| Presentation | 2007-03-16 A Classifier of Similar Characters using Compound Mahalanobis Function based on Difference Subspace Junichi HIRAYAMA, Hidehisa NAKAYAMA, Nei KATO, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | To distinguish similar characters, it is preferable to construct a classifier using a projective feature space which differentiates two similar categories. The classifier of CMF has been proposed for a discriminant function specialized in similar characters recognition based on a difference vector. In the CMF, a subspace is constructed by some eigenvectors, that corresponds to the smallest eigenvalues of all eigenvectors, which construct the full subspace, is applied as projective feature space. A difference vector of two class-mean feature vectors are assumed as the difference between two similar categories, the CMF is constructed by projecting a feature vector onto this difference vector. In this paper, we propose new discriminant function expanding the CMF. In proposed method, we treat the Difference Subspace, which is difference between two subspaces as difference between two similar categories, and construct a new discriminant function by projecting a feature vector onto the Difference Subspace. The efficiency of the proposed new discriminant function has been demonstrated in similar characters recognition through extensive experiments on hand-written Japanese characters derived from the ETL9B database. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Handwritten Recognition / Similar Character / Compound Mahalanobis Function / Difference Subspace |
| Paper # | PRMU2006-268 |
| Date of Issue |
| Conference Information | |
| Committee | PRMU |
|---|---|
| Conference Date | 2007/3/9(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Pattern Recognition and Media Understanding (PRMU) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Classifier of Similar Characters using Compound Mahalanobis Function based on Difference Subspace |
| Sub Title (in English) | |
| Keyword(1) | Handwritten Recognition |
| Keyword(2) | Similar Character |
| Keyword(3) | Compound Mahalanobis Function |
| Keyword(4) | Difference Subspace |
| 1st Author's Name | Junichi HIRAYAMA |
| 1st Author's Affiliation | Graduate School of Information Sceinces, Tohoku University() |
| 2nd Author's Name | Hidehisa NAKAYAMA |
| 2nd Author's Affiliation | Graduate School of Information Sceinces, Tohoku University |
| 3rd Author's Name | Nei KATO |
| 3rd Author's Affiliation | Graduate School of Information Sceinces, Tohoku University |
| Date | 2007-03-16 |
| Paper # | PRMU2006-268 |
| Volume (vol) | vol.106 |
| Number (no) | 606 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |