In automated feature-based motion analysis of multiple frames, correspondence data are usually noisy and fragmented. A technique that gradually refines the initial noisy correspondence data and links fragments of a si...
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In automated feature-based motion analysis of multiple frames, correspondence data are usually noisy and fragmented. A technique that gradually refines the initial noisy correspondence data and links fragments of a single trajectory using feedback from 3D motion estimation is presented. First, 3D motion parameters are estimated using the initial correspondence data. Then, each noisy trajectory is partitioned into subsets of points, each of which conforms to the estimated motion. The best set is used as the input to the next motion estimation. This process is repeated, and the gaps in the refined correspondence data are filled by guidance from the predicted motion. Test results for a standard real image sequence are presented.< >
The output resistance (R/sub out/) most important device parameters for analog applications. However, it has been difficult to model R/sub out/ correctly. In this paper, we present a physical and accurate output resis...
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The output resistance (R/sub out/) most important device parameters for analog applications. However, it has been difficult to model R/sub out/ correctly. In this paper, we present a physical and accurate output resistance model that can be applied to both long-channel and submicrometer MOSFETs. Major short channel effects and hot-carrier effect, such as channel-length modulation (CLM), drain-induced-barrier-lowering (DIBL) and substrate current induced output resistance reduction, are all included in this model, and it is scalable with respect to different channel length L, gate oxide thickness T/sub ox/ and power supply V/sub dd/. This model can be incorporated into existing MOSFET's model without introducing discontinuity.< >
The authors report the development of flange bearing harmonic side-drive (referred to as wobble) micromotors and the results from a comparative study of the operation of flange and center-pin bearing micromotors in di...
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The authors report the development of flange bearing harmonic side-drive (referred to as wobble) micromotors and the results from a comparative study of the operation of flange and center-pin bearing micromotors in different gas environments. Both the flange and center-pin wobble micromotors have been operated with excitation as low as 30 V across 1.5 mu m rotor/stator gaps. In contrast to the center-pin bearing wobble micromotors it was found that the performance of the flange bearing wobble micromotors is not significantly affected by the operational environment. A convenient experimental procedure to characterize friction in wobble micromotors has been developed. Additionally, the requisite wobble micromotor dynamic model for extracting the bearing and bushing/flange frictional parameters from the experimental data is discussed.< >
The problem of defining an appropriate measure of the degree of nonstationarity for stochastic processes that exhibit cyclostationarity is addressed. After discussing several candidate measures of degree of nonstation...
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The problem of defining an appropriate measure of the degree of nonstationarity for stochastic processes that exhibit cyclostationarity is addressed. After discussing several candidate measures of degree of nonstationarity, one particularly promising measure is adopted. By decomposing this measure, several component measures are arrived at. Bounds on these measures are derived and their utility in applications involving signal detection and estimation is established. Examples are presented to illustrate the calculation of degrees of nonstationarity for several types of cyclostationary signals.
An analysis and design of a pseudorandom pattern generator, (PRPG), based on a linear recurrence, for built-in self-test (BIST) boundary scan design is presented. The authors present for the case when r≥s, a design o...
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The consequences of bridging, transition, and stuck-open faults in self-testing checkers designed only for single stuck-at faults are examined. A methodology for design that guarantees that the checkers will be self-t...
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The consequences of bridging, transition, and stuck-open faults in self-testing checkers designed only for single stuck-at faults are examined. A methodology for design that guarantees that the checkers will be self-testing in the presence of bridging, transition and stuck-open faults is established. This methodology is applied to several implementations of self-testing checkers. Simulations confirm that these checkers are self-testing in the presence of bridging, transition, and stuck-open faults. The problems associated with testing the checkers in the presence of non-stuck-at faults and the problems that result from reducing the number of checker outputs from two to one are discussed. It is shown that self-testing checkers designed for stuck-at faults will remain self-testing in the presence of nonclassical faults.< >
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