ELSA ERAZOR III LT, Руководство пользователя

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All about graphics
ELSA ERAZOR III Pro and ELSA ERAZOR III LT
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ELSA compression
The ELSA video compression technique reduces the data quantity even further. A special
process stores just 3 to 5 bits per pixel. Like YVU9, the ELSA video compression works
in YVU color space. The compression rate depends on the type of images being com-
pressed. Images clean of interference can be better compressed than noisy ones. Large
unchanging areas, uniform brightness and low color variation also enable a better com-
pressed than with complex images. A frame with 320x240 pixels compressed with the
ELSA technique takes up about 48 KB. A frame with 640x480 pixels generally reaches a
higher rate of compression than with 320x240 pixels, and takes up approximately 120 KB.
Your computer carries out the ELSA video compression in real time while you record the
video. Utilizing the ELSA compression presents you with several advantages:
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you can record videos at a higher frame rate,
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you can record videos in higher resolutions,
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the drop rate is lower, and
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you can record longer video sequences on hard disk than is possible without data
compression.