Mobile Terminal Video Recording with Embedded GPS Location Data
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Solution Overview
Problem
Conventional mobile terminals lack the capability to cooperatively record and reproduce motion pictures with location information, limiting the user's ability to capture and navigate travel sites effectively.
Innovation Solution
A method and apparatus for recording and reproducing motion pictures on mobile terminals, which involve starting video recording, acquiring and inserting location data into video frames, and reproducing the motion pictures based on current location information, using GPS data and compression formats like MPEG-1, MPEG-2, MPEG-4, and H.264.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If motion pictures are recorded using a camera module, then video data can be captured, but location information cannot be integrated into the video frames
Solution Approach 1:
The patent merges video data and location information by attaching location data to video frames during encoding. The video encoder integrates location information from the GPS module with video data from the camera module, creating unified video frames that contain both visual content and spatial coordinates. This allows the motion picture to inherently carry location information without requiring separate storage systems.
Solution Approach 2:
The video frame structure is designed to serve multiple functions simultaneously: it carries both video content and location information. The encoded video stream can be used for both visual playback and location-based services, enabling the same data structure to support diverse applications such as travel documentation, navigation, and geospatial analysis.
2Measurement precision
If location data is attached to every video frame, then complete location tracking is achieved, but data volume and processing complexity increase
Solution Approach 1:
The patent extracts location information from continuous GPS data streams and attaches only the necessary location coordinates to video frames. Rather than transmitting all raw GPS data, the system extracts relevant location information (latitude, longitude, altitude) and integrates it efficiently into the video frame structure, reducing redundant data transmission while maintaining complete location tracking capability.
3Ease of operation
If the mobile terminal reproduces motion pictures with location information, then navigation guidance can be provided, but the system cannot detect when location changes occur
Solution Approach 1:
The patent implements a feedback mechanism where the reproduced video's location information is continuously compared with current GPS data. The system detects location changes by monitoring discrepancies between the location embedded in video frames and the terminal's current location, providing real-time feedback for navigation guidance and automatically pausing playback when the user deviates from the recorded path.
Data Source
AI summary
A method and apparatus for recording and reproducing a motion picture with location information are provided. The method for reproducing the motion picture includes acquiring, when a request for playing a motion picture is detected, current location information of the mobile terminal using location data, retrieving location information included in the motion picture, comparing the current location information and the retrieved location information, and reproducing, when the current location information and the retrieved location information are substantially identical with each other, the motion picture.