06/05/31 01:36:13
>>335
Direct least-squares fitting of ellipses
Andrew W. Fitzgibbon, Maurizio Pilu, and Robert B. Fisher
IEEE Transactions on Pattern Analysis and Machine Intelligence,
21(5), 476--480, May 1999
URLﾘﾝｸ(research.microsoft.com)
URLﾘﾝｸ(research.microsoft.com)
一応 Java 実装もあるけどコードがちょっと汚いかも。