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5497338 |
Motion vector detecting circuit
A motion vector detecting circuit is for detecting a motion vector in moving picture coding using motion compensation prediction in the unit of block composed of L pixels by block matching between...
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5495300 |
Motion-compensated picture signal interpolation
In a motion-compensated picture signal interpolation apparatus comprising a field memory (FM2) for delaying an input field sequence, a motion vector estimator (ME) for furnishing motion vectors,...
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5493344 |
Motion vector estimation method and apparatus having half-pixel accuracy
A system estimating the movement of video signals to half-pixel accuracy includes a first motion detector receiving the present video block data and data for a corresponding search area for...
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5491523 |
Image motion vector detecting method and motion vector coding method
In a motion vector detection method for detecting motion vectors for respective blocks divided from an image frame, a motion vector is detected for a block of a luminance signal forming the image...
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5488419 |
Video compression coding and decoding with automatic sub-pixel frame/field motion compensation
An input frame to be motion compensated is partitioned into smaller blocks of pixel data. First, motion estimation is performed on each block in full-pixel resolution. Then, full-pixel resolution...
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5488430 |
Motion detection and estimation apparatus and method thereof
Motion detection and motion estimation apparatus and method thereof. Motion detection becomes correct by taking horizontal/vertical changes of the incoming image into account. Also, motion...
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5485214 |
Dual bus dual bank architecture for motion compensation
A memory architecture for use in a video coder comprises two sets of memories and two buses. The memory architecture is used to increase the efficiency of use of a Motion Estimation Unit (MEU) in...
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5485224 |
Motion compensated video signal processing by interpolation of correlation surfaces and apparatus for doing the same
Motion compensated video signal processing apparatus, in which motion vectors are generated to represent image motion between a pair of input images of an input video signal, comprises means for...
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5483286 |
Motion compensating apparatus
A motion compensating apparatus comprising an encoding circuit for compressing and transmitting a video signal of a DFD frame which is a difference between a video signal of a present frame and a...
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5481310 |
Image encoding apparatus
An image encoding apparatus which enables to improve an efficiency of a motion compensate encoding includes a frame memory unit (12) for storing a preceding encoded and partially decoded image...
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5479218 |
Motion vector detecting apparatus
By expanding the technique of detection of a motion vector by the of time-space differential method, (1) repetitive calculations are not needed, (2) different motion vectors near the boundary of an...
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5479211 |
Image-signal decoding apparatus
An image-signal decoding apparatus decodes moving-picture data compressed by orthogonal transform, quantization, and variable-length coding for each block. A variable-length code decoding circuit...
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5477272 |
Variable-block size multi-resolution motion estimation scheme for pyramid coding
A novel variable-size block multi-resolution motion estimation (MRME) scheme is presented. The motion estimation scheme can be used to estimate motion vectors in subband coding, wavelet coding and...
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5477278 |
Apparatus for detecting motion of moving picture
An apparatus for detecting a motion of an image includes a first unit for calculating first partial accumulates of one block, a second unit for calculating second partial accumulates about...
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5475431 |
Real-time encoding signal extraction and display apparatus
In a picture encoding apparatus, pieces of local encoded information generated at signal processing stages for predictive coding picture data are extracted in accordance with a selecting signal and...
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5475446 |
Picture signal motion detector employing partial decimation of pixel blocks
A reference picture signal is stored defining a plurality of image pixels of a reference picture. The input picture signal is divided into a plurality of input block signals each defining a...
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5473378 |
Motion compensating inter-frame predictive picture coding apparatus
A motion picture coding apparatus for storage medium of a video rate is produced at a low cost. The coding apparatus includes an input picture re-arranging unit for changing the order of frames of...
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5473379 |
Method and apparatus for improving motion compensation in digital video coding
A novel method and apparatus for use in digital video compression provides improved block-based motion compensation using the global motion of a video frame. A video frame comprising a plurality of...
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5471544 |
Condition number-based smoothins of optical flow fields
An image processor (10) is provided in which imaging data obtained by an image sensor (12) is processed for purposes of detecting motion. An optical flow field generator (16) processes the image...
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5471252 |
Method and apparatus for estimating motion vector fields by rejecting local outliers
An image analysis system generates a motion vector field from first and second images in a sequence of steps. First, random, initial motion vector values are assigned to each pixel in the image...
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5469226 |
Video signal processing to derive motion vectors representing motion between successive fields or frames
A method of processing a digital video signal to derive motion vectors representing motion between successive fields or frames of the video signal comprises compares the contents of blocks of...
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5469517 |
Motion compensation circuit
A motion compensation circuit comprises finite impulse response (FIR) filters divided into N groups according to N subbands of input video signal samples. One of the FIR filters of each group...
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5469214 |
Device for recursive processing of a video signal, comprising a plurality of branches
Device for recursive processing of a video signal, comprising a plurality of n branches, for recursive parallel processing of a video signal, comprising at least a MEMORY BANK structure (1, 2, 3,...
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5467136 |
Video decoder for determining a motion vector from a scaled vector and a difference vector
A video decoding apparatus including a memory for storing at least first and second reference pictures, a prediction signal forming circuit for forming a prediction signal to produce an output...
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5461421 |
Encoding and decoding method and apparatus thereof
To encode a video signal by means of an interlace scanning method, a mode which generates the minimum number of bits with respect to four modes such as frame/field and inter/intra is selected and...
