EP4371298A1 - Kamerasystem sowie verfahren zum erzeugen einer ansicht mit einem kamerasystem - Google Patents
Kamerasystem sowie verfahren zum erzeugen einer ansicht mit einem kamerasystemInfo
- Publication number
- EP4371298A1 EP4371298A1 EP22746958.2A EP22746958A EP4371298A1 EP 4371298 A1 EP4371298 A1 EP 4371298A1 EP 22746958 A EP22746958 A EP 22746958A EP 4371298 A1 EP4371298 A1 EP 4371298A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- view
- vehicle
- trailer
- camera system
- camera
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/698—Control of cameras or camera modules for achieving an enlarged field of view, e.g. panoramic image capture
Definitions
- the present invention relates to a camera system, in particular a surround view camera system for detecting the surroundings of a vehicle, and a method for generating a view with a camera system for a vehicle with an additional vehicle (trailer or trailer), a camera system according to the invention being provided as the camera system.
- these driver assistance systems also include, in particular, surround view camera systems, which allow the vehicle environment to be displayed to the driver of the vehicle.
- surround view camera systems generally include a control device and a number of cameras which deliver real images of the vehicle environment, which are combined in particular by a data processing unit of the surround view camera system to form an image of the vehicle environment. The image of the vehicle surroundings is then displayed to the driver on a display unit (such as the display of the navigation system). In this way, the driver can be supported during a vehicle maneuver, for example when reversing the vehicle or during a parking maneuver.
- the surround view cameras are usually “fisheye cameras”, ie a camera with a fisheye lens that delivers a fisheye image.
- the undistorted fisheye images are then used to present the driver with various views of the environment, such as: B. front view, rear view, curb view and the like.
- the images can also be combined into a 360° panoramic view, allowing the driver to select the appropriate viewpoint by moving within a virtual camera scene.
- There are various functions or views such as “Bowl” or “Top View”("bird's eye view” or “top view”), in which images or textures from the surround view cameras are combined or combined into an overall view (or overall texture). .be lined up seamlessly (stitching).
- the images or textures of the surround view cameras generally have overlapping regions or overlapping areas.
- the textures from the cameras are projected to visualize a 3D virtual bowl representing the entire area around the car.
- Modern surround view camera systems can then display the views generated as a result to the driver, e.g. B. on a display, a cockpit or a navigation system.
- Generic surround view systems can nowadays usually be expanded by up to four additional or trailer cameras on the outside of an additional vehicle, in particular a trailer (trailer), if the vehicle is to be operated together with the trailer.
- a trailer tilter
- one trailer camera on the front, one trailer camera on the back, and one trailer camera on each side of the trailer Due to the increased image resolution, this can reach a considerable size when the data is transmitted to the car.
- the supported length of the cable for connecting the trailer cameras to the in-vehicle controller has some limitations.
- a possible solution is therefore to integrate a separate control unit into the trailer that collects the camera data from the trailer cameras and forwards it to the control unit in the vehicle.
- the bandwidth between the trailer's control unit and the vehicle's control unit is usually not sufficient, e.g. B. to traverse four image streams.
- DE 102016224904 A1 discloses a three-dimensional all-round vision system for a combination of a vehicle and a trailer, the trailer being attached to the vehicle in an articulated manner about a vertical axis of the vehicle by means of a straight tow bar.
- the all-round vision system includes multiple cameras of the vehicle, multiple cameras of the trailer, an image processing unit and an optical output unit.
- the image processing unit is set up to determine a first angle of rotation from an image recorded by one of the cameras of the vehicle, by which the pull rod is rotated relative to the vehicle about its vertical axis relative to a forward orientation of the vehicle.
- an image area covered by the trailer of a vehicle all-round image generated by the vehicle cameras is replaced by a corresponding image area of a trailer all-round image generated by the trailer cameras. In this way, a three-dimensional all-round image of the entire combination can be displayed on the display unit.
- the four cameras in the car are usually used and projected onto a bowl display.
- the blind spot of the cameras i.e. the area under the car, is covered and a 3D car model is rendered into the scene.
- this approach can be extended to eight cameras, including the trailer's four cameras.
- all necessary camera images for image processing are loaded into the cache.
- the cache size in embedded surround view systems is generally not large enough to process all four camera images simultaneously. However, this can lead to cache errors and increased processing time.
- US 2017341 583 A1 discloses a surround view system for a vehicle for towing trailers, in which the generation of the surround view image is carried out by merging all camera images of the vehicle and trailer in a common controller.
- EP 3318469 A1 describes a method for creating a surround view image for a vehicle with a trailer and the superimposition/joining of both depending on the alignment of the trailer.
- US Pat. No. 9,860,445 B2 describes a trailer assistance system in which two surround view images generated by stitching in two separate control units (ECU—Electronic Control Unit) are combined to form a common 2D surround view (top view/bird's eye view).
