Promise Technology F29000020000080 用户手册
VessRAID 1000f, 1000i, 1000s Series Product Guide
For Video Surveillance Applications
© 2010 Promise Technology, Inc. All rights reserved.
6
As in all technological walks of life, digital is rapidly taking over analogue in the
surveillance industry. IP‐based cameras are gaining popularity. H.264/AVC has already
become the mainstream data compression technology. And network infrastructure is set
to be king. Choosing an IP based solution means finding a better way in the beginning.
to be king. Choosing an IP based solution means finding a better way in the beginning.
1.1.3 Megapixel and HD Camera
A number of manufacturers have begun to promote megapixel cameras business as it
represents more profit and competitive advantage compared to analog. While analog
represents more profit and competitive advantage compared to analog. While analog
cameras have no more than 400,000 pixels, all megapixel cameras (including HD) have
one million or more pixels. HD is a type of megapixel camera. All HD cameras are
megapixel but not all megapixel cameras are HD.
one million or more pixels. HD is a type of megapixel camera. All HD cameras are
megapixel but not all megapixel cameras are HD.
There are some key differentiators to identify both, but the easiest one is the video
format each can present. HD video format is 1920x1080 or 1280x720 while megapixel
video format can be numerous. There is no clear cut telling which one is better because
format each can present. HD video format is 1920x1080 or 1280x720 while megapixel
video format can be numerous. There is no clear cut telling which one is better because
as in a variety of deployment environments everything depends. It depends on the
application where some really need higher frame rates but some do not. One thing in
application where some really need higher frame rates but some do not. One thing in
clear for sure is that they’re both flashing under the spotlight in verticals.