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5461423 |
Apparatus for generating a motion vector with half-pixel precision for use in compressing a digital motion picture signal
Apparatus for generating a motion vector for use in compressing a digital motion picture signal. The apparatus comprises a circuit for obtaining a primary motion vector with one pixel precision...
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5459516 |
Video motion compensation apparatus
A video motion compensation apparatus comprising an X-read address generation circuit for generating X-read address components in response to a macro block address and an X-motion vector component,...
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5457675 |
Video image updating and reproducing device with image selecting key input means
A picture reproducing apparatus includes a CD-ROM drive for fetching compressed video image data from a disc on which initial I-picture data for an initial picture for a menu display and a...
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5453800 |
Apparatus for judging a hand movement of an image
In an apparatus for judging a hand movement of an image, pixels where absolute values of differences between image data of respective pixels of blocks of a current frame and image data of...
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5453799 |
Unified motion estimation architecture
A video signal processor includes a motion vector estimation system having a first operating mode for performing frame-structure processing and a second operating mode for field-structure...
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5453801 |
Method and apparatus for detecting motion vectors in a frame decimating video encoder
An improved motion estimating method serves to determine a set of target motion vectors between a current and its previous selected frames, wherein N number of frames are skipped between the...
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5452021 |
Image fluctuation detection apparatus
When an image motion vector is to be detected, correlation calculations are performed by a correlation calculation circuit (12) and the motion vector is detected from the result. At this time, the...
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5450126 |
Image blur correcting apparatus
An image blur correcting apparatus includes a lens-barrel part having a lens and an imaging device, an image signal processing device for forming a video signal from an electrical signal obtained...
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5442409 |
Motion vector generation using interleaved subsets of correlation surface values
A system for generating motion vectors from image data calculates correlation surface values representing image correlation between temporally adjacent images. The system provides a stream of...
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5440350 |
Method and apparatus for encoding selected blocks of a residual image signal
A method for partially encoding an image. The image is divided into a plurality of blocks and one block is selected for processing. A determination is made whether the selected block is an exterior...
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5436674 |
Method of detecting motion vector, apparatus therefor, and picture signal processing system utilizing the apparatus
An apparatus capable of detecting with improved accuracy a motion vector representing an object moved on a picture plane comprises a memory section for storing an input picture signal renewed for...
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5432543 |
Endoscopic image processing device for estimating three-dimensional shape of object based on detection of same point on a plurality of different images
The position of the same point on each of the images of a single object formed by the imaging means of an endoscope is detected, and shift maps between the respective images are formed using the...
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5430487 |
Method and apparatus for improving temporal video signal processing using motion vectors transmitted with the video signal
A system for improving motion-sensitive processing in a television receiver generates motion vectors for video images in a studio environment, encodes the motion vectors and then combines the...
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5428396 |
Variable length coding/decoding method for motion vectors
In connection with compression-coding of video signals on the basis of inter-frame correlation, a single reference table is used for variable length encoding of inter-frame motion vectors...
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5428403 |
Motion vector estimation, motion picture encoding and storage
In the encoding of a frame (P3) in a digitised motion picture sequence, the frame is divided into blocks (A) of pixels and a motion vector (VA) found to predicts the contents of each block A from a...
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5416522 |
Motion detection apparatus for moving pictures and encoding and decoding apparatus for picture signals
An apparatus for detecting motion of blocks by block matching of detecting a matching degree of corresponding positions between pictures. The device comprises integrators 12 each having a...
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5412435 |
Interlaced video signal motion compensation prediction system
A coder with a motion estimation system, which comprises a same parity field motion estimator, a near field motion estimator, an inter-field interpolated motion estimator, a comparator for...
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5410356 |
Scanning-line interpolation apparatus
A scanning-line interpolation apparatus for an image represented by a plurality of blocks of picture elements, provided with a motion vector detecting circuit for detecting an inter-frame motion...
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5410358 |
Method and device for frame interpolation of a moving image
Apparatus and method for forming an interpolated image corresponding to a given temporal distance ratio between a first and a second image including respectively, a first image in which the first...
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5408274 |
Method and apparatus for compositing compressed video data
Inverse motion compensating devices are used to transform motion compensated transform domain video signals to corresponding transform domain video signals. A compositing mechanism receives the...
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5408269 |
Moving picture encoding apparatus and method
In a picture encoding apparatus, detection of a moving vector of half-pixel precision is executed by using a single clock without increasing the number of frame memories. Time-series input pixel...
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5406501 |
Method and device for use in detecting moving targets
A method and device for use in detecting moving targets in a scene represented by a sequence of mutually registered images R ( . . . , R n -1, R n , R n +1, . . . ) over time wherein differential...
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5400087 |
Motion vector detecting device for compensating for movements in a motion picture
A motion vector detector includes a processor array having a plurality of processing elements arranged in a two dimensional array. Each of the processing elements includes storage elements for...
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5398079 |
Half-pixel interpolation for a motion compensated digital video system
A scheme is provided for processing previous frame data in a motion compensated digital video system to interpolate pixels used in reconstructing a current video frame. Pixel data from a previous...
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5398078 |
Method of detecting a motion vector in an image coding apparatus
A method of detecting a motion vector in an image coding apparatus, including blocking an input image block to be coded into a plurality of input blocks each consisting of a plurality of pixels;...
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