Initial estimate is used for reshaping surfaces that are far away from the target surface. You can determine such surfaces by checking the markers on it and its appearance on a view other than the locked one.
If the surface
have all negative markers on it
appears off the target surface on any of the available images
is not connected to another surface that is already shaped correctly
you may want to use initial estimate command.
Initial estimate command corresponds to a long range search targeting multiple surfaces.
Single-segment surface is a smooth surface that you can unfurl using a single sheet of a soft material without any tears; otherwise the surface is called a multi-segment surface. Single-segment surfaces do not contain any creases or breaks. A ball or the torso of human body can be considered as a single-segment surface, while the whole surface of a cube is a multi-segment surface due to vertical creases at the edges of the cube. The total visible surface of an object and another object partially occluding it should also be considered as a multi-segment surface due to the breaks, which are discontinuities in space. It is impossible to unfurl two different objects with a single sheet.
Use the single-segment surface command for a surface
that does not contain very sharp creases,
that does not contains breaks as in the case of multiple objects.
Single-segment surface command corresponds to a medium range search targeting a single smooth surface.
Single-segment surface is a smooth surface that you can unfurl using a single sheet of a soft material without any tears; otherwise the surface is called a multi-segment surface. Single-segment surfaces do not contain any creases of breaks. A ball or the torso of human body can be considered as a single-segment surface, while the whole surface of a cube is a multi-segment surface due to vertical creases at the edges of the cube. The total visible surface of an object and another object partially occluding it should also be considered as a multi-segment surface due to the breaks, which are discontinuities in space. It is impossible to unfurl two different objects with a single sheet.
Use the muti-segment surface command for a surface
that contains very sharp creases,
that contains breaks as in the case of multiple objects.
Multi-segment surface command corresponds to a medium range search targeting multiple smooth surfaces.
Refine estimate command improves the quality of matching regions on the mesh. It can be used to after obtaining a fairly good estimate of the target surface. It corresponds to a narrow range search to let the mesh adapt to the fine details of the target surface.
Upsampling increases the resolution of the mesh. It is best to start image-based modeling with low-resolution meshes. Once you get a good estimate of the surface at a low resolution use the upsample mesh and refine estimate command to obtain a more detailed mesh to represent the target surface.
This command changes the topology of the mesh to capture sharp discontinuities in the surface. The edges are flipped as in the “Flip Edge” tool of the “Sandbox Plugin” based on the image matching quality.
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