DE102015222844A1 - Method and control device for operating a field of view display device for a vehicle - Google Patents

Abstract

The invention relates to a method (1500) for operating a field of view display device (110) for a vehicle (100), the method (1500) comprising a step (1502) of reading in an eye position (118) of a viewer (106) of the field of view display device (150). 110), and an image (104) to be displayed on an imager (108) of the field of view display device (110), a step (1504) of determining an area (210) of the imager (210) currently visible to the viewer (106). 108) using the eye position (118) and a step (1506) of outputting a signal (134) when a symbol (600) to be imaged or imaged in the image (104) is at least partially displayed outside of the visible region (210) ,

Description

State of the art

The invention is based on a device or a method according to the preamble of the independent claims. The subject of the present invention is also a computer program.

The US Pat. No. 6789901 B1 describes a system and method for providing images to an operator of a vehicle.

Disclosure of the invention

Against this background, with the approach presented here, a method for operating a field of view display device for a vehicle, furthermore a control device which uses this method, a field of view display system and finally a corresponding computer program according to the main claims are presented. The measures listed in the dependent claims advantageous refinements and improvements of the independent claim device are possible.

In a field of view display system, an imager can be made so large that the complete imager can only be detected entirely from a restricted central viewing area. Outside this central viewing area, the imager is only partially detectable. However, a central area of the imager remains visible over a wide viewing area. In particular, when contact-analog information is displayed on the imager that is invisible or obscured to a viewer due to its viewing position, a signal or symbol may be provided that prompts the viewer to adjust their viewing position.

By means of the central area visible over the large viewing area, important information can be displayed in the central area, which can be detected from many possible viewing positions.

A method for operating a field of view display device for a vehicle is presented, the method comprising the following steps:
Reading an eye position information representing an eye position of a viewer of the visual field display device, and reading an image to be displayed on an imager of the visual field display device;
Determining an area of the imager currently visible to the viewer using the eye position; and
Outputting a signal if a symbol displayed or to be imaged in the image is to be at least partially displayed outside the visible region.

This method can be implemented, for example, in software or hardware or in a mixed form of software and hardware, for example in a control unit.

A field of view display device can be understood as a head up display for a road vehicle, in particular for a passenger car. An eye position may be a currently detected position of at least one eye of the observer. A second eye position can also be detected. The second eye position may be determined using known or estimated features of the viewer. The image can be read in as image information. The image may include symbols associated with a particular area of the imager. In other words, a symbol may be assigned a coordinate value indicating a presentation location on the imager. If the presentation location is out of the visible range, the signal is output.

The signal may be provided to the user using a separate signaling device. For example, a signal light or a symbol may be activated if the user can incompletely capture the image.

The signal can be output as an optical marker within the visible range of the imager. A marker can be a graphic or a symbol. The marker can be superimposed on the image. By integration into the image, the marker can be detected quickly and easily.

The marker may have an arrow shape. By the arrow shape, the marker can transmit a direction information. An arrow shape can be intuitively captured by the viewer.

The marker can be output contact analogous to the symbol. Through a contact analog output, the presentation of the hidden icon can affect a presentation of the marker. For example, the marker may signal a direct connection to the symbol.

The signal may include a directional indication. The direction indicator may map a direction from the visible area to a display location of the icon outside the visible area. The direction indicator may be, for example, arrow-shaped. By a directional note can the direction to the hidden symbol can be detected easily and quickly.

The approach presented here also creates a control unit which is designed to execute, to control or to implement the steps of a variant of a method presented here in corresponding devices. Also by this embodiment of the invention in the form of a control device, the object underlying the invention can be achieved quickly and efficiently.

For this purpose, the control unit can have at least one arithmetic unit for processing signals or data, at least one memory unit for storing signals or data, at least one interface to a sensor or an actuator for reading sensor signals from the sensor or for outputting control signals to the actuator and / or or at least a communication interface for reading or outputting data embedded in a communication protocol. The arithmetic unit may be, for example, a signal processor, a microcontroller or the like, wherein the memory unit may be a flash memory, an EPROM or a magnetic memory unit. The communication interface can be designed to read or output data wirelessly and / or by line, wherein a communication interface that can read or output line-bound data, for example, electrically or optically read this data from a corresponding data transmission line or output to a corresponding data transmission line.

