EP4427193A1 - Verfahren und system zum festlegen der position und ausrichtung einer virtuellen kamera eines umfeldbeobachtungssystems - Google Patents
Verfahren und system zum festlegen der position und ausrichtung einer virtuellen kamera eines umfeldbeobachtungssystemsInfo
- Publication number
- EP4427193A1 EP4427193A1 EP22793670.5A EP22793670A EP4427193A1 EP 4427193 A1 EP4427193 A1 EP 4427193A1 EP 22793670 A EP22793670 A EP 22793670A EP 4427193 A1 EP4427193 A1 EP 4427193A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- information
- vehicle
- vehicle environment
- stored
- environment information
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/70—Determining position or orientation of objects or cameras
- G06T7/73—Determining position or orientation of objects or cameras using feature-based methods
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30244—Camera pose
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30248—Vehicle exterior or interior
- G06T2207/30252—Vehicle exterior; Vicinity of vehicle
- G06T2207/30264—Parking
Definitions
- the invention relates to the field of vehicle surroundings monitoring systems.
- the invention relates to a method and a system for determining the position and alignment of a virtual camera of an area monitoring system.
- Surroundings monitoring systems in vehicles are known in principle.
- surroundings monitoring systems are known which enable a three-dimensional, perspective 360° all-round view around the vehicle, so-called 3D surround view systems.
- the image information from multiple cameras is linked to form an all-round view and mapped onto a three-dimensional surface in order to obtain a three-dimensional perspective view.
- the spatially perspective representation of the surroundings of the vehicle can be done from different perspectives.
- the position and orientation of a virtual camera i.e. the position and line of sight from which a virtual viewer sees the scene, can be changed so that different areas of the vehicle's surroundings can be viewed.
- the position and orientation of the virtual camera can be selected, for example, in such a way that both a surrounding area and the vehicle can be seen in this surrounding area.
- the position and orientation of the virtual camera must be selected by the user depending on the situation in order to be able to display a relevant area on a display unit of the vehicle.
- the vehicle user is distracted from controlling the vehicle, which is perceived as disadvantageous and can lead to accidents. Proceeding from this, it is the object of the invention to specify a method that enables the position and orientation of a virtual camera of a surroundings monitoring system to be determined automatically.
- a method for determining the position and orientation of a virtual camera of an area monitoring system is disclosed. Based on this virtual camera position and camera orientation, the environmental information of a vehicle is displayed on a display unit of the vehicle. In other words, the perspective from which the environmental information is viewed is defined by determining the position and orientation of a virtual camera.
- the procedure comprises the following steps:
- the vehicle environment is recorded using a plurality of cameras of the vehicle and current vehicle environment information is generated based on the information from the cameras.
- the image information provided by the cameras is linked to one another in such a way that it enables a 360° all-round view of the current vehicle environment.
- a storage unit is provided in which several data sets are stored.
- the data records each include stored information about the surroundings of the vehicle, which was recorded using a number of cameras in the vehicle.
- the data sets each include information on the virtual camera position and camera orientation, so that stored vehicle environment information is assigned to the virtual camera position and camera orientation via the respective data set.
- the data sets are preferably generated by the driver in driving situations by storing a selected virtual camera position and camera orientation together with the vehicle environment information.
- the currently detected vehicle environment information is compared with the vehicle environment information stored in the memory unit of at least one data set.
- At least one similarity parameter is then determined for at least one data set.
- the similarity parameter indicates in each case the degree of similarity of the currently recorded vehicle surroundings information to the stored vehicle surroundings information of the respective data set.
- the similarity parameter is compared to a threshold. If the similarity parameter is greater than a predetermined threshold value, information about the virtual camera position and camera orientation of the data record that contains the stored information about the surroundings of the vehicle is read out. In addition, the virtual camera position and the camera orientation is determined based on the read out information on the virtual camera position and camera orientation, ie the environment information is displayed from a perspective that is defined by the read out information about the virtual camera position and camera orientation.
- the method has the technical advantage that the environment monitoring system can automatically select a virtual camera position and virtual camera orientation for vehicle surroundings where a virtual camera position and virtual camera orientation have already been defined in the past and based on the virtual camera position and virtual camera orientation the representation of the vehicle environment the display unit of the vehicle.
