Vehicle Camera OSD Color Segmentation and Reprogramming
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Solution Overview
Problem
Existing apparatuses for processing on-screen display (OSD) in vehicles display warning messages and guidelines with a single color, obscuring the rearview image and failing to dynamically change colors based on distance, and lack reprogrammability of camera modules.
Innovation Solution
An apparatus with a buffer unit, color determining unit, and image synthesizing unit that allows users to set different colors for warning messages, static guidelines, and dynamic guidelines based on sections, enabling continuous display without obscuring the rearview image, and a system for reprogramming camera modules by using microcontrollers and decoders to manage image information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If warning messages, static guidelines, and dynamic guidelines are displayed with a single color, then the display is simple, but the user's requirements for changing colors cannot be met and the rearview image is obscured
Solution Approach 1:
The patent divides the display content into multiple sections with different transparency levels. The image synthesizing unit segments the OSD information (warning messages, static guidelines, dynamic guidelines) and combines them with the rearview image at different transparency levels, allowing color customization while maintaining visibility of the rearview image through selective transparency control.
Solution Approach 2:
The patent applies different transparency qualities to different regions of the display. The image synthesizing unit assigns varying transparency levels to different OSD elements (e.g., higher transparency for warning messages, lower transparency for guidelines) based on their importance and position, enabling localized optimization of both information visibility and rearview image clarity.
2Loss of information
If the dynamic guideline is displayed in a single color, then the display is simple, but it cannot show different colors according to distance from the rear of the vehicle
Solution Approach 1:
The color determining unit divides the dynamic guideline into multiple sections based on distance from the rear of the vehicle. Each section is assigned a different color to represent different distance ranges, enabling visual encoding of distance information. The image synthesizing unit then integrates these color-coded sections into the final display.
Solution Approach 2:
The patent changes the color parameter of the dynamic guideline based on the distance parameter. The color determining unit maps distance values to corresponding color values, creating a visual gradient or stepped color scheme that indicates distance variations. This parameter transformation enables intuitive distance perception through color variation.
3Reliability
If OSD information is read from memory at low speed, then the system is simple, but the dynamic guideline is interrupted and cannot be continuously displayed
Solution Approach 1:
The patent implements a buffer unit that pre-loads and stores OSD information from memory before it is needed for display. This preliminary action allows the system to read data at lower speeds without causing interruptions, as the buffer provides a reservoir of pre-fetched data that can be supplied to the image synthesizing unit at the required display rate.
Solution Approach 2:
The buffer unit acts as an intermediary between memory and the image synthesizing unit. It decouples the slow memory read operation from the faster display requirements, absorbing timing variations and ensuring continuous data supply to the display pipeline without requiring high-speed memory access.
4Adaptability or versatility
If the camera module is mounted in a vehicle, then it is installed, but it cannot be reprogrammed
Solution Approach 1:
The reprogramming system uses a universal interface that allows the camera module to be reprogrammed after installation. The system includes a microcontroller that can receive programming data from external devices and update the camera module's firmware or configuration, providing post-installation adaptability without requiring specialized reprogramming hardware.
Solution Approach 2:
The microcontroller acts as an intermediary between external programming devices and the camera module's internal memory. It provides a standardized interface for data transmission and includes functionality for verifying and writing programming data, enabling flexible reprogramming while maintaining system stability through controlled access to the camera module's memory.
Data Source
AI summary
There is provided an apparatus for processing an on-screen display (OSD), the apparatus including: a buffer unit receiving first dynamic guideline image information, a color determining unit determining colors for previously divided sections included in the first dynamic guideline image information from the buffering unit, and an image synthesizing unit synthesizing second dynamic guideline image information having the colors for each of the sections, determined by the color determining unit with an image from a camera. With the apparatus for processing an OSD, a user freely sets colors of a warning message, a static guideline, and a dynamic guideline, whereby the warning message, the static guideline, and the dynamic guideline can be displayed on a screen without obscuring a rearview image. In addition, a dynamic guideline can be set as different colors according to sections divided into distances from the rear of a vehicle and an image can be continuously displayed. Further, the camera module can be reprogrammed.