
This directory contains the results of the evaluation of several
shape matcing methods on closed hand gesture shapes. The database
and the queries are also available at http://www.ced.tuc.gr/~petrakis.
Each directory contains the results obtained by a different method.
There are 20 files of answers for each method. Each file contains
the results of a query. The name of the file is identical to the
name of the query followed by ".seq". Each answer consists of three
numbers: the first is the distance between the query and the answer, 
the second is the name (id) of the retrieved database shape and the 
third entry is the evaluation of the answer: "ja:" means that the 
answer has been considered (by the human who carried out the evaluation) 
similar to the query, "nein:" means that the answer has been considered 
dissimilar. 

The competitor methods are:


* Fourier Descriptors (answers in directory "fourier"), 
Wallace TP and Wintz PA (1980), "An Efficient Three-Dimensional 
Aircraft Recognition Algorithm Using Normalized Fourier Descriptors.
Computer Graphics and Image Processing, 13:99--126.

* Geometric Moments (answers in directory "geomoments"), 
Hu MK (1962), "Visual Pattern Recogn. by Moment Invariants", 
IRE Trans. on Info. Theory}, IT-8:179--187. This is the 
original methods, Many variants and improvements of the this
methods have been also proposed. 

* Sequential Moments (answers in directory "seqmoments"),
Gurta L and Srinath MD (1987), "Contour Sequence Moments for the 
Classification of Closed Planar Shapes".
Pattern Recognition, 20(3):267--271.

* Non Optimal Dynamic Programming (answers in "DPnonoptimal"),
Milios E and Petrakis EGM (1998), "Shape Retrieval Based on 
Dynamic Programming". IEEE Trans. on Image Processing}, 9(1):141--147.

* Optimal Dynamic Programming (answer in "DPoptimal"),
Euripides G.M. Petrakis, Aristeidi Diplaros, Evangelos Milios,
"Matching and Retrieval of Distroted and Occluded Shapes Using 
Dynamic Programming", IEEE Transactions on Pattern Analysis and
Maching Intelligence (to appear), 
available from http://www.ced.tuc.gr/~petrakis 


Euripides G.M. Petrakis
Dept. of Electronic and Computer Engineering
Technical University of Crete
htpp://www.ced.tuc.gr/~petrakis
e-mail: petrakis@ced.tuc.gr



