Method for coordinated display of camera images in motor vehicle, and corresponding motor vehicle

Abstract

The invention relates to a method for enabling a vehicle surroundings in a motor vehicle (10) to be recognized for a vehicle occupant. Corresponding camera image data of the vehicle surroundings are recorded by means of a plurality of different auxiliary systems (12, 14) each comprising at least one camera (16, 20). Then, a coordination is carried out with respect to the predefined image properties and / or display properties for similar display of the different camera image data by means of the at least one display device (26). The camera image data of the different auxiliary systems (12, 14), which are respectively displayed by means of the at least one display device (26), are displayed in a correspondingly coordinated similar manner. The invention also relates to a correspondingly arranged motor vehicle (10).

Description

Technical Field

[0001] The invention relates to a method for making vehicle surroundings recognizable in a motor vehicle. The invention also relates to a correspondingly configured motor vehicle. Background Art

[0002] Nowadays, assistance systems are increasingly used in motor vehicles or provide assistance functions that also use cameras for environmental detection. In particular, if a camera system with multiple cameras is used here, different presentations and image reproductions may occur. This may, for example, make it difficult for the user to achieve the recognizability of the presentation, to recognize objects presented in the individual camera views, etc. This is not only disadvantageous in terms of comfort of use, but may also mean certain safety risks depending on the situation, for example, when objects or spatial relationships are not perceived or recognized or only delayed or generally require more time and attention from the user for visual detection and understanding of the corresponding presentation. This time and attention are not available, for example, for conscious and focused control of the vehicle or for observing the surrounding area not covered by the camera.

[0003] As a solution, DE 10 2020 125 232 A1 describes a method for color correction of a camera system for a vehicle. The camera system has a plurality of cameras for detecting the environment, each of which has a field of view for generating a camera image. The color correction of the camera image is achieved by selecting a reference value located in at least one field of view of the camera. The camera image is then color corrected according to the reference value. Therefore, a method for a surround view system should be provided, by which improved color correction can be achieved.

[0004] As another solution, WO 2019 / 072 451A1 describes a method for processing images. The surrounding environment is captured by two cameras to obtain a first image and a second image showing the surrounding environment from different angles. Then, a first image area in the first image and a second image area in the second image are obtained, and these image areas image the same predetermined inspection area of ​​the surrounding environment. Subsequently, a pair of first image areas and second image areas showing the same scene content are identified.

[0005] As another solution, DE 10 2017 123 452 A1 describes a method for generating an initial image showing a motor vehicle and a surrounding area in a predetermined target view. This is based on raw images detected by two vehicle-side cameras that overlap at least in some areas and predetermined camera-specific dot density maps, which describe the distribution of image data of each raw image that helps to generate an output image according to the image area. Here, the raw images are spatially adaptively filtered based on each dot density map and image areas corresponding to each other are identified. In addition, the image area of ​​the raw image of a camera is spatially adaptively filtered based on the dot density map specific to other cameras to reduce the clarity difference between the corresponding image areas. Subsequently, the filtered raw image is imaged back onto an image surface corresponding to the target view to generate the filtered raw image imaged back. Then, the output image is generated by combining the filtered raw images imaged back. Therefore, a solution should be provided on how to generate a corresponding output image with high quality so as to display it to the driver of the motor vehicle. Summary of the invention

[0006] The object of the present invention is to enable an improved representation of camera images in a motor vehicle.

[0007] This object is achieved by the subject matter of the independent patent claims. Other possible embodiments of the invention are disclosed in the dependent claims, the description and the drawings. Features, advantages and possible embodiments explained within the scope of describing one of the subject matters of the independent claims are at least similar to the features, advantages and possible embodiments of the corresponding subject matter of the other independent claims, as well as any possible combination of the subject matter of the independent claims, can be considered in combination with one or more dependent claims, if necessary.

