Start - Computer settings
Tutorial 1:
START - COMPUTER SETTINGS
Start - Image Import with Telemetry based Orientation
Tutorial 2:
START - IMAGE IMPORT WITH TELEMETRY AND GCP BASED ORIENTATION
Start - Image import witrh exif/gps based orientation
Tutorial 3:
START - IMAGE IMPORT WITH EXIF/GPS BASED ORIENTATION
Start - Image Import with GCP based orientation
Tutorial 4:
START - IMAGE IMPORT WITH GCP BASED ORIENTATION
3D model orientation with EXIF/GPS and Ground control points (GCP)
Tutorial 4.1:
ORIENTATION WITH EXIF/GPS AND GROUND CONTROL POINTS (GCP)
Volume calculation
Tutorial 5:
VOLUME CALCULATION
Digital orthophoto recalculation
Tutorial 6:
DIGITAL ORTHOPHOTO RECALCULATION
Volume calculation based on two surfaces
Tutorial 7:
VOLUME CALCULATION BASED ON TWO SURFACES
How to use Bounding Box
Tutorial 8:
HOW TO USE BOUNDING BOX
Point cloud editing tools
Tutorial 9:
POINT CLOUD EDITING TOOLS
Camera settings
Tutorial 10:
CAMERA SETTINGS
Waypoint flying DJI
Tutorial 11:
WAYPOINT FLYING DJI
Ground control targets setup
Tutorial 12:
GROUND CONTROL TARGETS SETUP
Profile tools
Tutorial 13:
PROFILE TOOLS
DOF merge
Tutorial 14:
DOF MERGE
Unknown camera parameters
Tutorial 15:
UNKNOWN CAMERA PARAMETERS
Contour lines
Tutorial 16:
CONTOUR LINES
Point Cloud Classification
Tutorial 17:
POINT CLOUD CLASSIFICATION
3D Measurements
Tutorial 18:
3D MEASUREMENTS
How to geotag images
Tutorial 19:
HOW TO GEOTAG IMAGES IN MISSION PLANNER

Tutorial 15:
UNKNOWN CAMERA PARAMETERS

Hi and welcome to 3Dsurvey tutorials.

Today we’ll show you how to start processing images without knowing camera parameters. In our case that is a Nexus 5 phone camera.

Go and Load images into 3Dsurvey.

Have a quick look and click Bundle Adjustment to bring the wizard on the screen.

3Dsurvey software always looks for camera parameters such as focal length and sensor width. Only focal length value of 3.97 is found in this case. As for the sensor width we have 2 options:

One is to Google your phone’s camera and set the CCD width value manually. Second option is to simply select ‘Estimate automatically’ and let the software calculate the best possible value.

After you’re finished with Bundle Adjustment, orientate the model based on ground control points or skip orientation and continue with reconstruction of the 3D model.

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