PMID- 20108870 OWN - Quintessenz Verlags-GmbH CI - Copyright Quintessenz Verlags-GmbH OCI - Copyright Quintessenz Verlags-GmbH TA - Int J Comput Dent JT - International Journal of Computerized Dentistry IS - 2702-9514 (Electronic) IS - 1463-4201 (Print) IP - 4 VI - 12 PST - ppublish DP - 2009 PG - 327-343 LA - en TI - Developing an Automatic Lateral Cephalometric Landmark Identification Program and Evaluating its Performance FAU - Rakhshan, Vahid K. AU - Rakhshan V FAU - Rakhshan, Hamid K. AU - Rakhshan H FAU - Sheibaninia, Ahmad AU - Sheibaninia A CN - OT - lateral cephalometry OT - software OT - automatic landmark identification AB - Purpose: To evaluate the accuracy of detecting cephalometric landmarks automatically by computer. Materials and Methods: Digital image processing algorithms (edge-based and morphological) in addition to mathematical algorithms (knowledge-based) were used to develop a program for the identification of 15 lateral cephalometric landmarks on digital cephalograms. Results: The automatic landmark identification system was clinically acceptable (p > 0.05 comparing with 2-mm error range) for five landmarks. Conclusion: The automatic landmark identification is accurate for only some landmarks. Additional studies may be necessary to improve this method. AID - 833427