Display Delay Measurement Using Sequential Time Image Updates
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing systems for remotely operating robots face challenges in accurately measuring the delay time between image capture and display due to overlapping time information in images, leading to inaccurate delay time measurements.
Innovation Solution
A method and system that involve repeatedly displaying an image with multiple time information items on a display device, sequentially updating these items, capturing the displayed image with an image capturing device, and measuring the delay time based on the captured images to ensure accurate time information is included in the measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single time information item is displayed in the image, then the image is simple and easy to capture, but the delay time measurement becomes inaccurate when the image is captured at the timing when the time information is updated
Solution Approach 1:
The time information is segmented into multiple items (first time information, second time information, etc.) that are displayed at different positions in the image. Each time information item updates independently at different timings, allowing the measurement system to capture at least one readable time item even when others are in transition, thereby resolving the contradiction between measurement accuracy and image simplicity.
2Productivity
If the image is captured at the timing when time information is updated, then the capture timing is optimized, but the time information becomes unreadable due to overlapping
Solution Approach 1:
Different regions of the image contain different time information items with different update characteristics. The first time information updates at one timing while the second time information updates at another timing. This local differentiation ensures that when the image capturing device captures the image, at least one time information item in a specific region remains readable and non-overlapping, preventing information loss while maintaining measurement efficiency.
3Measurement precision
If multiple time information items are displayed and updated sequentially, then the delay time measurement accuracy is improved, but the system complexity increases
Solution Approach 1:
The display controller implements periodic updates of multiple time information items in a systematic sequence. The first time information is updated at a first timing, then the second time information is updated at a second timing, creating a regular periodic pattern. This structured periodic action achieves high measurement precision through multiple time references while keeping the control system complexity manageable through systematic, repeating update cycles.
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A measurement method according to one aspect of the present disclosure is executed by a computer, and includes: a first display process (S10) of repeatedly displaying, on a first display device, a first image including a plurality of items of time information each indicating a time, while sequentially updating the plurality of items of time information one by one; a first image capturing process (S20) of generating a second image by causing a first image capturing device to capture the first image displayed on the first display device; a second display process (S30) of displaying the second image on a second display device; and a measurement process (S40) of measuring, based on the first image and the second image, a delay time from when the first image capturing device captures the first image to when the second image is displayed on the second display device.