Vehicle Rear Camera Image Processing for Lighting Artifact Reduction
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Solution Overview
Problem
When reversing a vehicle, drivers face challenges in seeing objects in blind areas due to light reflections from rearview mirror lighting, leading to potential collisions and safety issues, as existing rear monitoring systems struggle to exclude lighting artifacts from camera images.
Innovation Solution
A vehicle assistance apparatus with a gear to switch operation modes, a camera to capture images, a processor to decrease the gain of lighting-related colors in RGB images, and an output unit to provide a clear image, effectively reducing the impact of light reflections from taillights, stop lamps, and turn signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If rear monitoring camera is used to enable driver to check blind areas, then safety is improved, but light reflections from lighting apparatus create harmful artifacts in images
Solution Approach 1:
The processor identifies and adjusts the color components corresponding to light reflections from lighting apparatus in the captured image, modifying color intensity and distribution to eliminate harmful artifacts while preserving the actual rear environment visualization
Solution Approach 2:
The system changes image processing parameters by identifying regions with lighting apparatus color characteristics and adjusting color intensity, saturation, and brightness parameters to reduce or eliminate the harmful light reflection artifacts from the image
2Illumination intensity
If lighting apparatus is turned on during reversing, then visibility is improved, but light reflections create false color information in camera images
Solution Approach 1:
The processor continuously analyzes the captured image to detect light reflection artifacts from lighting apparatus, and dynamically adjusts color parameters in real-time to compensate for the false color information while maintaining proper visibility
Solution Approach 2:
The system modifies color information by identifying and adjusting color components that correspond to light reflections, transforming false color information into accurate representations of the actual environment
Data Source
AI summary
Disclosed is an apparatus for assisting a vehicle, including: a gear mounted in a vehicle and configured to switch an operation mode into any one of a travelling mode, a parking mode, a neutral mode, and a reverse mode of the vehicle; one or more lighting devices provided in the vehicle; a camera mounted in the vehicle, and configured to obtain an image around the vehicle; a processor configured to decrease a gain of a first color in an RGB image, which is received from the camera and includes light emitted from the taillight when the operation mode is switched into the reverse mode; and an output unit configured to output the image processed by the processor.