- the environment monitoring system can automatically select a virtual camera position and virtual camera orientation for vehicle surroundings where a virtual camera position and virtual camera orientation have already been defined in the past and based on the virtual camera position and virtual camera orientation the representation of the vehicle environment the display unit of the vehicle.
- the comparison of the current vehicle environment information with the stored vehicle environment information includes a determination of image similarities and a comparison of image features between the current vehicle environment information and the stored vehicle environment information. In this way, image processing can be used to determine whether the vehicle is in a position for which information on the virtual camera position and virtual camera orientation has already been stored.
- multiple similarity parameters are determined for multiple different data sets.
- the maximum similarity parameter is determined, which shows the greatest agreement between the current Vehicle environment information and the stored vehicle environment information indexed.
- the maximum similarity parameter is then used for the threshold value comparison.
- the information on the virtual camera position and camera orientation of that data set that contains the stored vehicle environment information that led to the maximum similarity parameter is read out.
- the vehicle surroundings information of several datasets can be examined and that dataset can be used to determine the virtual camera position and virtual camera orientation whose stored vehicle surroundings information has the greatest correspondence or similarity with the current vehicle surroundings information.
- the data sets each have position-related environmental information.
- comparing the current vehicle environment information with the stored vehicle environment information, determining the at least one similarity parameter and comparing the similarity parameter with the threshold value it is determined whether the vehicle is in a vehicle position for which a virtual camera position and a virtual camera orientation have already been defined.
- the camera-based environment detection and the comparison with known environment information is used to determine whether there is a match with a known vehicle environment for which a viewing perspective has already been defined in the past.
- the vehicle has a sensor-based position determination system, for example a GPS-based position determination system.
- the records point in each case position data that were provided by the position determination system in the past.
- the position data indicate the geographic position at which the respective stored information about the surroundings of the vehicle was recorded.
- the position data are, for example, geographic coordinates of a global coordinate system.
- position information is determined using the sensor-based position determination system. This position information is compared with the position data stored in the data sets. By comparing the position information with the position data stored in the data sets, the data sets are restricted in terms of which data sets or stored vehicle environment information contained in the respective data sets a similarity parameter has to be determined for.
- a sensor-based position determination system has an inaccuracy or fuzziness in the position determination that does not enable an exact position determination. The inaccuracy or fuzziness is typically in the range of a few meters.
- the sensor-based position determination system cannot be used to determine the exact position of the vehicle, but it is possible to use the sensor-based position determination system to support the visual position determination, which is based on the stored data sets, to the effect that the current vehicle environment information is compared with the stored information Vehicle environment information on the relevant data sets can be reduced, which were recorded in the area of the current vehicle position. As a result, the computing effort for the comparison can be significantly reduced.
- a computing unit of the vehicle uses the information provided by the cameras to generate three-dimensional environmental information based on the virtual camera position and the camera orientation, which is displayed on the vehicle's display unit as spatially perspective environmental information.
- the virtual camera position and the camera orientation specify the perspective from which the environmental information is viewed and the sector of the environmental information displayed on the display unit.
- the spatially perspective environmental information includes a perspective view of the vehicle itself of the vehicle in the environment. This enables better driver support through the environment detection system, since the driver can better recognize how the vehicle is positioned relative to the environment.
- the invention relates to a system for determining the position and alignment of a virtual camera of an area monitoring system.
- the system includes several cameras distributed around a vehicle, a computing unit for processing the information provided by the cameras be, a memory unit and a display unit, which is designed to display information about the vehicle's surroundings.
- the processing unit is configured to perform the following steps:
- the data sets comprising information about the virtual camera position and camera orientation that is stored in each case and that has been recorded by means of a plurality of cameras of the vehicle, and this stored information about the vehicle environment;
- the similarity parameter in each case indicating the degree of similarity of the current vehicle environment information to the stored vehicle environment information of the respective data set;
- the computing unit is designed to compare the current vehicle environment information with the stored vehicle environment information to determine image similarities and to compare image features between the current vehicle environment information and the stored vehicle environment information. In this way, image processing can be used to determine whether the vehicle is in a position for which information on the virtual camera position and virtual camera orientation has already been stored.
