Stereoscopic DVD Enhancement Data Multiplexing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current technologies fail to efficiently distribute stereoscopic video content without increasing manufacturing costs or rendering existing standard DVDs and players obsolete, while also lacking effective piracy resistance.
Innovation Solution
A system that combines standard DVD video data with enhancement data to generate stereoscopic video signals, allowing for efficient distribution on a single DVD, using pre-processing techniques to reduce data rate and multiplexing with standard video, and enabling existing HD DVD and Blu-ray players to be upgraded for 3D capability through firmware upgrades.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If stereoscopic video content is distributed on a single DVD, then distribution efficiency is improved, but piracy resistance deteriorates
Solution Approach 1:
The enhancement data is divided into two separate portions: a first portion stored on the DVD and a second portion streamed from a remote server. This segmentation allows the system to maintain distribution efficiency through the DVD while improving piracy resistance by requiring authenticated streaming for the second portion, thus resolving the contradiction between distribution efficiency and piracy resistance.
2Ease of manufacture
If enhancement data is stored on the same DVD as standard video, then manufacturing cost is reduced, but data rate requirements increase
Solution Approach 1:
The enhancement data is extracted from the DVD and delivered through a separate streaming channel from a remote server. This extraction allows the DVD to maintain a manageable data rate suitable for standard manufacturing, while the streaming portion handles the additional data requirements, thus resolving the contradiction between manufacturing cost and data rate requirements.
3Device complexity
If existing players are upgraded with firmware for 3D capability, then device complexity is reduced, but compatibility with standard DVDs deteriorates
Solution Approach 1:
The player is designed with multi-functionality to handle both standard DVD playback and enhanced stereoscopic playback. The system can automatically detect the type of content being played and switch between standard mode and stereoscopic mode, maintaining compatibility with standard DVDs while enabling 3D capability, thus resolving the contradiction between device complexity and compatibility.
Data Source
AI summary
A system and method described herein provide stereoscopic video using standard DVD video data combined with enhancement data. In various embodiments, the enhancement data may be stored on the same DVD as the standard video, or provided via downloading and/or streaming to a stereoscopic DVD player. When stored on the DVD, the enhancement data is provided in various forms, including MPEG (-1 or -2) program Stream level; or the MPEG elementary stream level. In one embodiment, the enhancement data consists of a difference signal between left- and right-eye images taken on a pixel-by-pixel basis.