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The research presented in this paper aims to find out what affect cognitive biases play in a robot's interactive behaviour for the goal of developing human-robot long-term companionship. It is expected that by utilising cognitive biases in a robot's interactive behaviours, making the robot cognitively imperfect, will affect how people relate to the robot thereby changing the process of long-term companionship...
A fast and accurate CAD model based on cavity model analysis has been proposed to predict the input impedance and bandwidth of a tunable right angle isosceles triangular patch antenna (RAITPA). The effect of suspended substrate on the input impedance and bandwidth has been thoroughly investigated. The accuracy of the present model is computed against the HFSS simulated results. The present model shows...
This paper presents a model for developing long-term human-robot interactions and social relationships based on the principle of ‘human’ cognitive biases applied to a robotic platform. The aim of this work is to study how a robot influenced with human ‘misattribution’ can help to build better human-robot interactions than unbiased robots. The results presented in this paper suggest that it is important...
A set of closed form expressions based on cavity model are proposed to investigate the effect of composite and suspended substrate on the input impedance of an equilateral triangular patch antenna (ETPA). The proposed model has been validated employing standard commercial software (HFSS). A comparison of theoretical values for input impedance of an ETPA with that obtained by simulation (HFSS) reveals...
A simple and accurate CAD model based on cavity model analysis has been proposed to compute the resonance frequency of a right angle isosceles triangular patch antenna (45°–45°–90°). A standard electromagnetic simulator (HFSS) has been employed to validate the present model. The model is found to be valid for wide range of antenna parameters. Good correlation (average % error 0.94) is seen between...
The registration of 3D CT volumes to 2D fluoroscopy video frames has been used in a number of important medical applications such as image guided surgery and kinematic analysis of joints. A major limitation for this type of registration is the computational complexity of the algorithms required to perform the registration. These algorithms present a significant computational burden since they are...
To accurately compute the resonant frequency of an equilateral triangular patch antenna (ETPA) on composite and suspended substrate simple CAD formulae based on cavity model has been proposed. The present model is very simple, fast, accurate and valid for wide range of permittivity and thickness of composite and suspended substrate as well as single substrate patch antenna. This is for first time...
A fast and accurate CAD model based on cavity model analysis is proposed in this paper for computing the input impedance of circular patch antenna operated in between 0.8 to 1.33 GHz. The proposed model is valid for vary large to very small value patch diameter with any feed position. The computed values of circular patch having different diameter with different feed locations are compared with different...
To compute accurately the input impedance of an equilateral triangular patch antenna (ETMPA) with and without air gap, a simple and efficient CAD model based on cavity model analysis is proposed. The computed values for wide range of feed location and air gaps of an ETMPA with different antenna parameters are compared with different experimental and theoretical values available in open literature...
An improved and simple CAD model based on cavity model analysis is proposed in this paper for computing the input impedance of circular patch antenna with and without variable air gap in between substrate and ground plane. The proposed model is valid for vary large to very small value of variable air gaps. The computed values of circular patch with and without variable air gaps are compared with different...
The input impedance of an equilateral triangular shape DRA is theoretically investigated. To the best of our knowledge neither any experimental result nor any design guide line is available in open literature to estimate the input impedance of a triangular shape DRA. So, a very simple CAD model based on cavity model analysis is proposed to compute the input impedance of an equilateral triangular shape...
A simple and efficient CAD model based on cavity model analysis is proposed to compute accurately the resonant frequency of radome loaded rectangular patch antenna. The computed values for wide range of radome parameters are compared with different theoretical and experimental values available in open literature. Our computed values are closer to the experiments compared to the others.
The effect of cavity backing on the input impedance of a triangular patch antenna is theoretically studied. To the best of our knowledge this is the first time that we have investigated the triangular cavity backing triangular patch antenna. In this paper we have proposed a very simple CAD model based on cavity model analysis to compute the input impedance of an equilateral triangular patch antenna...
For computing the resonant frequency of circular patch antenna with and without variable air gap in between substrate and ground plane an improved and simple CAD model based on cavity model analysis is proposed in this paper. The proposed model is valid for vary large to very small value of patch diameter with entire range of permittivity and thickness of the substrate with variable air gaps. The...
With the advent of high frame rate driving in Liquid Crystal Displays (LCD), the need for high quality frame rate up-conversion has become very important. Various motion-compensated frame rate up-conversion (MCFRC) algorithms and have been developed to interpolate moving objects along their motion trajectories. In addition to robust motion estimation, accurate occlusion handling is also very essential...
Shifting of resonant frequency due to dielectric radome of a triangular microstrip antenna is theoretically investigated. A very simple, more accurate and more efficient CAD model is proposed in this paper. The computed values for wide range of variations of superstrate thickness and dielectric constant are compared with different theoretical and experimental values available in open literature and...
Now-a-days image alignment is one of the most widely used techniques in computer vision. Image alignment has many applications in fields as diverse as video surveillance, computer vision, medical imaging, and video coding. The estimation of an objects' motion is a key step in image alignment. In this paper, we will present a low-complexity algorithm for estimation of motion parameters. Most of the...
In the most common form of wavelet video coding, a three-dimensional discrete wavelet transform (DWT) is applied on a group of video frames (GOF). This approach suffers in compression performance because no motion compensation is used. Other approaches to motion compensated wavelet video coding fails to achieve good video quality in packet loss network due to the absence of a resilient transmission...
This paper introduces a framework to emulate the path loss of radio network links in a laboratory environment. The emulator network comprises one or more multiport radio frequency (RF) hubs with variable attenuation on each port to be able to emulate the radio path loss between any two radios. The problem in this emulation approach is the determination of the appropriate port attenuation to match...
Modern tactical networks play an important role in success on the battlefield. Unfortunately, performance evaluation of tactical networks is cumbersome because of the scale and complexity of the underlying systems involved and the cost of deploying large numbers of systems and personnel. Simulation of the tactical network system is sound in theory; but in practice it is extremely difficult to build...
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