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l of amplification of a signal. The Gain
affects image sharpness sensed by the naked eye.
ificant
sist of picture elements dubbed "pixels".
ons. The pixel size is a technical parameter
en die
scanning whereby lines of a picture are
computer world. This method is often used in
VD video encoding where the video is produced by scanning the film. It is also used in
sor Size” is the
imensions of CCD/CMOS sensor area, which is
l
”
Gain is the leve
When gain is increased in an image, one mus
take into consideration the addition of sign
“noise”.
Pixel Size - Most CCD and CMOS imagers con
Each pixel is one sensor within the array and ha
definite size, which should be available by the
cturer. Sizes typically range from 8-20
t also
s a
manufa
micr
that relates to resolution, process f
dimensions and pixel architecture. For a giv
size, a high resolution requires a small pixel
Progressive-Scan - A system of video
transmitted consecutively, such as in the
eature
D
enhanced and high
definition television systems
as it is supposed to produce
less visual artifacts than the
interlaced mode but
requires a higher refreshing
rate.
Sensor Size - The “Sen
d
responsible for transforming light into electrica
signals. Typically, the sensor size from 1/4” to 1
and measured by diagonal size.
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