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MUTUAL COMPARATIVE FILTERING FOR CHANGE DETECTION IN VIDEOS WITH UNSTABLE ILLUMINATION CONDITIONS
Change detection moving object detection illumination changes mutual comparative filters
2016/7/27
In this paper we propose a new approach for change detection and moving objects detection in videos with unstable, abrupt illumination changes. This approach is based on mutual comparative filters and...
Congruence analysis of point clouds from unstable stereo image sequences
Stereo image matching 3D point tracking congruence analysis
2014/6/30
This paper deals with the correction of exterior orientation parameters of stereo image sequences over deformed free-form surfaces without control points. Such imaging situation can occur, for example...
Long-lived and unstable modes of Brownian suspensions in microchannels
Long-lived and unstable modes Brownian suspensions microchannels Fluid Dynamics
2012/4/12
We investigate the stability of the pressure-driven, low-Reynolds flow of Brownian suspensions with spherical particles in microchannels. We find two general families of stable/unstable modes: (i) deg...
Nanosecond zero-order pulsed Bessel beam generated from unstable resonator based on an axicon
Unstable resonator Axicon Zero-order Bessel–Gauss beams
2009/9/27
We present what we believe the first experimental observation of a nanosecond zero order pulsed Bessel beam generated from an unstable resonator based on an axicon. The field distribution at the outpu...
Experimental Analysis of Unstable Pile Driver Behavior when Self-propelling
Experimental Analysis Unstable Pile Driver Behavior Self-propelling
2009/6/30
A pile driver is a large construction machine used for ground improvement and foundation work. In recent years, there have been some reports of accidents in which the machine overturned. An investigat...
Changes of Mechanical Properties of Wood under an Unstable State by Heating or Cooling
stress relaxation unstable state temperature history amount of fluidity
2009/3/6
In this paper stress relaxation of water-swollen wood was discussed with two conditions of temperature change, i.e. 1) specimens at 20°C were heated rapidly to 30-80°C, and 2) specimens at 30-80°C wer...
Mechanical Properties of Wood in an Unstable State due to Temperature Changes, and an Analysis of the Relevant Mechanism II
wood block uniform elimination lignin hemicellulose
2009/3/6
In order to prepare wood specimens for subsequent measurements of mechanical properties, we examined the selective and uniform elimination of wood constituents from a 4 mm thick cross section of hino...
The most appropriate condition for evaluation of the mechanical properties of wood in an unstable state
stress relaxation unstable state bending strength quenching
2009/3/6
To study the optimum experiment conditions for determining the mechanical properties of wood which is in an unstable state due to temperature changes, the fluidity (1-Et/E0) in stress relaxation, the...
Mechanical Properties of Wood in an Unstable State due to Temperature Changes, and an Analysis of the Relevant Mechanism I.
quenching swollen wood variations of temperature stress relaxation fluidity
2009/3/6
To study mechanical properties of wood exposed to variations of temperature, in this study the swollen wood (water-swollen wood & ethylene glycol-swollen wood) was preheated at 30-180°C and quenched t...
Mechanical Properties of Wood in an Unstable State due to Temperature Changes, and Analysis of the Relevant Mechanism V.
quenching thermal expansion thermal decomposition destabilization
2009/3/6
In order to define the effects of thermal expansion and thermal decomposition on the destabilization of quenched wood, we measured the stress relaxation of steam-treated wood and oven-dried wood under...
The Unstable Behaviour of Reciprocally Rotating Shafts in Textile Machines
reciprocal rotating shaft textile machines stability at rotary motion
2009/2/13
The stability of the reciprocal rotary motion of a motor-driven elastic shaft is studied in this paper. It is found that unstable critical behaviour arises when the average value of the second power o...