MATLAB: How to convert from 2D (RGB image) to 3D

3dImage Processing Toolboxvolume visualization

I have a database of RGB, JPEG images where each image has a size of 1398 x 1611 x 3. Original images are in 2D. My intention is to build a 3D model from these images. Couple of questions came up to my mind while struggling with this issue:
1. I want to give the spacing to each slice.But how? (what i meant here is: to give the slice thickness(z direction),
calculate [real width of the image (mm)/image width (pixel)] (x direction),
[real height of the image (mm)/image height (pixel))] (y direction)
2. Then build a 3D model by stacking those 2D images. Does MatLab support 3D modeling? Atleast a 3D mesh would be fine.
Can anyone help me with this? I really appreciate any help.

Best Answer

A color image is #D already. Two lateral dimensions and then the third dimension for the 3 different color planes. To make a stack of these, you'd need a 4D array.
MATLAB does not have great 3D volume visualization. You're pretty much limited to cutaway views and isosurfaces. To get true volume visualization you'd have to use a program like Avizo.