Electrical and Electronics Commons^™

Multi-Tap Extended Kalman Filter For A Periodic Waveform With Uncertain Frequency And Waveform Shape, And Data Dropouts, Justin Saboury

Theses and Dissertations

Gait analysis presents the challenge of detecting a periodic waveform in the presence of time varying frequency, amplitude, DC offset, and waveform shape, with acquisition gaps from partial occlusions. The combination of all of these components presents a formidable challenge. The Extended Kalman Filter for this system model has six states, which makes it weakly identifiable within the standard Extended Kalman Filter network. In this work, a novel robust Extended Kalman Filter-based approach is presented and evaluated for clinical use in gait analysis. The novel aspect of the proposed method is that at each sample, the present and several past …

Adaptation Of Moiré Phase Tracking To A Mobile Device For Field 3d Data Collections, Amar Nikhanj

Theses and Dissertations

The accelerating technologies of mobiles devices such as tablets and phones provide an ability to

perform high intensity calculations all while obtaining precise data with increasingly more accurate

sensors. Image metrology and 3D motion tracking can take advantage of these improvements as

they require both significant processing power and camera controls not seen in mobile devices until

very recently. This thesis discusses the development of 3D motion tracking using Google Nexus

tablets and applying the technology to the Rapid Upper Limb Assessment (RULA) to demonstrate

the technology’s application to field measurements. RULA analysis determines the stress placed on

a human …