Video Display Object Alignment Under Transfer and Processing Delay
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Solution Overview
Problem
Existing video display systems fail to account for information transfer delays and object movement when integrating videos from different sources, leading to positional deviations in displayed images.
Innovation Solution
A video display system that includes a processor for detecting objects, estimating time intervals, and correcting object positions based on the moving speed of the imaging apparatus to align objects accurately across multiple video feeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If information from another apparatus is superimposed on a camera video, then integrated video can be utilized for operation support, but positional deviation occurs due to information transfer delay and analysis process delay
Solution Approach 1:
The system performs preliminary actions by predicting the object's future position based on current movement information before the delayed information arrives. The prediction is made in advance to compensate for the known delay in information transfer and analysis, ensuring the superimposed information aligns with the actual object position when displayed.
Solution Approach 2:
The system uses feedback by continuously monitoring the object's current position and movement information, then adjusting the predicted position based on the time delay. This closed-loop approach ensures that the superimposed information remains accurate despite delays in the information processing chain.
2Measurement precision
If object position recognition is performed with recognition delay time, then predicted position can be determined, but communication delay via network is not considered causing greater deviation
Solution Approach 1:
The system performs preliminary prediction of the object's position by calculating the future position based on current movement information and the total expected delay time (including network communication delay). This advance prediction compensates for the network delay that would otherwise cause position deviation when the information is superimposed.
3Speed
If camera video is used for high-speed moving vehicle, then real-time situation awareness is achieved, but deviation in superimposed information occurs due to high-speed movement
Solution Approach 1:
The system performs preliminary prediction of object positions by calculating where objects will be when the delayed information is displayed, taking into account the vehicle's high-speed movement. This advance calculation ensures that superimposed information remains accurate despite the rapid changes in the vehicle's position and the associated processing delays.
Data Source
AI summary
In order to make it possible to correct an object position so as to reduce a deviation in position of a detected object, a video display system (100) includes: a detection section (11) for detecting an object from a first video; a time interval estimation section (12) for estimating a time interval from when the first video is taken to when the object which has been detected by the detection section (11) is superimposed on a second video; and a first position correction section (13) for correcting a position of the object in the second video based on a moving speed of an imaging apparatus that takes the second video and the time interval which has been estimated by the time interval estimation section (12).