The high incidence rate of concussions in football provides a unique opportunity to collect biomechanical data to characterize mild traumatic brain injury. The goal of this study was to validate a six degree of freedom (6DOF) measurement device with 12 single-axis accelerometers that uses a novel algorithm to compute linear and angular head accelerations for each axis of the head. The 6DOF devi...

In this paper we develop the best homogeneous matrix transformation to fit two streams of dynamic six degree of freedom (6DOF) data. In particular, we compare object position and orientation results from two 6DOF sources. A problem that arises when comparing these two data streams is that they are not necessarily in the same coordinate system. Therefore, a method to transform one coordinate sys...

Six degrees of freedom (6DOF) data estimation has a wide range of applications in navigation, proximity operations, manufacturing and robotic control. This paper presents an optimal and computationally efficient 6DOF estimation algorithm using Modified Rodrigues Parameters. The analytical results of the estimation algorithm and also its computational results on a low power floating point DSP, t...

Novel technologies offer the potential for tracking and visualizing whole body movement in new ways which opens up possibilities for creating new forms of interaction. We highlight the problems and opportunities for designing for and the visualising of six degree of freedom (6DOF) motion tracking for absolute, two-handed input using the Nintendo Wiimote as our baseline platform and a playground...

Users of three-dimensional computer-aided design (CAD) and gaming applications need to manipulate virtual objects in up to six degrees of rotational and translation freedom (DOF). To date, no 3D controller provides one-handed 6DOF input with miniature size and low cost. This paper presents a prototype of the first one-handed 6DOF motion controller suitable for use in portable platforms such as ...

We present a novel interaction device tracked in 6 degrees of freedom by two commodity cameras. The inexpensive Light Chisel is statically illuminated with two LEDs, and uses no additional sensor (e.g. inertial or magnetic) or means of communication or synchronization. Its form factor is well suited for a screwdriver or chisel grip, allowing the Light Chisel to be rolled between the fingers. Th...

PURPOSE To establish a streamlined end-to-end test of a 6 degrees-of-freedom (6DoF) robotic table using a 3D printed phantom for periodic quality assurance. METHODS A 3D printed phantom was fabricated with translational and rotational offsets and an imbedded central ball-bearing (BB). The phantom underwent each step of the radiation therapy process: CT simulation in a straight orientation, pl...

Knee joint pain is a common symptom in obese individuals and walking is often prescribed as part of management programs. Past studies in obese individuals have focused on standing alignment and kinematics in the sagittal and coronal planes. Investigation of 6 degree-of-freedom (6DOF) knee joint kinematics during standing and gait is important to thoroughly understand knee function in obese indi...

BACKGROUND To improve the delivery of radiotherapy in gynecologic malignancies and to minimize the irradiation of unaffected tissues by using daily kilovoltage cone beam computed tomography (kV-CBCT) to reduce setup errors. METHODS Thirteen patients with gynecologic cancers were treated with postoperative volumetric-modulated arc therapy (VMAT). All patients had a planning CT scan and daily C...