The analysis of mandibular growth changes around the pubertal spurt in humans has several important implications for the diagnosis and orthopedic correction of skeletal disharmonies. The purpose of this study was to evaluate mandibular shape and size growth changes around the pubertal spurt in a longitudinal sample of subjects with normal occlusion by means of an appropriate morphometric techni...

OBJECTIVE For a follow-up prostate biopsy procedure, it is useful to know the previous biopsy locations in anatomic relation to the current transrectal ultrasound (TRUS) scan. The goal of this study was to validate the performance of a 3-dimensional TRUS-guided prostate biopsy system that can accurately relocate previous biopsy sites. METHODS To correlate biopsy locations from a sequence of v...

The point based registration technique of Book stein can be seen as an interpolation problem With this technique an elastic transformation based on thin plate splines is determinedwhich maps the source and target land marks exactly to each other However in real applications the positions of the landmarks can only be determined ap proximately Therefore in this case an interpolation scheme is ina...

We investigated whether distortions of perceived distance and shape could be captured by a single continuous one-to-one transformation of the underlying space. In Experiment 1, the participants reached to touch points around the perimeter of spherical targets viewed at five different distances, to yield simultaneous measures of perceived distance and shape. Different participants reached while ...

We present a novel approach for cross-speed gait recognition. In our approach, the cyclic walking action is considered as residing on a manifold which is homeomorphic to a unit circle in the gait space. Thin Plate Spline (TPS) kernel-based Radial Basis Function (RBF) interpolation is used to fit the walking manifold for each gait sequence. The subject related kernel mapping coefficients are lea...

The tracking and reconstruction of myocardial motion is critical to the diagnosis and treatment of heart disease. Currently, little has been done for the analysis of motion in long axis (LA) cardiac images. We propose a new fully automated motion reconstruction method for grid- tagged MRI that combines Gabor filters and deformable models. First, we use a Gabor filter bank to generate the corres...

Descriptive, principal component (PCA), and thin-plate spline (TPS) analyses of theropod third metatarsals (MT III) definitively segregate the arctometatarsus from other theropod pedal morphologies and reveal variation within phylogenetic and functional subgroups of metatarsi. PCA indicates that the arctometatarsalian MT III differs in shape from the nonarctometatarsalian condition independentl...

To analyze changes in the soft tissue profile associated with an inverted L osteotomy, preoperative, early postoperative, and late postoperative lateral cephalographs of 13 children with craniofacial microsomia (mean age 9 +/- 2 years) were scanned, and 11 soft tissue landmarks were digitized (digitization errors insignificant; P > 0.05). Cephalometry, Euclidean distance matrix analysis (EDMA),...