A control device can thus be understood here to mean an electrical device which processes sensor signals and outputs control and / or data signals in dependence thereon. The control unit may have an interface, which may be formed in hardware and / or software. In the case of a hardware-based embodiment, the interfaces can be part of a so-called system ASIC, for example, which contains various functions of the control unit. However, it is also possible that the interfaces are their own integrated circuits or at least partially consist of discrete components. In a software training, the interfaces may be software modules that are present, for example, on a microcontroller in addition to other software modules.

In an advantageous embodiment, the controller performs control of an image output device such as the field of view display system, the field of view display device and / or the eye position detection device. For this purpose, the control unit can access, for example, sensor or data signals such as the eye position information and the image to be displayed. Control is via actuators or output units such as the field of view display device.

Furthermore, a visual field display system for a vehicle is presented, wherein the visual field display system has the following features:
a field of view display device with an imager for displaying an image to a viewer;
eye position detecting means for detecting an eye position of the observer; and
a controller according to the approach presented here.

The eye position detection device may comprise at least one camera which is aligned with the head of the observer. In particular, the eye position detection device may comprise a stereo camera system for spatially detecting the eye position.

Also of advantage is a computer program product or computer program with program code which can be stored on a machine-readable carrier or storage medium such as a semiconductor memory, a hard disk memory or an optical memory and for carrying out, implementing and / or controlling the steps of the method according to one of the embodiments described above is used, especially when the program product or program is executed on a computer or a device.

Embodiments of the invention are illustrated in the drawings and explained in more detail in the following description. It shows:

1 a representation of a vehicle with a field of view display system according to an embodiment;

2 a schematic diagram of a field of view display system according to an embodiment;

3 a representation of various viewing areas according to an embodiment;

4 a block diagram of a control device according to an embodiment;

5 a representation of a road with a superimposed representation of a marker according to an embodiment;

6 a representation of a road with a superimposed representation of a symbol according to an embodiment;

7 a representation of a road with a superimposed representation of a symbol-directed marker according to an embodiment;

8th a representation of a road with a superimposed representation of a highlight symbol according to an embodiment;

9 a representation of a fallback recommendation in a field of view display device according to an embodiment;

10 a representation of a pedestrian marking in a field of view display device according to an embodiment;

11 a representation of a lane marker in a field of view display device according to an embodiment;

12 an illustration of a distance warning in a field of view display device according to an embodiment;

13 an illustration of a lane departure warning in a field of view display device according to an embodiment;

14 an illustration of a distance setting in a field of view display device according to an embodiment; and

15 a flowchart of a method for operating a field of view display device according to an embodiment.

In the following description of favorable embodiments of the present invention, the same or similar reference numerals are used for the elements shown in the various figures and similar acting, with a repeated description of these elements is omitted.

1 shows a representation of a vehicle 100 with a field of view display system 102 according to an embodiment. The field of view display system 102 is designed to be a virtual picture 104 in a field of view of a viewer 106 For example, a driver 106 of the vehicle 100 to show. The field of view can be referred to as a field of view. The picture 104 is from an imager 108 a field of view display device 110 of the vehicle 100 issued and via an optics 112 of the field of view display device 110 in the field of view of the viewer 106 mirrored. The optics 112 includes several mirrors here. The field of view display device 110 can as a head-up display 110 be designated. Here is the picture 104 using the windscreen 114 of the vehicle 100 mirrored. The picture 104 can also be mirrored into the field of view via a combiner.

The field of view display system 102 further comprises a detection device 116 for detecting an eye position 118 the viewer 106 , The detection device 116 is on the viewer 106 aligned. The detection device 116 provides eye position information 120 for a control unit 122 for operating the field of view display device 110 ready. The control unit 122 is connected to the field of view display device.

The control unit 122 is designed based on the eye position information 120 one for the viewer 106 visible area of the imager 108 to determine. When the eye position 118 outside a viewing area 124 lies, the viewer can 106 the picture 104 do not see anymore. The viewing area 124 can be called eyebox.

On the imager 108 becomes an image information 126 shown to the picture 104 issue. The picture information 126 is from another controller 128 of the field of view display device 110 generated. For this, the further control unit processes 128 Information of the vehicle 100 as well as environment information 130 For example, from an environment detection system 132 of the vehicle 100 to be provided. The picture information 126 includes, for example, contact analog symbols. Contact analog symbols are in the picture 104 presented to the viewer 106 aligned to objects and / or structures in the environment.

