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Network Camera User Manual
SVC
Scalable Video Coding (SVC) is the name for the Annex G extension of the H.264 or H.265 video
compression standard.
The objective of the SVC standardization has been to enable the encoding of a high-quality video
bitstream that contains one or more subset bitstreams that can themselves be decoded with a
complexity and reconstruction quality similar to that achieved using the existing H.264 or H.265
design with the same quantity of data as in the subset bitstream. The subset bitstream is derived
by dropping packets from the larger bitstream.
SVC enables forward compatibility for older hardware: the same bitstream can be consumed by
basic hardware which can only decode a low-resolution subset, while more advanced hardware
will be able decode high quality video stream.
MPEG4
MPEG4, referring to MPEG-4 Part 2, is a video compression format developed by Moving Picture
Experts Group (MPEG).
MJPEG
Motion JPEG (M-JPEG or MJPEG) is a video compression format in which intraframe coding
technology is used. Images in a MJPEG format is compressed as individual JPEG images.
Profile
This function means that under the same bitrate, the more complex the profile is, the higher the
quality of the image is, and the requirement for network bandwidth is also higher.
4.1.8 Smoothing
It refers to the smoothness of the stream. The higher value of the smoothing is, the better fluency
of the stream will be, though, the video quality may not be so satisfactory. The lower value of the
smoothing is, the higher quality of the stream will be, though it may appear not fluent.
4.2 ROI
ROI (Region of Interest) encoding helps to discriminate the ROI and background information in
video compression. The technology assigns more encoding resource to the region of interest, thus
to increase the quality of the ROI whereas the background information is less focused.
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