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5602591 |
System for generating a weighting coefficient using inter-frame difference signals at a center pixel for detecting motion information and at pixels surrounding the center pixel and quantizing the difference signal at the center pixel
The motion signal detection method achieves splendid motion signal detection both from a video signal having an inter-frame difference signal of the same level as noise and a video signal obtained...
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5602593 |
Overlapped motion compensation using a window function which varies in response to an input picture
On predictively producing a motion compensation prediction picture predictive of a current picture by using a previous picture which precedes the current picture among successive pictures...
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5596370 |
Boundary matching motion estimation apparatus
An apparatus for determining a motion vector representing a displacement between a current frame and a previous frame of video signals comprises an error detector for comparing the error functions...
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5594504 |
Predictive video coding using a motion vector updating routine
An improved method and apparatus for prediction coding with motion estimation uses a hierarchical approach in which a motion vector updating routine is performed with respect to multiple levels of...
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5592228 |
Video encoder using global motion estimation and polygonal patch motion estimation
A video coding apparatus ensuring a high coding efficiency even at a low bit rate includes a moving object analyzer which extracts a moving part from an input picture signal, analyzes its motion,...
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5587741 |
Apparatus and method for detecting motion vectors to half-pixel accuracy
Motion vectors between a current frame and its preceding frame of video signals are optimally determined to a half-pixel accuracy by finding a plurality of full-pixel resolution motion vectors...
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5585862 |
Motion estimation apparatus
A motion vector is calculated on the basis of a current block having current block data and a search window having search window data. The search window includes integer pel blocks and half-pel...
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5581308 |
Method and apparatus for determining true motion vectors for selected pixels
An inventive apparatus determines true motion vectors between a current and its previous frames for feature points selected from the previous frame wherein a selected feature point is surrounded by...
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5581309 |
Motion vector detecting circuit
Correlated values at respective sampling points are found by a correlated value operating circuit on the basis of image data corresponding to each of sampling points in each of small areas in the...
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5579059 |
Motion vector estimator
An improved motion vector extractor comprising a first pixel delay element for delaying pixel data of the previous frame by a one pixel interval, a second pixel delay element for delaying the pixel...
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5579058 |
Motion detection circuit and method using spatial information
A motion detection circuit and method using spatial information obtains spatial correlation information in various directions of a frame and compares the spatial correlation information with a...
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5579050 |
Apparatus for encoding a video signal using a search grid
An apparatus used in a motion-compensated video signal encoder for determining a predicted current frame based on a current frame and a previous frame of a digital video signal using a...
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5576772 |
Motion vector detection apparatus and method
Using a multi-stage operation, a motion vector is detected between a base block in a present frame and the best matching position of an inspection block in a reference frame. In an initial stage,...
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5570133 |
Motion picture encoding system wherein image quality is maximized using inter-frame and intra-frame encoding
In a motion picture encoding system, which permits encoding of motion picture with high encoding efficiency and also permits improvement of the picture quality, priority orders are set...
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5568203 |
Apparatus for estimating real-time motion an a method thereof
An apparatus for estimating real-time motion in a motion compensated predicative coder for data compression of a motion image includes a previous block formation unit, a block-matching algorithm...
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5565922 |
Motion compensation for interlaced digital video signals
A method and apparatus are provided for motion compensated coding of interlaced digital video signals. A first prediction error signal is obtained indicative of the difference between a current...
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5561475 |
Variable block matching motion estimation apparatus
An apparatus for detecting motion vectors between a current frame and a previous frame of video signals based on a block matching motion estimation approach comprises a variable block formation...
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5561476 |
Motion detection method and apparatus
Display standards in common use for the display of computer or television images on high resolution displays, commonly assume that the output image will be displayed on an output device having a...
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5557332 |
Apparatus and method for reproducing a prediction-encoded video signal
A digital video signal that has been encoded using motion-compensated prediction, transform encoding, and variable-length coding, is decoded using parallel processing. Frames of the video signal...
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5557341 |
Iterative method for estimating motion content in video signals using successively reduced block size
A block matching method for estimating motion contents in a video signal is presented. The motion is represented by a two-dimensional motion vector field, including horizontal and vertical vector...
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5555033 |
Method and device for estimating motion of objects in successive animated images subdivided into tow-dimensional blocks of pixels
Method of estimating motion of objects, applied to two-dimensional blocks which are successively scanned in an image, including the steps of determining a set of error data and a motion vector for...
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5552823 |
Picture processing apparatus with object tracking
In a picture processing apparatus such as a camera, monitor camera, television and the like, an imaging device is controlled to follow a desired target object and image it in the best state. A...
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5552831 |
Digital video signal decoding apparatus and presumed motion vector calculating method
A digital video signal decoding apparatus has a memory for storing motion vectors which have been decoded by a decoder, and a motion vector calculating circuit for calculating a presumed motion...
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5550591 |
Motion compensator for digital image restoration
A motion compensator for restoring a digital image which includes a motion compensating controller for receiving motion vector data and outputting control signals, a data interface for shifting...
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5541660 |
Systolic realization of motion compensated interpolation filter
A motion compensated interpolation filter calculates an interpolated frame between two input frames of video signals having moving objects therein. The interpolation filter includes two...
