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Rapid automated landmarking for morphometric analysis of three-dimensional facial scans. 2017

Mao Li, and Joanne B Cole, and Mange Manyama, and Jacinda R Larson, and Denise K Liberton, and Sheri L Riccardi, and Tracey M Ferrara, and Stephanie A Santorico, and Jordan J Bannister, and Nils D Forkert, and Richard A Spritz, and Washington Mio, and Benedikt Hallgrimsson
Department of Mathematics, Florida State University, Tallahassee, FL, USA.

Automated phenotyping is essential for the creation of large, highly standardized datasets from anatomical imaging data. Such datasets can support large-scale studies of complex traits or clinical studies related to precision medicine or clinical trials. We have developed a method that generates three-dimensional landmark data that meet the requirements of standard geometric morphometric analyses. The method is robust and can be implemented without high-performance computing resources. We validated the method using both direct comparison to manual landmarking on the same individuals and also analyses of the variation patterns and outlier patterns in a large dataset of automated and manual landmark data. Direct comparison of manual and automated landmarks reveals that automated landmark data are less variable, but more highly integrated and reproducible. Automated data produce covariation structure that closely resembles that of manual landmarks. We further find that while our method does produce some landmarking errors, they tend to be readily detectable and can be fixed by adjusting parameters used in the registration and control-point steps. Data generated using the method described here have been successfully used to study the genomic architecture of facial shape in two different genome-wide association studies of facial shape.

UI MeSH Term Description Entries
D007091 Image Processing, Computer-Assisted A technique of inputting two-dimensional or three-dimensional images into a computer and then enhancing or analyzing the imagery into a form that is more useful to the human observer. Biomedical Image Processing,Computer-Assisted Image Processing,Digital Image Processing,Image Analysis, Computer-Assisted,Image Reconstruction,Medical Image Processing,Analysis, Computer-Assisted Image,Computer-Assisted Image Analysis,Computer Assisted Image Analysis,Computer Assisted Image Processing,Computer-Assisted Image Analyses,Image Analyses, Computer-Assisted,Image Analysis, Computer Assisted,Image Processing, Biomedical,Image Processing, Computer Assisted,Image Processing, Digital,Image Processing, Medical,Image Processings, Medical,Image Reconstructions,Medical Image Processings,Processing, Biomedical Image,Processing, Digital Image,Processing, Medical Image,Processings, Digital Image,Processings, Medical Image,Reconstruction, Image,Reconstructions, Image
D005145 Face The anterior portion of the head that includes the skin, muscles, and structures of the forehead, eyes, nose, mouth, cheeks, and jaw. Faces
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D055106 Genome-Wide Association Study An analysis comparing the allele frequencies of all available (or a whole GENOME representative set of) polymorphic markers to identify gene candidates or quantitative trait loci associated with a specific organism trait or specific disease or condition. Genome Wide Association Analysis,Genome Wide Association Study,GWA Study,Genome Wide Association Scan,Genome Wide Association Studies,Whole Genome Association Analysis,Whole Genome Association Study,Association Studies, Genome-Wide,Association Study, Genome-Wide,GWA Studies,Genome-Wide Association Studies,Studies, GWA,Studies, Genome-Wide Association,Study, GWA,Study, Genome-Wide Association
D056667 Biometric Identification A method of differentiating individuals based on the analysis of qualitative or quantitative biological traits or patterns. Biometric identification, which has applications in forensics and identity theft prevention, includes DNA profiles or DNA FINGERPRINTS; FINGERPRINTS; AUTOMATED FACIAL RECOGNITION; IRIS scan; RETINA scan; hand geometry; vascular patterns; automated VOICE pattern recognition; ultrasound of fingers; and X-RAYS. Automated Identity Recognition,Biometric Authentication,Authentication, Biometric,Identification, Biometric,Identity Recognition, Automated
D021621 Imaging, Three-Dimensional The process of generating three-dimensional images by electronic, photographic, or other methods. For example, three-dimensional images can be generated by assembling multiple tomographic images with the aid of a computer, while photographic 3-D images (HOLOGRAPHY) can be made by exposing film to the interference pattern created when two laser light sources shine on an object. Computer-Assisted Three-Dimensional Imaging,Imaging, Three-Dimensional, Computer Assisted,3-D Image,3-D Imaging,Computer-Generated 3D Imaging,Three-Dimensional Image,Three-Dimensional Imaging, Computer Generated,3 D Image,3 D Imaging,3-D Images,3-D Imagings,3D Imaging, Computer-Generated,3D Imagings, Computer-Generated,Computer Assisted Three Dimensional Imaging,Computer Generated 3D Imaging,Computer-Assisted Three-Dimensional Imagings,Computer-Generated 3D Imagings,Image, 3-D,Image, Three-Dimensional,Images, 3-D,Images, Three-Dimensional,Imaging, 3-D,Imaging, Computer-Assisted Three-Dimensional,Imaging, Computer-Generated 3D,Imaging, Three Dimensional,Imagings, 3-D,Imagings, Computer-Assisted Three-Dimensional,Imagings, Computer-Generated 3D,Imagings, Three-Dimensional,Three Dimensional Image,Three Dimensional Imaging, Computer Generated,Three-Dimensional Images,Three-Dimensional Imaging,Three-Dimensional Imaging, Computer-Assisted,Three-Dimensional Imagings,Three-Dimensional Imagings, Computer-Assisted

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