The control unit 122 to operate reads the image information 126 and determines, using the visible area, which part of the image 104 within the visible range and which part of the image 104 outside the visible range. If one or more symbols are at least partially out of the visible range, the controller issues 122 a signal 134 out. Here is the signal 134 for the imager 108 output. The signal 134 becomes in addition to the picture 104 as an optical marker within the visible area on the imager 108 output. For example, an arrow may be output in the visible area pointing in the direction of the outside icon.

2 shows a schematic diagram of a field of view display system 102 according to an embodiment. The field of view display system 102 essentially corresponds to the field of view display system in FIG 1 , The field of view display system 102 is shown in a plan view. Here, the detection device 116 two to the viewer 106 aligned cameras 200 . 202 on. The cameras 200 . 202 are on opposite sides of the field of view display 110 arranged and capture the viewer 106 from different detection angles. Through the two cameras 200 . 202 becomes a spatial capture of the viewer 106 reached. In other words, the detection device 116 here a stereo camera system. The first camera 200 makes a first video signal 204 ready. The second camera 202 makes a second video signal 206 ready. The video signals 204 . 206 be in a microcontroller 208 processed. The microcontroller 208 recognizes the right eye and, alternatively or in addition, the left eye of the observer 106 in the pictures of the cameras 200 . 202 and determines by triangulation a right eye position and, alternatively or additionally, a left eye position. Both eye positions can be determined in parallel. Likewise, one of the eye positions may be determined and the other eye position provided using the eye distance. The eye positions are in the eye position information 120 displayed.

Depending on the respective eye position is a section 210 of the imager 108 visible, noticeable. The cutout 210 is through the control unit 122 using the eye position information 120 and known dimensions of the field of view display device 110 calculated as the visible range.

In order to represent the largest possible field of view given space, the imager can 108 (Picture Generating Unit, PGU) are executed larger than that on the main mirror 212 over the entire Eyebox representable image.

In other words, in 2 a field of view display 110 presented for motor vehicles. In the field of view display 110 is a limitation of the visible virtual image in the usable eyebox not primarily by the imager 108 or the display 108 limited, but by, by the driver 106 Counted out, first optical element 212 the field of view display 110 , The first optical element 212 here is the main mirror 212 , In this case, a dynamic adaptation of the display content to that for the driver 106 actually visible part 210 potentially on the display 108 displayable image. The adjustment is made by a continuous detection of the head position and the position of both eyes by head tracking by means of at least one camera 200 , In the control unit 122 a calculation is made for the driver 106 from the current head position perceptible part 210 the display image or a section thereof from the eye position and the known parameters of the field of view display image. From this, an optimized representation is derived, taking into account the visible part of the image 210 and the goal of an as possible contact-analog representation of an optimized graph determined. Optionally, the displayed image is also adapted to the driving situation, such as motorway or city traffic.

It is schematically simplified a visual field display 110 shown in the vehicle in plan view, the driver 106 over the main mirror, which acts like a magnifying glass 212 a section 212 the imager image or the active area of the imager 108 considered enlarged.

The sketch can be used as a Combiner field of view 110 be interpreted, the main mirror 212 then the combiner is. Likewise, the sketch can be used as a windshield field of view 110 be interpreted, the main mirror 212 in the device 110 integrated and the visual effects of the windscreen are neglected.

In both cases, trimming of the visible image is not performed by the active area of the imager 108 but already within the normal eyebox and on both sides by the mirror 212 or the combiner 212 ,

This has the advantage that for a given size of the main mirror, which is limited by space conditions in the vehicle, a larger overall picture can be displayed.

The head or eye position of the driver 106 is through one or more cameras 200 . 202 detected.

From the known geometry of the vehicle, the mirrors 212 the field of view display 110 and optionally the windshield on the one hand and the detected eye position on the other hand is then in a microprocessor 122 which is part of the visual field display electronics, for example, calculates which part 210 of the picture, in the following figures as a visual field of view 210 is called, the driver 106 can actually perceive in the current position. These devices are via a computing unit 208 connected.

