Neural Process Lett (2008) 28:97–111 DOI 10.1007/s11063-008-9084-y Robust Handwritten Character Recognition with Features Inspired by Visual Ventral Stream Ali Borji · Mandana Hamidi · Fariborz Mahmoudi Published online: 31 August 2008 © Springer Science+Business Media, LLC. 2008 Abstract This paper focuses on the applicability of the features inspired by the visual ventral stream for handwritten character recognition. A set of scale and translation invariant C2 features are first extracted from all images in the dataset. Three standard classifiers kNN, ANN and SVM are then trained over a training set and then compared over a separate test set. In order to achieve higher recognition rate, a two stage classifier was designed with different preprocessing in the second stage. Experiments performed to validate the method on the well- known MNIST database, standard Farsi digits and characters, exhibit high recognition rates and compete with some of the best existing approaches. Moreover an analysis is conducted to evaluate the robustness of this approach to orientation, scale and translation distortions. Keywords Optical character recognition · Handwritten character recognition · Visual system · Visual ventral stream · HMAX · C2 features 1 Introduction Handwritten character recognition is still a challenging problem for many languages like Farsi, Chinese, English, etc. Developing robust optical character recognition (OCR) tech- niques would be very rewarding in today technology. Some of the successful applications A. Borji (B ) School of Cognitive Sciences, Institute for Studies in Theoretical Physics and Mathematics, Niavaran Bldg., P. O. Box 19395-5746, Tehran, Iran e-mail: borji@ipm.ir M. Hamidi Computer and Information Technology Department, Azad University Branch of Zarghan, Booali Boulevard, Azad University Street, P. O. Box 73415-314, Zarghan, Iran F. Mahmoudi Computer, Engineering and Information Technology Department, Azad University Branch of Qazvin, Qazvin, Iran 123