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6687388 |
Picture processing apparatus
Picture data of frames [−2] to [+2] of an input picture signal is stored to frame memories fm [−2] to fm [+2]. The picture data of the frame f [0] is supplied to an area extracting circuit. In...
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6674798 |
Motion vector detecting device capable of accommodating a plurality of predictive modes
A processor array includes element processors which are arranged in a matrix in correspondence to respective pixels of a template block, which is a current picture image pixel block. Each element...
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6671321 |
Motion vector detection device and motion vector detection method
A motion vector detection device of the present invention includes: a parameter setting section having parameters relating to N (N is a natural number equal to or greater than 2) search regions...
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6661470 |
Moving picture display method and apparatus
A method for displaying a moving picture having a proper tone by changing a combination of subfields constituting a field of the moving picture, the subfields each having a different weight of...
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6658059 |
Motion field modeling and estimation using motion transform
A motion transform is implemented for calculating the motion field between two images. An optical flow calculator is configured for generating an image motion vector field by iteratively comparing...
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6654483 |
Motion detection using normal optical flow
A system and method allow for the detection, segmentation and analysis of regions of motion. The system and method use a motion history image generated by observing an object over a given period of...
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6654421 |
Apparatus, method and computer program product for transcoding a coded multiplexed sound and moving picture sequence
Herein disclosed is an apparatus for transcoding a coded multiplexed sound and moving picture sequence comprises the rate converter, which is operated to compress only the video bit streams, which...
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6643387 |
Apparatus and method for context-based indexing and retrieval of image sequences
An apparatus and method for implementing object motion segmentation and object trajectory segmentation for an image sequence. Specifically, block-based motion vectors for a pair of adjacent frames...
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6639944 |
Sub-pixel accurate motion vector estimation and motion-compensated interpolation
Sub-pixel accurate motion estimation from digital video requires interpolation of data. In a symmetrical motion estimator that shifts the neighboring images over complementary fractions (− D /2, ...
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6636618 |
Method for detecting geological discontinuity in an environment using an optical flow
The invention concerns a method for detecting geological discontinuity in an environment using an optical flow. The method includes the steps of selecting in the seismic block a section containing...
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6628713 |
Method and device for data encoding and method for data transmission
The present invention generates coded data having always high image quality irrespective of the change amount of a picture. When a difference between two adjacent frames in inputted picture data is...
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6625214 |
Apparatus and method for fade detecting and information encoding
An fade detection device detects fade transitions in a image data signal used for image data compression provided with: an inter-frame difference calculation device calculates the absolute value of...
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6625216 |
Motion estimation using orthogonal transform-domain block matching
A block matching system matches a motion block in one video image frame to a matching block another video image frame. The system includes a plurality of Hadamard transform processors which...
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6625333 |
Method for temporal interpolation of an image sequence using object-based image analysis
A method for temporal interpolation of an image sequence using object-based image analysis is disclosed. The method comprises the steps of image segmentation for partitioning a known image into...
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6625304 |
Method of detecting displacement of a block of pixels from a first to a second image of a scene
Displacement of a first block of pixels from a first to a second image of a scene is determined for applications of automated distance computation. The selection of corresponding blocks in the two...
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6618441 |
Motion vector detection apparatus
An object of the present invention is to implement a motion vector detection apparatus capable of drastically shortening the processing time required for detection of a motion vector between...
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6611294 |
Method and device for converting number of frames of image signals
The present invention provides a movement correction frame count transformation apparatus for carrying out frame count transformation processing on a picture signal. In the apparatus, an input...
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6600784 |
Descriptor for spatial distribution of motion activity in compressed video
A method describes motion activity in a video sequence. A motion activity matrix is determined for the video sequence. A threshold for the motion activity matrix is determined. Connected regions of...
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6594314 |
Motion vector detection method and apparatus
In a motion vector detection method for detection the motion vector of a field picture conforming to the interlaced scanning system, a motion vector of a second field picture is detected in a...
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6584155 |
Method and system for estimating motion vector
The correlation between a coded block on the screen of the current image and a plurality of candidate blocks which exist in a search area on a reference screen temporally different from the current...
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6584212 |
Apparatus for motion estimation with control part implemented by state transition diagram
An apparatus for motion estimation with control part implemented by state transition diagram without adding delay circuits to processing elements, and capable of maintaining a regular data flow and...
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6567469 |
Motion estimation algorithm suitable for H.261 videoconferencing applications
A method for identifying an optimum motion vector for a current block of pixels in a current picture in a process for performing motion estimation. The method is implemented by evaluating a...
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6563874 |
Fast search method for motion estimation
A video compression method of estimating a motion vector representative of a difference between a reference frame and a current frame is described. Typically, both the reference frame and the...
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6563549 |
Method and apparatus for adaptively encoding an information stream
A method and concomitant apparatus for adapting the behavior of an MPEG-like encoder to information discontinuities within a received information stream, such that encoding quality and random...
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6563873 |
Video signal processing
In a video signal processing method, video signal parts are labeled (L) as non-matchable parts (N-M) if reliable motion or depth information (d 1 , d 2 ) cannot be obtained for such parts (N-M),...
