Greetings from a new user! Need some advice on proper camera alignment.

[NikhilR]

Hello!
I've been using Agisoft for around 1 week with a single camera setup.

Camera used: Sony NEX-5N
Pictures taken : 48

Reference used for setup :
Photogrammetry RJ Pass 4
https://vimeo.com/104761850

Setup:
Three lights and 1 white screen behind seated subject.

Problems with alignment

1. Not all images (cameras) are aligned.
2. Many cameras share the same position.
3. Many areas not captured

I read that there needs to be sufficient overlap between images, though I find that agisoft seems to align the images at random, completely missing scanning some areas of the subject.
(post 1/2)

[NikhilR]

Post 2/2

1.Sparse Point Cloud
Settings
Key Points: 0
Tie Points: 0

2. Dense Cloud
Quality: Medium
Depth Filtering: Moderate

3.Final Textured Mesh (Settings default, mesh count 2000000)
Looks good from the front but the whole back of the subject is missing (since agisoft aligned all cameras to the front (see 4.Solid)

What would I need to do to achieve proper alignment (such as in the video here: https://vimeo.com/104761850

[FLuca]

Maybe you should try with a turning chair instead of turning around you subject.
Because you have only 3 lights, the back may be under-exposed and the matching fails.
To have better camera alignments you can also try this:
-load pictures
-lunch align process
-keep few cameras pointing on the same area and reset the alignment of the others
-re-align these cameras one by one

one you have all camera aligned (or almost), you can produce a low or medium resolution cloud, clean it, build the mesh and generate mask from this model. then you restart the align process by enabling the mask feature and you should get better alignment. generate the cloud (with or without mask depending on the mask quality), clean it from disperse points and optimize the camera.

Anyway, scanning a face or body with only 1 cam is challenging and don't expect to have perfect results.
Good luck