幼児向け折り紙作品の創作支援システム

概要

本稿では，4回以下の折り操作で作ることができる単純な折り紙作品を，新しく創作するためのシステムを提案する．本システムは，あらかじめ4回までの折り操作で作ることができる折り紙の形を列挙し，それをデータベースに蓄えておく．ユーザが動物の顔など，折り紙で作りたい形をシステムに入力すると，それに類似した形をデータベースから検索し，折り方を提示する．近年の計算機の性能の向上により，このような力づくのアプローチでも目的を達成することが可能となった．幼児向けの折り紙作品に見られる「目の追加」を実装するなど，より実用的なシステムを構築した．

Abstract

Techniques for creating complex origami pieces have been developed based on studies of mathematics of origami in recent years. However, the creation of simple origami pieces made with a few folds which are required for children who don't have ability to precisely control their fingers has not been studied. In this paper, we propose a new system for generating new simple origami pieces they can be folded by four or less steps. Our system enumerates all possible origami shapes which can be folded by four steps, and then stores them in a database in advance. When the user inputs the shape he or she wants to create, such as face of an animal, the system retrieve origami pieces similar to the input. Then the folding process is displayed. This brute-force approach became possible by recent progress of performance of common PCs. We have made our system more practical by optionally allowing users to lay "eyes" on origami pieces, as often seen in origami pieces for children.

Publication

• 鶴田直也, 三谷純, 金森由博，福井幸男, "形状列挙に基づく幼児向け折り紙作品の創作支援システム", 折り紙の科学, 2(1), pp.33-44, 2012.
• 鶴田直也, 金森由博，福井幸男, "幼児向け折り紙作品の創作支援システム", インタラクション2011 論文集, IPSJ Symposium Series Vol.2011, No.3, pp.49-56, 2011 (査読あり) pdf