Wide-Angle Coverage in Dash Cam Systems
24 patents in this list
Updated:
Dashboard cameras must capture critical driving information across viewing angles exceeding 120° horizontal and 60° vertical, while maintaining resolution and clarity under variable lighting conditions. Current systems often require multiple camera units, leading to increased complexity, calibration challenges, and integration difficulties within the limited space behind vehicle windshields.
The fundamental challenge lies in balancing wide-angle coverage with optical performance while meeting strict automotive requirements for size, temperature stability, and reliability.
This page brings together solutions from recent research—including asymmetric sensor configurations, offset lens designs, temperature-compensated glass optics, and innovative housing architectures. These and other approaches demonstrate practical ways to achieve comprehensive visual coverage while maintaining image quality and meeting automotive integration requirements.
1. Vehicle Camera System with Multi-Angle Camera Housing and Optimized View Angles
Sony Group Corporation, 2023
Reducing complexity of camera systems in vehicles by using multiple cameras with optimized view angles. The cameras are mounted in a housing with one camera facing obliquely rearward and another facing forward or laterally. This allows capturing rear views without blind spots and forward/lateral views simultaneously using fewer cameras. The system can also have additional cameras with intermediate view angles. The images are displayed on a monitor, with the rear camera providing a standard rear view and the front/lateral camera providing supplemental views. External object recognition is performed on the forward/lateral view and visual effects are shown based on the recognition results. This avoids the need for multiple cameras with overlapping views.
2. Inclined Camera Body System with Opposite-End Imaging Lens and Acquisition Unit for Enhanced Depth of Field and Distortion-Free Imaging
SHANGHAI KAIMU VISION TECH CO LTD, SHANGHAI KAIMU VISION TECHNOLOGY CO LTD, 2022
A vehicle-mounted camera system with greater depth of field, no perspective distortion, and high definition compared to conventional camera systems. The system has a camera body with an inclined orientation. The image acquisition unit and imaging lens are installed at opposite ends of the inclined body. The camera body is mounted on the side of the vehicle. This configuration provides a wider field of view without wasting pixels or perspective distortion compared to tilting the camera. The system avoids perspective distortion and provides full image clarity across the field of view since the imaging lens and acquisition unit are also inclined.
3. Vehicle Camera Assembly with Offset Lens Axis for Enhanced Vertical Field of View
JAGUAR LAND ROVER LIMITED, 2022
Camera assembly for vehicles that provides wider vertical field of view to image objects above the vehicle. The camera has an offset lens axis relative to the image sensor center. This allows the lens to capture more vertical pixels on the sensor due to the offset, effectively widening the vertical field of view compared to a centered lens. This enables the camera to see objects like tall road signs above the vehicle without needing a taller vehicle hood.
4. Method for Harmonizing Color in 3D Vehicle Surround Models Using Lattice-Based Pixel Assignment from Multiple Camera Views
Robert Bosch GmbH, 2022
Method for displaying a realistic 3D model of a vehicle's surrounding area by harmonizing color information from multiple wide-angle camera views. The method uses a lattice structure to assign pixels from overlapping camera images. Color differences at lattice points are evaluated and weighted to determine a global color transformation. This transformation is then applied to adapt one camera view's colors to match the other view, providing a consistent appearance. The adapted images are used to create the 3D model with realistic color and brightness across views.
5. Vehicle Imaging System with Asymmetric Imaging Surface and Differential Resolution Regions
Panasonic Intellectual Property Management Co., Ltd., 2022
An imaging system for vehicles that provides a wide field of view while maintaining high resolution for critical areas. The system uses a single camera with an asymmetric imaging surface and optical system. The imaging surface has two regions - one with higher resolution than the other. The resolution of the center region is lower than the outer region. This allows capturing a wider field of view without increasing camera size. The lower resolution center region is offset horizontally and vertically from the view angle center. This provides a wider field of view while preserving critical resolution for important areas.