- the computing unit is designed to determine a plurality of similarity parameters for a plurality of different data sets, to determine the maximum similarity parameter that indicates the greatest match between the current vehicle environment information and the stored vehicle environment information, to use the maximum similarity parameter for the threshold value comparison and the information to read out the virtual camera position and camera orientation of the data set that contains the stored vehicle environment information that led to the maximum similarity parameter.
- the vehicle surroundings information of several datasets can be examined and that dataset can be used to determine the virtual camera position and virtual camera orientation whose stored vehicle surroundings information has the greatest correspondence or similarity with the current vehicle surroundings information.
- the vehicle has a sensor-based position determination system.
- the processing unit is configured to date in the data records
- To store position determination system provided position data that indicate the geographic position at which the respective stored vehicle environment information was detected.
- the position data indicate the geographic position at which the respective stored information about the surroundings of the vehicle was recorded.
- the position data are, for example, geographic coordinates of a global coordinate system. It is thus possible to use the current position information from the position determination system to assess the relevance of data sets without having to compare the current vehicle environment information with the stored vehicle environment information.
- the sensor-based position determination system is designed to determine geographic position information.
- the processing unit is configured to compare the geographical position information with the position data stored in the data sets and to restrict the data sets for which a similarity parameter is determined in each case by comparing the position information with the position data stored in the data sets.
- the computing unit is configured to generate three-dimensional environmental information from the information provided by the cameras based on the virtual camera position and the camera orientation, which is displayed on the vehicle's display unit as spatially perspective environmental information.
- the environment information can be displayed naturally and user-friendly by the environment detection system
- the computing unit is configured to display a perspective view of the vehicle itself in the spatially perspective environmental information. This enables better driver support through the environment detection system, since the driver can better recognize how the vehicle is positioned relative to the environment.
- FIG. 1 shows an example of a schematic plan view of a vehicle that has a system for displaying information about the surroundings on a display unit;
- Fig. 2 an example of the representation of a hemisphere as a 3D bowl on which
- Surrounding information in the area surrounding the vehicle be mapped in order to be able to display the environment information in perspective;
- FIG. 3 shows an example of a schematic block diagram of a system for determining the position and alignment of a virtual camera for the perspective display of environmental information in the area surrounding the vehicle;
- FIG. 4 shows a flowchart that explains the steps of the method for determining the position and orientation of a virtual camera for the perspective display of information surrounding the vehicle.
- FIG. 1 shows a vehicle 1 by way of example and schematically, which has a system for the three-dimensional display of the area surrounding the vehicle 1 on a display unit 2, also referred to below as a 3D surround view system.
- the display unit 2 is provided in particular in the vehicle interior and is used to support the driver during driving maneuvers, for example when reversing or parking in a parking space.
- the vehicle 1 has a plurality of cameras 3 which are provided on the outside of the vehicle 1 and distributed around the circumference of the vehicle 1 .
- the vehicle 1 can have a front camera, a rear camera and at least one side camera on each side.
- the cameras 3 are preferably arranged and configured in such a way that the combination of the images provided by the respective cameras 3 enables a 360° display of the area surrounding the vehicle 1 .
- the vehicle 1 is preferably designed to use the image information provided by the at least two cameras 3 to generate three-dimensional environmental information that is displayed on the display unit 2 as spatially perspective environmental information.
- FIG. 2 shows an example of a perspective representation of the three-dimensional space in the area surrounding vehicle 1.
- a 3D bowl for example.
- spatially perspective environmental information can be calculated by the computing unit 5 provided on the vehicle.
- the vehicle 1 itself or its contour is preferably recognizable.
- this type of perspective all-round view enables perspective viewing of the area surrounding vehicle 1 from a specific reference point or viewing point, which is referred to below as the camera position.
- the camera position can be varied, i.e. the virtual position from which vehicle 1 and its surroundings are viewed can be changed (virtual movement in the 3D bowl). This achieves a more realistic representation of the area surrounding vehicle 1 .
- the camera orientation can be changed from a fixed camera position, i.e. the angle at which the vehicle 1 or the area around the vehicle 1 is viewed from the camera position.
