Institute for Telecommunication Sciences
the research laboratory of the National Telecommunications and Information Administration

Institute for Telecommunication Sciences / Resources / Video Quality Research / Standards / Video Sequences

Standard Video Sequences

These standards provide sets of video test scenes in digital format that can be used for subjective and objective testing of digital video systems. Standardized test scenes are important because video images with little detail or motion may retain their quality during digital compression and transmission, while images with extensive detail or rapid motion may become significantly impaired. Having standardized test scenes gives users the ability to directly compare the performance of two or more systems.

ANSI T1.801.01-1995

The ANSI test sequences are in the public domain. These NTSC sequences can be downloaded for free from the Consumer Digital Video Library. On the advanced search screen, select "ANSI T1.801.01" on the Dataset pull-down list.

ITU-R Rec. BT.802

The ITU test sequences are in the public domain. There are two sets of videos: 525-line (NTSC) and 625-line (PAL). Thse sequences can be downloaded for free from the Consumer Digital Video Library. On the advanced search screen, select "ITU-R Rec. BT-802 525-line" or "ITU-R Rec. BT-802 625-line" on the Dataset pull-down list.

VQEG Validation Tests

The Video Quality Experts Group (VQEG) performs subjective video quality tests to independently validate objective video quality metrics, prior to their inclusion in ITU Recommendations. Some of these datasets are available on Consumer Digital Video Library. On the advanced search screen, select "VQEG Subjective Tests" on the Dataset pull-down list.