- ECU Electronic Control Unit
- the object of the present invention is therefore to provide a generic (surround view) camera system that simplifies communication between the trailer and the vehicle and improves it in a cost-effective manner and reduces the probability of errors.
- a surround view camera system for a vehicle comprises a control device, several (surround view) cameras arranged in/on the vehicle, a control device arranged in/on an auxiliary vehicle (in particular a trailer). is, and several additional or trailer cameras that are arranged in / on the additional vehicle.
- the control device generates a view based on the cameras on the vehicle or the streams/images/data from the surround view cameras, while the control device generates a view based on the additional or trailer cameras or the streams/images/data from the trailer cameras .
- a combined view is then generated from the views of the control device and the control device.
- the method according to the invention reduces the required bandwidth and also the number of images that are required in the cache at the same time, as a result of which the communication between the trailer and the vehicle is simplified and improved to a particular degree.
- the communication between the trailer and the vehicle is simplified and improved to a particular degree.
- only one image needs to be transmitted from the trailer controller to the vehicle's controller for each frame.
- each controller only has to process four camera streams at any given time, reducing memory consumption and the chances of a cache miss during processing.
- the method described can be implemented in a particularly simple and cost-effective manner and can also be retrofitted in existing systems.
- the combined view may take into account the length and/or width of the vehicle combination, i. H. Vehicle and trailer, or part of the vehicle combination. This allows the entire vehicle combination to be easily visualized in a 2D/3D representation in the vehicle and thus displayed to the driver.
- the combined view can also take into account the angle between the vehicle and the trailer. This allows the view to be generated even more precisely.
- the combined view is preferably an extension of the 3D view of the control device and/or the view of the control unit.
- the view of the control device can be transmitted from the control device to the control device and the control device can generate the combined view.
- the control unit can expediently use a virtual camera to generate the view, the position of which essentially corresponds to the position of the vehicle's camera, i. H. the rear-facing surround view camera or reversing camera.
- FIG. 6 is a simplified schematic representation of another
- Reference number 1 in FIG. 1 designates a vehicle with a control device 2 (ECU, Electronic Control Unit or ADCU, Assisted and Automated Driving Control Unit), which can access various actuators (e.g. steering, engine, brakes) of the vehicle 1 , in order to be able to carry out control processes of the vehicle 1 .
- Vehicle 1 also has a number of surround view cameras or cameras 3a-3d, a camera sensor 4 (or front camera) and a lidar sensor 5 for detecting the surroundings, which are controlled by control device 2 .
- the present invention also expressly includes configurations in which no common control device 2 is provided, but individual control devices or control units are provided for sensor control (e.g.
- B. radar or Ultrasonic sensors may be provided.
- the sensor data can then be used for environment and object recognition.
- various assistance functions such as B. parking assistants, emergency brake assistant (EBA, Electronic Brake Assist), distance following control (ACC, Adaptive Cruise Control), lane keeping control or a lane keeping assistant (LKA, Lane Keep Assist) or the like can be realized.
- EBA Electronic Brake Assist
- ACC Adaptive Cruise Control
- LKA Lane Keep Assist
- the assistance functions can also be carried out via the control device 2 or a separate control device.
- the cameras 3a-3d are part of a surround view camera system, which is preferably controlled by the control device 2 (alternatively, a separate control can be provided, for example), which provides a full 360-degree view around the entire vehicle 1 offers by combining the fields of view of the individual surround view cameras, e.g. B. 120 degrees, to form an overall view or overall picture.
- This camera system has numerous advantages in many everyday situations.
- the surround view camera system allows the driver to see different angles of the vehicle 1, e.g. B. on a display unit (not shown in Fig. 1) are displayed.
- 4 surround view cameras 3a-3d are used in this case, the z. B. are arranged in the front and stain area and on the side mirrors.
- three, six, eight, ten or more surround view cameras can also be provided. These camera views or perspectives are particularly helpful when checking the blind spot, changing lanes or parking.
- the trailer 6 comprises a control device 7 and four trailer cameras 8a-8d, the data or streams of which can be collected by the control device 7, which in turn can transmit this data to the control device 2 (e.g. wired or via radio), e.g . B. as an image or precursor thereof.
- the control device 7 for the trailer 6 is used to view the four camera images of the trailer 6 from the rear camera position (rear camera 3d) of the vehicle 1 in 3D.
- the intrinsic and extrinsic values of the camera 3d can be given to the control device 7 when starting up.
- a 3D bowl geometry or bowl 10 is generated on the control unit 7 , the position of the trailer 6 being the center of the bowl 10 .
- the four cameras 8a-8d of trailer 6 are used to texture the 3D bowl.
- the control unit 7 can also use known algorithms to cover the blind spots of the trailer's cameras 8a-8d, i. H. the area 11 under the trailer 6 and all body parts of the trailer 6, as shown in FIG.
