Native-Format Video Annotation for Online Course Feedback
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Solution Overview
Problem
Existing multimedia-based education systems lack the ability to efficiently integrate interactive feedback and annotations directly within multimedia content without requiring additional plug-ins or specialized software, limiting device compatibility and usability.
Innovation Solution
A system comprising a student and instructor terminal, connected via a content server, allows for real-time multimedia editing and annotation of uploaded video or image data, generating augmented files in native formats compatible with various devices, using on-screen controls and browser capability detection to ensure seamless display across different terminals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If annotations are integrated directly within multimedia content without additional plug-ins, then device compatibility and usability are improved, but system complexity increases
Solution Approach 1:
The patent merges annotations and multimedia content into a single integrated file format. The annotation data is embedded within the video file structure itself, allowing standard web browsers to display both the video and annotations natively without requiring additional plug-ins or specialized software, thus improving device compatibility while managing system complexity through integration
Solution Approach 2:
The patent creates a universal video file format that can be displayed across multiple devices and platforms (mobile phones, tablets, personal computers, web browsers) without requiring device-specific software. The augmented video file serves multiple functions: it contains both the original video content and embedded annotations, making it universally compatible with standard video players and web browsers
2Adaptability or versatility
If multiple augmented video files are generated in different formats and resolutions, then adaptability to different user terminals is improved, but processing time and server load increase
Solution Approach 1:
The patent generates multiple augmented video files in different formats and resolutions in advance, before they are actually needed. These pre-generated files are stored on the server, so when a student terminal requests a video, the server can immediately serve the appropriate pre-processed file without waiting for real-time conversion, thus reducing processing time and latency
Solution Approach 2:
The patent implements a dynamic file generation approach where the system can generate augmented video files on-the-fly upon request from student terminals. The server detects terminal capabilities (screen resolution, aspect ratio, video format support) and dynamically generates or selects the most appropriate video format, balancing processing time with compatibility requirements
Data Source
AI summary
The system described in this document consists of a student terminal, an instructor terminal, and a content server connected through a wide area network. The content server contains course content multimedia. which is downloaded and displayed on the student terminal's digital display. During the course. the server can receive and store upload data from the student terminal. which may include images or videos. This upload data is then made available to the instructor terminal. The instructor terminal has a multimedia editing user interface that displays the upload data and allows the instructor to add markup data at specific XY coordinates on the screen. The student terminal can display the upload data with the added markup. The system is designed to regenerate the augmented video in native format to allows the student terminal to download and display the augmented video without requiring additional plug-ins or software.