General 3D Geometry

Question 1

3D - What are the possible problems with 3D reconstruction from a single-view image?

Answer 1

uncertainties in object reconstruction
intricate object details reconstruction
computation time and memory constraints

Question 2

3D - What is - photometric consistency estimation?

Answer 2

In computer vision, photo-consistency determines whether a given voxel is occupied.

Question 3

3D - What is the problem with multi-view stereo 3D reconstruction?

Answer 3

Similar sensors data is needed to be collected.
MVS relies on feature matching across views. Textureless, reflective, or occluded areas may result in poor correspondence, causing holes, noise, or uneven surfaces in the final model.

Question 4

3D - What is the depth-based 3D reconstruction technique?

Answer 4

It is a technique to use a point-cloud with matching features between images.

Question 5

3D - What is the problem with the depth-based 3D reconstruction technique?

Answer 5

Poor feature matching and low-contrast artefacts can be presented in the reconstruction.