User Manual

Table Of Contents
DS-2TD8167-190ZE2F/W Thermal & Optical Bi-Spectrum PTZ Network Camera User Manual
UM DS-2TD8167-190ZE2F/W 040521NA 55
10.1.5 Video Quality
When Bitrate Type is set to Variable, video quality is configurable. Select a video quality according to
actual needs. Note that higher video quality requires higher bandwidth.
10.1.6 Frame Rate
The frame rate describes the frequency at which the video stream is updated, and it is measured in
frames per second (fps).
A higher frame rate is advantageous when there is movement in the video stream, as it maintains image
quality throughout. Note that a higher frame rate requires higher bandwidth and larger storage space.
10.1.7 Video Encoding
This is the compression standard the device uses for video encoding.
Available compression standards vary according to device models.
H.264: H.264, also known as MPEG-4 Part 10, Advanced Video Coding, is a compression standard.
Without compressing image quality, it increases compression ratio and reduces the size of video file
more than MJPEG or MPEG-4 Part 2.
H.264+: H.264+ is an improved compression coding technology based on H.264. By enabling H.264+,
you can estimate the HDD consumption by its maximum average bitrate. Compared to H.264, H.264+
reduces storage by up to 50 percent with the same maximum bitrate in most scenes.
When H.264+ is enabled, Max. Average Bitrate is configurable. The device gives a recommended max.
average bitrate by default. You can adjust the parameter to a higher value if the video quality is less
satisfactory. Max. average bitrate should not be higher than max. bitrate.
When H.264+ is enabled, Video Quality, I Frame Interval, Profile, and SVC are not
configurable.
H.265: H.265, also known as High Efficiency Video Coding (HEVC) and MPEG-H Part 2, is a compression
standard. In comparison to H.264, it offers better video compression at the same resolution, frame rate
and image quality.
H.265+: H.265+ is an improved compression coding technology based on H.265. By enabling H.265+,
you can estimate the HDD consumption by its maximum average bitrate. Compared to H.265, H.265+
reduces storage by up to 50 percent with the same maximum bitrate in most scenes.
When H.265+ is enabled, Max. Average Bitrate is configurable. The device gives a recommended max.
average bitrate by default. You can adjust the parameter to a higher value if video quality is less
satisfactory. Max. average bitrate should not be higher than max. bitrate.
When H.265+ is enabled, Video Quality, I Frame Interval, Profile and SVC are not configurable.
MJPEG: Motion JPEG (M-JPEG or MJPEG) is a video compression format in which intraframe coding
technology is used. Images in a MJPEG format are compressed as individual JPEG images.