15 patents in this list
Updated: February 06, 2024
This page provides information on various technological advancements and solutions that enhance the image quality of dashcams.
The image quality of dashcams plays a crucial role in capturing important details while driving. A higher image resolution ensures clearer and more detailed footage, making it easier to identify license plates, road signs, and other relevant information. This becomes particularly important in situations such as accidents, where accurate and high-quality footage can be used as evidence. Additionally, better image quality enhances the overall user experience by providing a more immersive and visually appealing view of the road.
Improving image quality in dashcams involves overcoming various technological challenges. Dashcams need to handle different lighting conditions, such as bright sunlight, low-light environments, and quickly changing lighting variations. They also need to compensate for vibrations and movements while maintaining a stable and clear image. Another challenge is managing storage requirements for high-resolution footage, as larger file sizes can quickly fill up the available memory. Balancing these factors while maintaining affordability and ease of use is a key challenge in the development of dashcam technology.
Magna Electronics Inc., 2022
Vehicle vision system with cameras that use a thermoelectric cooler to prevent image degradation at high temperatures. The cameras have a sealed housing with a thermoelectric cooler that draws heat away from the camera circuitry which reduces image sensor temperature. A heat transfer element connects the cooler to the circuit board containing the image sensor. The cooler is powered and responds to a temperature sensor to maintain optimal operating temperature.
Huajie ZENG, 2022
Enhancing image quality from vehicle cameras to improve reliability and safety of autonomous driving. It uses a GAN model trained with images from other vehicles to enhance images from the target vehicle's camera. When the target vehicle captures a low-quality image, it uses the trained GAN to enhance it.
HONDA MOTOR CO., LTD., 2022
Vehicle body structure with a camera that captures images around the vehicle, wherein a moth-eye structure is formed on the window to suppress image degradation due to internal reflections. The moth-eye structure is formed on the inner surface of the window within the camera's field of view. This reduces reflections from multiple surfaces that can create false images and degrade captured images. Attaching a selectively positioned film with the moth-eye structure to the window focuses the anti-reflection benefits within the camera's view while leaving other areas unobstructed. A support member fixed to the window surrounds the camera's field of view.
HYUNDAI MOBIS CO., LTD., 2022
Using a vehicle camera for improved parking assistance. The camera has both a wide-angle lens for parking space recognition and an integrated depth camera for obstacle detection. This allows detecting obstacles more accurately in 3D compared to just using a regular camera. By combining wide-angle and depth imaging in one camera, it provides enhanced parking assistance capability over just using traditional cameras.
SONY SEMICONDUCTOR SOLUTIONS CORPORATION, 2022
Vehicle camera system that provides high quality images while shielding direct sunlight and glare from the lens. The camera has a hood that limits the incident angle of light to the lens. It also captures two images, a high-resolution one for the rear view monitor and a smaller one for other displays. The hood shields light outside the smaller image area. This allows shielding without protruding beyond vehicle limits. The camera corrects distortion based on detected image height changes due to temperature.
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.
BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD., 2022
Smart roadside unit with high and low sensitivity cameras for improved vehicle detection accuracy. The roadside unit has two cameras with different brightness sensitivities but the same field of view. One camera captures a clear image under bright conditions and the other captures a clear image under dark conditions. The roadside unit extracts vehicle information from both images to improve accuracy in scenes with large lighting differences like tunnels.
DENSO CORPORATION, 2021
In-vehicle camera design that reduces electromagnetic noise generation without sacrificing signal quality. The camera has a conductive housing to prevent noise emitting into the vehicle. A spacer separates the flexible cable from the housing to prevent electrical contact and current flow that causes noise. The spacer lacks electromagnetic properties to avoid absorbing or reflecting signals.
Hangzhou Hikrobot Technology Co., Ltd, 2021
Device, system, and method to capture non-deformed images from a moving object like a vehicle using a line scan camera. It measures the object's speed and sets the line frequency of the camera to match, preventing image stretch or compression. A control module triggers camera capture at the matching line frequency.
Ford Global Technologies, LLC, 2021
System and method to automatically mitigate image distortion in autonomous vehicles caused by vibrations. The system uses vehicle state data, inertial measurements, and strain data from the image capture assembly to predict and correct image distortion. This allows stabilizing and enhancing the image quality from cameras on autonomous vehicles to improve perception algorithms for environment sensing and decision making.
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.
HYUNDAI MOBIS Co., Ltd., 2021
Camera assembly structure for a vehicle camera module with improved optical alignment and reliability compared to adhesive bonding. The structure uses solder-jet bonding to fix the lens and image sensor in accurate alignment after pre-assembly. The housing posts and board holes have precise clearance for solder to fill. This replaces adhesives prone to thermal deformation. The solder-jet provides fast, localized, and temperature-controlled bonding without curing issues.
DENSO CORPORATION, 2021
Reducing the resolution and distance limitations of camera modules in vehicles to allow accurate long-range object recognition. The camera module has two cameras - one wide-angle and one narrow-angle. The narrow-angle camera with the same pixel count as the wide-angle camera can recognize distant objects more clearly. The wide-angle camera captures the overall scene. The dual camera setup provides both context and detail for accurate long-range object recognition.
Magna Electronics Inc., 2021
Windshield-mounted camera for vehicles that reduces glare by using a coated glare shield. The camera is mounted behind the windshield and captures images of the road. A light-absorbing coating is applied to a smooth surface below the camera lens. This reduces reflection of glare onto the lens. The camera captures clearer images without stray light interference.
SMR Patents S.à.r.l., 2021
Imaging system for vehicles that uses transflective mirrors to capture high quality images with fewer components compared to conventional camera systems. The system has one or more lens units to focus light onto an image sensor. Transflective mirrors are placed between the lens units and sensor to reflect light perpendicularly onto the sensor. This allows using a single image sensor instead of multiple cameras while still capturing all-around views. The transflective mirrors can be switchable mirrors that can toggle between reflective and transparent states.
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