Fastec IL3, Руководство оператора

Страница: 86 / 107

IL3 User’s Guide
page 78
11S-3002B
Appendices
Appendix A: Definition of terms
Arm When armed, the camera will capture and write images into a partition of camera
memory, and then overwrite it continually until it receives a trigger.
Arm/Record Bug The Arm/Record Bug is the small vertical line used in conjunction with the Record Bar to
indicate the progress of the camera while acquiring pre- and post-trigger images.
AVI Audio Video Interleave (AVI) is a popular file type for electronic video. AVI files may
include certain types of image/video data (compressed or un-compressed), audio data,
and metadata.
Backlight The Backlight is the illumination used to light the LCD display on the camera.
Battery Status LED Battery Status LED States:
Bit Depth Images captured by the IL3 sensor are read in binary form. Each pixel is given a binary
10-bit value from 0000000000 to 1111111111, or, in decimal form, from 0 to 1023. 0 is
black, 1023 is white—all numbers in between are shades of gray from very dark to very
bright. The camera operator has the option of recording all ten bits (1024 shades) or 8
bits (256 shades). If the operator chooses to record 8-bit data, they must choose which
8 bits of the ten to record. They may wish to record the Lower 8 bits, which will greatly
enhance the dark areas of the image, tend to saturate the bright areas, and will expose
more noise; or the Middle 8 bits, which will somewhat enhance the dark areas wash out
the brighter areas, and expose some noise; or the High 8 bits, which will be the cleanest
image, but with the least definition in the darker areas.
BMP Stack BitMaP (BMP) files contain un-compressed image data. Each file contains one image. A
BMP Stack is a collection of images. The BMP Stack produced by the IL3 is a collection of
frames, written as BMP files representing a captured video sequence.
Brightness Linear image control that boosts all pixel values without disturbing the slope of the
curve.
CinemaDNG CinemaDNG is an open digital cinema format that uses the Adobe Digital Negative
Specification (DNG), widely used as an archival format for Raw images. The specification
is an attempt to standardize digital commercial video format thereby simplifying
collaboration and workflow across the entertainment industry and all other industries
dependent on digital video recording, i.e. automobile crash testing, military testing, etc.
Color Temperature The Color Temperature of an ideal black body is defined as its surface temperature in
kelvins (K). The Color Temperature of a light source is an assigned value that closely ap -
proximates what a human would perceive as a match between that light source and an
ideal black body at that Temperature (K). High color temperatures are seen bluish, while
lower color temperatures are seen reddish.
Config. Camera Configuration that can be saved and reloaded. Includes settings for Frame Rate,
Resolution, Shutter Speed, Trigger, bit depth, and Auto Save.
Contrast Linear image control that enhances the difference between pixel values by changing the
slope of the curve, while maintaining the mean value.
Cursor The cursor may be any graphic indication of where the current focus is within the user
interface. This may be anything from a blinking vertical line as used within a dialog box
when the user is entering text, or it may be a change in the color of a button as when
navigating through menus.
Table 8-1: Definitions