TW201339542A - Navigation system installed in vehicle, has virtual camera whose perspective projection is aligned in perspective view of viewer of display - Google Patents

Abstract

The navigation system (1) has a display (10) such as dual view picture screen, by which a map display (13) is three-dimensionally reproducible. The map display on the perspective projection (11) of a virtual camera (12) is based on the map display represented as a virtual receptacle. The perspective projection of the virtual camera is aligned in the perspective view of viewer of the display. Independent claims are included for the following: (1) method for operating navigation system; and (2) computer program product for operating navigation system.

Description

Navigation system with better map display

The present invention relates to a navigation system and a method of operating a navigation system having a display with which map rendering (Kartendrstellung, map illustration) can be reproduced in a three-dimensional manner.

The navigation system can include displays that reproduce the map in a three-dimensional manner and are known as dual-view displays, where the view is based on a virtual camera located in the center of the display. If the viewer is obliquely aiming at the display, the viewer's perspective (Perspektive) [which deviates from the central projection perspective] is compensated by the hardware in the display, but this creates considerable cost in constructing such a display.

US 20021009233A1 discloses a system for providing a perspective-corrected view of a selected portion of a received optical image, the system comprising an image detection device, a receiving image storage device, an input device, an image conversion processing device, An output image storage device and an output device (which is coupled to the output image storage device), wherein the image conversion processing device includes a conversion parameter calculation device to calculate a conversion parameter of the selected image portion, and the digital signal is supported and stored The calculated conversion parameters, 俾 produce a corrected output signal. This achieves the advantage that the optically distorted image can be converted into a fluoroscopically correct image, but only the relevant regions can be decoupled from the image, so that such a system cannot be used here. Navigation System.

It is therefore an object of the present invention to provide a navigation system that provides better map rendering in the display of the navigation system so that the viewer can better view the three-dimensional map presentation at the tilt angle of the display.

This object is achieved by a navigation system of the citation of claim 1 of the patent application, in conjunction with its characteristic part, and advantageous further features of the invention are found in the dependent claims.

A feature of the invention is that the projection perspective of the virtual camera is aligned on a viewing perspective of a viewer of the display.

If the projected perspective of the virtual camera matches the actual viewing perspective of the viewer (eg, a driver or car of a car), the viewer correctly sees the perspective shown in the display of the navigation system The rendering of the map, the target of the map is no longer distorted or tilted, so the operability, usability and comfort of a navigation system in the car are greatly improved.

In a particularly advantageous embodiment, the display is designed in the form of a dual viewing screen that can be viewed from more than one direction (e.g., from two directions). Thus, for example, the driving of the car looks at the display from a first viewing image, and the same vehicle can view the display of the navigation system from its second viewing perspective, and the map is not presented to the driver and the same vehicle. Will be distorted.

In particular, a first projection perspective can be aligned on a viewing perspective of a first viewer of the display; a second projection perspective is aligned on a viewing perspective of a second viewer of the display. Of course, in the prior art, a dual-view screen can even present two independent image content, so, for example, a car can be seen and seen in the display. Different images, but the basic idea originally based on the scope of the present invention is presented in two viewing perspectives, whereas the map rendering is correct for perspective stereoscopicity for the first and second viewing perspectives. .

An advantageous further feature of the navigation system of the present invention is that at least one sensor is provided for detecting the position of the at least one viewer's head, and wherein the sensor is formed, in particular, by a camera, using the camera The position of the viewer's head can be taken. For example, the image recognition program is a conventional one, and can be used to identify the spatial arrangement of objects to which a camera is photographed. For example, the camera can be placed in the range of driving the car to detect the position of the head of the driving. Thus information about the position of the head can be communicated to the navigation system to correspondingly match the projected perspective of the head position relative to the display of the navigation system.

Preferably, a control means is provided, the control means being coupled to the at least one sensor, wherein the control means is arranged to digitally calculate the orientation of the at least one projection perspective in accordance with at least one position of the head.

According to another feature of the invention, the orientation of the projection perspective of the virtual camera can be configured via a menu (Menü) in the display, and the viewer can decide by inputting the navigation system or in the control means; How the projection perspective is aligned in the display of the navigation system. According to another advantageous embodiment, the control means can be connected to at least one mirror position detecting device of a car and/or a sitting position detecting device, so that the projection perspective can be viewed according to the mirror position or the sitting position alignment direction. The position of the person's head (the position and/or position of the mirror in the vehicle) can thus be evaluated by means of a control means, and the control means can be obtained via the mirror position detecting means and/or the information obtained via the sitting position. The information about the position of the head detected by the sensor overlaps, for example, in other image modes.

In addition, the object of the present invention is to solve a method for operating a navigation system by using a display, which has a display for reproducing a map in a three-dimensional manner, wherein the map is presented according to a virtual photography. In perspective view, the map is rendered in a virtual photographic manner using the camera, wherein the projected perspective of the virtual camera is aligned on a viewing perspective of at least one viewer of the display. Here, the position of the head of the at least one viewer can be detected using a sensor, in particular using a camera.