- the vehicle 1 is designed to automatically determine the camera position and the camera orientation in that the vehicle 1 has a visual environment recognition system that is configured to determine whether the vehicle 1 is currently in a position for which a camera position and one Camera orientation specified by the vehicle user.
- the visual environment recognition system uses the image information provided by the cameras 3, generates current vehicle environment information from this and compares this with stored vehicle environment information, on which the vehicle user has already defined a camera position and a camera alignment.
- the vehicle comprises a computing unit 5, by means of which the camera position and the camera orientation are automatically determined.
- 3 shows, in an exemplary schematic block diagram, the structure of the system for automatically determining the camera position and the camera orientation.
- a processing unit of the vehicle 5 implements, for example, a visual environment recognition system 7 and a 3D surround view system 8.
- the environment recognition system 7 is coupled to the cameras 3 of the vehicle 1 and receives image information from them.
- the image information from the individual cameras 3 is then combined and further processed into current information about the surroundings of the vehicle.
- the image information from the individual cameras 3 can be linked to one another in such a way that they add up to a 360° all-round view.
- the environment recognition system 7 is coupled to a storage unit 4 .
- the storage unit 4 is designed to store one or preferably a plurality of data sets.
- a data set includes information about the surroundings of the vehicle that was determined at a past point in time based on the image information from the cameras 3 .
- the vehicle surroundings information can in particular also have been obtained from the surroundings recognition system 7 by combining image information from a number of cameras 3 .
- the data records each provide information on virtual camera position and virtual camera alignment that have already been used by a vehicle user in the current vehicle environment.
- the storage unit 4 is used to store user-related virtual camera position and virtual camera orientation information at specific locations that are visited several times by the vehicle user, for example.
- the environment recognition system 7 is configured to detect, by comparing the currently detected vehicle environment information with stored vehicle environment information that is stored in the data sets in the memory unit 4 of the vehicle 1, whether the vehicle 1 is in a position for which a virtual Camera position and a camera orientation was determined by the vehicle user.
- Vehicle environment information compared with the stored vehicle environment information by image similarities and / or feature matches are determined. Based on the comparison of the captured vehicle environment information with the stored vehicle environment information, a similarity parameter is determined, which indicates the probability that the currently captured vehicle environment information was recorded from the same vehicle position as the stored vehicle environment information. If the similarity parameter exceeds a predetermined threshold value, it is assumed that the current vehicle position is the same position at which the stored vehicle environment information was recorded. In this case, the information on the virtual camera position and camera orientation assigned to the stored vehicle environment information is read out from the storage unit 4 and the virtual camera position and the virtual camera position are used for this purpose Set camera orientation based on the current vehicle position.
- the virtual camera position read out and the camera orientation are transferred in particular to the 3D surround view system 8 which, based thereon, causes the current vehicle environment information to be displayed on the display unit 2 of the vehicle 1 .
- vehicle 1 has a sensor-based position determination system 6 .
- the sensor-based position determination system 6 can be a satellite-protected GPS system (GPS: Global Positioning System), for example.
- GPS Global Positioning System
- Position determination system 6 makes it possible to determine position information of vehicle 1 .
- This position information is in particular a coordinate in a global coordinate system that indicates where the vehicle is currently located.
- the position information can be used to support the visual position determination, which is based on pictorial environmental information.
- a restriction can be made on data sets that are to be examined with regard to a match between current vehicle environment information and stored vehicle environment information.
- the data sets can also have position information that was obtained by the position determination system 6 .
- the data records can be determined which originate from positions in the vicinity of the current position of the vehicle 1 and only a comparison of the stored ones can be carried out Vehicle surroundings information of those data sets with the current vehicle surroundings information that were recorded at a position that is close to the current position of the vehicle 1 .
- the data sets stored in the storage unit 4 are preferably assigned to a profile of a vehicle user. This makes it possible to store the position and orientation of the virtual camera depending on the vehicle user and then to use it when determining the position and orientation of the virtual camera depending on the current user profile.
- FIG. 4 shows a block diagram illustrating the steps of the method for determining the position and orientation of the virtual camera.
