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Digital Video Image Evaluation & Monitoring Tools
Video Quality Monitoring Equipment

Quality Matrix (QuMax2000) (Single/Double Stimulus Video Monitoring)

This is a combo-type monitoring equipment that automatically monitors video quality and audio errors in real time.

The QuMax extracts video essences ("Video DNA") from the source and tested videos and compares the values at remote locations. Errors such as video blackouts, freezes, slices, macro blocks and audio mutes are detected automatically in real time. The QuMax is used mainly at digital broadcast systems for master video monitoring.

Applications

  • Monitoring at broadcast system master transmission facilities
  • Remote quality monitoring in video networks
  • Dubbing quality monitoring
  • Quality inspections for videos to be written to video servers

Characteristics

  • Broad range of video formats, including SDTV, HDTV, and analog systems in both NTSC and PAL
  • Maximum of 12 channels of inputs for multi-channel quality monitoring
  • Variety of setting parameters to meet various objectives
  • Easy-to-operate GUI
  • Customized alarms incorporated into the monitoring menu
  • Customized control menus to accommodate specific monitoring needs

Specifications

System configuration example

video quality monitoring using QuMax

Detect Items

The following errors and artifacts can be detected in real time on the QuMax viewer.

PROBE unit: Single stimulus evaluation unit

Classification Explanation
Video Sync Loss Video synchronization signal lost.
Video short freeze Video freezes for relatively short period of time.
Video long freeze Video freezes for relatively long period of time.
Video short blackout Video blackout lasts for relatively short period of time.
Video long blackout Video blackout lasts for relatively long period of time.
Video subliminal Subliminal video has been inserted.
Video line dropout A video line is missing.
Audio chl/2 ~ ch5/6 sync loss Audio synchronization lost.
Audio mute ch1 ~ 6 Audio is muted.

DBLS unit: Double stimulus evaluation

Classification Description
Sync error Frame synchronization lost between two PROBE units.
Video setup level Brightness level differs between two PROBE units.
Video stripe error Partial video error.
Video artifact error Video compression and distortion error.

Data Sheet

Overview
Transport Stream Inspector
-> Quality Monitor