On-vehicle Display Controller Reducing Line-of-Sight Movement
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Solution Overview
Problem
Drivers face difficulties in recognizing depth and checking surroundings, especially when using side monitors during vehicle maneuvers like parking or turning, as conventional optical side mirrors provide limited depth perception, and bird's-eye view monitors are centrally located, requiring significant line-of-sight movement.
Innovation Solution
An on-vehicle display system that acquires video data from multiple cameras, generates a bird's-eye view by performing viewpoint conversion and synthesizing processes, and displays relevant videos on side monitors when a confirmation request is detected, allowing simultaneous display of rear side and bird's-eye view videos to improve situational awareness without large line-of-sight movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a bird's-eye view monitor is arranged in a central portion on the front of the vehicle room, then the driver can recognize the relative positional relationship between the vehicle and surroundings in the depth direction, but large line-of-sight movement is required when checking both the central monitor and side monitors
Solution Approach 1:
The display system is segmented into multiple independent display units: side monitors positioned at left and right locations for lateral views, and a central monitor for bird's-eye view. Each monitor displays relevant video information independently, allowing the driver to view multiple perspectives simultaneously without moving line of sight between distant locations.
Solution Approach 2:
The system transitions from a single centralized display to a multi-dimensional display arrangement by positioning monitors at different spatial locations (left, right, and center). This spatial distribution across multiple dimensions allows the driver to access different video feeds from different physical locations without significant head movement.
2Adaptability or versatility
If side monitors are used to check rear side views during parking or turning, then the driver can monitor surroundings in side directions, but depth recognition becomes difficult compared to conventional optical side mirrors
Solution Approach 1:
The system merges multiple video feeds (side view cameras and bird's-eye view cameras) into a unified display presentation on the side monitors. By combining lateral camera views with overhead bird's-eye perspective, the monitors provide both the wide angular coverage needed for side monitoring and the depth information normally provided by optical mirrors.
Solution Approach 2:
The side monitors serve multiple functions simultaneously: they display side view camera footage for lateral situation awareness, overlay or alternate with bird's-eye view segments for depth perception, and can show synthesized composite views. This multi-functionality replaces the single function of conventional optical side mirrors while providing enhanced capabilities.
Data Source
AI summary
An on-vehicle display control device includes a video data acquiring unit that acquires video data from multiple bird's-eye view video cameras for videos of a front, a rear, a left side, and a right side of a vehicle, and video data from rear side cameras for videos of rear left-side and rear right-side views of the vehicle; a bird's-eye view video generating unit that generates a bird's-eye view video by performing a viewpoint conversion and synthesizing processes on the videos of the bird's-eye view video cameras; a confirmation request detecting unit that detects a left-right situation confirmation request; and a display controller that displays, when the confirmation request is detected, on a display in a direction of the confirmation request, the video from the rear side camera in the confirmation request direction and the video in a direction corresponding to the confirmation request direction in the bird's-eye view video.