[0008] The method according to the invention can be used to make the corresponding vehicle surroundings of the motor vehicle recognizable, i.e., presentable, in a motor vehicle to a vehicle occupant, in particular a driver of the motor vehicle, in an improved manner compared to conventional solutions. In a method step of the method according to the invention, camera image data of at least parts or regions of the corresponding vehicle surroundings of the motor vehicle are respectively recorded by means of a plurality of different assistance systems of the motor vehicle, each of which comprises at least one camera. This can be done, for example, simultaneously or in response to a corresponding request, for example when the corresponding assistance system is activated. The corresponding camera image data can be a single camera image, a series or sequence of camera images or a video stream, etc.

[0009] The fact that the assistance systems are different may, for example, mean that they are set up, i.e. configured for different functions. Therefore, different assistance systems may be separate, independent systems. However, these systems may, for example, be directly or indirectly coupled to each other via the onboard circuit of the motor vehicle or may be controlled by a central controller, etc. Different assistance systems differ not only in their functions, but also in their hardware and / or software resources. Therefore, the cameras of different assistance systems may be different from each other in particular. For example, the cameras may differ from each other in at least one of the following characteristics and / or components: resolution, focal length, shooting angle, aperture size, sensitivity, lens, pattern of Bayer sensor. Through such different resources, i.e., for example, cameras and / or data processing methods, etc., correspondingly different camera image data or image outputs of different assistance systems or correspondingly different presentations of camera image data of different assistance systems may be formed without additional measures when presented or output by means of corresponding display devices.

[0010] Therefore, in another method step of the method according to the invention, coordination, i.e. unification, in terms of predetermined images and / or display characteristics is performed, and the camera image data of different assistance systems respectively requested for display by means of at least one display device of the motor vehicle are displayed or presented uniformly and similarly. This can mean or include corresponding adjustment of the camera image data itself and / or, for example, corresponding adjustment of the control and / or output settings of at least one display device and / or the control or operation of one or more cameras. The coordination can be performed, for example, by different assistance systems, i.e., corresponding coordinated or networked operation of the assistance systems. Additionally or alternatively, this can be performed by a central coordination device of the motor vehicle, which is coupled to a plurality of different assistance systems and at least one display device. This can cause and ensure that the camera image data of different assistance systems are coordinated with each other and / or with predetermined standards or reference values, etc. Here, the predetermined images and / or display characteristics can be unified accordingly, so that the camera image data of different assistance systems can be unified accordingly and / or the camera image data of different assistance systems can be outputted, i.e., presented or displayed, by means of at least one display device in a correspondingly uniform manner.

[0011] In a further method step of the method according to the invention, the camera image data of different assistance systems respectively requested for display or presentation by means of at least one display device are displayed in a correspondingly coordinated and similar manner. Depending on the situation or requirement or application, this can mean or include, for example, the simultaneous display of the camera image data of the correspondingly required selection, i.e., for example, only a specific one of a plurality of different assistance systems, on one or more display devices or displays or screens. In the latter case, the coordination causes the display of correspondingly different camera image data when a change is required, i.e., for example, when switching the auxiliary function used or the auxiliary system used, without a jump or change in the image and / or display characteristics occurring. In this case, for example, when a specific display device is respectively assigned to the auxiliary system or auxiliary function, the camera image data of different assistance systems can be displayed respectively successively or alternately, for example, by means of the same display device or by means of a plurality of display devices.

[0012] Compared to the conventional uncoordinated display of camera image data of different assistance systems, the present invention can achieve improved user comfort for vehicle occupants, faster and easier recognizability of the displayed camera image data and thus, if necessary, improved safety. For example, faster and easier recognizability can be achieved by eliminating or reducing the adjustment time of the eyes of the corresponding vehicle occupants or observers when observing the camera image data of different assistance systems. Similarly, the vehicle occupants do not have to manually adjust the display characteristics of at least one display device, such as its brightness or contrast settings, etc., for equal recognizability of the camera image data of different assistance systems. In addition, the recognizability of the camera image data of different assistance systems can also be independent of the respective lighting conditions or be uniform for the respective lighting conditions. All these effects can lead to the fact that the vehicle occupants can particularly easily, quickly and reliably detect and interpret or understand the presented camera image data of different assistance systems and thus can be less distracted or tolerated by this. In particular, the vehicle occupants or corresponding observers can re-identify objects, in particular at least potential safety-related obstacles, in the camera images of different assistance systems particularly quickly, that is, they can be recognized as the same object in each case. This also means comfort and / or safety gains.

