Multi-angle Video Display Apparatus Frame-by-Frame Switching
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Solution Overview
Problem
Existing video image display devices face challenges in seamless angle switching due to time lags and increased processing load, with current systems either allowing insufficient frame-by-frame control or excessive data redundancy.
Innovation Solution
A video image display apparatus that reads and displays time/angle video data frame-by-frame, allowing for real-time angle switching by correlating time and angle identification information, and implementing angle switching instructions within an instruction coordinate system to minimize processing load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If angle switching is performed by TS or key frame unit, then data size is reduced through compression, but angle switching precision deteriorates and time lag increases
Solution Approach 1:
The video data is segmented into individual frames with unique time codes, allowing angle switching to occur at the frame level rather than at TS or key frame boundaries. This segmentation enables precise angle switching while maintaining compression efficiency by only storing necessary frame data.
Solution Approach 2:
All video frames from multiple angles are pre-coded and stored with unique time codes before playback. This preliminary encoding allows the display device to rapidly access and switch between angles at frame precision without real-time processing delays, resolving the contradiction between compression and switching precision.
2Measurement precision
If multiple independent video image data are reproduced concurrently, then angle switching precision is improved to frame level, but processing load increases
Solution Approach 1:
Instead of concurrently reproducing all multi-angle video data, the system extracts and displays only the single frame data corresponding to the currently selected angle at each moment. This extraction approach maintains frame-level angle switching precision while significantly reducing processing load by eliminating redundant frame reproduction.
Solution Approach 2:
The system uses time code correlation to efficiently copy and display only the necessary frame data from the pre-coded multi-angle video storage, rather than maintaining multiple independent reproduction streams. This copying mechanism reduces processing load while preserving angle switching precision.
3Ease of operation
If frame-by-frame angle switching is implemented, then angle switching smoothness is improved, but data redundancy increases
Solution Approach 1:
Multiple angle video data are merged into a single compressed data structure organized by time codes, where frames from different angles share the same time code identifiers. This merging enables frame-by-frame angle switching smoothness while avoiding data redundancy through efficient compression of the unified structure.
Data Source
AI summary
A video image display apparatus includes a processor, a memory, and a display unit wherein the memory contains instructions for causing the processor to perform operations of reading out, among from time/angle video image data, frames corresponded to time identification information and angle identification information in a frame-by-frame manner in a time order of the time identification information. The operations include causing the display unit to display the frames in the frame-by-frame manner in the time order of the time identification information; and inputting an angle switching instruction for the video image. Upon successive input of the angle switching instruction, the video image display apparatus successively reads out a frame corresponded to the time identification information at a time of input and the angle identification information, and the display unit successively switches to and displays the frame.