VP21S
(Double Stimulus Video Evaluation)
The VP21S performs automatic,
real-time evaluation of SDTV video image quality.
 The
VP21S achieves automated, real-time measurement
and analysis by comparing the source and the tested
video. Our patented Video DNA Technology gives
evaluation that highly correlates with subjective
testing according to ITU standards (DSCQS). Video
synchronization is done automatically by the equipment,
and analysis is done at pixel level of detail.
The VP21S is mainly used for CODEC evaluation,
QA verification and SDTV system performance improvements.
Applications
- Encoder/decoder debugging operations
- Broadcast system video quality evaluation
- Automatic dubbing quality evaluation
- Evaluations of encoding quality/performance
during DVD authoring
- Automatic evaluation of master DVD playback
quality
Characteristics
Specifications
| Model name |
VP21S (standard specs) |
VP21S (PC connection type)
* OS Windows(R) only |
| Evaluation video input |
NTSC analog, PAL analog, SMPTE259M
(SD-SDI) |
NTSC analog, PAL analog, SMPTE259M
(SD-SDI), PC connection RS232C (Dsub9pin)
|
| Evaluation measurement parameters |
DSCQS value (%) Y/C SNR value
|
DSCQS value (%) Y/C SNR value
|
Delay compensation
* Measurement of CODEC internal delay |
Frame: Max. 60 (2 sec. intervals)
Line: Max. ± 4 (manual)
Pixel: Max. ± 24 |
Frame: Max. 60 (2 sec. intervals)
Line: Max. ± 4 (manual)
Pixel: Max. ± 24 |
| Device size |
Width: Depth: Height = 430:
500: 87(mm) 2U |
| Voltage, power consumption,
weight |
AC 100V - 240V, 50/60Hz 200W,
8kg |
System configuration example
CODEC quality evaluation using VP21S
- Show DSCQS graph and scores on evaluation video
screen
Application example
Comprehensive video quality control throughout
DVD production process
GUI
Data Sheet
|