6. Vehicle-Mounted Camera with Dual-Position Rectangular Sensor for Varied Field of View Capture
Sony Semiconductor Solutions Corporation, 2022
A vehicle-mounted camera that can capture both far and near views of the surroundings in a single camera for applications like rearview mirrors and parking assistance. The camera has a lens and an imaging device with a rectangular sensor. The sensor has two positions along the in-plane direction perpendicular to the lens axis. The optical axis passes through the first position. The second position is at the center. This allows the camera to capture a wide field of view with good resolution for far objects using the first position, and a close-in view with sufficient resolution for near objects using the second position.
7. Vehicle Windshield-Mounted Camera Module with Wide Angle Lens and Light-Blocking Hood
DENSO CORPORATION, 2021
Compact camera module for vehicle windshield mounting that captures a wide angle view. The camera module includes a wide angle lens and a hood to block light outside the imaging target range. The hood design allows imaging the external environment while preventing bright light interference. The hood has an open top and side walls that extend from around the lens towards the windshield. The height of the side walls is set to avoid blocking the full angle of view.
8. Wide-Angle Vehicle Camera Lens with Dual Glass Lens Groups and Temperature-Stable Optical Path
JIANGXI LIANCHUANG ELECTRONIC CO., LTD., 2020
Wide-angle lens for vehicle cameras that enables high quality imaging and stability over a range of temperatures. The lens has a unique configuration of glass lenses that avoids the use of plastic. The lens configuration has two lens groups with negative and positive powered glass lenses in each group. The lenses are designed to maintain a stable optical path length across temperature changes.
9. Camera Surveillance System with Image Processing for Adjacent Undistorted Side View Extraction
VOLVO TRUCK CORP, 2020
Camera surveillance system for vehicles that provides an undistorted view of the side of the vehicle adjacent to the distorted wide-angle view from the rear cameras. The system uses image processing to extract an undistorted portion of the wide-angle image containing the side view, and displays it adjacent to the distorted wide-angle view on the monitor. This allows the driver to see an undistorted side view while looking forward, without needing to turn their head. The system reduces errors in distance estimation when turning by providing a more natural view of the trailer end. The undistorted side view helps the driver assess distances accurately in the critical area where they need to pay attention.
10. Camera Field of View Adjustment System with Environment-Responsive Modulation for Moving Vehicles
NANJING ADVANCED INST OF ARTIFICIAL INTELLIGENCE CO LTD, NANJING ADVANCED INSTITUTE OF ARTIFICIAL INTELLIGENCE CO LTD, 2020
Automatically adjusting the field of view of a camera on a moving vehicle to optimize image capture based on the environment. The method involves monitoring the vehicle's location and identifying when it enters an area where a wider field of view is needed, such as an intersection. The camera then transitions to a mode with a larger field of view to capture more surroundings. The field of view can be reduced again once the vehicle exits the area. This adaptive adjustment improves safety by providing better visibility when needed in high-risk locations.
11. Camera Module with Movable Image Sensor and Multi-Angle Lenses for 360° Capture
Hyundai Autron Co., Ltd., 2020
A camera module for vehicles that can capture 360° views around the vehicle using multiple lenses mounted at different angles. The module has a movable image sensor that can be positioned to match each lens's view. This allows capturing 360° images using a single sensor instead of multiple fixed cameras. The sensor movement is guided by a mechanism inside the module. The images are processed by an external unit. This provides a compact and versatile camera system for vehicle surround view and blind spot monitoring applications.
12. Vehicle Camera Module with Asymmetric Wide-Angle Lens for Enhanced Overhead Imaging
DENSO CORPORATION, 2020
Camera module for vehicles to image the external environment for applications like advanced driving assistance. The camera uses a wide angle lens to capture a large field of view, but improves compactness and prevents interference with the driver's view. The lens has an asymmetric shape with a larger upper half to aim more upward. This way, it captures more overhead traffic signals without blocking the driver's view.
