PQA600A Datasheet, PDF (7/19 Pages) List of Unclassifed Manufacturers – Picture Quality Analysis System

Picture Quality Analysis System — PQA600A
Configure Measure Dialog
Comprehensive Picture Quality Analysis
The PQA600A provides Full Reference (FR) picture quality measurements
that compare the luminance signal of reference and test videos. It also
offers some No Reference (NR) measurements on the luminance signal of
the test video only. Reduced Reference (RR) measurements can be made
manually from differences in No Reference measurements. The suite of
measurements includes:
Critical Viewing (Human Vision System Model-based, Full Reference)
Picture Quality
Casual Viewing (Attention Weighted, Full Reference, or No Reference)
Picture Quality
Peak Signal-to-Noise Ratio (PSNR, Full Reference)
Focus of Attention (Applied to both Full Reference and No Reference
Measurements)
Artifact Detection (Full Reference, except for DC Blockiness)
DC Blockiness (Full Reference and No Reference)
Edit Measure Dialog
The PQA600A supports these measurements through preset and
user-defined combinations of display type, viewing conditions, human
vision response (demographic), focus of attention, and artifact detection,
in addition to the default ITU BT-500 conditions. The ability to configure
measurement conditions helps CODEC designers evaluate design
trade-offs as they optimize for different applications, and helps any
user investigate how different viewing conditions affect picture quality
measurement results. A user-defined measurement is created by modifying
a preconfigured measurement or creating a new one, then saving and
recalling the user-defined measurement from the Configure Measure dialog
menu.
Easy-to-Use Interface
The PQA600A has two modes: Measurement and Review. The
Measurement mode is used to execute the measurement selected in the
Configure Dialog. During measurement execution, the summary data and
map results are displayed on-screen and saved to the system hard disk.
The Review mode is used to view previously saved summary results and
maps created either with the measurement mode or XML script execution.
The user can choose multiple results in this mode and compare each
result side by side using the synchronous display in Tile mode. Comparing
multiple results maps made with the different CODEC parameters and/or
different measurement configurations enables easy investigation of the root
cause of any difference.
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