Home-Video Digital-Master Package Video Encoding
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Solution Overview
Problem
Current digital distribution systems compress and decompress video content multiple times, leading to significant quality degradation and the introduction of artifacts due to lossy compression schemes and differences in resolution and pixel aspect ratios between source and display formats.
Innovation Solution
The implementation of a 'Home-Video Digital-Master Package' (HVP) that encodes video data in a device-independent color space using a spatially-independent compression scheme, such as wavelet compression, and only resizes content from higher to lower resolutions to minimize data loss, ensuring that content is compressed once and preserved in high quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If digitally-mastered content is compressed multiple times using different data compression schemes, then the content can be adapted to various digital media devices with different resolutions and formats, but the quality of content deteriorates and compression artifacts are introduced
Solution Approach 1:
The patent applies preliminary action by creating a master encoded version of the content using a first compression scheme, then using this master version as the source for all subsequent encodings. This single master encoding serves as the foundation for adapting content to multiple devices, avoiding the need for multiple independent compression operations that would accumulate artifacts.
Solution Approach 2:
The master encoded version acts as an intermediary between the original digitally-mastered content and the various target device formats. Instead of directly compressing the original content for each device (which would cause multiple quality losses), the master encoded version serves as an intermediate source that can be efficiently re-encoded for different devices with minimal quality degradation.
2Quantity of substance
If digitally-mastered content is compressed for digital distribution, then the file size reduces to fit bandwidth and storage constraints, but the quality is reduced and compression artifacts are introduced
Solution Approach 1:
The patent applies parameter changes by using different compression schemes and parameters for different distribution channels. The master encoded version uses a first compression scheme optimized for quality preservation, while subsequent encodings for specific devices use appropriate compression parameters for each platform, allowing quality optimization for each use case rather than a single compromise.
3Adaptability or versatility
If content is resized to account for differences in resolution and pixel aspect ratio, then the content can be displayed correctly on various devices, but quality is reduced due to multiple resizing operations
Solution Approach 1:
The patent applies preliminary action by performing the master encoding at a reference resolution and pixel aspect ratio, then using this pre-encoded master version as the source for all subsequent resizing operations. This approach consolidates the resizing operations into a single preliminary step rather than performing multiple sequential resizes, thereby minimizing quality degradation.
Data Source
AI summary
A method for determining digital video data includes receiving digital data comprising a plurality of digital images, wherein each digital image is encoded in a first color space, determining a plurality of color-graded digital images in response to the plurality of digital images and in response to color grading input data, wherein each color-graded digital image is encoded in a second color space, and wherein the second color space is associated with HD video, encoding each color-graded image with a compression encoding substantially independent of integer pixel translation of the plurality of color-graded digital images to form encoded image data package, storing the encoded image data package in a tangible media, and determining the digital video data for a video display device in a remote server in response to the encoded image data package.