Probabilistic Model for Virtual Garment Modeling - Advances in Image and Graphics Technologies - page 209

Garment Parts Recommendation: The goal of our system is to facilitate the
garment modeling process, and garment parts are automatically presented to the user.
In our system, there are two ways to make recommendation. When the user select an
item from the garment part database, the system recomputed the probability of each
garment part style and present them to the user, or when the user specify the garment
style, for example, the user specify a suit, then flat-collar, inserted-pocket, button may
be recommended.
The recommendation decision is made according to the score computed by
Bayesian inference according equation(2). O is the subset of {,, , , ,} CSM PBT ,

, q is the garment part need to be assembled. For example, when the garment
body is observed, M is assigned to H-style, if the query part is collar, then we have:

q UU

∈

score C () = P C ( = x | M = − H style )

(5)

x

The collar style with the maximum score is recommended , namely:

arg max{ score C ( )}

(6) x

x

5 Part Assembly

The user can select a part p from the recommended list, and stich it to the existing
garment body. Our part stitching method can be handled with both closed loop
boundary mesh such as pocket, sleeve and unclosed none-loop boundary such as
collar. As for button, which has no boundaries, it can also work well.
Part Stitching. The user specifies the corresponding contact pair vertices and then the
garment part can be automatically snapped to the garment body. We propose a cage-
free method based on mean value coordinates to deform the source part. For both
closed loop and non-closed loop parts, we use the user specified boundary vertex in
the source mesh as the boundary vertex of the source cage. To preserve the normal of
the source surface, we add a vertex in the direction of the average normal of the
boundary vertex and another in the opposite direction with length of the source part's
radius R.

(a) (b) (c)
Fig. 3. (a) The pocket is the source part (b)The garment body is the target mesh to be
assembled. (c)The result garment.