In particular, the position of the at least one viewer's head can be detected using a sensor, in particular using a camera. For example, the position of the driver and the head of the same person is detected, and the method of the present invention can also utilize the mirror position detecting device and/or the sitting position detecting device in the vehicle to take the driver and the same person's head. Location checkout or evaluation. For this purpose, it can be pre-programmed (Vorprogrammierung, pre-programming), so the position of the head position is assumed in a certain sitting position.

With further features of this method, the position of the viewer's head is continuously detected, so that the projected perspective is guided along with the actual position of the viewer's head. Thus the viewer can move his head and, when viewed by his actual viewing perspective, a correspondingly corrected projection perspective is often seen in the display of the navigation system. As such, the quality of the map presented is further improved.

Furthermore, the present invention relates to the implementation of the patent application scope when the computer program is implemented in a computer or a related control device, particularly in a device having a navigation system according to any one of claims 1 to 6. The steps of the method of any of items 7 to 10.

Other improvements of the present invention will be described in detail below with reference to the preferred embodiments of the present invention.

(1)‧‧‧Navigation system

(10)‧‧‧ display

(11)‧‧‧Projection perspective

(12)‧‧‧Virtual Camera

(13) ‧ ‧ map presentation

(14)‧‧‧View projection

(14) ‧‧‧View perspective

(15)‧‧‧ Viewers

(17)‧‧‧ camera

(17)‧‧‧ Sensors

(18) ‧‧‧Control means

(19) ‧ ‧ [viewer (15)] head

(20)‧‧‧Mirror position detection device

(21)‧‧‧Sitting position detection device

(22)‧‧‧Mirror

(23) ‧‧‧Sitting

1 is a schematic diagram of a navigation system, having a display, FIG. 2 is an example of a map presentation, having a projection perspective view, FIG. 3 is a schematic diagram of a navigation system having the features of the present invention, and FIG. 4 is a display and a display A schematic diagram of the arrangement of the first and second viewers, the two persons simultaneously viewing the display from each of the viewing perspectives.

Figures 1 and 2 show a navigation system (1) having a display (10). For example, the display (10) is placed in a projection perspective (1) in a virtual camera (12) and is shown schematically in the form of a navigation system (1) component. In the display (10), the image of the map presentation (13) that the viewer can see corresponds to the projected perspective (11), whereby the camera (12) captures the image by projecting the perspective. If the viewer watches the display (10). The map presentation (13) is presented in a perspective view, as is the case with the virtual camera (12) from the projection perspective (1). Here, the projection perspective (11) is only tilted by the illustrated viewing angle α, wherein the virtual camera (12) is placed in the center of the three-dimensional space map presentation (13) (which is shown in perspective) .

If, for example, the display (10) of the navigation system (1) is located in the center of an instrument panel (Instrumententafel), the driver of the car and the same car must view the display (10) at an oblique angle. Since the three-dimensional space coordinates of the geometric object must be projected onto the screen of the second-degree space in the navigation system, as shown in FIG. 2, the map rendering (13) appears to be correspondingly distorted, and the distortion occurs because: The projection perspective (11) of the camera (12) does not coincide with the actual viewing projection of the viewer (eg, the driver of the car or the same vehicle).

Figure 3 shows another navigation system (1) with a display (10) by which a map presentation (13) can be reproduced in a three-dimensional manner. The map rendering of the third dimension (13) is shown in a schematic side view, while the viewer [he sees the map (14) from which he views the map (13)] correspondingly sees the map presentation (13). The virtual camera (12) according to Fig. 1 (representable representation of the projection perspective according to Fig. 2) corresponds to the position of the viewer (15) head (19), thus the projection perspective of the camera (12) (11) Aligned on the viewing perspective (14) of the viewer (15) of the display (10). Therefore, it is no longer only that the angle of view of FIG. 1 is used to change the adjustable position of the map presentation (13), and the lateral deflection of the surface of the display (10) by the head (19) can be corrected by: projecting a perspective view (11) Follow the viewing stereogram of the viewer (15) (14). For example, the navigation system (11) can be built into a large center of the instrument carrier in a car. If the viewer (15) is sitting in the driver's seat of the car, he looks at the display at an oblique angle and projects a perspective view (11). Here, the projection perspective (11) is fitted to view the perspective view (4), so the projection perspective (11) and the viewing perspective (14) are integrated into each other. Thus the viewer (15) head (19) position simultaneously regenerates the position of the virtual camera (12) (see Figure 1).

A further possible feature of the illustrated navigation system is a sensor (17) (shown schematically) designed to detect the position of the head (15) of at least one viewer (15), such as a sensor (17) ) can be a camera (17). Therefore, the position of the head (19) relative to the display (10) can be detected, and the projected perspective view (11) can be tracked accordingly.

To this end, a control means (18) is shown which is connected to a sensor (17) [for example a camera (17)] and the control means (18) is used to refer to the head of the viewer (15) by the number of computers ( 19) Position The orientation of the projection perspective (11) is calculated by the number of computers.

