What is resolution?
Resolution is the number of vertical by horizontal pixels that a camera can record at. The higher the resolution the more detailed the pitcure. A VGA resolution is 640×480 pixels. (Computer screens have resolutions in VGA or multiples of VGA.) Another common format is 4CIF (704×480 pixels in NTSC / 704×576 pixels in PAL standard). Megapixel cameras provide high resolutions of at least 1280×960 pixels and are used for applications that require the ability to see fine details or cover a large area. A network video product’s ability to deliver a specified number of frames per second may vary depending on the resolution.
Digital Resolution Standards
IP camera resolutions can come in a huge variety of forms, below is a list of the standard IP Camera resolutions.
|NAME||HORIZONTAL PIXELS||VERTICAL PIXELS||MEGAPIXEL|
Analogue Resolution Standards
D1 CCTV resolution is 704 x 480 pixels and is the highest resolution the CCTV system can record at.
CIF CCTV resolution is 352 x 240 pixels in size and is one quarter the resolution of D1. This resolution is typically used by mid level stand alone DVR recorders when recording real time video. It is also typically used by higher end systems for remote Internet viewing (as streaming D1 video for multiple cameras uses a lot of bandwidth).
QCIF CCTV resolution is 176 x 120 pixels in size and is one quarter the size of CIF resolution. This resolution is typically used for remote viewing from a mobile device.