Intermittent loss of the gps signal is a common problem encountered in intelligent land navigation based on gps integrated inertial systems. This issue emphasizes the need for an alternative technology that would ensure smooth and reliable inertial navigation during gps outages. This paper presents the results of an effort where data from vision and inertial sensors are integrated. However, for...

This paper describes the design, operation, and test results of a miniature, low cost integrated GPS/inertial navigation system that uses commercial off-the-shelf Micro-Electro-Mechanical System (MEMS) accelerometers and gyroscopes. The MEMS inertial measurement unit (IMU) is packaged in a small size and provides the raw IMU data through a serial interface to a processor board where the inertia...

Inertial microfluidics has been attracting considerable interest in recent years due to immensely promising applications in cell biology. Despite the intense attention, the primary focus has been on development of inertial microfluidic devices with less emphasis paid to elucidation of the inertial focusing mechanics. The incomplete understanding, and sometimes confusing experimental results tha...

Body segment inertial properties (mass, center of mass position, and moment of inertia)affect the joint kinetics and subsequent limb control during ambulation. Accurate segmentinertial property estimations are necessary for properly calculating kinetic parameters andappropriately interpreting these data. Limited information currently exists related to inertialproperties of v...

This paper is concerned with an intriguing difference between Japanese and English involving the progressive form be V-ing and the -te iru form as well as the passive constructions in the two languages. Some of the complex semantic properties of the -te iru construction in Japanese are discussed in Ogihara (1998), where I present a proposal to account for the multiple interpretations associated...

Two objects of similar visual aspects and of equal mass, but of different sizes, generally do not elicit the same percept of heaviness in humans. The larger object is consistently felt to be lighter than the smaller, an effect known as the ‘size-weight illusion’. We investigated whether the same effect can be observed if the mass of an object is available to participants through inertial rather...

In this work, we present an algorithm that enables computation of inertial modes and their corresponding frequencies in a rotating triaxial ellipsoid. The method consists of projecting the inertial mode equation onto finite-dimensional bases of polynomial vector fields. It is shown that this leads to a well-posed eigenvalue problem, and hence, that eigenmodes are of polynomial form. Furthermore...

In inertial human motion capture, a multitude of body segments are equipped with inertial measurement units, consisting of 3D accelerometers, 3D gyroscopes and 3D magnetometers. Relative position and orientation estimates can be obtained using the inertial data together with a biomechanical model. In this work we present an optimization-based solution to magnetometer-free inertial motion captur...