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7391810 |
High-speed motion estimator and method with variable search window
A motion estimation apparatus and method capable of reducing the amount of computation required for motion estimation in the compression of moving images are provided, including a first part for...
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7388913 |
Down scaling of images
A Discrete Cosine Transform (DCT) for an entire original sequence is obtained using the DCT coefficients representing the first half and the second half of the original sequence. This is useful...
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7386049 |
Predictive interpolation of a video signal
A method of enhancing picture quality of a video signal is disclosed. The method comprises the steps of generating an interpolated base frame image; receiving a first previously decoded difference...
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RE40372 |
Motion vector prediction method
A motion vector prediction method in an error resilient mode. In the motion vector prediction method capable of decoding backwards, motion vectors of macro blocks are calculated, and motion vectors...
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7379602 |
Extended Isomap using Fisher Linear Discriminant and Kernel Fisher Linear Discriminant
A method for representing images for pattern classification extends the conventional Isomap method with Fisher Linear Discriminant (FLD) or Kernel Fisher Linear Discriminant (KFLD) for...
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7379499 |
Method for conducting a directed prediction of an image block
Pixels on the edge (A, B, C, D; E, F, G, H; I) of previously predicted neighboring picture blocks (A′, B′) are used for directional prediction of a picture block (C′). Depending on the...
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7376186 |
Motion estimation with weighting prediction
A video encoder and decoder are provided for encoding and decoding video signal data for an image block and a particular reference picture index to predict the image block, where the encoder...
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7366237 |
Low complexity real-time video coding
In a first exemplary media implementation, one or more processor-accessible media include processor-executable instructions that, when executed, direct a device to perform actions including:...
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7365795 |
Apparatus and method for adaptively de-interlacing image frame
An apparatus for adaptive de-interlace of a frame comprises a line-segment difference-value calculating module, a motion-vector calculating module, an intra-block calculating module, a...
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7362809 |
Computational reduction in motion estimation based on lower bound of cost function
A method for motion estimation comprising the steps of (A) determining whether a cost of encoding one or more prediction parameters for a current search position is less than a current best cost,...
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7362808 |
Device for and method of estimating motion in video encoder
A motion estimator and an estimation method for a video encoder to reduce power consumption by reducing the computational complexity of the motion estimator. In an upper step, a full search for a...
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7362806 |
Object activity modeling method
An object activity modeling method which can efficiently model complex objects such as a human body is provided. The object activity modeling method includes the steps of (a) obtaining an optical...
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7359440 |
Method and system for extracting key frames from video using a triangle model of motion based on perceived motion energy
A key frame extraction system and method for extracting key frames from a video based on motion analysis of frames within the video. Key frames are highlight frames that are effective in...
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7356082 |
Video/audio signal processing method and video-audio signal processing apparatus
A metadata extraction unit has a feature point selection and motion estimation unit 62 for extracting at least one feature point representing characteristics of the video/audio signals in a...
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7349475 |
Motion vector detection method and apparatus
A motion vector detection method includes extracting a first block from the m-th picture, extracting second blocks having a large correlation with respect to the first block from a (m+n)-th picture...
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7349473 |
Method and system for selecting interpolation filter type in video coding
A method and system for coding a video sequence based on motion compensated prediction, wherein an interpolation filter is used to generate predicted pixel values for picture blocks in the video...
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7346217 |
Digital image enhancement using successive zoom images
A method and Electro-Optical (EO) system for processing imagery comprising selecting a first frame of data as a template frame; capturing a second frame of data using the EO system, for a plurality...
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7346111 |
Co-located motion vector storage
A method for processing a video bitstream is disclosed. The method generally includes the steps of (A) determining co-located motion information for a plurality of co-located sub-blocks in a...
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7346109 |
Motion vector computation for video sequences
Methods and apparatus, including computer program products, implementing and using techniques for computing motion vectors in a digital video sequence are disclosed. A recursive hierarchical method...
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7346108 |
Encoded-data converting apparatus and method for the same
An encoded-data converting apparatus and method are provided. First encoded data generated by using first encoding to encode image data is input. Header information included in the first encoded...
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7342964 |
Multi-standard variable block size motion estimation processor
An apparatus generally having a first circuit, a second circuit and a third circuit is disclosed. The first circuit may be configured to generate a plurality of difference values by calculating an...
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7342963 |
Method for calculating an image interpolated between two images of a video sequence
The invention concerns a method for constructing at least an image interpolated between a preceding image and a following image of an animated sequence. The invention is characterised in that the...
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7339991 |
Method and apparatus for variable accuracy inter-picture timing specification for digital video encoding with reduced requirements of division operations
A method and apparatus for performing motion estimation in a digital video system is disclosed. Specifically, the present invention discloses a system that quickly calculates estimated motion...
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7336832 |
Processor and processing method for an image signal, image display apparatus, generation apparatus and generation method for coefficient data used therein, program for executing each of these methods, and computer-readable medium recording the program
A class sorting section obtains a class code CL indicating a class to which pixel data y of a target position in an image signal Vb belongs using motion compensation vector information mi stored in...
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7336710 |
Method of motion estimation in mobile device
A method of estimating motion in a mobile device reduces access of external memory and power consumption while increasing the usability of internal memory. The method includes recognizing an...
