Existence of fiducials marks in a digital camera file
I have created a generic digital camera file using Erdas 2015 with the following data in it:
LPS Camera File Version: 2.0 Camera Name: "generic digital camera" Camera Description: "generic digital camera" Focal Length [mm]: 35 Principal Point: x0 [mm]: 0 y0 [mm]: 0 Fiducial Coordinates: Number of Fiducials: 4 ID X[mm] Y[mm] 1 30 0 2 -30 0 3 0 30 4 0 -30 Radial Distortion Observations: Type: "Radial Distance" Number of Observations: 2 ID Distance[mm] Distortion[microns] 1 0 1 2 1 2 Radial Lens Distortion Coefficients: k0: 0 k1: 0 k2: 0 Extended Parameters: Type: "NONE"
All included data makes sense except the existence of the fiducials marks , As I now the fiducials are existed for farm cameras not for digital ones. And when I click on the fiducials tap in the edrads it says that no fiducials are required, but when is save the file I found the following Fiducial Coordinates
Fiducial Coordinates: Number of Fiducials: 4 ID X[mm] Y[mm] 1 30 0 2 -30 0 3 0 30 4 0 -30 Any Explanations for their existence please.
أكثر...
I have created a generic digital camera file using Erdas 2015 with the following data in it:
LPS Camera File Version: 2.0 Camera Name: "generic digital camera" Camera Description: "generic digital camera" Focal Length [mm]: 35 Principal Point: x0 [mm]: 0 y0 [mm]: 0 Fiducial Coordinates: Number of Fiducials: 4 ID X[mm] Y[mm] 1 30 0 2 -30 0 3 0 30 4 0 -30 Radial Distortion Observations: Type: "Radial Distance" Number of Observations: 2 ID Distance[mm] Distortion[microns] 1 0 1 2 1 2 Radial Lens Distortion Coefficients: k0: 0 k1: 0 k2: 0 Extended Parameters: Type: "NONE"
All included data makes sense except the existence of the fiducials marks , As I now the fiducials are existed for farm cameras not for digital ones. And when I click on the fiducials tap in the edrads it says that no fiducials are required, but when is save the file I found the following Fiducial Coordinates
Fiducial Coordinates: Number of Fiducials: 4 ID X[mm] Y[mm] 1 30 0 2 -30 0 3 0 30 4 0 -30 Any Explanations for their existence please.
أكثر...