Introduction Idiopathic scoliosis is a lateral deviation of the spine of unknown origin. Initiation and progression of AIS may result from vertebral column overgrowth through a lordoscoliotic maladaptation of the spine to the subclinical (functional) tether of a relatively short spinal cord. Implications for treatment however have not yet been derived from the findings as published so far with ...

The astrometric calibration of the Sloan Digital Sky Survey is described. For point sources brighter than r ∼ 20 the astrometric accuracy is 45 milliarcseconds (mas) rms per coordinate when reduced against the USNO CCD Astrograph Catalog, and 75 mas rms when reduced against Tycho-2, with an additional 20 – 30 mas systematic error in both cases. The rms errors are dominated by anomalous refracti...

The paper proposes a novel interleaved AC-DC ZCS-PWM boost converter that requires the use of just single active auxiliary switch to assist in turning off main power circuit switches with ZCS. can be turned on and ZCS its allows operate without an increase peak current or voltage stress. is for much shorter time than most other converter, which at higher levels previously proposed switch. conve...

Overview The COSMIC Data Analysis and Archival Center (CDAAC) at UCAR has processed radio occultation data from the GPS/MET, CHAMP, and SAC-C missions in post-processing and a near real time mode of operation for CHAMP. The GPS data processing at the CDAAC is performed with the Bernese v5.0 software package. The COSMIC mission requirement for LEO velocity uncertainty is 0.1 mm/s 3D rms. The rec...

We show examples 3D reconstructions resulting from the depth estimates generated by our proposed method. We sort the 654 test images according to the RMS error and show 20 scenes each with the lowest (Figure 2,3), medium (Figure 4,5) and highest (Figure 6,7) error. The accuracy of our method according to the RMS error aligns roughly with the depth range in the image. For example, most depths in...

This paper presents a new method for the calibration of biplanar radiography that makes possible performing 3D reconstructions of the spine using conventional radiological systems. A novel approach is proposed in which a measuring device is used for determining focal distance and have a rough estimation of translation parameters. Using these data, 3D reconstructions of the spine with correct sc...

BACKGROUND The use of three-dimensional (3D) surface imaging is becoming more popular and accepted in the fields of Medicine and Dentistry. The present study aims to develop a technique to automatically localise and quantify soft-tissue asymmetry in adults using 3D facial scans. This may be applied as a diagnostic tool to monitor growth and dynamic changes and to evaluate treatment outcomes. ...