VIVOTEK PZ7151 사용자 설명서
VIVOTEK - A Leading Provider of Multimedia Communication Solutions
User's Manual - 47
■ 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.
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.
■ 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.
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.
■ Video quality
A complex scene generally produces larger fi le size, meaning that higher bandwidth will be needed
for data transmission. Therefore, if Constant bit rate is selected, the bandwidth utilization is fi xed at
a selected level, resulting in mutable video quality performances. The bit rates are selectable at the
following rates: 20Kbps, 30Kbps, 40Kbps, 50Kbps, 64Kbps, 128Kbps, 256Kbps, 512Kbps, 768Kbps,
1Mbps, 2Mbps, 3Mbps and 4Mbps.
A complex scene generally produces larger fi le size, meaning that higher bandwidth will be needed
for data transmission. Therefore, if Constant bit rate is selected, the bandwidth utilization is fi xed at
a selected level, resulting in mutable video quality performances. The bit rates are selectable at the
following rates: 20Kbps, 30Kbps, 40Kbps, 50Kbps, 64Kbps, 128Kbps, 256Kbps, 512Kbps, 768Kbps,
1Mbps, 2Mbps, 3Mbps and 4Mbps.
On the other hand, if Fixed quality is selected, all frames are transmitted with the same quality;
bandwidth utilization is therefore unpredictable. The video qualities are selectable at the following
settings: Medium, Standard, Good, Detailed and Excellent.
bandwidth utilization is therefore unpredictable. The video qualities are selectable at the following
settings: Medium, Standard, Good, Detailed and Excellent.
If JPEG mode is selected, the Network Camera continuously sends JPEG images to the clients,
producing dynamic effects similar to movies. Every single JPEG image transmitted guarantees the
same image quality, which in turn comes at the expense of variable bandwidth usage. And because
the media contents are a combination of JPEG images, no audio data is transmitted to the clients.
producing dynamic effects similar to movies. Every single JPEG image transmitted guarantees the
same image quality, which in turn comes at the expense of variable bandwidth usage. And because
the media contents are a combination of JPEG images, no audio data is transmitted to the clients.
■ 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.
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.
■ Maximum frame rate
This limits the maximal refresh frame rate per second. Set the frame rate higher for a smoother video
quality.
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.
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.
■ Video quality
The video qualities are selectable at the following settings: Medium, Standard, Good, Detailed and
Excellent.
The video qualities are selectable at the following settings: Medium, Standard, Good, Detailed and
Excellent.