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5541658 |
Image coding-decoding apparatus with efficient memory access
An image coding and decoding apparatus which can produce an improved amount of the effective data per time unit especially in a case where the image data are processed in the field unit. The...
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5539469 |
Apparatus for determining motion vectors through the use of an adaptive median filtering technique
An apparatus for determining motion vectors for pixels of a current frame which includes a number of processing blocks comprises a motion estimator for providing motion vectors for the pixels in...
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5537529 |
Apparatus and method for creating versions of computer models and creating communications incorporating created versions therefrom
A method and apparatus for providing communication in a computer system. The present invention includes a method and apparatus for modifying a first version of a computer model in a live...
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5537155 |
Method for estimating motion in a video sequence
Efficient and adaptable motion estimation between flames in a video sequence is achieved in a video compression system 100 by first performing a series of comparisons in a first region between 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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5534946 |
Apparatus for performing motion-compensated picture signal interpolation
In a motion-compensated picture signal interpolation apparatus comprising switched memories (SMX,LM) for furnishing motion-compensated pixel values corresponding to at least two motion vectors...
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5534928 |
Apparatus and method for decoding a plurality of encoded video signals
An apparatus for decoding a plurality of video signals each encoded by one of intra-coding (I), predictive-coding (P) and bidirectionally-predictive coding (B). Errors in the encoded video signals...
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5532747 |
Method for effectuating half-pixel motion compensation in decoding an image signal
A method for decoding an encoded image signal supplied in the form of a series of encoded image frames, each of the encoded image frames being divided into a multiplicity of macroblocks of pixels,...
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5530481 |
Video encoder/decoder for encoding/decoding motion compensated images
Video encoder and decoder, provided with a motion compensator for motion-compensated video coding or decoding in which a picture is coded or decoded in blocks in alternately horizontal and vertical...
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5528313 |
Motion detection circuit which suppresses detection spread
A motion detection signal delivered from a mixer is output through a series circuit of a maximum value calculation portion and a minimum value calculation portion. In each of the calculation...
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5526053 |
Motion compensated video signal processing
Motion compensated video signal processing apparatus for interpolating an output image of an output video signal from a corresponding pair of temporally adjacent input images of an input video...
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5519456 |
Motion detecting circuit and noise reducing circuit utilizing polarity determination for pixel block of a video display
A motion detecting circuit and a noise reducing circuit of high reliability and independent of the magnitude of motion, presence/absence of noise, and magnitude of the noise. The motion detecting...
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5515114 |
Motion-vector detection apparatus for a video signal
A frame difference accumulator accumulates differences between the present frame and the previous frame of an input video signal in each block and outputs an accumulated value of each block. A...
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5512962 |
Motion vector detecting apparatus for moving picture
A motion vector detection apparatus for a moving picture which can detect a motion vector of a half pel accuracy at a high speed by pipeline processing. The motion vector detection apparatus...
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5512952 |
Picture signal encoding and/or decoding apparatus
Apparatus for compressing a motion picture signal divided into blocks, in which circuits perform the following operations: subtracting the blocks of the motion picture signal from corresponding...
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5510834 |
Method for adaptive estimation of unwanted global picture instabilities in picture sequences in digital video signals
A method for estimation of global error motion vectors, which represent unwanted global picture instabilities in a picture sequence in digital video signals. The method uses a motion vector...
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5510857 |
Motion estimation coprocessor
A motion estimation coprocessor for use in a video data system. The motion estimation coprocessor may be used with a video memory that subdivides a P row×Q column image of pixels into several...
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5510856 |
Apparatus for determining motion vectors
An apparatus for determining motion vector for pixels of a current frame which includes a number of processing blocks comprises a motion estimator for providing motion vectors for the pixels in the...
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5508744 |
Video signal compression with removal of non-correlated motion vectors
A video signal compressor includes apparatus for generating motion vectors for respective blocks of video data. Motion vectors, other than those which provide direction to co-located blocks in...
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5508745 |
Apparatus for controlling a quantization level to be modified by a motion vector
A motion vector calculating device receives horizontal and vertical components of a motion vector and calculates the magnitude of the motion vector. A motion estimating device then compares the...
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5504530 |
Apparatus and method for coding and decoding image signals
A compression-coded high definition television signal is decoded and converted to a standard NTSC signal without loss of interlacing so that the resulting picture exhibits smooth motion. The...
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5500689 |
System for detecting a video signal image intensity gradient
In a video signal processor including a motion compensated predictive coding data compression system, three adjacent image frames (1, 2, 3) are analyzed to detect a luminance gradient such as is...
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5500685 |
Wiener filter for filtering noise from a video signal
A digital Wiener filtering method is proposed which applies motion compensation by successive approximations of increasing resolution to determine displacement vectors for two successive image...
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5497203 |
Motion detection circuit for high definition television based on muse
A motion detection circuit within MUSE decoder for reproducing a high definition television picture signal from a MUSE signal obtains one-interframe differential signal and preferably...
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5497191 |
Image shake compensation circuit for a digital video signal
An image shake compensation circuit comprising a motion information detector for detecting motion information based on the occurrence of an image shake when the image shake occurs in an encoded...
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