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7336709 |
Method and apparatus for multi-rate encoding of video sequences
A method and apparatus for multi-rate encoding of video sequences. The input data stream is received at a first bit rate. A domain transformation is performed on the input data and the transformed...
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7333630 |
Method and apparatus for detecting film image using grouping
Provided is a method and apparatus for determining whether an input mage is a film image. The method includes (a) receiving a predetermined number of similarity values of two adjacent fields of the...
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7333544 |
Lossless image encoding/decoding method and apparatus using inter-color plane prediction
A lossless image encoding/decoding method and apparatus. The lossless color image encoding apparatus includes a motion prediction image generator estimating a motion between a previous image and a...
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7333543 |
Motion vector estimation method and apparatus thereof
A method which calculates a motion vector based on a transformed picture obtained by Discrete Coefficient Transform (DCT) or a Wavelet transform, and an apparatus appropriate for the method. The...
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7330595 |
System and method for video data compression
A system and method perform video data compression in a manner that limits the need for external memory access. Accordingly, the operational frequency of the local data bus is reduced and power...
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7327788 |
Motion vector derivation method, dynamic image encoding method, and dynamic image decoding method
A motion vector derivation unit ( 11 ) includes a comparison unit ( 20 ) for comparing a parameter TR 1 for a reference vector with a predetermined value to determine whether it exceeds the...
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7327787 |
Method and apparatus for motion estimation
A method and system of motion estimation for video data compression is disclosed. Individual frames of video data are divided into blocks of pixels. One frame is searched to find a block of pixels...
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7324596 |
Low complexity block size decision for variable block size motion estimation
An apparatus generally having a first circuit and a second circuit for motion estimation is disclosed. The first circuit may be configured to (i) generate a first motion vector for a block at an...
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7321626 |
System and method for predictive motion estimation using a global motion predictor
A system and method are provided for using global motion predictors (GMPs) in predictive motion estimation for the compression of video. The method comprises: receiving video frames; generating a...
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7320522 |
Data processing apparatus and method and encoding device of same
A data processing apparatus able to generate a motion vector using projection image data in a short time, wherein an access circuit stores vertical projection image data and horizontal projection...
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7319480 |
Method and apparatus for compressing motion image files to provide an improved image navigation display
A method for producing a motion video image file from a motion image sequence, includes the steps of providing a first target data rate for a first image frame of the motion image sequence;...
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7313185 |
Sequential motion pattern representation
Systems and methods for representing sequential motion patterns are described. In one aspect, video frames are converted into a sequence of energy redistribution measurements. One or more motion...
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7310373 |
Moving picture coding method, and moving picture decoding method
A moving picture coding apparatus ( 10 ) for performing inter-picture predictive coding on pictures constituting a moving picture is provided with a coding unit ( 103 ) for performing predictive...
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7310372 |
Motion vector encoding device and decoding device
A prediction error generating unit generates a predictive vector from the motion vectors of a plurality of adjacent blocks, and obtains a difference from a target vector. A plurality of...
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7308147 |
Image processing apparatus, image recording apparatus, image reproducing apparatus, camera system, computer program, and storage medium
An image processing apparatus includes an image compression device which performs a discrete wavelet transform of pixel values for each rectangular portion to produce wavelet coefficients, and...
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7308028 |
Apparatus and method for generating mosaic images
The present invention relates to an apparatus and method for generating mosaic images, wherein photographed content is displayed as a still image by a digital TV display or video monitor for an...
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7305033 |
Method of encoding and decoding motion picture, motion picture encoding device and motion picture decoding device
The present invention discloses a method of encoding and decoding motion picture, a motion picture encoding device and a motion picture decoding device, which enables high-efficiency coding capable...
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7305032 |
Image matching device and method for motion pictures
A matching section performs motion estimation upon a predetermined processing unit of input video (p) by, e.g., an iterative gradient method. A motion vector (v) obtained by the iterative gradient...
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7302015 |
Motion estimation method for moving picture compression coding
A motion estimation method for moving picture compression coding that finds a motion vector at a high speed without degrading compression rate and image quality that includes estimating an initial...
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7302004 |
Content-based characterization of video frame sequences
A system and process for video characterization that facilitates video classification and retrieval, as well as motion detection, applications. This involves characterizing a video sequence with a...
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7302003 |
Method and device for image interpolation with motion compensation
A method of interpolating images intended to be incorporated, into a sequence of moving images, each between a first original image and a second original image of the sequence, comprises an...
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7301999 |
Quantization method and system for video MPEG applications and computer program product therefor
Digital signals are converted between a first and second format by a conversion process including generating coefficients representing the digital signals. The coefficients may be discrete cosine...
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7298781 |
Method of coding and decoding image
A method of simplifying the arithmetic operation in a global motion compensation process approximates the motion vector field of the whole image without using many parameters. Motion vectors in the...
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7292636 |
Using order value for processing a video picture
A method and apparatus for variable accuracy inter-picture timing specification for digital video encoding is disclosed. Specifically, the present invention discloses a system that allows the...
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7292635 |
Interframe wavelet video coding method
An interframe wavelet video coding (IWVC) method by which an average temporal distance (ATD) is minimized is provided. The IWVC method comprises receiving a group-of-frames and decomposing the...
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