[0013] In a possible configuration of the invention, camera image data are captured by means of cameras of different assistance systems, which are located at different positions of the motor vehicle and / or are oriented in different directions. In other words, the camera of the first assistance system can be arranged at a first position of the motor vehicle and / or oriented in a first direction, and the other camera of the second assistance system can be arranged at a different second position and / or oriented in a different second direction. In this case, for example, due to different light incidence angles and / or shadows, etc. that can be generated relative to different positions and / or orientations, particularly large deviations in the image and / or display characteristics or their presentation for the individual raw images of the cameras can occur without coordination. Accordingly, the configuration proposed here constitutes an application case in which the invention can be applied particularly effectively and beneficially. The different positions where the cameras can be arranged can be or include, for example, the windshield area, the front area or the front bumper area, the trunk door, the rear bumper, the rearview mirror, the body pillars, the side sills, etc. Different orientations in the present sense may be or include, for example, a longitudinal direction of the vehicle pointing forward or backward, a transverse direction of the vehicle pointing left or right, a direction pointing or located parallel to the bottom of the motor vehicle, a direction rotated about the longitudinal axis of the vehicle, i.e. a direction inclined upward or downward in the vertical direction of the vehicle, intermediate directions between these directions, etc.

[0014] In another possible embodiment of the present invention, cameras that differ from one another in at least one hardware and / or software property are used for recording camera image data. In other words, not only various cameras are used in different assistance systems, but actually different cameras are used. The cameras can differ, for example, in their optics, i.e., lenses and / or lenses, in their image sensors, i.e., CCD or CMOS chips, etc., in their image processors (image signal processors, ISPs), in the algorithms used by these ISPs and / or in the software parameters for image data processing or preparation, etc. Such different cameras can ensure the optimal working mode and performance of different assistance systems, since they can place different requirements on the cameras of the assistance systems. At the same time, the present invention can still achieve a coordinated and uniform presentation of the camera image data of these different cameras. Therefore, here, an optimized presentation in two aspects and thus the recognizability of the corresponding vehicle surroundings can be achieved.

[0015] In another possible configuration of the present invention, the different assistance systems include at least one first assistance system for supporting the continuous driving operation of the motor vehicle and a second assistance system for supporting the parking or maneuvering operation of the motor vehicle. Such assistance systems may place significantly different requirements on their cameras, for example in terms of orientation and detection or recording area, in terms of the maximum distance from the motor vehicle, until objects are detected in the vehicle surroundings and should be able to be identified in the camera image data, etc. However, the detection or recording areas of the cameras of such assistance systems may partially overlap here, for example in the front area of ​​the motor vehicle. Thus, for example, it is particularly important to provide a coordinated and similar presentation in the camera image data of these different assistance systems when transitioning from continuous driving operation, for example, for approaching a parking lot, to parking or maneuvering operation, for example, for parking there. Therefore, a particularly effective and beneficial application of the present invention is obtained here, because, for example, it is easier for the corresponding driver to park in or out or maneuver, and, for example, parking collisions or collisions with pillars, boundaries or other obstacles can be avoided particularly reliably.

