Detail of Publication
| Text Language | Japanese |
|---|---|
| Authors | Tomohiro Nakai, Koichi Kise, and Masakazu Iwamura |
| Title | Use of Affine Invariants and Similarity Invariants in Fast Camera-based Document Image Retrieval |
| Journal | Technical Report of IEICE |
| Vol. | 105 |
| No. | PRMU-614 |
| Presentation number | PRMU2005-188 |
| Pages | pp.25-30 |
| Reviewed or not | Not reviewed |
| Month & Year | February 2006 |
| Abstract | We have already proposed a method of camera-based document image retrieval which utilizes perspective invariants called cross-ratios. However, the cross-ratios have defects that they are unstable against changes of positions of feature points. In this paper, we evaluate the use of affine invariants and similarity invariants which are considered to be more stable. Experimental results have shown that higher accuracy is obtained with affine invarinats even under perspective distortion. It is also shown that similarity invariants are not suitable for retrieval of largely distorted images since they are not robust to perspective distortion. |
- Following file is available.
- Entry for BibTeX
@InCollection{Nakai2006, author = {Tomohiro Nakai and Koichi Kise and Masakazu Iwamura}, title = {Use of Affine Invariants and Similarity Invariants in Fast Camera-based Document Image Retrieval}, booktitle = {Technical Report of IEICE}, year = 2006, month = feb, volume = {105}, number = {PRMU-614}, presenID = {PRMU2005-188}, pages = {25--30} }