Now, as in the 5 and 7 an icon that is wholly or partially outside the field of view 210 is, so the presentation is modified so that the representation for the driver 106 becomes more noticeable. This is done, for example, by an additional graphic within the field of view 210 or by extending the graphic into the visual field of view 210 into it. Particularly advantageous is the approach presented here for contact analog or directional analog Representations that match the scene in the horizontal direction.

This improved representation can be continuously updated and possibly changed depending on the usually changing position of the symbol and the changing head position.

3 shows a representation of different viewing areas according to an embodiment. It is a contact-analogue viewing area 124 and a central viewing area 300 shown. The central viewing area 300 is larger than the contact analog viewing area 124 , The contact analog viewing area 124 corresponds to the viewing area in 1 , When an eye of the viewer within the contact-analogous viewing area 124 can be arranged, with the eye of the whole imager 108 and with it the whole picture 104 be recorded. The proportions of the imager 104 define the proportions of the image 104 ,

When the eye is the contact-analog viewing area 124 but within the central area of consideration 300 can be arranged, subregions of the imager 108 no longer be recorded. This results in a visible area 210 as he is for example in 2 is shown. The visible area 210 can also be used as a visual field of view 210 be designated. Icons that are out of the visible area 210 on the imager 108 can not be seen from this eye position.

As long as the eye is within the central viewing area 300 can be arranged, certainly a central area 302 of the imager 108 be recorded. In the central area 302 For example, vehicle-relevant information and instructions, such as a vehicle speed are mapped. Here is this information in a dock line 304 displayed. The dock line 304 extends along a lower edge of the central area 302 ,

The display area 108 of contact-analogue field of view displays can be divided into different areas. For example, a status line 304 or dock line 304 with vehicle-related information, such as speed or warning messages. Likewise, a contact-analogous area 104 with environment-related information, such as contact-analog navigation hints, a tag of vehicles detected by auxiliary systems of the vehicle, such as ACC, and / or lane boundaries.

These two areas can also be displayed in different virtual image distances. The contact analogue area 104 can be displayed contact analog with pitch compensation stable on the road. The status bar 304 can be displayed on the vehicle. Contents of the field of view display can be dynamically shifted depending on the head position of the driver.

In the approach presented here, such a field of view display device is designed so that the unavoidable restrictions on the perception by the driver are largely minimized by trimming the virtual image depending on the head position.

This will be the Dockzeile 304 represented in a first region of the imager so that they are in the range 300 the usual Eyebox (abbreviated EB) at any time fully and without trimming is visible.

In other words, an Extended FoV AR-HuD is introduced. This shows the eyebox 300 the dock line 304 for example, a width of 125 mm. Thereby, the driver finds this important information quickly and in the same position from any head position. The contact analogue area 104 will be in a larger area as an expanded field of view, but with a smaller eyebox 124 shown. This has here, for example, a width of 82 mm. As a result, with the given mirror size, which is limited by the installation space, a larger area of the background can be superposed with contact-analogous information.

The central field of view 302 can from any eye position within the normal eyebox 300 as Dock Eyebox 300 can be referred to, without trimming be viewed. The contact-analogous field of view 104 may not be fully or only with one eye, depending on the head position. This allows the image of one or both eyes to be cropped at the top, bottom or side. Within the contact-analog Eyebox 124 On the other hand, the contact-analogous field of view is also 104 always fully visible without trimming. The field of view 210 represents the monocular visible image area for a particular eye position within the normal eyebox 300 , Here the term Eyebox is used uniformly. In practice, it is still possible to differentiate between the eyebox window, which is statically available with a certain setting of the visual field display and the total eyebox, which is created by expanding the eyebox window, for example by tilting the mirror, thereby adapting the height of the driver's eyes in the vehicle, similar to the rearview mirror can be done.

4 shows a block diagram of a controller 122 for operating a field of view display device according to an embodiment. The control unit 122 essentially corresponds to a control unit, as in the 1 and 2 is shown. The control unit 122 has a read-in interface 400 , a determination device 402 , a testing device 404 and an output interface 406 on. The read-in interface 400 is designed to provide eye position information 120 and image information 126 read. In this case, the eye position information represents 120 an eye position 118 a viewer of the field of view display device. The picture information 126 represents an image to be displayed on an imager of the field of view display device 104 , The determination device 402 is designed to be an area currently visible to the viewer 210 of the imager using the eye position 118 to investigate. The testing device 404 is designed using the image 104 and the visible area 210 to check if one in the picture 104 pictured symbol at least partially outside the visible area 210 is to represent. The output interface 406 is designed to be a signal 134 output when the symbol is at least partially out of the visible range.