[0016] In a possible extension of the present invention, the first assistance system is configured to provide an AR function (AR: Augmented Reality) for navigation. The second assistance system is configured here for a camera-based presentation of the surroundings for parking maneuvers or maneuvers. Therefore, the second assistance system can, for example, include a so-called surround camera, i.e. a panoramic camera for detecting the immediate surroundings, i.e. the vicinity around the motor vehicle. In contrast, the first assistance system can, for example, include a camera oriented forward in the longitudinal direction of the vehicle, which has a narrower field of view, i.e. a detection or recording area, that extends to a greater distance from the motor vehicle. In actual use of the motor vehicle, switching between the use of these two assistance systems can often occur, so that the present invention can be particularly beneficially applied here.

[0017] In another possible embodiment of the present invention, the image characteristics and / or display characteristics include at least one brightness and / or color rendering and / or color space and / or color temperature and / or contrast. In other words, the camera image data of different assistance systems are coordinated, i.e. unified, in at least one, in particular multiple or all of these characteristics. Then, the camera image data of the assistance system can be displayed, for example, with the same brightness and / or the same color temperature as the camera image data of another assistance system. These characteristics can not only generally determine or significantly influence the recognizability of the displayed camera image data, but the coordination of these characteristics can in particular make it easier for the corresponding vehicle occupants to identify or assign, i.e. track objects contained or reflected in the camera image data of multiple assistance systems. Therefore, the coordination of the characteristics proposed here can achieve or support a particularly simple, fast and reliable orientation of the vehicle occupants when observing the camera image data from different assistance systems.

[0018] In another possible embodiment of the invention, at least one predefined variable is taken into account in the individual regulation or control of the cameras for coordination, which at least one predefined variable is influenced or determined by at least one, a plurality or all other cameras. In particular, this can be a variable that can influence the image and / or display characteristics, i.e., for example, one of the characteristics mentioned elsewhere or a corresponding parameter or a corresponding camera setting. In other words, the cameras of different assistance systems are regulated or controlled independently of each other here, unlike the situation often occurring in conventional motor vehicles. Instead, the regulation or control of the cameras can influence each other here in particular. Thus, the camera or camera regulation device that is activated or used first can, for example, transmit at least one used parameter or a corresponding parameter value to the camera or camera regulation device of the other assistance system, which can then also use this parameter or this parameter value and / or at least one parameter derived therefrom. For example, in order to achieve or set a uniform brightness, a corresponding exposure time for the second camera that is corresponding but different, for example due to different aperture parameters and / or sensitivities of the second camera, can be derived from the transmitted exposure time and aperture opening parameter of the first camera. Coordination of the images and / or display properties of different assistance systems or their cameras can thus be achieved particularly simply and efficiently, for example without central specification.

[0019] Likewise, it is possible to react dynamically to changes. For example, at least one predetermined variable or a corresponding parameter value can be changed as required by the camera control, for example due to changed light conditions in the recording area of ​​the corresponding camera, etc. This change can then be automatically transmitted to other assistance systems or their cameras or camera control devices and accepted by them. This makes it possible to record and display camera image data that is suitable or adapted to the various surroundings or recording conditions despite the coordination.

[0020] In contrast, in vehicles with multiple cameras, a separate optimization is usually performed for each individual camera or each individual assistance system, wherein specific variables or factors or parameter values ​​are used in each case, which are independent of the other cameras or assistance systems. This can lead to very different representations of camera image data of different assistance systems, in particular in the case of different surroundings or recording conditions at different locations in the vehicle's surroundings. This can be avoided or reduced by the present invention.

[0021] In another possible configuration of the present invention, for coordination, a uniform ambient brightness and / or uniform color temperature, such as a uniform white contrast, etc., is determined based on the shooting areas of at least two cameras of different auxiliary systems, i.e., the overlapping areas where the fields of view overlap or overlap. Then, this uniform ambient brightness and / or color temperature is used to coordinate the image and / or display characteristics, in particular for the exposure control or exposure regulation of the individual cameras of different auxiliary systems. Similarly, one or more other or other uniform parameters can be determined additionally or alternatively and used for coordination. For coordination, the corresponding overall system or the corresponding central coordination device can use the overlapping shooting or image areas of different cameras. These overlapping areas can be known, i.e., fixedly predetermined, when the cameras are fixedly positioned relative to each other or relative to the location or orientation of the motor vehicle.

