![]() ![]() Please contact us if you require any assistance. P P I w 2 + h 2 / d d h w More on pixel density If you want to calculate pixel density of your screen, you will have to know: horizontal and vertical pixel counts and your diagonal screen size. We hope you enjoy this free DORI calculator from Active Online. helps calculate CCTV camera lens focal length, pixel density and camera zones. ![]() ![]() You just need to know the horizontal field of view at both extents of the lens. calculators for IP surveillance cameras: for video storage and bandwidth. The same camera would detect a person at 48.9m based on 25px /m.įor a motorised camera you can calculate the DORI based on the horizontal field of view when zoomed out and at full zoom. For example a 2MP or 1080p camera would have 1920 pixels across and if it had a 90 degree lens would provide enough pixels on the face area (250px /m) at 4.9 meters to allow identification. In plain language it shows you the distance where the camera will detect, observe, recoginise, or identify a person based on the cameras number of pixels and the field of view.ĭetect Observe Recognise Identify – Use the calculator below to find out the capability of a camera based on the number of horizontal pixels and the field of view in degrees of the lens. The DORI distance is calculated based on sensor specification and lab test result according to EN 62676-4 which defines the criteria for Detect, Observe, Recognize and Identify respectively. The DORI distance is a “general proximity” of distance which makes it easy to pinpoint the right camera for your needs. Free DORI Distance Calculator from Active Online What is DORI? ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
February 2023
Categories |