5 shows a representation of a road 500 with a superimposed representation of a marker 502 according to an embodiment. This is the street 500 in a field of view of a viewer viewing a field of view display device. The image reflected by the field of view display in the field of view 104 is the street 500 superimposed. Here, the viewer has arranged his head so that at least one eye outside the contact-analogous viewing area, as in 3 is displayed, the viewer can not see the complete picture 104 to capture. The field of view 210 is laterally opposite the picture 104 postponed. Here the observer's head is on the right. This is the visual field of view 210 in the picture 104 moved to the left. The central area 302 with the docking line not shown here is visible regardless of the head position.

The street 500 has a turn lane in the field of view 504 to the right. The turn lane 504 is mostly out of the field of view 210 arranged. This allows the viewer to see one on the turn lane 504 do not detect the turning signal shown in the contact analogue or a turn signal. The approach presented here recognizes that the turn-off instruction is out of the visible range 210 lies. Then a signal is output. Here the signal is within the field of view 210 as a marker 500 shown. The marker 500 here is composed of three superimposed symbols. The symbols are arrow-shaped and right-pointing. The marker 500 is at a right edge of the field of view 210 arranged.

In other words, the position and type of graphics 502 or the symbol 502 adapted to the head position or the resulting field of vision.

6 shows a representation of a road 500 with a superimposed representation of a symbol 600 according to an embodiment. The presentation essentially corresponds to the representation in 5 , In contrast, the viewer's head is positioned so far to the left that the turn lane 504 within the field of view 210 lies. This is the symbol 600 visible to the viewer and becomes contact analogous to the turn lane 504 as a turn-off arrow 600 shown. The marker is unnecessary here.

In the 5 and 6 is an exemplary realization for the application navigation on a turn lane 504 shown. The representation in the contact analog area 104 can be modified in conjunction with head-tracking so that the best possible adaptation to the environment takes place. Edge areas can be detected monocularly and thus shared.

In 5 is the head position right in the eyebox. The actually visible field of view 210 is thus left in the contact-analogue field of view 104 , The graphic shows a real street in the background 500 with turn lane 504 and exit. According to navigation, the driver should turn right. In the contact-analogue field of view 104 the field of view will become the red corners 502 and indicate that the driver should drive further to the right than the current field of view 210 equivalent.

In 6 The head position is approximately at the left edge of the eyebox. The actually visible field of view 210 lies on the right in the contact-analogue field of view 104 , In the contact-analogue field of view 104 The visual field indicator becomes the turn arrows 600 contact analogue on the turn lane 504 are shown or are now visible there.

Technically, the implementation succeeds such that a road map including turning lanes, a target route of the navigation system, an own position of GPS and navigation, possibly supporting camera data for the lane course, optionally data from odometer, acceleration information and rotation rate information and a head tracking information from an interior camera be merged.

From this, a model of the environment is computationally determined, which forms the basis for a contact-analogous field of view display image 104 represents. From the known geometry of the field of view display components and the head position of the driver is determined which section 210 from the model field of view 104 the driver in the field of view display can currently see. This is either monocular or binocular interpretable. Now if the turn lane 504 within the field of view 210 is a contact analog representation is shown, for example as in 6 , When the track is out of sight field of view 210 lies, becomes a representation 502 chosen the driver from the view field of view 210 points outward, as in 5 ,

The 7 and 8th show representations of a road 500 with a superimposed representation of a highlight symbol 600 according to an embodiment. The presentation essentially corresponds to the representations in the 5 and 6 , In contrast, no turning lane is shown here. Here is a vehicle in front 700 shown. As a highlight symbol 600 is a U-shaped mark a lower edge of the vehicle 700 shown.

In 7 is like in 5 the observer's head arranged so far to the right that the icon 600 partially outside the field of view 210 is arranged. This is for the viewer only a small part of the symbol 600 visible, noticeable. To pay attention to the symbol 600 to steer, here is an arrow-shaped, on the symbol 600 pointing marker 502 within the visual field of view 210 , next to the symbol 600 arranged.

