Elad Walach PIRS partial intrinsic reflectional symmetry IRSA Intrinsinc reflection symmetry axes.

Partial intrinsinc reflection symmetry of 3d shapes

Partial Intrinsinc reflection symmetry of 3d shapesElad Walach

Reflection symmetry

Partial

intrinsic

ConceptsPIRSpartial intrinsic reflectional symmetry

IRSAIntrinsinc reflection symmetry axes

overview

In The beginning: prst

PRST = planar reflective symmetry transform 7PRST: Voting

Lets get 3dLines are not that simple!

No shape boundary.. We only have the manifold

Cant easily calculate the reflectionIRSA SCORE

Lets vote

Lets vote (II)

Four Filters of the Apocalypse

Similarity filterIs only p,q depndantHow similar is the point environment

Distance filter

Locality

Axial symThe final filter makes sure the symmetry is axial instead of point symmetry

Pool of all points who passed the filters so-far

Four Filters of the Apocalypse

IRSA Curves for the massesApplications : Segmentation

Results

More Results

Application: Part Repair

ConclusionPartial intrinsinc reflection symmetry of 3d shapes

Uses:SegmentationPart repair