We present the first results from applying a recently proposed novel algorithm for the robust and reliable automatic extraction of lip feature points to an audio-video speech data corpus. This corpus comprises 10 native speakers uttering sequences that cover the range of phonemes and visemes in Australian English. The lip-tracking algorithm is based on stereo vision which has the advantage of m...

Valley splitting in finite barrier quantum wells" (2008). Birck and NCN Publications. Paper 148. The valley splitting ͑VS͒ in a silicon quantum well is calculated as a function of barrier height with both the multiband sp 3 d 5 s ‫ء‬ model and a simple two-band model. Both models show a strong dependence of the VS on barrier height. For example, in both models some quantum wells exhibit a sharp m...

The diet of the four larval instars of a Chaoboridae species of Lake Monte Alegre, was evaluated through the analysis of the crop content of individuals caught at night in the lake. Peridinium and zooflagellates were the major components of the diet of instars I and II, whereas microcrustaceans, especially the cladoceran Bosmina, were most important for late instars. When the preferential prey ...

Exploring why stochastic gradient descent (SGD) based optimization methods train deep neural networks (DNNs) that generalize well has become an active area of research. Towards this end, we empirically study the dynamics of SGD when training over-parametrized DNNs. Specifically we study the DNN loss surface along the trajectory of SGD by interpolating the loss surface between parameters from co...

BACKGROUND To adequately perform rehabilitation of edentulous patients by a complete removable dental prosthesis (CRDP) is from basic interest to dentists to understand the morphologic changes caused by re-establishment of a physiologic jaw relationship. Anthropometric analyses of standardized frontal view and profile photographs may help elucidate such changes. MATERIAL AND METHODS Photograp...

INTRODUCTION Few studies utilized cone beam computed tomography (CBCT) to evaluate soft tissue dimensions in malocclusion patients. The aim of this study was to analyze the three-dimensional (3D) soft tissue relationships of adult patients according to their gender and skeletal sagittal class using CBCT Materials and methods: The study sample consisted of 96 CBCT images of patients of both gend...

Open mouth posture and maxillary arch width were assessed annually for 4 years in a group of children. While younger children exhibited high levels of open mouth posture, this behavior decreased significantly over time. Racial and sex differences, as well as a race-by-time interaction were also evident. The children displayed a significant increase in maxillary arch width across time with sex a...