In 8th is the head like in 6 arranged on the left. This allows the viewer the whole icon 600 to capture. There is no marker here.

Analog can for the contact-analogue display of a preceding vehicle 700 within the field of view 210 for example, a bracket 600 down around the vehicle 700 Be drawn outside only a half bracket or a line equal to the bottom edge, as in the 7 and 8th , Alternatively, both representations can be combined.

Evidence of danger points or points of interest may be framed when within the field of view and an arrow 502 in the field of view if they are outside the field of view.

Through the approach presented here, the driver can learn that he by appropriate displacement of the head the field of view 210 can move and consciously use this effect to dynamically expand the field of view.

In the 5 to 8th the representations in the contact-analogue area are modified in such a way as to depend on the head position in such a way that, adapted to the respective head position, a coherent and intuitively perceptible image is created for the driver. The dynamic adaptation of the extended field of view takes place, for example, depending on the driving situation.

In one exemplary embodiment of the contact-analogous visual field display presented here, a field of view of approximately 7 × 3 ° is achieved. Using the entire display area of 70 × 35 mm ² results in up to 10 × 5 °. This corresponds to an extension of the horizontal field of view and the vertical field of view by approx. 40%, whereby the area of the dock line and below is used for contact-analogous representations. The core advantages of the field of view display are retained. A perception of the environment and a readability in the sun are still guaranteed. There is no reading glasses required.

9 shows a representation of a fallback recommendation 900 in a field of view display device according to an embodiment. The alternative recommendation 900 is like in the 5 to 8th in a field of vision of a driver of a vehicle as in 1 appears. Here there is a risk of collision with a vehicle in front 700 , The risk of collision is through as in the 7 and 8th by a warning symbol 902 and a highlight symbol 600 pictured. The alternative recommendation 900 is contact-analogous than on the vehicle 700 passing trajectory 900 in the street 500 shown.

10 shows a representation of a pedestrian mark 1000 in a field of view display device according to an embodiment. The pedestrian mark 1000 is like in the 5 to 9 in a field of vision of a driver of a vehicle as in 1 appears. Here, in the dark, a pedestrian has been detected by an environment monitoring device of the vehicle. pedestrian marking 1000 is superimposed on the pedestrian contact analog.

11 shows a representation of a lane marker 1100 in a field of view display device according to an embodiment. The lane marker 1100 is like in the 5 to 10 in a field of vision of a driver of a vehicle as in 1 appears. The lane marking symbolizes 1100 here a navigation hint, as in 6 , The lane marker 1100 is the turn lane 504 superimposed contact analog.

12 shows a representation of a distance warning 1200 in a field of view display device according to an embodiment. The distance warning 1200 is like in the 5 to 11 in a field of vision of a driver of a vehicle as in 1 appears. This shows a traffic light-like arrangement of signal points 1200 contact analog along a lower edge of the preceding vehicle 700 a warning signal when the safety distance to the vehicle 700 is fallen short of. The distance warning 1200 may be in shape proportional to the distance to the vehicle 700 be adjusted.

13 shows a representation of a lane departure warning 1300 in a field of view display device according to an embodiment. The lane departure warning 1300 is like in the 5 to 12 in a field of vision of a driver of a vehicle as in 1 appears. Here is the lane departure warning 1300 as a contact-analogous line of the existing road marking considered.

14 shows a representation of a distance adjustment in a field of view display device according to an embodiment. The distance adjustment is like in the 5 to 13 in a field of vision of a driver of a vehicle as in 1 appears. These are contact-analogous strokes 1400 at predefined distances to the vehicle on the road 500 shown. The stroke selected for the distance adjustment 1400 can be highlighted.

In the 9 to 14 In addition to the contact analog information described above, further vehicle-related information is also displayed. This information is in a dock line, as in 3 shown.

Head-up displays (HuDs) or field of view displays can be used in various forms.

Field of view (FOV) field of view displays are beneficial. In the primary field of vision of the driver, additional information in the real driving scene can be superimposed on the windshield (WSS) by the technology of so-called contact analogy or superimposed reality ("augmented reality", AR).

In the 9 to 14 Various typical application examples of a visual field display with contact analogy or contact-analogous information are shown.

