Originally I made a mistake and forgot the one half factor from the sine function, which caused a wrong result and confused me. This page shows the results of such measurements.
#DIAGONAL FOV OF ZED CAMERA SOFTWARE#
Note 2: Some projection software such as PanoTools use a more general projection formula of r = k1 f sin(θ/k2) where k1 and k2 are found empirically (from measurements) for different lenses. The page linked above has a lot of information on various projections. Some use different projections, such as the Samyang 8 mm, which is said to be closer to stereographic. Note 1: This is not valid for all fisheye lenses. Let's make another plot for the sensor size of an actual camera (Nikon D7100). This paper proposed a method of three dimensions (3D) reconstruction from a wide field of view(FoV) camera system. Most current APS-C cameras have slightly smaller sensors with diagonals closer to 14 mm, so in practice the angle of view will be a bit less than what's shown on this graph. We can also make a plot to show the field of view versus focal length for equal area projection fisheyes, and compare with rectilinear lenses. For APS-C with r = 15 mm and f = 17 mm this gives 105 degrees, which matches Tokina's claim for 100 degrees at 17 mm. Where r is now the half-diagonal of the sensor. The reverse formula for calculating the field of view will be FoV = 2 θ = arcsin(r / (2f)) Diagonal fisheye lenses using this projection indeed all have ~ 10 mm focal length (Nikon 10.5 mm, Sigma 10 mm, Tokina 10-17 mm). This roughly matches the half diagonal of APS-C sensors ( nominally 15 mm). Where r is the distance from the centre in the projection plane of a point that is visible under angle θ.įor 10 mm focal length this gives r = 2 * 10 mm * sin(π/2 / 2) = 14 mm for the radius of the 180-degree image circle.
Startup and Operating Conditions -30 ☌ to 60 ☌ (-22 ☏ to 140 ☏).Michel Thoby's webpage has the following formula for the equal-area projection: r = 2 f sin(θ/2).Linkage Upload to FTP, notify surveillance center, send email.Basic Event Motion detection, video tampering alarm, exception.
Ethernet Interface 1 RJ45 10 M/100 M self-adaptive Ethernet port.Day/Night Switch Day, Night, Auto, Schedule.
#DIAGONAL FOV OF ZED CAMERA FREE#
Plug-in free live view: Chrome 57.0+, Firefox 52.0+ Web Browser Plug-in required live view: IE 10+.3 levels: administrator, operator and user API Open Network Video Interface, ISAPI.Simultaneous Live View Up to 6 channels.Protocols TCP/IP, ICMP, HTTP, HTTPS, FTP, DHCP, DNS, DDNS, RTP, RTSP, RTCP, NTP, UPnP™, SMTP, IGMP, 802.1X, QoS, IPv6, Bonjour, IPv4, UDP, SSL/TLS.Region of Interest (ROI) 1 fixed region for main stream.Given the ZED camera has both of these relatively small - baseline is 'just' 120mm and f will be pretty small given the quite large FOV of 110 degrees in diagonal (f is 'FOV inverted', so wider FOV gives smaller f). H.264 Type Baseline Profile/Main Profile/High Profile You get better depth accuracy the bigger f and b are.The diagonal field of view (FOV) of the camera is determined by the. Lens Type Fixed focal lens, 2.8 and 4 mm optional lens projects the light illuminated or reflected from a light source or an object on the IS, respectively.Focal Length & FOV 2.8 mm, horizontal FOV 105°, vertical FOV 58°, diagonal FOV 123°Ĥ mm, horizontal FOV 81°, vertical FOV 43°, diagonal FOV 97°.Illumination Color: 0.01 Lux AGC ON), B/W: 0 Lux with IR Image Sensor 1/2.7" Progressive Scan CMOS.
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