Lachezar Lichev. "A NEW PHOTOGRAMMETRIC TOOL FOR THE AUTOMATIC DETECTION AND SEGMENTATION OF CIRCULAR OBJECTS IN LOW-QUALITY IMAGES." SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 15th International Multidisciplinary Scientific GeoConference SGEM2015, INFORMATICS, GEOINFORMATICS AND REMOTE SENSING, 2015. https://doi.org/10.5593/sgem2015/b21/s7.001