VBrick Systems VB6000, VB4000, VB5000 manual Reference Distance

Reference Distance	For models ending in -xxx1/-xxx2, enables a user to set the
	difference between consecutive reference frames within a group of
	pictures (GOP). The values available are 1–3 (default = 2). If the
	Encoder Transport Delay setting is low or medium, the value must be
	1. Does not apply to models ending in -xxx0. If Reference Distance
	and Intrapicture Distance are both 1, the encoder will produce all I
	frames.
Intrapicture	Enables the user to set the distance between consecutive I frames
Distance	within a Group Of Pictures (GOP). The values available are 1–19
	(default = 16). Does not apply to models ending in -xxx0. If
	Reference Distance and Intrapicture Distance are both 1, the encoder
	will produce all I frames.
Luminance	0 to 255. Default = 128. The luminance is the information about the
	varying light intensity of an image, which is best described as
	brightness.
Contrast	0 to 127. Default = 62. The contrast is the range of light-to-dark
	values of an image that are proportional to the voltage differences
	between the black and white levels of the signal.
Saturation	0 to 127. Default = 66. The saturation is the spectral purity or
	intensity of a color.
Hue	Range is -128 to 127. Default = 0. The hue is the attribute by which a
	color may be identified within the visible spectrum. Hue refers to the
	spectral colors of red, orange, yellow, green blue and violet. Adding
	hue reduces the saturation.
Resolution	For models ending in -xxx0, the video resolution can be adjusted to
	be Full D1, 2/3 D1, ½ D1. For models ending in other than -xxx0,
	the video resolution can be Full D1, 2/3 D1, ½ D1 or 352x240 (SIF).
	Note that D1 resolution is not recommended at video encode rates
	below 5 Mbps. In SIF mode only closed captioning CC1 and CC2 in
	the menu settings of the video display are valid (TV menu monitor
	settings) CC3 and CC4 fields are not supported. The actual
	resolutions for NTSC and PAL are listed below:
	NTSC D1 720x480
	NTSC 1/2 D1 352x480
	NTSC 2/3 D1 480x480
	NTSC SIF 352x240
	PAL D1 720x576
	PAL 1/2 D1 352x576
	PAL 2/3 D1 480x576
	PAL CIF 352x288
Bit Rate	The encoder's bit rate can be adjusted from 1 Mbps to 10 Mbps for
	models ending in –xxx0. For models ending in other than -xxx0, the
	bit rate can be adjusted from 1–15 Mbps.

28 © 2007 VBrick Systems, Inc.