13. On-Board Camera System with Housing and Leg Structure for Dashboard Integration
ISUZU MOTORS LIMITED, 2020
On-board camera that allows an occupant to see an area in front of a vehicle through the windshield from the space. The camera includes a camera body, a housing part that houses the camera body, and a leg part that extends from the housing part toward an upper surface of a dashboard of the vehicle.
14. Pivotable Camera Module with Wide Field of View for Vehicle Integration
Aptiv Technologies Limited, 2019
Adjustable video camera device for vehicles that can capture a wide field of view in front of the vehicle while allowing the camera sensor board to be mounted parallel to the vehicle. The camera module is mounted on a secondary segment of the motherboard that can pivot relative to the main segment. This allows the camera to be angled to capture a wide view while keeping the main motherboard parallel to the vehicle.
15. Compact Vehicle Camera Module with Integrated Lens, Imager, and Circuit Board Configuration for Enhanced Imaging and Thermal Management
DENSO CORPORATION, 2019
Compact vehicle camera module to avoid interference with driver view that can image a wide angle outside view without increasing size. The camera has a unique lens, imager and circuit board configuration to enhance imaging, thermal management and electromagnetic compatibility.
16. Vehicle-Mounted Surveillance System with Extendable Housing and 360-Degree Multi-Camera Configuration
Odain Brown, Sabrina Brown, 2018
Surveillance system for taking video footage of activities around a vehicle when parked. The system has a housing that extends upward from the vehicle's top surface. The housing contains multiple cameras providing 360-degree coverage. The cameras are triggered by vehicle alarm system or can work independently. The video footage can be used as evidence in criminal or civil proceedings.
17. Wide-Angle Camera System with Dynamic Region Selection for Vehicle Blind Spot Monitoring
AUTOEQUIPS TECH CO LTD, 2018
A system to improve driver visibility by capturing and displaying a specific region of interest from a wide-angle camera mounted on a vehicle. The system allows adjustment of the displayed region based on vehicle maneuvers to compensate for blind spots. The wide-angle camera captures an external view around the vehicle. An image processing device selects a local region as the development range and displays it. When the vehicle turns, the processing device adjusts the development range to follow the turn and displays the updated view. This provides dynamic, turn-compensated monitoring of blind spots around the vehicle.
18. Universal Vehicle-Compatible Stereo Camera with Adjustable Windshield Bracket and Dual Image Sensors
LG ELECTRONICS INC., 2018
Stereo camera capable of being used regardless of the type of vehicle. The camera includes a base assembly capable of being commonly used regardless of the type of vehicle, the base assembly comprising a first lens, a first image sensor for capturing a first image on the basis of incident light introduced through the first lens, a second lens, and a second image sensor for capturing a second image on the basis of incident light introduced through the second lens, a processor for processing the first and second images, and a windshield bracket comprising an attachment part adapted to windshields having different inclination angles and radii of curvature and attached thereto.
19. Vehicle Dual-Lens Camera System with Rotational Mechanism for Distortion-Free Imaging
(), 2017
Dual camera system for vehicles that provides both around view and black box recording without distortion. The system has separate lenses for around view and black box recording. A motor rotates the camera between the lenses based on vehicle conditions. This allows using a single camera to capture either an undistorted wide-angle around view image or a non-distorted black box image, depending on the situation.
20. Vehicle Camera System with Variable Resolution Across Image Angle
Conti Temic microelectronic GmbH, 2017
Driver assistance system for vehicles with cameras that have varying resolution across the image angle to balance image coverage and processing efficiency. The cameras have a fixed lens and variable resolution over the image angle. The center resolution is constant, then decreases as the angle increases, then returns to constant at the edge. This allows capturing a wide field of view with the camera while still maintaining sufficient resolution in the center. This reduced resolution in the outer areas simplifies processing by reducing the amount of data to analyze. The center resolution is essentially constant for easy interpretation. The transition area has reduced resolution to match the center. This ensures relevant details are still captured. The outer resolution is constant for simplicity. This provides a balanced tradeoff between coverage and processing by tailoring the resolution to the importance of each image area.
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