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Topics - uop360

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Bug Reports / upload to 4dmapper
« on: May 03, 2016, 03:07:49 PM »
there is probably a bug related to exporting of projects to 4dmapper.
I wrote about it here:

General / export projections & error (pix) for every camera
« on: April 26, 2016, 04:53:50 PM »
how can I export a number of projections and error (pix) for every camera?

General / boresight matrix
« on: April 21, 2016, 10:39:44 AM »

I would like to calculate boresight matrix between IMU and spherical camera.
I have postprocessed data from IMU and estimated values for camera rotations for spherical camera.
What is the difference between r11...r33 (3x3) in Omega Phi Kappa .txt file and transform (3x3 from 4x4) matrix in Agisoft .xml file? Do they relate to the same coordinate system?

General / xml (Export Cameras)
« on: April 17, 2016, 11:23:05 PM »

What is the difference between transformation matrix (3x3 taken from 4x4 in agisoft XML file) and (3x3) r11...r33 available in Omega Phi Kappa camera export?
Do they relate to the same coordinate system?


General / Omega Phi Kappa
« on: April 11, 2016, 01:21:40 PM »
I would like to get OFK for estimated cameras.
I use EPSG 2178 and I added corrections for
yaw: 180, pitch -90 roll -180 in camera calibration.
Are they taken into account when exporting txt file?
I work with spherical cameras.

General / Orientation of spherical cameras
« on: February 06, 2016, 11:30:43 AM »
Can you please explain how yaw, pitch, roll is defined for spherical cameras mounted on a top of a car?
How the axis of the image  is defined in relation to equirectangular format?

General / Yaw Pitch Roll + Omega Pho Kappa
« on: February 06, 2016, 11:27:47 AM »
Could you please illustrate yaw,pitch,roll + omega, phi, kappa that is used in Photoscan?
Pix4D have nice illustrations:

I only found this description in the manual (no images):
Rotation angles in PhotoScan are defined around the following axes: yaw axis runs from top to bottom,
pitch  axis  runs  from  left  to  right  wing  of  the  drone,  roll  axis  runs  from  tail  to  nose  of  the  drone.  Zero
values of the rotation angle triple define the following camera position aboard: camera looks down to the
ground, frames are taken in landscape orientation, and horizontal axis of the frame is perpendicular to the
central (tail-nose) axis of the drone. If the camera is fixed in a different position, respective yaw, pitch,
roll values should be input in the camera correction section of the Settings dialog. The senses of the angles
are defined according to the right-hand rule


General / EXR vs BMP panoramas
« on: July 08, 2014, 09:44:03 PM »

I am new in this forum.
I created an interior of a room using spherical images and I tried to import EXR (32bit) images and compare my results with BMP (8bit). I noticed that 3d textured model created using EXR is too bright and the total error is 1.3cm whereas in the case of 8bit BMP files the textured 3d model is too dark and the total error is 1.6cm. So the difference is small, but I get better visual results with 8bit images. I noticed that Photoscan found about 350 more points (out of approx. 100 000)in the case of EXR files.

Is it worth using EXR (HDR) files?

Is it better to create tone mapped panoramas rather than use EXR?

I created EXR in Photoshop where I saved HDR files into EXR.

I am waiting for your help.

Feature Requests / Calibration (spherical camera)
« on: July 08, 2014, 09:12:52 PM »
I propose to add calibration data from PTGUI ( or Hugin (free software) in Calibration window when adding spherical cameras.

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