- the floor area of the bowl 10 is enlarged (as shown in FIG. 4 by the black arrow pointing in the direction of the trailer 6) in order to accommodate the trailer 6 behind the vehicle 1 as well. After that, both the blind spot under the vehicle or area 12 and the body parts visible from the vehicle must be covered.
- the length and the angle of the T railer can be used to calculate in which direction the bowl should be widened or expanded.
- Different expansions of the bowl 10 are shown as an example in FIG. 7 (a)-(c), which were generated as a function of the length and orientation of the trailer 6 .
- the extension of the bowl 10 is shown in Fig. (b) and Fig. 7 (c) using the black arrow.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Closed-Circuit Television Systems (AREA)
- Studio Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021207558.4A DE102021207558B4 (de) | 2021-07-15 | 2021-07-15 | Kamerasystem sowie Verfahren zum Erzeugen einer 3D-Ansicht mit einem Kamerasystem |
| PCT/DE2022/200141 WO2023284920A1 (de) | 2021-07-15 | 2022-06-24 | Kamerasystem sowie verfahren zum erzeugen einer ansicht mit einem kamerasystem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4371298A1 true EP4371298A1 (de) | 2024-05-22 |
Family
ID=82694005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22746958.2A Pending EP4371298A1 (de) | 2021-07-15 | 2022-06-24 | Kamerasystem sowie verfahren zum erzeugen einer ansicht mit einem kamerasystem |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20240348749A1 (de) |
| EP (1) | EP4371298A1 (de) |
| DE (1) | DE102021207558B4 (de) |
| WO (1) | WO2023284920A1 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11858420B2 (en) * | 2021-11-29 | 2024-01-02 | Texas Instruments Incorporated | Below vehicle rendering for surround view systems |
| DE102023202306B3 (de) | 2023-03-14 | 2024-06-06 | Continental Autonomous Mobility Germany GmbH | Verfahren zum Erzeugen einer Umgebungsansicht eines Fahrzeugs, Bildaufnahmeeinrichtung und Fahrzeug |
| DE102023203322B3 (de) | 2023-04-12 | 2024-06-13 | Continental Autonomous Mobility Germany GmbH | Verfahren zum Erzeugen einer Umgebungsansicht eines Fahrzeugs, Fahrerassistenzeinrichtung, Fahrzeug und Computerprogramm |
| DE102023205965B3 (de) | 2023-06-23 | 2024-09-26 | Continental Autonomous Mobility Germany GmbH | Verfahren zum Erzeugen einer Umgebungsansicht eines Fahrzeugs, Bildaufnahmeeinrichtung und Fahrzeug |
| DE102023208357A1 (de) | 2023-08-31 | 2025-03-06 | Continental Autonomous Mobility Germany GmbH | Verfahren zur Erzeugung einer Umgebungsansicht eines Fahrzeugs |
| US20250162162A1 (en) * | 2023-11-16 | 2025-05-22 | Howe & Howe Inc. | Operating a firefighting robot by remotely displaying top-down views |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5592138B2 (ja) * | 2010-03-31 | 2014-09-17 | 富士通テン株式会社 | 画像生成装置、画像表示システム及び画像生成方法 |
| US9860445B2 (en) | 2015-06-15 | 2018-01-02 | Bendix Commercial Vehicle Systems Llc | Dual node composite image system architecture |
| US10259390B2 (en) | 2016-05-27 | 2019-04-16 | GM Global Technology Operations LLC | Systems and methods for towing vehicle and trailer with surround view imaging devices |
| EP3487172A4 (de) * | 2016-07-13 | 2019-07-10 | Sony Corporation | Bilderzeugungsvorrichtung, bilderzeugungsverfahren und programm |
| KR101859045B1 (ko) | 2016-11-02 | 2018-05-17 | 엘지전자 주식회사 | 차량용 운전 보조 장치 및 차량 |
| DE102016224904A1 (de) | 2016-12-14 | 2018-06-14 | Conti Temic Microelectronic Gmbh | Dreidimensionales Rundumsichtsystem |
| DE102019133948A1 (de) * | 2019-12-11 | 2021-06-17 | Connaught Electronics Ltd. | Verfahren zur Fahrerassistenz für eine Kombination aus einem Kraftfahrzeug und einem Anhänger |
-
2021
- 2021-07-15 DE DE102021207558.4A patent/DE102021207558B4/de active Active
-
2022
- 2022-06-24 WO PCT/DE2022/200141 patent/WO2023284920A1/de not_active Ceased
- 2022-06-24 EP EP22746958.2A patent/EP4371298A1/de active Pending
- 2022-06-24 US US18/579,735 patent/US20240348749A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US20240348749A1 (en) | 2024-10-17 |
| DE102021207558B4 (de) | 2025-09-04 |
| WO2023284920A1 (de) | 2023-01-19 |
| DE102021207558A1 (de) | 2023-01-19 |
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Owner name: AUMOVIO AUTONOMOUS MOBILITY GERMANY GMBH |