Constraining video production based on compression-related information
US6785338B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2000 |
| Grant date | Aug 31, 2004 |
| Priority date | — |
| Expiry date | Jan 18, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/2662
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Compression-related information is used to constrain the selection and control of video imagery and content used to produce one or more uncompressed video streams for subsequent compression processing. Rather than taking an uncompressed video stream “as is” for compression processing, characteristics of compression processing are taken into consideration during the video production stage when the uncompressed video stream is generated. Different types of constraints include “intra-frame” constraints that constrain video content within a frame of a video stream, “inter-frame” constraints that constrain video content from frame to frame within a video stream, and “inter-stream” constraints that constrain video content across different video streams. Two or more different constraints and two or more different types of constraints may be applied simultaneously. The compression-related information may be “static” (e.g., in the form of processing “rules” that are applied) or fed back in real time from the video compression stage as “dynamic” information. By taking the subsequent compression processing int…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.