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5544263 |
Motion vector calculation circuit, with flatness-judgement circuitry, that selects a generated motion vector for output in accordance with a flatness judgement result
A circuit calculates motion vectors for use in compressing a motion picture signal. The motion picture signal is divided into portions, each portion representing a picture. The portions include a...
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5537511 |
Neural network based data fusion system for source localization
A method is described for providing an estimate of the state of a moving contact. The method comprises providing a device for estimating the state of the contact, inputting information about a...
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5535302 |
Method and apparatus for determining image affine flow using artifical neural system with simple cells and lie germs
A method and apparatus is provided to determine image affine flow from time-varying imagery. The novel artificial neural computational system of a cortical hypercolumn comprising a plurality of...
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5532729 |
Scanner motor with ceramic sleeve bearing
A scanning motor includes a fixed shaft made of a ceramic material. The rotary sleeve is rotatably fitted onto the material, and a rotary sleeve also made of a ceramic fixed shaft so as to be...
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5515448 |
Distance measuring apparatus of a target tracking type
A distance measuring apparatus of the target tracking type which reduces the amount of data to be processed to allow high rate processing on the real time basis so that a distance to a moving...
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5428723 |
Method and apparatus for capturing the motion of an object in motion video
A method and apparatus for analysing the motion of an object in an motion video in which the frame of a video image (suitably converted to graphics format) is displayed on a video display unit and...
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5329368 |
Image tracking system and technique
An image motion tracking system (10) for use with an image detector (12, 14) having an array of elements in the x and y directions. First, frequency domain representations of an image are created...
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5323470 |
Method and apparatus for automatically tracking an object
Methods and apparatus for automatically tracking the position of a moving object in real time, particularly the face of a person who is being fed by a robotic system, is disclosed. The object can...
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5305400 |
Method of encoding and decoding the video data of an image sequence
The video data of an image sequence are encoded and decoded section by section, with each nth key frame data field being transmitted as completely as possible. From two adjacent key frame data...
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5265172 |
Method and apparatus for producing optical flow using multi-spectral images
A method and apparatus for producing optical flow obtains a first image of a first spectral region of a field of view, obtains a second image of a second spectral region of the field of view, and...
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5259040 |
Method for determining sensor motion and scene structure and image processing system therefor
The invention is a method for determining the motion of an image sensor through a scene directly from brightness derivatives of an image pair. A global image sensor motion constraint is combined...
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5257209 |
Optical flow computation for moving sensors
A method for using a computer-based imaging system, which may be in motion, to observe a moving object and determine its motion. The imaging system is used to obtain at least two images separated...
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5249238 |
Spatial cross-correlating velocimeter
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5247586 |
Correlator device
Correlation device calculating a correlation between a current block of a first image and symbol blocks taken from a second image to determine the displacement vectors. Selection means (26) (27)...
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5247584 |
Signal processing unit for classifying objects on the basis of signals from sensors
In a signal processing arrangement for classifying objects on the basis of signals from a plurality of different sensors each of the signals from the sensors is applied to a pair of neural...
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5243418 |
Display monitoring system for detecting and tracking an intruder in a monitor area
A display monitoring system of the invention comprises an image pickup section for picking up an image including at least one of an object to be picked up and a background, a change detecting...
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5243666 |
Static-image signal generation apparatus using fuzzy theory
A movement amount detected by a movement detection circuit on the basis of an image signal corresponding to an object image is input to a minimum value detection circuit. This detection circuit...
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5241608 |
Method for estimating velocity vector fields from a time-varying image sequence
Changes in successive images from a time-varying image sequence of a scene are characterized by velocity vector fields. As estimate of the velocity vector field is determined as a compromise in the...
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5226091 |
Method and apparatus for capturing information in drawing or writing
A signature to be verified is written on an area which carries horizontal and vertical lines using a pen. As the lines are crossed signals representative of the vertical and horizontal components...
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5214711 |
Method and apparatus for detecting and quantifying motion of a body part
A method for detecting and quantifying motion of a body part of an individual or animal, such as an individual's face or portion thereof. A digitized image of the body part in a reference position...
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5189513 |
Image processing device
The present invention relates to an image processing device, consisting of filter device which extracts predetermined spatial frequency components from an input image signal, and a binarizing...
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5177794 |
Moving object detection apparatus and method
A moving object detection apparatus is disclosed and includes a TV camera for capturing images in a monitoring zone. An image changing area is defined within a rectangular region, and is extracted...
