Geoinformation Science Journal, Vol. 10, No. 1, 2010, pp: 61-72 61 CAMERA CONFIGURATION FOR ACCURATE CRANIOFACIAL MAPPING USING PHOTOMODELER SCANNER Nor Azira Alias, Zulkepli Majid and Halim Setan Photogrammetry and Laser Scanning Research Group Faculty of Geoinformation Science and Engineering Universiti Teknologi Malaysia E-mail: nazira7@siswa.utm.my, zulkepli@utm.my, halim@utm.my ABSTRACT PhotoModeler (Eos Systems, Inc. Canada) Scanner contains new capabilities in a module called Dense Surface Modeling (DSM). The DSM exploits photo pairs to generate massive number of 3D points, thus automatically creates a point cloud similar to the output from laser scanning technique. The DSM technology required at least two images (stereo pair) from digital cameras to generate the three-dimensional (3D) model. Camera setup is an important factor for capturing high-accuracy data because several pairs of synchronized digital cameras are needed to capture the images for craniofacial area of subject. Consequently, a research was carried out to determine an optimal camera configuration for capturing high-accuracy point cloud. The photogrammetric data captured was evaluated using the laser scanned data as the bench mark. This paper provides a detailed discussion of the designed camera configuration, the procedures to process stereo-pair images and the evaluation of the 3D model visualization reconstruction using photo-based scanned and laser scanned data. Keywords: Craniofacial mapping, camera configuration and PhotoModeler Scanner 1.0 INTRODUCTION Currently, high-accuracy and simple method has become the important thing that be considered in modeling industry especially in 3D modeling application. It was because high-accuracy method can produce the better 3D model and 3D measurement result to user in any fields. Moreover, simple method makes it the process easier and time safely and also carry out it in a cost-effective and efficient. According to Bruner et.al (2000) and Liu et.al (2000), 3D measurements with a stereo camera system are an established standard practice and are used in a wide range of different applications. In order that, digital photogrammetric approach seem to be more stunning with fast, accurate and realistic method to produce photorealistic 3D model. Mitchell and Newton (2002) has stated that history of attempts to apply photogrammetry to the measurement of the human body is almost as long as the history of photogrammetry itself. Besides, photogrammetric is also known as non-contact measurement method which suitable to use in variety of humans case studies such as craniofacial mapping applications (Chong et. al, 2004; Majid et. al, 2005; Majid and Chong, 2005; Majid et.al 2006), dentistry, neurology and others. With combination from PhotoModeler Scanner (PMS) and stereo cameras configuration system would be an excellent combination to achieve such accuracies in modeling and measurement for craniofacial area. Furthermore, PMS provides the tools able to create ISSN 1511-9491© 2009 FKSG