VOD Lighting Effect Generation Using Time-Matched Metadata
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Solution Overview
Problem
Viewers watching live-streamed or recorded performance videos remotely or through VOD services lack the immersive cheering effects experienced at the actual performance venue due to the absence of synchronized lighting control.
Innovation Solution
A user device communicates with a server to acquire metadata and generate light emission control signals based on the video's content and playing time, transmitting these signals to a receiving device to produce synchronized lighting effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If portable cheering devices are used at the actual performance venue with synchronized lighting control, then immersive cheering effects are achieved, but this solution is not available to remote viewers watching through VOD or live-streamed services
Solution Approach 1:
The patent creates lighting effect data that copies the original stage lighting information from the performance venue. This copied lighting data is then transmitted to remote user devices, allowing viewers at home to reproduce the same lighting effects they would experience at the actual venue, thus resolving the contradiction between viewing experience adaptability and system complexity by using data replication rather than complex real-time control systems
Solution Approach 2:
The patent introduces lighting effect data as an intermediary element that bridges the gap between the performance venue lighting system and remote viewer devices. This intermediary data structure contains the necessary lighting effect information and can be processed by various user devices to produce synchronized lighting effects without requiring direct connection to the venue's lighting control system
2Reliability
If lighting effect data is generated and transmitted to user devices, then synchronized lighting effects are produced, but this requires coordination between multiple devices and systems
Solution Approach 1:
The patent generates lighting effect data in advance during the performance or from recorded video content, before it needs to be used by remote viewers. This preliminary generation of lighting data eliminates the need for complex real-time synchronization systems, as the lighting effects are pre-packaged with the video content and can be played back locally on user devices with minimal processing
Solution Approach 2:
The patent divides the lighting control system into independent segments: the lighting effect data generation at the venue, the data transmission through communication networks, and the local playback on user devices. This segmentation allows each component to operate independently, reducing the complexity of coordination between systems while maintaining synchronization through the embedded timing information in the lighting data
Data Source
AI summary
A user device configured to produce lighting effects of a video offered through a VOD service includes: a communication unit configured to communicate with a server and a receiving device; a memory; and a processor electrically connected to the communication unit and the memory, and the processor is configured to acquire content-related information and playing time of the video, request and receive at least one piece of metadata from the server based on the content-related information, identify first metadata corresponding to the playing time among the at least one piece of metadata, generate a light emission control signal based on the first metadata, and transmit the light emission control signal to the receiving device.