Line-Based Image Synthesis for Vehicle Display Systems
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Solution Overview
Problem
Conventional display systems that synthesize images from multiple image-capturing apparatuses, such as those in vehicles, experience significant delays between image capture and display due to frame-based processing and data transmission through buffers, which degrades the real-time property and can be critical for safety applications.
Innovation Solution
A display system that includes a controller and image display panel, where the controller outputs vertical and horizontal synchronization signals to image-capturing apparatuses to synthesize and display image signals in units of lines, reducing the delay by synchronizing image capture and display times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If frame-based image synthesis and buffer transmission are used, then complete frame images can be synthesized and displayed, but the delay time from image capture to display increases significantly
Solution Approach 1:
The patent segments the image data processing from frame-based to line-based units. Instead of waiting to complete and buffer entire frame images before synthesis and display, the system processes, synthesizes, and displays image lines sequentially as they are captured. This segmentation eliminates the need for large frame buffers and reduces the delay time from one full frame period to a fraction thereof, while still achieving complete image synthesis through sequential line processing.
2Reliability
If image data is transmitted via frame buffer in units of frames, then complete images can be displayed, but the processing time and buffer input/output time increase the delay
Solution Approach 1:
The patent applies preliminary action by starting the display of image lines immediately after they are captured and synthesized, without waiting for the complete frame to be processed. The system begins displaying the first available image lines while continuing to capture and process subsequent lines, thereby eliminating the waiting period that would otherwise be required to complete entire frame processing before display initiation.
3Productivity
If conventional frame-based synthesis is used, then synthesized images can be displayed, but the real-time property is degraded due to multiple time delays
Solution Approach 1:
The patent implements continuous useful action by maintaining overlapping operation of image capture, line-based synthesis, and display processes. Instead of discrete frame-based batches where capture completes before synthesis begins, the system continuously captures new lines while simultaneously synthesizing and displaying previously captured lines, ensuring that all processing stages are actively working in parallel throughout the imaging period.
Data Source
AI summary
A display system includes a controller and an image display panel. The controller includes a signal transmitter configured to output at least a vertical synchronization signal to a plurality of image-capturing apparatuses; and a synthesizer configured to provide synthesized image signals in units of lines obtained by synthesizing, in units of lines, image signals in units of lines output from the respective image-capturing apparatuses at a timing corresponding to a horizontal synchronization signal formed in a predetermined cycle based on an output timing of the vertical synchronization signal. The image display panel is configured to display sequentially, in units of lines, the synthesized image signals in units of lines.


