The PHANToM Used without Visual Guidance
نویسندگان
چکیده
The use of a PHANToM without visual guidance, as by blind people, means a heavier load on haptics. The aim of the paper was to compare accuracy and speed in identifying small virtual 3D objects explored with the PHANToM and analogous real objects explored naturally. The results for virtual objects were far from the results for real objects, which indicates that there is a large potential for improvements including training in the use of the specific exploration methods.
منابع مشابه
مقایسه میزان رضایت از زندگی دانشآموزان با و بدون آسیب بینایی
Purpose: The purpose of the present study was to compare the life satisfaction in students with and without visual impairment. Method: Sample of study includes 120 students (56 male and 64 female) in integration guidance and high school of Shiraz city in 2011-2012. Sixty of the students were with visual impairment and sixty of students were without visual impairment. Data were collected usin...
متن کاملVascular guide wire navigation with a magnetic guidance system: experimental results in a phantom.
PURPOSE To investigate the efficacy of a second-generation prototype magnetic guidance system in complex vessel phantoms versus conventional navigation in simulated interventional radiology procedures and to analyze procedure and fluoroscopy times. MATERIALS AND METHODS The magnetic guidance system consists of two focused-field permanent magnets on each side of the body that create a 0.1-T na...
متن کاملSafe Hulls
The visual hull is widely used as a proxy for novel view synthesis in computer vision. This paper introduces the safe hull, the first visual hull reconstruction technique to produce a surface containing only foreground parts. A theoretical basis underlies this novel approach which, unlike any previous work, can also identify phantom volumes attached to real objects. Using an image-based method,...
متن کاملReal Time Tomographic Reflection: Phantoms for Calibration and Biopsy
We aim to validate Real Time Tomographic Reflection (RTTR) as an image guidance technique for needle biopsy. RTTR is a new method of in situ visualization, which merges the visual outer surface of a patient with a simultaneous ultrasound scan of the patient’s interior using a half-silvered mirror. The ultrasound image is visually merged with the patient, along with the operator's hands and the ...
متن کاملGuidance of an ultrasound probe by visual servoing
A new visual servoing technique based on two-dimensional (2-D) ultrasound (US) image is proposed in order to control the motion of an US probe held by a medical robot. In opposition to a standard camera which provides a projection of the three-dimensional (3-D) scene to a 2-D image, US information is strictly in the observation plane of the probe and consequently visual servoing techniques have...
متن کامل