Video Display System Reducing Transmission Load via Gradation Variation
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Solution Overview
Problem
Existing video display systems face challenges in maintaining high frame rates without increasing transmission and calculation loads, while preserving video quality, especially when transmitting videos with frame rates exceeding 60 fps.
Innovation Solution
A video display system that generates captured video data of a first gradation and outputs display video data of a second gradation with a lower bit number, where the gradation values for unchanged pixels are varied in the display apparatus, allowing for reduced transmission and calculation while maintaining video quality through human visual characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If a high frame rate (e.g., 960 fps) is applied to the video, then the delay in video display is reduced, but the amount of transmission and calculation increases
Solution Approach 1:
The patent applies parameter changes by converting video data from a first gradation (higher bit depth) to a second gradation (lower bit depth). This reduction in bit depth decreases the amount of data transmission and calculation required while maintaining acceptable video quality, thereby enabling high frame rate display without proportionally increasing transmission and calculation loads.
2Quantity of substance
If the gradation of video data is reduced to suppress transmission amount, then the video quality decreases
Solution Approach 1:
The patent performs parameter changes by converting video data from first gradation to second gradation, systematically reducing the bit depth parameter to decrease transmission data量 while managing the impact on video quality through controlled conversion processes.
3Manufacturing precision
If a high frame rate video is transmitted with high resolution, then the video quality is maintained, but the amount of calculation increases
Solution Approach 1:
The patent reduces calculation requirements by changing the gradation parameter from first to second gradation. This bit depth reduction decreases the computational complexity of processing high frame rate video data while preserving essential visual information needed for maintaining acceptable video quality.
Data Source
AI summary
Video display system is configured to include imaging device that sequentially outputs display video data of a second gradation having a second bit number smaller than a first bit number, based on captured video data of the first gradation having the first bit number, and display apparatus that sequentially displays a video based on the display video data from imaging device, and in display apparatus, when a plurality of frames continuous in time series are displayed based on the display video data, although a first gradation value based on the first gradation of a predetermined pixel included in the captured video data corresponding to the plurality of frames does not change in imaging device, a second gradation value based on the second gradation of the predetermined pixel included in the display video data corresponding to the plurality of frames varies.