15 shows a flowchart of a method 1500 for operating a field of view display device according to an embodiment. The procedure 1500 For example, on a control device, as in 4 is shown executed. The procedure 1500 has a step 1502 of reading in, one step 1504 determining and a step 1506 of spending. In step 1502 of reading in, an eye position information representing an eye position of an observer of the visual field display device and an image to be displayed on an imager of the visual field display device are read. In step 1504 In the case of determining, an area of the imager which is currently visible to the viewer is determined using the eye position. In step 1506 outputting a signal is output when a symbol to be imaged or imaged in the image is at least partially displayed outside the visible range.

Activation of the "extended field of view" can be effected via the respective function in conjunction with the driving mode. For example, with slow traffic jam and Internet activity, automatic activation could occur. Optionally, the extension of the field of view can be implemented stepwise or continuously as a zoom function. Thus, drivers who are not optimally seated in the center of the eyebox due to their height can achieve at least a proportionate increase in the field of view. With optimal driver size, a permanent use of the entire display is possible. This can improve the contrast, as there are no unused image areas on the display. Furthermore, the ergonomic properties can be improved because a larger image is a better readable image.

If an exemplary embodiment comprises a "and / or" link between a first feature and a second feature, then this is to be read so that the embodiment according to one embodiment, both the first feature and the second feature and according to another embodiment either only first feature or only the second feature.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• US 6789901 B1 [0002]

Claims (9)

Procedure ( 1500 ) for operating a field of view display device ( 110 ) for a vehicle ( 100 ), the process ( 1500 ) has the following steps: reading in ( 1502 ) one, one eye position ( 118 ) of a viewer ( 106 ) of the field of view display device ( 110 ) eye position information ( 120 ) and reading ( 1502 ) one on an imager ( 108 ) of the field of view display device ( 110 ) image ( 104 ); Determine ( 1504 ) one currently for the viewer ( 106 ) visible area ( 210 ) of the imager ( 108 ) using the eye position ( 118 ); and spend ( 1506 ) of a signal ( 134 ), if one in the picture ( 104 ) imaged or imaged symbol ( 600 ) at least partially outside the visible range ( 210 ) is to represent. Procedure ( 1500 ) according to claim 1, wherein in step ( 1506 ) outputting the signal ( 134 ) as an optical marker ( 502 ) within the visible range ( 210 ) of the imager ( 108 ) is output. Procedure ( 1500 ) according to claim 2, wherein in step ( 1506 ) of issuing the markers ( 502 ) has an arrow shape. Procedure ( 1500 ) according to one of claims 2 to 3, wherein in step ( 1506 ) of issuing the markers ( 502 ) contact analog to the symbol ( 600 ) is output. Procedure ( 1500 ) according to one of the preceding claims, wherein in step ( 1506 ) outputting the signal ( 134 ) comprises a direction indication, the direction indication being a direction from the visible region ( 210 ) to a representation of the symbol ( 600 ) outside the visible range ( 210 ) maps. Control unit ( 122 ) for operating a field of view display device ( 110 ) for a vehicle ( 100 ), whereby the control unit ( 122 ) has the following features: a read-in interface ( 400 ) for reading in, an eye position ( 118 ) of a viewer ( 106 ) of the field of view display device ( 110 ) eye position information ( 120 ) and one on an imager ( 108 ) of the field of view display device ( 110 ) image ( 104 ); a determination device ( 402 ) for determining a momentarily for the viewer ( 106 ) visible area ( 210 ) of the imager ( 108 ) using the eye position ( 118 ); and an output interface ( 406 ) for outputting a signal ( 134 ), if one in the picture ( 104 ) pictured symbol ( 600 ) at least partially outside the visible range ( 210 ) is to represent. Field of View Display System ( 102 ) for a vehicle ( 100 ), wherein the field of view display system ( 102 ) has the following features: a field of view display device ( 110 ) with an imager ( 108 ) for displaying an image ( 104 ) for a viewer ( 106 ); an eye position detection device ( 116 ) for detecting an eye position ( 118 ) of the viewer ( 106 ); and a controller ( 122 ) according to claim 6. Computer program adapted to carry out the method according to one of the preceding claims. Machine-readable storage medium on which the computer program according to claim 8 is stored.

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