[0022] Likewise, if, for example, at least one camera is mounted movably or its image field can be varied, the overlapping area can be automatically and dynamically determined or estimated and monitored. In this case, the overlapping area can be determined or estimated, for example, based on a corresponding adjustment or control of the movable or variable camera, for example with the aid of a corresponding predefined optical model or based on automatic object recognition and object allocation of objects detected by a plurality of cameras relative to one another, etc.

[0023] A uniform, i.e. global, ambient brightness and / or a uniform, i.e. global, color temperature can then be calculated for these overlapping regions, i.e., for the camera image data of these overlapping regions from a plurality of assistance systems. The cameras, in particular their exposure regulation or exposure control and / or image processing, can thus be regulated, controlled or adjusted with the aid of the respective ISPs of the individual cameras, so that correspondingly coordinated camera image data are generated. By using the overlapping regions or the camera image data recorded there or the brightness and / or color temperature values ​​and / or other parameters or parameter values ​​determined there, a particularly effective and robust coordination can be achieved, since data from a plurality of assistance systems can then be used, which can have been recorded or determined under the same local conditions or correspond to the same local conditions.

[0024] In another possible embodiment of the invention, for coordination purposes, the individual cameras are uniformly controlled or regulated based on a predetermined unified image statistical model and / or a unified reference point in the corresponding vehicle surroundings. The latter can mean, for example, that a predetermined or dynamically determined reference point, for example for brightness or color temperature settings, is used by all assistance systems or their cameras or camera adjustment devices or camera control devices, at least respectively by the assistance systems that can detect and determine the reference point with the help of their cameras. The predetermined unified image statistical model and / or the unified reference point can be used in particular for the so-called CCL (camera control loop) and / or the corresponding dynamic post-processing of the camera or the assistance system. By means of the embodiment of the invention proposed here, it can be ensured particularly simply and effectively that the image and / or display characteristics, such as brightness and / or color rendering, etc., can be uniformly regulated or controlled on all assistance systems.

[0025] The invention also relates to a motor vehicle with a plurality of different assistance systems, each of which comprises at least one camera. In addition, the motor vehicle according to the invention has at least one display device. Here, the motor vehicle according to the invention is configured to display camera image data captured by cameras of different assistance systems in a coordinated, i.e., uniform manner on or by means of the method according to the invention on at least one display device. Therefore, the motor vehicle according to the invention can be in particular the motor vehicle mentioned in conjunction with the method according to the invention or corresponds to the motor vehicle. Accordingly, the motor vehicle according to the invention can have some or all of the characteristics and / or features mentioned in conjunction with the method according to the invention. In order to apply the method according to the invention in a motor vehicle, the motor vehicle can, for example, have a coordination device, which itself can, for example, have a processing device, i.e., a microprocessor, a microchip or a microcontroller, etc., and a computer-readable data memory coupled thereto. Then, an operation or computer program can be stored in the data memory, which encodes or executes the method steps, measures or processes mentioned in conjunction with the method according to the invention and / or corresponding control instructions. Then, the operation or computer program can be executed by means of the processing device in order to cause the execution of the corresponding method. The display device may include, for example, a screen in the instrument cluster and / or on the dashboard or center console of the motor vehicle, a head-up display, an infotainment screen, a screen of a navigation system, etc. A mobile electronic device coupled to the motor vehicle, such as a smartphone or tablet computer, etc., may also be used as a display device or part thereof.

