Vivotek VS3100P Installation Guide download pdf (Page 45)

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Video codec parameters

“Text on video” The text will be displayed in the black bar above the video window

with a timestamp. The timestamp is captured from the date and time of the Video

Server that is maintained by a built-in real-time clock.

“Color” Select either for color or monochrome video display.

“Size” There are five options for three video sizes. “Half” is the quarter size of

“Normal”. “Half x 2” has the same video size as “Normal” but of a lesser quality,

while consuming less network bandwidth. “Normal” is the quarter size of “Double”.

“Normal x 2” has the same video size as “Double” but of a lesser quality, while

consuming less network bandwidth.

“Modulation” The type of video modulation depended on the type of camera. The

type is auto-detected during initialization, but the Administrator can still set it

manually.

There are three dependent parameters provided for video performance adjustment.

“Maximum frame rate” This limits the maximal refresh frame rate, which can be

combined with the “Video quality control” to optimize bandwidth utilization and

video quality. If the user wants to fix the bandwidth utilization regardless of the video

quality, choose “Fix bit rate” and select the desired bandwidth. The video quality may

be poor due to the sending of maximal frame rate within the limited bandwidth when

images are moving rapidly. Consequently, to ensure detailed video quality

(quantization rate) regardless of the network, it will utilize more bandwidth to send the

maximal frames when images change drastically.

“Flip” Vertically rotate the video.

“Mirror” Horizontally rotate the video. Check options both if the Video Server is

installed upside down.

Click on this button to pop up another window to tune “Brightness”,

“Contrast”, “Hue” and “Saturation” for video compensation. Each field has eleven

levels ranged from -5 to +5. The user may press

to fine-tune the image.

When the image is O.K., press

to set the image settings. Click on this to

recall the original settings without incorporating the changes.

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Vivotek VS3100P Installation Guide Page 45