In laparoscopic surgery, surgeons find particular difficulties related to the operation technique. Due to restricted view, lack of depth information from the monocular endoscope and limited degree of freedom, surgeons find their movements impeded. A support system that provides improved laparoscopic vision would help to overcome the difficulties. If… (More)
– The performances of eight satellite SAR ship detection systems (most of them operational) are compared, by running a benchmark test on RADARSAT images of various modes. No single system is best under all circumstances.
We have been developing a virtual surgery system that is capable of simulating surgical maneuvers on elastic organs. In order to perform such maneuvers, we have created a deformable organ model using a sphere-filled method instead of the finite element method. This model is suited for real-time simulation and quantitative deformation. Furthermore, we have… (More)
Precise measurements of geometry should accompany robotic equipments in operating rooms if their advantages are further pursued. For deforming organs including the liver, intraoperative geometric measurements play an essential role in computer surgery in addition to pre-operative geometric information from CT/MRI. The laser-scan endo-scope system acquires… (More)
The purpose of this study was (1) to demonstrate a computer-assisted gait analysis system that can visualize the locus of the dynamic loading axis on the proximal tibia joint surface, and (2) to assess the accuracy of this system in a patient with bilateral knee osteoarthritis (OA). This system uses force plate data, CT skeletal structure data and motion… (More)
Mandibular movement findings have not always been useful in clinical, even though measuring techniques have improved. This is because there is no method to evaluate condylar movement including the position of the temporal bone. In this study, we have attempted to apply 3-dimensional imaging to mandibular movement data, and have developed a 4-demensional… (More)