Modification of the Viola-Jones approach for the detection of the government seal stamp of the Russian Federation
Daniil P. Matalov, Sergey A. Usilin, Vladimir V. Arlazarov · 2019
In this paper we present modification of the Viola-Jones approach for solving government seal stamp of the Russian Federation detection problem. The main contributions of the proposed modification are combining brightness and edge features as well as using L1 norm of the gradient of the image for calculating edge features. This modification allows to build classifiers which are more robust to noise, absence of a characteristic structure of contrasts and object's boundaries. The modification is experimentally compared to original Viola-Jones algorithm and showing better quality on different testing sets.