore, the textures for the display of the fields I Ia were chosen so that they have as much as possible a resemblance to real fields in summer.

In contrast, in Figure 3b, although the same section of the landscape can be seen, however, this representation is chosen depending on the season of autumn. Since the fields are usually plowed in the fall, the representation of such a field in a navigation or other device must be adjusted according to the season.

This allows the user to display a realistic representation of the environment in order to simplify orientation. Furthermore, it would be z. B. conceivable that the fields are covered with snow in winter. However, since snow is not always in winter, it is z. B. advantageous if snow-covered fields are displayed in winter only when the corresponding sensors detect a prolonged snowfall. Furthermore, it is also conceivable, the representation of the fields depending on the current position of the

Vehicle display. So z. For example, fields in the summer in the Netherlands are shown as large flower or tulip fields, while in Germany they are represented as cereal or rape fields. Also representations depending on different regions within a country are conceivable. So z. For example, fields in the south of France have a characteristic appearance characterized by wine, while in the

North of France a very different picture coins the fields.

It is particularly advantageous, for example, if it can be concluded by means of the current position on the height of the navigation device, for example, to represent the vegetation as a function of altitude. So z. For example, trees at high altitudes are rather small, while lush vegetation grows in the plains. This can be considered with appropriate textures when assigning to the objects accordingly.

In Figure 3a and 3b, respectively, a section of a district can be seen, the textures of the objects were selected depending on a country. It can therefore be seen in FIG. 3 a that the textures for the house facades 21 a have been selected to be white in color. As a result, the cityscape is characterized by uniform house facades when displayed in a navigation device. In Figure 3b, the same city section can be seen, however, colored textures have been used here for the house facades. The user thus receives different representations of the inner cities in different countries. It would also be conceivable, however, for the buildings to be displayed on a regional basis. So z. For example, houses with a thatched roof are shown in one region, while half-timbered houses are more likely to be found in other regions, resulting in a much more accurate picture of the environment.

Claims

claims

A method of visualizing geographic data having at least two-dimensional objects, wherein at least one surface of the objects is populated with at least one texture, characterized by dynamically assigning at least one of the textures to at least one of the surfaces of the objects in response to at least one input factor.

2. The method of claim 1, wherein the objects are three-dimensional.

3. The method according to any one of the preceding claims, wherein at least one of the input factors represents the season, the date and / or the time.

4. The method according to any one of the preceding claims, wherein at least one of the input factors represent the parameters of the weather and / or visibility.

5. The method of claim 1, wherein at least one of the input factors represents a geographical position.

6. A method according to any one of the preceding claims, wherein the assignment of changed textures to the surfaces of the objects occurs upon a change of at least one input factor.

7. The method of claim 6, wherein assigning at least one changed texture occurs after a time delay, wherein during the duration of

Delay the change of at least one influencing factor was present.

8. The method according to any one of the preceding claims, wherein at least one of the input factors represents the color design and / or equipment of an interior of a vehicle.

9. Navigation device with a display unit and a control unit for

Implementation of the method according to one of the preceding claims.

10. Navigation device according to claim 9, characterized in that the navigation device is set up for detecting and / or receiving the status of the weather and / or the visibility conditions.

11. Navigation device according to one of claims 10 or 11, characterized in that the control unit is adapted to adapt at least one of the textures in dependence on the graphical user interface of the display unit.