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6560286 |
Field frame motion design for digital video decoder
A method and apparatus for improved processing of digitized moving pictures. A motion vector for field frame processing is produced using fewer pixels from the source image and fewer coefficients...
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6552749 |
Method and apparatus for video motion compensation, reduction and color formatting
A method and apparatus for video motion compensation, power of two reduction and color format conversion is disclosed. The motion compensation engine performs the MPEG-2 functions of half pel...
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6553132 |
Method for motion correction in a series of images of a rigid body
The invention is directed to a method for motion correction given series of two-dimensional images of a rigid body, whereby the rigid body does not lie completely in the coverage area of the images...
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6542197 |
Three-dimensional signal processor using motion information upon decoding image signal
A three-dimensional signal processor for performing three-dimensional signal processing such as dual scanning/horizontal frequency conversion of a digital broadcasting signal, using a motion vector...
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6535244 |
Image stabilizing apparatus using bit-plane matching and image stabilizing method using the same
An image stabilizing apparatus for correcting motion of an image recording apparatus by using a bit-plane matching technique, and an image stabilizing method thereof. In the image stabilizing...
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6526097 |
Frame-level rate control for plug-in video codecs
A variety of different types of video frame encoders can be configured with, e.g., a multimedia processing subsystem, as long as the video frame encoder conforms to the interface protocol of the...
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6501796 |
Method and device for video compression
The invention relates to a process for compressing digital data of a sequence of synthesis images describing a scene which is the subject of a script, comprising a processing step for modelling the...
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6501794 |
System and related methods for analyzing compressed media content
A method comprising receiving media data in a compressed, digital domain, analyzing motion vectors associated with the received media content while in the compressed digital domain and identifying...
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6496539 |
Method and apparatus for detecting motion
There is disclosed a method and apparatus for detecting motion by a video encoder. The method starts with dividing a target block whose motion is to be detected into blocks at different pixel...
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6496184 |
Method for inferring scenes from test images and training data using probability propagation in a markov network
A method infers a scene from a test image. During a training phase, a plurality of images and corresponding scenes are acquired. Each of the images and corresponding scenes are partitioned...
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6496538 |
Method and apparatus for motion estimation for digital video encoding
A method for determining motion estimation in a set of video frames including the comparing of a first macroblock from a video frame in the set of video frames to a second macroblock in a reference...
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6493041 |
Method and apparatus for the detection of motion in video
The present invention comprises a method and apparatus for detection motion in video in which frames from an incoming video stream are digitized. The pixels of each incoming digitized frame are...
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6490322 |
Digital opaque projector for easy creation and capture of presentation material
A method for managing a frame of data includes capturing the frame of data from an image at a location. It is determined whether the image is a new image. The frame of data is displayed if the...
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6487313 |
Problem area location in an image signal
In a method of locating problem areas in an image signal (I), a motion vector field (Df) is estimated for the image signal (I), and edges are detected in the motion vector field (Df). In a...
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6483945 |
Moving picture encoding method and apparatus
Method and apparatus for encoding moving pictures in which a bitstream of encoded moving pictures has a bit rate contained within a pre-set range. The bit rate of a unit domain, such as a GOP, of...
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6480670 |
Video signal encoding method and system
In an image signal encoding method for encoding an image signal using motion compensation, a motion vector is found by means of a block matching method, a first distortion SEmc of motion...
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6473462 |
Process for estimating a dominant motion between two frames
The process for estimating a dominant motion between two frames combines a phase correlation peak detection algorithm ( 1 ) and a multi-resolution robust regression algorithm ( 3 ) for improving...
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6470050 |
Image coding apparatus and its motion vector detection method
The present invention provides an image coding apparatus and its motion vector detection method, which can reduce a system cost also when the throughput of image data is increased. The image coding...
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6466262 |
Digital wide camera
A digital wide camera is capable of forming, in real time, a wide view still image from a dynamic sequence of images generated during a recording operation by panning the camera to capture a scene....
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6466253 |
Still image producing method and still image capture system
A method is disclosed for producing a still image of an object using an image pickup element, which captures an image as a plurality of pixels. The method includes calculating relative displacement...
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6462785 |
Motion display technique
When there is an inability to convey motion that is occurring in the frames of a video source by a full-frame-rate transmission, a surrogate effect, other than another form of motion, may be used...
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6462791 |
Constrained motion estimation and compensation for packet loss resiliency in standard based codec
The present invention discloses a method and apparatus for transmitting a plurality of images of at least over a packet network. A plurality of motion vectors based on at least one moving object is...
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6456659 |
Motion estimator algorithm and system's architecture
A motion estimator operating on a recursive mode reduces the number of operations per pixels required by the particular coding process being implemented. The coding process includes the MPEG...
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6456328 |
Object-oriented adaptive prefilter for low bit-rate video systems
An object-oriented filter for filtering video images prior to video encoding is disclosed. The object-oriented filter is configured to include an image parameter extractor, a filter selector, and a...
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6452971 |
Moving picture transforming system
Moving picture transforming system which executes transformation of moving picture coding scheme at high speed and with less degradation of picture quality, in that there are provided a motion...
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