- the vehicle environment is captured using a plurality of cameras of the vehicle and current vehicle environment information is generated based on the information from the cameras (S10).
- the data records each include stored information about the surroundings of the vehicle, which was recorded using a number of cameras in the vehicle.
- the data records also include information about the virtual camera position and camera orientation, which is associated with this stored information about the surroundings of the vehicle (S11).
- the current information surrounding the vehicle is then compared with the stored information surrounding the vehicle of at least one data set (S12).
- At least one similarity parameter is then determined for at least one data set.
- the similarity parameter indicates in each case the degree of similarity of the current vehicle surroundings information to the stored vehicle surroundings information of the respective data set (S13).
- the similarity parameter is greater than a predetermined threshold value
- information about the virtual camera position and camera orientation of the data record that contains the stored information about the surroundings of the vehicle is read out. Based on the read virtual camera position and camera orientation information, the virtual camera position and camera orientation are set (S14).
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- Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
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- Closed-Circuit Television Systems (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021212445.3A DE102021212445A1 (de) | 2021-11-04 | 2021-11-04 | Verfahren und System zum Festlegen der Position und Ausrichtung einer virtuellen Kamera eines Umfeldbeobachtungssystems |
| PCT/DE2022/200234 WO2023078514A1 (de) | 2021-11-04 | 2022-10-12 | Verfahren und system zum festlegen der position und ausrichtung einer virtuellen kamera eines umfeldbeobachtungssystems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4427193A1 true EP4427193A1 (de) | 2024-09-11 |
Family
ID=83995483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22793670.5A Pending EP4427193A1 (de) | 2021-11-04 | 2022-10-12 | Verfahren und system zum festlegen der position und ausrichtung einer virtuellen kamera eines umfeldbeobachtungssystems |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP4427193A1 (de) |
| JP (1) | JP7701562B2 (de) |
| CN (1) | CN118176523A (de) |
| DE (1) | DE102021212445A1 (de) |
| WO (1) | WO2023078514A1 (de) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015206477A1 (de) | 2015-04-10 | 2016-10-13 | Robert Bosch Gmbh | Verfahren zur Darstellung einer Fahrzeugumgebung eines Fahrzeuges |
| WO2017192144A1 (en) * | 2016-05-05 | 2017-11-09 | Harman International Industries, Incorporated | Systems and methods for driver assistance |
| US20180152628A1 (en) | 2016-11-30 | 2018-05-31 | Waymo Llc | Camera peek into turn |
| US10268201B2 (en) | 2017-02-28 | 2019-04-23 | Mitsubishi Electric Research Laboratories, Inc. | Vehicle automated parking system and method |
| US11287879B2 (en) | 2017-08-25 | 2022-03-29 | Honda Motor Co., Ltd. | Display control device, display control method, and program for display based on travel conditions |
| DE102018100211A1 (de) | 2018-01-08 | 2019-07-11 | Connaught Electronics Ltd. | Verfahren zum Erzeugen einer Darstellung einer Umgebung durch Verschieben einer virtuellen Kamera in Richtung eines Innenspiegels eines Fahrzeugs; sowie Kameraeinrichtung |
| KR102132823B1 (ko) * | 2018-12-04 | 2020-07-10 | (주)캠시스 | 어라운드 뷰 모니터링 시스템 및 가용 주차 공간 검출 방법 |
-
2021
- 2021-11-04 DE DE102021212445.3A patent/DE102021212445A1/de active Pending
-
2022
- 2022-10-12 WO PCT/DE2022/200234 patent/WO2023078514A1/de not_active Ceased
- 2022-10-12 JP JP2024521287A patent/JP7701562B2/ja active Active
- 2022-10-12 EP EP22793670.5A patent/EP4427193A1/de active Pending
- 2022-10-12 CN CN202280073496.8A patent/CN118176523A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102021212445A1 (de) | 2023-05-04 |
| WO2023078514A1 (de) | 2023-05-11 |
| JP2024536453A (ja) | 2024-10-04 |
| JP7701562B2 (ja) | 2025-07-01 |
| CN118176523A (zh) | 2024-06-11 |
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Owner name: AUMOVIO AUTONOMOUS MOBILITY GERMANY GMBH |