Tomographic velocity estimation of a three-dimensional (3D) anomaly as a function of time is implemented by the simultaneous iterative reconstruction technique (SIRT) using synthetic observed travel times as data. Rays are retraced every 6-7 iterations to ensure consistency between rays and velociti
✦ LIBER ✦
3D imaging of lightning channel and leader progression velocity
✍ Scribed by Sachiko Yoshihashi; Ichiro Kawasaki; Kenji Matsuura; Hitoshi Isoda; Yasuo Sonoi
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 259 KB
- Volume
- 137
- Category
- Article
- ISSN
- 0424-7760
- DOI
- 10.1002/eej.1091
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## Abstract ## Purpose To improve 3D volume‐selective turbo spin–echo (TSE) arterial wall imaging by introducing velocity phase sensitivity to the sequence. ## Materials and Methods Slow or recirculating blood may give incomplete nulling in 3D vessel wall imaging, hindering differentiation betwe