October 30, Tuesday
12:00 – 13:00
Conjoining Gestalt Rules for Model Abstraction
Computer Science seminar
Lecturer : Dr. Andrei Sharf
Affiliation : CS, BGU
Location : 202/37
Host : Dr. Aryeh Kontorovich
We present a method for structural summarization and abstraction of
complex spatial arrangements found in architectural drawings. The
method is based on the well-known Gestalt rules, which summarize how
forms, patterns, and semantics are perceived by humans from bits and
pieces of geometric information. Although defining a computational
model for each rule alone has been extensively studied, modeling a
conjoint of Gestalt rules remains a challenge. In this work, we develop a
computational framework which models Gestalt rules and more importantly,
their complex interactions. We apply {em conjoining rules} to line drawings,
to detect groups of objects and repetitions that conform to Gestalt
principles. We summarize and abstract such groups in ways that
maintain structural semantics by displaying only a reduced number of
repeated elements, or by replacing them with simpler shapes. We show
an application of our method to line drawings of architectural
models of various styles, and the potential of extending the
technique to other computer-generated illustrations, and
three-dimensional models.