Indoor Mobile Video Position Linking for Usable Location Context
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Solution Overview
Problem
Conventional technologies fail to effectively utilize video captured by mobile terminals moving in indoor environments.
Innovation Solution
A mobile terminal equipped with a position obtainer to obtain relative or absolute position information, an image capturer to capture video, and a generator to associate this information with the video, along with an information processing device to manage and utilize the captured video.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If video is captured by mobile terminal moving in indoor environment, then video availability increases, but position information accuracy deteriorates
Solution Approach 1:
The patent introduces relative position information as an intermediary to bridge the gap when absolute position information is unavailable indoors. The mobile terminal captures video and associates it with relative position data obtained through indoor positioning techniques, enabling video utilization without requiring high-precision absolute position information that cannot be obtained in indoor environments.
Solution Approach 2:
The patent segments the position information system into two distinct modes: absolute position information for outdoor environments and relative position information for indoor environments. This segmentation allows the system to select the appropriate positioning method based on the environment, maintaining video availability while managing position information accuracy expectations appropriately for each context.
2Adaptability or versatility
If additional video information is generated by associating position information, then video utility improves, but data processing complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-obtaining and storing position information (both absolute and relative) before video capture, and pre-establishing the association rules between video data and position data. The generator component is configured to automatically associate position information with video data using predetermined rules, reducing real-time processing complexity while improving video utility.
Solution Approach 2:
The patent creates a universal video data structure that can accommodate both absolute and relative position information, as well as multiple types of video data. This multi-functional framework allows the same processing pipeline to handle different positioning modes and video types, reducing overall system complexity despite the enhanced video utility.
3Reliability
If both absolute and relative position obtainers are equipped, then positioning reliability improves, but device complexity increases
Solution Approach 1:
The patent implements a dynamic positioning system where the mobile terminal can switch between absolute position obtaining (outdoor) and relative position obtaining (indoor) modes based on environmental conditions. The system dynamically selects and activates the appropriate position obtainer, maintaining positioning reliability across different environments while avoiding the need to permanently maintain both complex positioning subsystems at full capacity.
Solution Approach 2:
The patent equips the mobile terminal with both absolute and relative position obtainers in advance, but uses them selectively based on environment. This preliminary preparation ensures positioning reliability is available when needed, while the selective activation strategy manages device complexity by not continuously operating both systems at full capacity.
Data Source
AI summary
A mobile terminal 5 includes: a position obtainer 231 configured to obtain a relative position information for identifying a relative position of the mobile terminal 5 in an indoor environment; an image capturer 232 configured to capture a video; a generator 234 configured to obtain an additional video by associating the relative position information or an absolute position information obtained by using the relative position information with the video; and a video output unit 251 configured to output the additional video. Thus, the video captured by the mobile terminal moving in the indoor environment can be appropriately utilized.