fokithis.blogg.se - Autopano pro remove nadir

#Autopano pro remove nadir how to
#Autopano pro remove nadir trial
#Autopano pro remove nadir series

Tools sites (some with lots of documentation)

#Autopano pro remove nadir how to

Tutorial on how to make and use a virtual tripod (philopod).Video on how to use a virtual tripod to shoot handheld.

#Autopano pro remove nadir series

How To at Panoguide site – a series of how to guides.

Another series of tutorials for the whole process.

Creating 360 enfused panorama with Hugin.

Mending parallax errors on GIMP with shear tool.

Understanding perspective and parallax problems.

Tilman Bremer tutorials on hardware DIY, shooting, stitching, etc.

John Houghton page: lots of tutorials, references, etc.

Finding the No Parallax Point with a paper, tape and clip.

My short recipe for making the pictures with the DJI Phantom quadcopter.

How to cover the nadir with the clone tool.

Article at the BSD Magazine Jan/2013 (PDF starting on page 26).

I usually do more importance to produce things in Portuguese, as there are already plenty more in English. Here I list English references, mine and many others that helped me to learn. I always try to share what I know and my way of doing those pictures, but my main efforts are to produce Portuguese documentation, as there is already very much material in English, but sometimes I take the time to translate my things. And this is the time it will take when you have a very good experience with it. I am able to make one during a one hour speech, besides explaining the subject and highlighting the main tips and tricks of the workflow, but you might expect to spend around 3 hours to make all the final adjustments and publish the job. An initial stitching can be fast if you shoot well. When learning you will see that it is possible to spend some hours until you reach a desirable result. You can hire someone to do it for you (me for example ) or you can learn how to do it yourself. * H! ?) P0 w.Making 360º panoramic photographs can be a little complex. After each modification, start from step 1 mentioned above, until the optimizer reports a good result.

#Autopano pro remove nadir trial

Sometimes a little trial and error is necessary, by removing some control points and adding others. Adding a few more control points, spaced across the entire nadir surface (don't forget to place control points on distant features on the nadir surface), may further help the optimizer in finding the VP parameters. A single faulty point is enough to break the optimization. If this still doesn't help, review the control points of the nadir image and make sure you didn't accidentally misplace one. Now enable yaw and pitch optimization for the nadir image and run the optimizer again.

If the optimizer reports a good or 'not bad' result, it has probably found the right position of the nadir image.Enable 'use control points of:' for all images. On the Optimizer tab, disable the optimization of yaw and pitch of the nadir image and enable viewpoint optimization of the nadir image.Reset the 5 viewpoint parameters of the nadir image to 0. Set the pitch of the nadir image to -90, and the yaw to 0.If the optimizer still reports a bad result, try the following: # f- P$ W% H- S" R& A7 k Enable 'use control points of:' for the nadir image, enable Viewpoint optimization for the nadir image, and optimize again. Now the optimizer should have a good starting point.This should give a good result, and set the lens parameters to the correct values. Uncheck 'use control points of:' for the nadir image, leave Viewpoint optimization disabled and optimize again.This will give a bad optimization result (similar to the bad result shown above), but brings the nadir image into the appropriate orientation. Optimizer: disable Viewpoint optimization for all images, enable 'use control points of:' for all images and optimize.In the Image Parameters tab set all VP values to zero.Unlike other artefacts like barrel distortion, correcting for parallax errors is impossible the best one can do is attempting to mask the misalignments by retouching the stitched panorama afterwards.

Even worse: the optimizer will get severely confused, unable to determine the camera and lens properties, causing misalignments in other areas of the panorama as well. While this may be an extreme example, in practise even camera movements of only a few centimeters may result in visible parallax if there are nearby objects in the scene.Ħ `) |' C6 |, t" \$ _+ B8 k/ h( ZIt's not difficult to see that parallax is a problem when stitching photographs: a stitcher can either align the objects in the foreground or the objects in the background, but not both at the same time. As a result the buildings in the background have moved relative to the position of the buildings in the foreground.

! }4 t% L+ }' ^) w Q/ DThese photos were taken from two different camera positions.