| タイトル | Improvement of convergence and stability in moving object extraction by the level set method |
| 本文（外部サイト） | http://dspace.lib.kanazawa-u.ac.jp/dspace/bitstream/2297/19926/1/TE-PR-IMAMURA-K-424.pdf |
| 参考URL | http://hdl.handle.net/2297/19926 |
| 著者（英） | Imamura, Kousuke; Oota, Tomohiro; Hashimoto, Hideo |
| 発行日 | 2009 |
| 発行機関など | IEEE = Institute of Electrical and Electronics Engineers |
| 刊行物名 | ISPA 2009 - Proceedings of the 6th International Symposium on Image and Signal Processing and Analysis |
| 開始ページ | 424 |
| 終了ページ | 429 |
| 刊行年月日 | 2009 |
| 言語 | eng |
| 内容記述 | Semantic object extraction from a video sequence is an indispensable technique in new content-based applications, such as in the international standards MPEG-4 and MPEG- 7. In the present paper, we propose a technique that extracts the shape of moving objects from a video sequence with a stationary background by the level set method. In the proposed method, two concepts are incorporated into a novel speed function of the level set method in order to improve convergence and stability. The first concept is the object map, which represents the outline of object regions and the background. The speed function is changed using the object map in order to improve convergence. The second concept is the contour potential energy, which represents the energy in the direction of an object's contour. The efficiency of the proposed method for moving object extraction is demonstrated through computer simulations. |
| 資料種別 | Conference Paper |
| 著者版フラグ | publisher |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/610417 |
