Comparison and Calibration of Mobile Phone Fisheye Lens and Regular Fisheye Lens via Equidistant Model

Table 1

Technical specifications of the cameras.

	iPhone 4S	Nikon Coolpix8700
Sensor	CMOS 1/3.2′′ sensor size	CCD 2/3′′
Image resolution	3264 × 2448 (8.0 MP)	3264 × 2448 (8.0 MP)
Focal length	4.324602 mm	9.027620 mm
Pixel size	1.4 µm	2.7 µm
Digital zoom values	Up to 5x	Up to 4x
Aspect ratio	4 : 3	4 : 3; 3 : 2
LCD size	3.5′′	1.8′′

These are the values obtained after separate calibrations performed before the application in PI3000 software for iPhone 4S and Nikon Coolpix8700 cameras used in the application. The pictures in the resolution of 3264 × 2448 are taken in this focal length.