Vivotek IZ7151 User Manual download pdf (Page 45)

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User's Manual - 45

The Network Camera switches on the infrared cut filter at all times to block the infrared light from

reaching the sensor so that the colors are not distorted�

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Night mode

The Network Camera switches off the infrared cut filter to allow the infrared light to pass through�

This helps the Network Camera to see more, especially in low light conditions�

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Schedule mode

The Network Camera switches between day mode and night mode based on specified schedule�

Enter the starting time and ending time for the day mode� Note that the time format is [hh:mm]

and is expressed in 24-hour clock time� By default, the starting time and ending time of day

mode are set to 07:00 and 18:00�

Video quality settings for stream 1 / stream 2 :

Set two streams for the Network Camera for different

purposes� For example, set the Network Camera to a smaller frame size and a lower bit rate for

viewing on mobile phones� Or, set the Network Camera to a larger video size and a higher bit rate

for viewing on web browsers�

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Mode

The Network Camera offers two choices of video compression standards for real-time viewing:

MPEG-4 and Motion JPEG�

If MPEG-4 is selected, it is streamed in RTSP protocol� There are four dependent parameters

provided in MPEG-4 mode for video performance adjustment�

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Frame size

Select the video size� Note that a larger frame size takes up more bandwidth� The frame sizes

are selectable in the following resolutions: 176 x 144, 320 x 240 and 640 x 480�

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Maximum frame rate

This limits the maximal refresh frame rate per second� Set the frame rate higher for a smoother

video quality�

If the power line frequency is set to 50Hz, the frame rates are selectable at the following rates:

1fps, 2fps, 3fps, 5fps, 8fps, 10fps, 15fps, 20fps and 25fps� If the power line frequency is set to

60Hz, the frame rates are selectable at the following rates: 1fps, 2fps, 3fps, 5fps, 8fps, 10fps,

15fps, 20fps, 25fps and 30fps�

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Intra frame period

Determine how often to plant an I frame� The shorter the duration, the more likely you will get

a better video quality, but at the cost of higher network bandwidth consumption� Select the

intra frame period from the following duration: 1/4 second, 1/2 second, 1 second, 2 seconds, 3

seconds and 4 seconds�

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Video quality

A complex scene generally produces larger file size, meaning that higher bandwidth will

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Vivotek IZ7151 User Manual Page 45

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