Recovery of Functional Mobility with a Long-Term Nursing Facility Patient Utilizing the Fascial Distortion Model: A Case Study

Functional immobility has demonstrated a higher risk of all-cause mortality in geriatric population. It is noted that musculoskeletal pain is one major factor involved with geriatric functional immobility. The fascial distortion model (FDM) utilizes pathognomonic physical gestures to diagnose and treat musculoskeletal pain. In this case study, a long-term nursing facility patient with significantly prolonged wheelchair-to-bed transfer presented with several upper and lower extremity fascial distortions. After FDM treatment, the patient demonstrated a moderate return of functional mobility. This case presents the utility of FDM treatment in cases of decreased functional mobility due to musculoskeletal pain as well as treatment for patients in skilled nursing facility settings.

A REVIEW OF THE ONE-PARAMETER DIVISION UNDISTORTION MODEL

The one-parameter division undistortion model by (Lenz, 1987) and (Fitzgibbon, 2001) is a simple radial distortion model with beneficial algebraic properties that allows to reason about some problems analytically that can only be handled numerically in other distortion models. One property of this distortion model is that straight lines in the undistorted image correspond to circles in the distorted image. These circles are fully described by their center point, as the radius can be calculated from the position of the center and the distortion parameter only. This publication collects the properties of this distortion model from several sources and reviews them. Moreover, we show in this publication that the space of this center is projectively isomorphic to the dual space of the undistorted image plane, i.e. its line space. Therefore, projective invariant measurements on the undistorted lines are possible by the according measurements on the centers of the distorted circles. As an example of application, we use this to find the metric distance of two parallel straight rails with known track gauge in a single uncalibrated camera image with significant radial distortion.