An active-contour-interpolation approach is proposed for semi-automatic video object generation. In this approach, user can de ne the contour of the same video object on multiple frames and the computer interpolates the missing contours automatically. Typical active contour model is adapted and the contour interpolation problem is decomposed into two directional contour tracking problems and a ...

Introduction: The most common type of velopharyngeal valve (VPV) closure is a matter of controversy.The aim of this study was to estimate the most common type of VPV closure, including identification of the type and grade of VPV closure among Egyptian children.  Materials and Methods: This study included patients who were candidates for adenotonsillectomy. In these cases, video-nasoendoscopy an...

Scoliosis, spinal deformity and vertebral spondylolisthesis are disorders with high incidence, which seriously affect people’s lives health. CT is an important medical tool for the detection diagnosis of provides a large amount pathologically valid information in various clinical practices such as spine pathology assessment computer-assisted surgical interventions. As presents long span, comple...

Contour line is the main linear feature on topographic maps. Extraction of contour lines is tedious and time-consuming process, and is still an interesting problem. A novel method for extraction of contour lines from paper-based topographic maps is presented in this paper. In our approach, we firstly segment color topographic maps for achieving the binary image of brown color contour lines. The...

I appreciate the insight provided by this letter to the authors regarding the issue of sagittal malalignment in this case report. Although the case report was directed at the postoperative seroma and potential relationship with the use of vancomycin, andwas not related to the sagittal alignment per se, the input provided in this case ismuch appreciated. In fact, I went back and remeasured the p...