The quaternion least mean square (QLMS) algorithm is introduced for adaptive filtering of
three-and four-dimensional processes, such as those observed in atmospheric modeling …

An extension of empirical mode decomposition (EMD) is proposed in order to make it
suitable for operation on trivariate signals. Estimation of local mean envelope of the input …

The design and construction of truly humanoid robots that can perceive and interact with the
environment depends significantly on their perception capabilities. In this paper we present …

This paper presents a survey of cable-driven robotics. The focus is on suspended designs,
in which a comprehensive review is provided. Attention is given to both applications as well …

With increasing ocular motility disorders affecting human eye movement, the need to
understand the biomechanics of the human eye rises constantly. A robotic eye system that …

An interesting problem for the human saccadic eye-movement system is how to deal with the
degrees-of-freedom problem: the six extra-ocular muscles provide three rotational degrees …

A split quaternion learning algorithm for the training of nonlinear finite impulse response
adaptive filters for the processing of three-and four-dimensional signals is proposed. The …

Active vision has the goal of improving visual perception; therefore, the investigation of
ocular motion strategies must play an important role in the design of humanoid robot eyes …

A retina-like scanning method based on liquid crystal optical phased array (LCOPA) is
proposed to improve field of view and efficiency. The functions of human retina, lens and …

Short term forecasting of wind field in the quaternion domain is addressed. This is achieved
by casting the three components of wind speed (two horizontal and a vertical) into a pure …