Video Playback Device Marker Image Insertion for RPU Information Loss
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Solution Overview
Problem
Existing video transmission systems, such as remote pickup units (RPU), often lose additional information associated with videos during transmission, leading to difficulties in editing and searching for specific scenes, especially in news broadcasting where timely and high-speed internet access is not available.
Innovation Solution
A system that converts additional information into a marker image, inserts it into the video, and uses a video sender to transmit both the video and marker image together, ensuring the additional information is preserved even when using RPU, which only transfers video signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If RPU is used to transmit video signals, then video transmission speed is improved, but additional information associated with the video is lost
Solution Approach 1:
The patent combines additional information with the video signal by inserting it into the vertical blanking interval (VBI) of the video signal. This merging allows the additional information to be transmitted together with the video signal through the RPU without requiring separate transmission channels, thus preventing information loss while maintaining fast video transmission.
Solution Approach 2:
The patent embeds additional information within the video signal structure by placing it in the VBI region. This nesting approach allows the additional information to be contained within the existing video transmission framework, enabling both video and additional information to be transmitted through the same RPU channel simultaneously.
2Loss of information
If additional information is transmitted separately from video, then information preservation is improved, but transmission complexity increases
Solution Approach 1:
The patent merges the transmission of video signals and additional information into a single unified transmission process. By inserting additional information into the VBI of the video signal, the system transmits both types of data through the same channel without requiring separate transmission infrastructure, thus reducing overall system complexity while preserving information.
Data Source
AI summary
A system is provided for transmitting a video played back from a video recording medium which stores the video and additional information without loss of an association between the video and the additional information even when a remote pickup unit (RPU) is employed for the transmission A video playback device plays back videos while repeatedly converting the content of an additional information file associated with a video file to be played back or ID information of the video file into a two-dimensional code, and inserting the two-dimensional code over a predetermined length before the video. A video recording device which receives a video from the video playback device detects a two-dimensional code inserted in the video, and stores the content of the two-dimensional code as an additional information file into its own recording medium in association with the video.