Topics

1

General / dji phantom 4 fcc330 lens correction profile+parameters for photoscan

« on: June 12, 2016, 08:27:02 PM »

Hi
The Adobe Lightroom has new update in June. I have uploaded the lens correction profile files of dji phantom 4 fcc330.

How should I fill the Calibration parameters list in photoscan for all the images taken by phantom 4? What are the values for the following parameters:

fx, fy

cx, cy

skew

k1, k2, k3, k4

p1, p2, p3, p4

I am new to this field, and I feel there are parameters missing from the .lcp files.

Thank you in advance!

2

General / dji phantom 4 lens distortion correction+customized shooting time interval

« on: June 06, 2016, 09:38:35 AM »

Hi guys,
I bought a dji phantom 4 in order to generate high resolution DEM.

I took some images yesterday, and can not align them well. Only 7 of 30 images are aligned. All of them were labeled NC, which means not calibrated (from the manual).

I tried to get an Adobe Lightroom, but there is no lens distortion correction for phantom 4.

My questions are:
1)Is it necessary to make lens distortion correction before importing the images to photoscan?

2)How much will the final result be affected without these correction? If the errors of DEM due to this issue are within several centimeters, I don't think it is a big issue.

An separate question is (Maybe I should ask in Dji's forum, but I would like to try here as well):
The minimum time interval for jpg is 5 seconds, while 10 seconds for raw file. However, we need 80% forward overlap, this time interval is not small enough. Is there a way to solve this problem?

Thanks in advance!