[0026] Further features of the invention are apparent from the claims, the drawings and the description of the drawings. The features and feature combinations mentioned above in the description of the drawings and the features and feature combinations mentioned below in the description of the drawings and / or shown individually in the drawings can be used not only in the respectively given combination but also in other combinations or individually without departing from the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawing shows in its single figure a schematic illustration of a motor vehicle having a plurality of camera-based assistance systems which are provided for the coordinated display of corresponding camera images. DETAILED DESCRIPTION

[0028] Nowadays, vehicles can have a plurality of different assistance functions, which are also based on cameras. When switching directly between such camera-based assistance functions, which are based on different camera image data, undesirable sudden changes in image and / or display properties, such as brightness, color rendering, contrast, etc., can occur. This problem can occur or be particularly pronounced when camera image data from a camera are used for different assistance functions that are different from one another, originate from different manufacturers, or are at least not coordinated with one another.

[0029] To solve this problem, Figure 1 An exemplary schematic diagram of a motor vehicle 10 is shown which is equipped with a plurality of camera-based assistance systems. In the present case, these are, for example, a driving assistance system 12 and a parking assistance system 14. The driving assistance system 12 can be provided, for example, to detect the vehicle surroundings ahead in the direction of travel and to display corresponding navigation instructions, for example in a head-up display or the like. For this purpose, the driving assistance system 12 here comprises a front navigation camera 16. The front navigation camera 16 can be arranged, for example, on a windshield 18 of the motor vehicle 10 or behind the windshield.

[0030] The parking assistance system 14 can be configured to support a panoramic view during parking or maneuvering maneuvers. To this end, the parking assistance system 14 can include a plurality of distributed surround view or panoramic cameras 20. For example, such panoramic cameras 20 are arranged here in the area of ​​rearview mirrors, at the front and rear of the motor vehicle 10.

[0031] The assistance systems 12, 14 can each process, for example by means of corresponding image signal processing devices, the camera image data recorded by means of their cameras 16, 20 and control or regulate their respective cameras 16, 20, for example, depending on a driver request of the motor vehicle 10, the respective surroundings or recording conditions, etc. For this purpose, the assistance systems 12, 14 here each have, for example, a processor 22 and a computer-readable data memory 24 coupled thereto.

[0032] In order to display the corresponding camera image data of the various assistance systems 12 , 14 , the motor vehicle 10 has here at least one display device 26 .

[0033] The different cameras 16 , 20 are located at different positions with different viewing or recording directions and may also use at least partially different optics, sensors, ISPs, etc. However, a coordinated, uniform image should be presented to the driver of the motor vehicle 10 or the respective vehicle occupant with all displayed assistance functions, in particular independently of whether the same display device 26 or different display devices 26 are used for displaying the camera image data of the different assistance systems 12 , 14 .

[0034] For this purpose, a corresponding coordination of the predetermined images and / or display characteristics of the camera image data of the cameras 16, 20 of the different assistance systems 12, 14 is provided. This is performed here, for example, by a central coordination device 28. The coordination device 28 can be designed as a separate device coupled to the assistance systems 12, 14 and then, for example, has a processor 22 and a data memory 24. Likewise, the coordination device 28 can be integrated into one or more of the assistance systems 12, 14 and / or the display device 26 or be realized or implemented as a corresponding distributed system.

[0035] In order to coordinate the camera image data or their image and / or display properties when displayed by means of the display device 26, the corresponding overall system, in particular the coordination device 28, can use overlapping images or recording areas of different cameras 16, 20. For the sake of a clear explanation, some recording areas of different cameras 16, 20 and some resulting overlapping areas 30 of different recording areas in the vehicle surroundings around the motor vehicle 10 are schematically shown here. Based on these overlapping areas 30 or the camera image data recorded there or the conditions present there or relevant for recording or display, the system, i.e., for example, the coordination device 28, can calculate the global ambient brightness and the global color temperature and / or one or more other or additional parameters or variables.

