Bosch VDN-498V03-21 User Manual - Page 52

Electronic iris or AES - Automatic Electronic Shutter adjusts

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FlexiDome2X | en 59 to specify the color balance correction of a camera to achieve a natural color image. D Day/Night (infrared sensitive) A camera that has normal color operation in situations where there is sufficient illumination (day conditions), but where the sensitivity can be increased when there is little light available (night conditions). This is achieved by removing the infrared cut filter required for good color rendition. The sensitivity can be further enhanced by integrating a number of fields to improve the signal-to-noise ratio of the camera (this may introduce motion blur). Default Shutter A feature allowing the shutter speed to be set to a fast speed to eliminate motion blur and provide a detailed and clear image of fast-moving objects while there is sufficient light. When light levels fall and other adjustments have been exhausted, the shutter speed reverts to the standard setting to maintain sensitivity. Depth of Field The distance from the nearest to the furthermost point that appears in focus. The smaller the aperture, the greater the depth of field. Dynamic Noise Reduction (DNR) A digital video processing technique that measures the noise (image artifacts) in the picture and automatically reduces it. E Electronic iris Electronic iris (or AES - Automatic Electronic Shutter) adjusts the camera shutter speed to compensate for lighting changes. In some cases this can eliminate the need for an autoiris lens. Bosch Security Systems Installation Manual AR18-08-B010 | v1.0 | 2009.03

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FlexiDome2X
| en
59
Bosch Security Systems
Installation Manual
AR18-08-B010 | v1.0 | 2009.03
to specify the color balance correction of a camera to achieve a
natural color image.
D
Day/Night (infrared sensitive)
A camera that has normal color operation in situations where
there is sufficient illumination (day conditions), but where the
sensitivity can be increased when there is little light available
(night conditions). This is achieved by removing the infrared cut
filter required for good color rendition. The sensitivity can be
further enhanced by integrating a number of fields to improve
the signal-to-noise ratio of the camera (this may introduce
motion blur).
Default Shutter
A feature allowing the shutter speed to be set to a fast speed to
eliminate motion blur and provide a detailed and clear image of
fast-moving objects while there is sufficient light. When light
levels fall and other adjustments have been exhausted, the
shutter speed reverts to the standard setting to maintain
sensitivity.
Depth of Field
The distance from the nearest to the furthermost point that
appears in focus. The smaller the aperture, the greater the
depth of field.
Dynamic Noise Reduction (DNR)
A digital video processing technique that measures the noise
(image artifacts) in the picture and automatically reduces it.
E
Electronic iris
Electronic iris (or AES - Automatic Electronic Shutter) adjusts
the camera shutter speed to compensate for lighting changes.
In some cases this can eliminate the need for an autoiris lens.