This paper reports on the synthesis of different flight controllers for an X-Cell mini-helicopter. They are developed on the basis of the most realistic mathematical model currently available. Two hybrid intelligent control systems, combining computational intelligence methodologies with other control techniques, are investigated. For both systems, Mamdanitype fuzzy controllers determine the se...

Various computer vision problems and applications rely on an accurate, fast head pose estimator. We model head pose estimation as a regression problem. We show that it is possible to use the appearance of the facial image as a feature which depicts the pose variations. We use a parametrized Multi-Variate Relevance Vector Machine (MVRVM) to learn the three rotation angles of the face (yaw, pitch...

UNLABELLED The aim of this study was to develop an automatic orientation calibration and reproduction method for recording the natural head position (NHP) in stereo-photogrammetry (SP). A board was used as the physical reference carrier for true verticals and NHP alignment mirror orientation. Orientation axes were detected and saved from the digital mesh model of the board. They were used for c...

The purpose of this work is to use 3D finite element analyses to compute bending of a hard disk suspension using a laser. The pitch and roll of the suspension can be precisely adjusted by producing a controlled amount of residual strain using the laser as a heat source. In the computational model, an uncoupled thermo-mechanical analysis is applied to calculate the laser induced thermal loading ...

COMPENSATION FOR A SMALL UNMANNED HELICOPTER Alexander Bogdanov , Eric Wan OGI School of Science and Engineering, OHSU 20000 NW Walker Rd, Beaverton, Oregon 97006 In this paper we report on the state-dependent Riccati equation (SDRE) control of a small unmanned helicopter for autonomous agile maneuvering. SDRE control requires reformulation of the vehicle dynamics into a pseudo-linear form. For...

We present a clinical classification of central vestibular syndromes according to the three major planes of action of the vestibulo-ocular reflex: yaw, roll, and pitch. The plane-specific syndromes are determined by ocular motor, postural, and perceptual signs. Yaw plane signs are horizontal nystagmus, past pointing, rotational and lateral body falls, deviation of perceived straight-ahead to th...

A method for heading determination is described here that will include the effects of pitch and roll as well as the magnetic properties of the vehicle. Using solid-state magnetic sensors and a tilt sensor, a low-cost compass system can be realized. Commercial airlines today use attitude and heading reference systems that cost tens of thousands of dollars. For general aviation, or small private ...

Quick phases (QPs) induced by horizontal and vertical sinusoidal vestibular stimulations were studied in rabbits, cats, and humans. In all the animals, large and frequent horizontal QPs were observed following yaw stimulation in prone position. By contrast, QPs were almost absent during roll stimulation in rabbits, and they were small and oblique during pitch stimulation in cats and humans. As ...

119004-7272 IJMME-IJENS © August 2011 IJENS I J E N S  Abstract—In this paper, diagonal walking strategy on inclined floor is proposed. In conventional methods, bipedal robots walking on inclined floor are solved only in straight direction. When a biped walks on flat floor, the pelvis orientation is always parallel with the floor surface. However, walking on inclined floor will make the robot ...

Head pose estimation is an important problem in the field of computer vision and facial analysis. We model the problem of head pose estimation as a regression problem, where the three rotation angles (yaw, pitch, roll) are functions of the face appearance. We make use of that fact and learn the appearance of the face using a tree cascade of sparse MultiVariate Relevance Vector Machines (MVRVM)....