An algorithm for the image dependent control of the camera viewpoint is presented, which is applied to the automatic reconstruction of 3D objects. For computer animation applications, ”shape from silhouettes” using equally distributed viewpoints is an often used reconstruction technique. With respect to the local reconstruction errors, the use of equally distributed camera views is unfavourable...

Iterative reconstructions for clinical PET must run fast. We describe a clinical processing method based on sinogram rebinning, Fourier rebinning for the 3D to 2D data reduction, and iterative reconstruction using the attenuation-weighted OSEM method with a projector based on a gaussian pixel model. When this approach is used, multi-bed clinical oncology scans can be ready for diagnosis within ...

introduction : surgical repair of cleft palate with a bony bridge may offer some distinct advantages including a lower rate of fistula formation. the goal of this study was to evaluate the feasibility of surgically inducing cleft palate and reconstruction of the cleft with the use of bone morphogenetic protein-2 (bmp-2) in sheep. materials and methods : in the control group (two sheep), the cle...

abstract the leg is a complex district with functions of weightbearing support, stability, and motility. the management of extensive and complex defects is more challenging and often results in leg amputation or shortening. leg amputation is a severe mutilation that alters the patient’s work and social life by limiting ambulation and self-sufficiency. during a 3 years period we treated four pat...

Approximately 25% of all oral cavity carcinomas involve the lips, and the primary management of these lesions is complete surgical resection. Loss of tissue in the lips after resection is treated with a variety of techniques, depending on the extension and location of the defect. Here we review highly accepted techniques of lip reconstruction and some of new trials with significant clinical ...

background bladder reconstruction in the pediatric population is challenging for many reasons, including perioperative complications and readmissions. objectives on a national scale, determine readmission rates at 30, 60 and 90 days after bladder reconstruction in a pediatric population over a 7-year period, evaluating the influence of hospital and patient-specific variables. patients and metho...

conclusions using 3d ct scan to produce a prototype and reconstruct the mandible with a custom-made ti-mesh tray was useful. patient was followed up for 14 months. mandibular deviation was largely corrected. there was no complication in the donor site. no sign of extra or intra oral fistula, dehiscence or infection was detected. ti-mesh technique has three major advantages over other methods: i...

background: articular cartilage injuries are a common clinical problem at the time of acl reconstruction with an incidence rate of 16-46%. good results of acl reconstruction combined with the treatment of chondral lesions have been published in some studies. method: after statistical analysis 30 patients were selected and divided in 2 groups. theffirst group consisted of 15 patients wite isolat...