[0036] Based on this, the exposure control or exposure regulation and / or image signal processing of the individual cameras 16, 20 or the assistance systems 12, 14 can then be regulated or controlled. This can be done in such a way that when displaying the different camera image data by means of the display device 26, a coordinated image or presentation is generated on all cameras 16, 20 and the assistance systems 12, 14, that is, a uniform image or presentation with respect to their image or display properties. For this purpose, the assistance systems 12, 14 and / or the coordination device 28 can, for example, use a predefined global image statistics model or a common reference point in the surroundings of the respective vehicle, for example for their camera control loops, that is, their camera control or camera control loops and / or for corresponding dynamic post-processing processes and / or corresponding dynamic adjustment of corresponding ISP parameterizations, etc. Thus, important image properties, such as brightness and color rendering, can be uniformly adjusted.

[0037] Overall, the described example shows how a system for the coordinated recording and display of camera images can be implemented with the aid of various, in particular different, cameras in a vehicle.

[0038] Reference numerals list

[0039] 10 Motor Vehicles

[0040] 12 Driving assistance systems

[0041] 14 Parking Assist System

[0042] 16 front navigation camera

[0043] 18 Windshield

[0044] 20 panoramic cameras

[0045] 22 processors

[0046] 24 data memory

[0047] 26 Display device

[0048] 28 coordination device

[0049] 30 Overlapping Areas

Claims

1. A method for making a vehicle's surroundings recognizable to a vehicle occupant in a motor vehicle (10), wherein: - recording corresponding camera image data of the vehicle surroundings by means of a plurality of different assistance systems (12, 14) of the motor vehicle (10), each comprising at least one camera (16, 20), - carrying out a coordination with respect to predetermined image properties and / or display properties in order to display different camera image data in a similar manner by means of at least one display device (26) of the motor vehicle (10), and The camera image data of the different assistance systems (12, 14) respectively requested for display by means of the at least one display device (26) are correspondingly coordinated and displayed similarly.

2. The method according to claim 1, It is characterized in that The camera image data are recorded by means of cameras (16, 20) of the different assistance systems (12, 14), which are located at different positions of the motor vehicle (10) and / or are oriented in different directions.

3. The method according to any one of the preceding claims, It is characterized in that To record the camera image data, cameras (16, 20) are used which differ from one another in at least one hardware property and / or software property.

4. The method according to any one of the preceding claims, It is characterized in that The different assistance systems (12, 14) include a first assistance system (12) for supporting a continuous driving operation of the motor vehicle (10) and a second assistance system (14) for supporting a parking operation or a maneuvering operation of the motor vehicle (10).

5. The method according to claim 4, It is characterized in that The first assistance system (12) is configured to provide an AR function for navigation, and the second assistance system (14) is configured to provide a camera-based presentation of the surrounding environment for parking maneuvers or maneuvering maneuvers.

6. The method according to any one of the preceding claims, It is characterized in that The image characteristics and / or display characteristics include at least one of the following characteristics: brightness, color rendering, color space, color temperature, contrast.

7. The method according to any one of the preceding claims, It is characterized in that For the coordination, at least one predefined variable is taken into account in the individual adjustment of each of the cameras (16, 20), the at least one predefined variable being influenced by one or more further cameras (20, 16).

8. The method according to any one of the preceding claims, It is characterized in that For the coordination, a uniform ambient brightness and / or a uniform color temperature is determined based on an overlap region (30) in which the recording areas of at least two cameras (16, 20) of different assistance systems (12, 14) overlap, and the uniform ambient brightness and / or the uniform color temperature are used for the coordination of the image properties and / or display properties, in particular for exposure control of the individual cameras (16, 20).

9. The method according to any one of the preceding claims, It is characterized in that For the coordination, the individual cameras (16, 20) are uniformly adjusted based on a predefined uniform image statistics model and / or a uniform reference point in the surroundings of the respective vehicle.

10. A motor vehicle (10) having a plurality of different assistance systems (12, 14) and at least one display device (26), the plurality of different assistance systems each comprising at least one camera (16, 20), wherein the motor vehicle (10) is configured to display camera image data captured by cameras (16, 20) of different assistance systems (12, 14) in a coordinated manner on the at least one display device (26) by means of a method according to any of the preceding claims.

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