Selective Film Grain Synthesis for Reliable Video Encoding
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Solution Overview
Problem
Conventional methods for preserving film grain during video encoding are unreliable, leading to inefficient encoding and excessive network bandwidth usage when film grain reintroduction fails.
Innovation Solution
A video encoding pipeline with a film grain processing service (FGPS) that selectively applies film grain synthesis to specific portions of the video, dividing the source video into segments, denoising and modeling film grain characteristics, and generating film grain tables to ensure successful reintroduction during decoding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If film grain synthesis operation is applied to all video data, then film grain characteristics are preserved, but encoding efficiency decreases and network bandwidth increases
Solution Approach 1:
The video data is divided into multiple segments or portions, with the film grain synthesis operation selectively applied only to certain portions where it is most beneficial. This segmentation allows the system to preserve film grain characteristics in critical areas while skipping unnecessary applications in other areas, thereby improving encoding efficiency without compromising overall film grain preservation reliability.
2Reliability
If film grain synthesis operation is applied to all video data, then film grain characteristics are preserved, but network bandwidth consumption increases
Solution Approach 1:
Different portions of the video data receive different treatments based on their specific characteristics. The film grain synthesis operation is applied locally only where needed to preserve film grain characteristics, rather than uniformly across all video data. This local quality approach ensures reliable film grain preservation in critical regions while minimizing network bandwidth consumption overall.
3Productivity
If film grain synthesis operation is not applied, then encoding efficiency is maintained, but film grain characteristics are lost
Solution Approach 1:
Instead of applying the film grain synthesis operation to all video data (excessive action) or none at all (no action), the system applies it partially to specific portions where it provides the most value. This partial action approach maintains encoding efficiency by avoiding unnecessary operations while still preserving film grain characteristics where they are most important.
Data Source
AI summary
In various embodiments, A computer-implemented method for selectively applying film grain synthesis when encoding and decoding media titles includes determining that a film grain synthesis operation should be applied to a first portion of video data, determining that the film grain synthesis operation should not be applied to a second portion of video data, and generating encoded video data based on the first portion of video data and the second portion of video data, wherein the film grain synthesis operation is applied to the first portion of video data when decoding the encoded video data and the film grain synthesis operation is not applied to the second portion of video data when decoding the encoded video data.