In a method of estimating motion vectors from subsampled video data (I), first vectors are estimated (ME, PM2) between an image with a first sub-sampling phase and an earlier image sub-sampled with a second sub-sampling phase, second vectors are estimated (ME, PM1) between an image with a second sub-sampling phase and an earlier image sub-sampled with a first subsampling phase, and the first and second vectors are combined (CD) to obtain output motion vectors (MV).

In a method of estimating motion vectors, motion parameters (p1-p4) are determined (PC) for a given field (n-1) of a video signal; and motion vectors ( D(X, n) ) for a field (n) of said video signal are determined in dependence upon at least one predetermined motion vector ( D(x-X, y-Y, n), D(x+X, y-Y, n), D(x, y+2Y, n-1) ) and at least one additional motion vector (PV(X) derived (PG) from said motion parameters (p1-p4).

A service estimation apparatus for an elevator adopting an estimated index with which service by the elevator can be estimated in any building and under any traffic state comprising a measurement apparatus to measure periods of service time and a microprocessor operating under program control to calculate a mean value and a variance of the periods of service time to set a reference value for designating a range of the periods of service time and to determine the estimated index, namely, an upper...

A demand estimation apparatus for controlling machines wherein each cycle of a demand fluctuating substantially cyclically is divided into a plurality of sections in which a processor operated under program control sets temporary boundary times of a current cycle on the basis of measured demands during the current cycle and estimated demands for corresponding sections of a previous cycle, and corrects the estimated boundary times set at the end of a previous cycle in accordance with the temporar...

Methods for calculating a total capacitance of a metal wire in an integrated circuit is disclosed. In the present invention, a library containing predetermined wiring topologies is created. Each of the wiring topologies has an associated capacitive value. After extracting a layout topology of a segment of the metal wire, the layout topology is used to find and extract one of the predetermined wiring topologies in the library that corresponds to the layout topology. The associated capacitive valu...

A method comprising an unknown solution adding an organophosphorus thio a salt solution for sufficient time to form compounds having anticholinesterase activity in the reaction solution, contacting the reaction solution with a cholinesterase supported on a suitable substrate, adding indoxyl acetate and observing a non-color or blue color change in the substrate; the absence of color indicates the formation of compounds with anticholinesterase activity and the blue color of the substrate indicati...

A continuous image estimation method of a binary image wherein only one scanning aperture satisfying a predetermined condition for each picture element of a continuous image to be estimated from a plurality of scanning apertures for each kind in a dither image formed of a dither matrix, and the continuous image is estimated on the basis of the number of white or black picture elements in the scanning aperture selected. The predetermined condition is that a gradation expression is conducted in a ...

A method is provided for searching a wide, high-noise frequency band for a narrow, phase-modulated signal to determine the approximate carrier frequency of a data signal. The method comprises the steps of sampling a received signal at a rate sufficiently high to cover the search bandwidth, performing an efficient Fourier transform on the sampled signal to obtain a discrete point power spectral density, filtering each frequency component of the power spectral density with averaging filters, analy...

The invention relates to a method for estimating the position of a receiver receiving code modulated signals from at least one beacon. The method comprises delimiting a region containing the receiver position based on a code modulated signal received at the receiver from at least one beacon and on available information including at least an initial information on the receiver position. The method further comprises estimating the receiver position as a position within the delimited region which m...

A method for preventing excessive spin to the driven wheels of a vehicle by determining the value of slip where the wheel/road tractive force is maximized for the particular coefficient friction road operating surface. The reaction torque, as translated through the differential, is considered and wheel control is therefore optimized based upon individual wheel acceleration characteristics and cross-differential torque transfer.