![SPIE Proceedings [SPIE IS&T/SPIE Electronic Imaging - Burlingame, California, USA (Sunday 3 February 2013)] Document Recognition and Retrieval XX - Rotation-robust math symbol recognition and retrieval using outer contours and image subsampling]()
SPIE Proceedings [SPIE IS&T/SPIE Electronic Imaging - Burlingame, California, USA (Sunday 3 February 2013)] Document Recognition and Retrieval XX - Rotation-robust math symbol recognition and retrieval using outer contours and image subsamplingZhu, Siyu; Hu, Lei; Zanibbi, Richard; Zanibbi, Richard; Coüasnon, Bertrand · 2013