In addition, the control means (18) is connected to a mirror position detecting means (20) and a sitting position detecting means (21), and the mirror position detecting means (20) can detect the mirror (22) of the vehicle. Bit The position of the seat (23) of the car can be detected by the sitting position detecting device (21). Based on the information of the mirror position detecting device (20) and the sitting position detecting device (21), the control means (18) can calculate the position of the head (19) of the viewer (15), and the virtual camera (12) The position of the ) can be calculated by the control (18) to correspondingly display the projected perspective (11).

Figure 4 shows another embodiment of a navigation system (1) having a display (10), wherein the display (10) is made to view a screen which allows the image in a display (10) to be composed of two different Watch the perspective (14). In a further feature of the display (10) of the navigation system (1) of the present invention, according to Figure 3, the map presentation (13) can be viewed by a first viewing perspective view (14) and another viewing perspective view (14). For example, a viewer (15) on the left side (driving side) of a car and a viewer (15) on the right side (e.g., on the side of the same vehicle) look at the display. The display (10) which is double-viewed can make the map presentation (13) viewed from the first viewing projection (14) of the driver (15) and the second viewing projection (14) of the same vehicle (15). . According to the invention, the position of the virtual camera (12) can be aligned towards the driver's head (19) and the car's head (19), so that the projection perspective (11) can be matched with the first and second viewing perspectives. Figure (14). In particular, a control means (18) can be provided for a pair of viewing screens, and a sensor (17) can be provided for each of the first shown viewer (15) and the second illustrated viewer (15). In addition, a mirror position detecting device (20) and a sitting position detecting device (21) may be provided for each of the two viewers (15) for each of the mirrors (22) and a seat (23).

The invention is not limited to the preferred embodiments described above. Many variations are also contemplated, using the illustrated solutions and substantially different types of embodiments. All of the features and/or advantages, including structural details, spatial arrangements, and method steps shown in the scope of the patent application, the specification or the drawings may be individually or in various combinations, which are within the scope of the invention.

(1)‧‧‧Navigation system

(11)‧‧‧Projection perspective

(14)‧‧‧View projection

(14) ‧‧‧View perspective

(15)‧‧‧ Viewers

(19) ‧ ‧ [viewer (15)] head

Claims (11)

A navigation system having a display (10) with which a map presentation (13) can be reproduced in a three-dimensional manner, wherein the map presentation (13) is based on a projection perspective of a virtual camera (12) ( 11), using the projection perspective to reproduce the map presentation (13) in a virtual photo mode, wherein the projection perspective (11) of the virtual camera (12) is a viewer of the display (10) (15) ) Align the viewing perspective (14). For example, in the navigation system of claim 1, wherein: the display (10) is designed in the form of a dual view screen. A navigation system according to claim 2, wherein: a first projection perspective (11) is aligned on a viewing perspective (14) of a first viewer (15) of the display (10); - A second projection perspective (11) is aligned on a viewing perspective (14) of a second viewer (15) of the display (10). A navigation system according to any one of claims 1 to 3, wherein at least one sensor (17) is provided for detecting the position of the head (19) of the at least one viewer (15). And wherein the sensor (17) is formed in particular by a camera (17) with which the position of the head (19) of the viewer (15) can be taken. The navigation system of claim 4, wherein: a control means (18) is provided, the control means (18) is connected to the at least one sensor (17), wherein the control means (18) is set to the head The orientation of the at least one projection perspective (11) is numerically calculated by computer at least one position of (19). For example, the navigation system of any one of the patent scopes 1 to 3, wherein: The control means (18) is configured to align the orientation of the projection perspective (11) of the virtual camera (12) with a menu in the display and/or the control means (18) with at least one mirror position detecting means (20) connected, and/or connected to a sitting position detecting device (21) of a car, so that the projection perspective (11) can be aligned according to the mirror position and/or the sitting position. A method for operating a navigation system (1) having a display (10) by which a map presentation (13) is reproduced in a three-dimensional manner, wherein the map is presented (13) according to a virtual photographic perspective view, by which the map rendering (13) is reproduced in a virtual photographic manner, wherein the projection perspective (11) of the virtual camera (12) is at least one viewer of the display (10) ( 15) Align the viewing perspective (14). The method of claim 7, wherein the position of the head (19) of the at least one viewer (15) is detected using a sensor (17), in particular by a camera (17). The method of claim 7 or 8, wherein the position of the head (19) of the at least one viewer (15) is detected to determine the viewing perspective (14), in particular using a car The mirror position detecting device (20) and/or a sitting position detecting device (21) in a car. The method of claim 7 or 8, wherein: the position of the head (19) of the viewer (15) is continuously detected, so that the projection perspective (11) follows the head of the viewer (15) The actual position of (19) is guided in unison. A computer program product having a code means for implementing the computer program in a computer or a related control device (18), particularly a device having a navigation system according to any one of claims 1 to 6. When implemented, it is used to implement any of the 7th to 10th patent applications. The steps of the method.