Video Teleconferencing Performance Testing.
Abstract
In recent years, with the onset of digital television processing and transmission, developments in television practices have rendered former methods of quality measurements of television signals as less accurate or applicable, as one would expect. In the past, quality measurements of analog television signals were easily verified by use of video test signals that show amplitude and transient response, and for distortion freedom by differential gain and phase. In digital television systems, the advent of bandwidth compression has introduced techniques such as interframe coding which has created the need to identify objective measurements that can be used to accurately verify the quality of the video conducted by the particular digital system in use. The purpose of this subtask is to investigate the results of subjective tests with objective tests made under the same conditions of a selection of video scenes that are considered typical of video telephony, video teleconferencing or entertainment video.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1994
- Accession Number
- ADA319873
Entities
People
- Gary Rekstad
Organizations
- Delta Information Systems (United States)