Concept Pro CVP5325DNIR-IP2M/2.8, Быстрый старт

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IP CAMERA QUICK START GUIDE
7. Optimising video for image quality and storage requirements
All Concept Pro cameras & recorders come with features designed to help balance the
need for high quality images and lower storage requirements. Selecting the proper settings
for each camera can help optimise your system and balance image quality with storage
requirements.
Constant Bit Rate
Constant Bit Rate (CBR) applies a specific bit rate for the video stream and the camera will
transmit at approximately this bit rate without regard to time, light level, scene complexity,
or other factors. As a result, the image quality will appear improved, but bandwidth and
storage requirements will be the high.
Variable Bit Rate
Variable Bit Rate (VBR) automatically adjusts the bit rate according the scene being
monitored. With VBR enabled, the image quality will decrease when there is less or no
motion occurring and increase when scene complexity increases. As a result, bandwidth
and storage requirements can be considerably reduced while the image quality will be
focused on scenes of actual importance.
VBR+
Similar to other smart codecs, VBR+ is a more intelligent video processing feature that can
more aggressively apply techniques to dramatically reduce the bit rate by only focusing
optimal image quality according to scene complexity.
Regions of Interest
Regions of Interest can be manually set with the area denoted ‘of interest’ or ‘not of
interest’. According to the setting, the camera will apply optimal image quality to the area
and low image quality to outside areas to help reduce bit rate further
Auto ROI is another option that allows the camera to intelligently track moving objects and
apply optimal image quality to moving objects only while the background image quality
would be lower.
Smart Storage Compression (SSC)
SSC on Concept Pro NVRs is designed to limit the camera bit rate according to the
recording FPS value. With Smart Storage Compression (SSC) set to ON, the system will reduce
the maximum bit rate to 4Mbps for the main stream and 1Mbps for the sub stream. It will
also automatically adjust the max bit rate according to the record FPS setting. SSC therefore
attempts to balance image quality with recording frame rate for additional savings in
bandwidth and storage.
H.265
H.265 is a new video compression codec that allows for more optimal compression of video
streams compared to the H.264 video codec. When combined with VBR, this can result in
a considerable reduction in bit rate compared to H.264 without a major trade off in image
quality.
Note: Performance of bit rate control schemes and video compression codecs depends
upon the installation environment.