Technicolor - Thomson Camcorder CAMERA TTV 1707 Instrukcja Użytkownika Pobierz pdf (Strona 116)

116 Chapter 1 - Specifications

Presentation

B1707M00LD

September 2000

THOMSON TTV1707 / CCU DT500

User manual

1.2 - PRESENTATION

Wide aperture prism type optical separator (f/1.4)

The separator is fitted with:

• A 4-position density filter wheel.

• A 4-position effect filter wheel.

• 1 quartz filter, suppressing colorimetric errors due to reflected polarised light.

• 1 anti-aliasing optical filter.

• 1 infrared filter.

High performance video processing chain

Gain in steps of - 3 dB to + 21 dB.

Digital video processing over 12 bits consists mainly:

• Automatic Black Shading Correction.

• White Shading Correction.

• Automatic pixel correction:

Pixel correction is intended to reduce non-uniformity between pixels. This device

corrects the pixels which may have become defective with time.

• Automatic flare compensation.

• Contour correction:

This correction includes a correction of “aperture” centred on 6-7 MHz intended to

compensate for the loss in modulation depth up to 6 MHz, and a “physiological”

correction centred on 3-4 MHz intended to provide image relief. This correction is

generated by the three R,G,B channels.

Physiological

correction

detail

centring

Aperture

correction

MHz

100 %

Video signal with contour and lowpass optical filter

1 2 ... 111 112 113 114 115 116 117 118 119 120 121 ... 189 190

Brak uwag

Technicolor - Thomson Camcorder CAMERA TTV 1707 Instrukcja Użytkownika Strona 116