Multi-Camera Video Layout for Ultrawide Frame Utilization
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Solution Overview
Problem
Video recording systems using multiple cameras on vehicles face challenges in managing and synchronizing video data, particularly with ultrawide-angle cameras capturing circular videos, which result in unused areas and complex data synthesis when recorded in standard rectangular formats.
Innovation Solution
A video processing apparatus and method that acquires main video data from an ultrawide-angle camera and sub-video data from additional cameras, combines and arranges the sub-video data to fit into unused areas of the main video frames, generating a single moving picture file, thereby optimizing data usage and simplifying synchronization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If video data from multiple cameras is recorded separately in standard rectangular format, then each camera's video can be recorded independently, but useless areas are generated at corners and data synthesis becomes complicated
Solution Approach 1:
The patent merges video data from multiple cameras by combining sub-video data into the free areas of main video data frames. This creates a single integrated video file that utilizes the entire rectangular frame space, eliminating useless areas while maintaining independent recording capabilities during the combining process.
Solution Approach 2:
The patent transforms the video data structure by arranging multiple camera feeds in a spatial arrangement within a single frame. The main video occupies the central area while sub-videos are positioned in surrounding free areas, creating a multi-dimensional layout that efficiently uses the rectangular frame space.
2Adaptability or versatility
If video data from multiple cameras is recorded separately, then each camera operates independently, but synchronization and combination management becomes complicated
Solution Approach 1:
The patent performs preliminary combining of video data during the recording process itself. By integrating sub-video data into main video frames in real-time and generating a single combined video file, the system eliminates the need for complex post-recording synchronization and combination management.
3Ease of manufacture
If circular video from ultrawide-angle camera is recorded in rectangular format, then standard recording format is used, but four corners become useless areas
Solution Approach 1:
The patent combines circular video data from the ultrawide-angle camera with additional camera feeds, placing the circular main video in the center and arranging sub-video data from other cameras in the four corner areas. This merging approach fills the previously useless corner spaces, achieving 100% utilization of the rectangular frame while maintaining standard recording format.
Data Source
AI summary
A main video acquisition unit acquires main video data including a video area of a shape having a curved portion from a main picture-capturing unit installed at a predetermined position in a moving object. A sub-video acquisition unit acquires sub-video data from sub-picture capturing units installed at different positions in the moving object. A combiner combines video data that is generated on the basis of the sub-video data and has a shape fitting to a free area other than the video area of each frame of the main video data, and arranges the video data in the free area. A file generator generates one moving picture file based on the combined video data.