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5173945 |
Process and apparatus for estimating the movement of a moving object
A process and apparatus are provided for estimating the movement of a moving object relative to a reference object. A symbol is formed on the moving object, the symbol having a rectilinear contour...
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5157732 |
Motion vector detector employing image subregions and median values
An image motion vector detection apparatus effectively reduces influences of false vectors arising at a certain probability and suppresses time lags. An image fluctuation stabilizer highly...
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5111511 |
Image motion vector detecting apparatus
An image motion vector detecting apparatus includes a low-pass filter having a non-zero impulse response for at least one of a delay of a predetermined interval LX in the horizontal direction and a...
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5109425 |
Method and apparatus for predicting the direction of movement in machine vision
A computer-simulated cortical network computes the visibility of shifts in the direction of movement and computes: 1) the magnitude of the position difference between the test and background...
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5067160 |
Motion-pattern recognition apparatus
The apparatus recognizes a motion of an object which is moving and is hidden in an image signal, and discriminates the object from the background within the signal. The apparatus has an image...
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5067014 |
Three-frame technique for analyzing two motions in successive image frames dynamically
An iterative process, implemented by a feedback loop, responds to all the image data in the respective analysis regions of three consecutive frames of a motion picture, to provide, after a...
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5065435 |
Method and apparatus for analyzing ventricular function
A method for analyzing ventricular function comprises the steps for generating ED contour image data representing the contour of the heart in an end diastole (ED) phase and an ES contour image data...
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5063524 |
Method for estimating the motion of at least one target in a sequence of images and device to implement this method
The disclosed method consists in: method for estimating the motion of at least one target in a sequence of images, including: coefficients transformed by the Fourier transform; computing a...
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5055926 |
Video image position determination
An optical beam position controller in which a video camera captures an image of the beam in its video frames, and conveys those images to a processing board which calculates the centroid...
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5034986 |
Method for detecting and tracking moving objects in a digital image sequence having a stationary background
A method for detecting and tracking moving objects in a digital image sequence having a stationary background by comparing the image sequence to a calculated background image sequence, whereby a...
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5025482 |
Image transformation coding device with adaptive quantization characteristic selection
A transformation coding device which applies high by efficient coding to a digital image signal, and in which a plurality of quantization characteristics are prepared and one quantization...
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5012522 |
Autonomous face recognition machine
A machine is disclosed that is capable of locating human faces in video scenes with random content within two minutes, and capable of recognizing the faces that it locates. The machine uses images...
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4998287 |
Determination of sequential positions of video fields derived from film
A system for determining the sequential position of video fields of a received video signal that was derived from a film having successive image frames in accordance with the 3:2 pulldown method,...
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4985618 |
Parallel image processing system
A parallel image processing system comprises an image detection array of photodector elements, edge detection circuit including a number of edge detection elements for producing an output signal...
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4980762 |
Method and apparatus for image processing to obtain three dimensional motion and depth
An image processing system provides the capability of extracting three dimensional motion information from two dimensional images. The image processing system achieves such extraction by analyzing...
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4912770 |
Method of detecting change using image
A method of detecting a change using an image includes an image inputting section, an image registration processing section, a binarization processing section and an image display section. In this...
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4870692 |
Device for and method of subtraction imaging with reduction of motion artefacts
Images formed by digital subtraction angiography are improved by subtracting a locally deformed image from another image. A subtraction image is obtained which is substantially free from motion...
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4847909 |
Apparatus for processing an X-ray image
An apparatus for processing an X-ray image, wherein an image signal newly obtained is allowed to pass through a recursive filter so as to allow objectionable lag to occur between that image and a...
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4783833 |
Method of extracting an image of a moving object
A method of extracting an image of a moving object comprises the steps of extracting edge-enhanced input image from an input image taken by an image pick-up element moving in a plane perpendicular...
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4780907 |
Method of measuring the types of motion and configuration of biological and non-biological objects
A method for measuring the type of motion and configuration of objects by observation of the objects and evaluation of the observation results, including the steps of: producing data representative...
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4653109 |
Image analysis system and method
A scanning and monitoring system employing automatic image analysis of an image field, object or group of objects over a period of time together with the detection and analysis of one or more other...
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4063281 |
Motion detection employing direct Fourier transforms of images
Method and apparatus for directly converting between an image and the spatial or temporal Fourier transform thereof. To convert an image into its Fourier transform representation, the image...
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