IP cameras excel in capturing high definition, megapixel images but have trouble with low lighting conditions.
Dropped frames and video artifacts are commonly seen in IP CMOS
cameras. IP cameras are limited in encoding resources. As a result
choices have to be made with respect to codec, frame rates and quality
where the selection of one decreases quality of another. Since the
video is being compressed before monitoring, you can never have
the highest quality or real time images. Encoding at the camera introduces latency, which becomes an issue when
an operator needs to track something with a PTZ controller and overcorrects.
Analog CCD cameras perform well across a variety of lighting conditions
and manage motion well. Analog cameras do not have capabilities above
the NTSC/PAL standards. As analog compresses the video in the DVR there
are more hardware and software resources available to provide increased
video quality and frame rate. Analog cameras transmit the video image
to the DVR uncompressed where it can be viewed live with no latency
pre-compression. Which is Better? An IP Camera or an Analog Camera?