Справочник Пользователя для Sony NSRE-RM2
4
VIDEO SECURITY
KEY FEATURES
View-DR.
View-DR technology from Sony offers an extremely wide
dynamic range.
dynamic range.
View-DR is a combination of Sony’s
full-capture Wide-D technology, the
high-speed ‘Exmor’ CMOS sensor and
Visibility Enhancer (VE). The full-capture
Wide-D technology captures images
using a 'standard' exposure time and
takes either one or three images using
very short exposure times depending on
the camera type. The newly developed
View-DR algorithm nearly doubles the
camera's sensitivity when compared to
conventional Wide-D technologies.
To capture multiple HD resolution images
at a very high speed, the ‘Exmor’ CMOS
sensor utilises its high-speed readout
characteristics. When combining multiple
images, VE is employed to provide a high
level of chrominance and luminance. With
View-DR, monitored images become very
visible; even more so than when viewed
with the naked eye.
One image is taken using a standard
exposure time and either one or three
images are taken using very short
exposure times, depending on the
camera type.
(This illustration shows one standard
exposure time and three very short
exposure times.)
4
1/60 s
➊
Standard Exposure Time
➋
Short Exposure Time
➌
Shorter Exposure Time
➍
Shortest Exposure Time
High-speed readout by
Exmor CMOS sensor
Exmor CMOS sensor
1/60 s
Exposure Time
Captured Image by
➊
Captured Image by
➌
Captured Image by
➍
Visibility Enhancer
Captured Image by
➋
View-DR
Dedicated
Algorithm
Dedicated
Algorithm
Combine the four images
to reproduce a
high-contrast image.
to reproduce a
high-contrast image.
Apply “Visibility Enhancer” for high
chrominance and luminance.
chrominance and luminance.
DR