GUIDE TO INSTALLATION AND OPERATION
DNR-101i/111i |
1
1 DNR-101i Digital Noise Reducer
DNR-111i Digital Noise Reducer with MNR
1.1 Introduction
The DNR-101i and DNR-111i provides Digital Video Noise Reduction of SDI video signals for incoming feed
and compression pre-processing applications. The DNR-101i and DNR-111i perform advanced, 10-bit, 3D
Gaussian noise reduction and variable surface and edge filtering. In addition, the DNR-111i removes
Mosquito noise, using Miranda’s proprietary region-based 3D-MONORD algorithm.
The DNR is well suited to incoming feed applications, reducing the RF noise commonly found in signals
transported by satellite and microwave communication links. In this application, the DNR-101i and DNR-111i
dramatically improves the signal to noise ratio and overall image quality. They can also be effective for
negative gamma film noise reduction. The DNR-101i and DNR-111i are also suited to the pre-processing of
signals prior to digital compression for storage or transmission. Reducing random noise and applying
advanced surface and edge filtering, the DNR-101i and DNR-111i dramatically improve digital compression
quality and efficiency. The DNR-111i is particularly suited for DCT-based compression such as MPEG2
found in Direct Satellite Signals (DSS), Digital Cable, Digital Terrestrial Television and digital recording from
a Digital Video Disk. It removes artefacts and noise from the upstream compression process thus making the
retransmission of the signal cleaner and more efficient.
A user interface consisting of a 4-character dot-matrix display, 4 push buttons and six LEDs simplifies user
selections and allows precise adjustments of the parameters. All of the principal controls and pre-
programmed functions are accessible on the front card edge.
1.2 Features
• Serial 4:2:2 input with active loop-through
• Serial 4:2:2 outputs (2)
• EDH detection and insertion used for encryption
• Fully-digital, 10-bit signal processing
• Local control accessible on the front panel
1.3 Functional Block diagram
Figure 1.1 Functional block diagram
(33 Seiten)
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Kommentare zu diesen Handbüchern