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6584433 |
Harmonic average based clustering method and system
A harmonic average data clustering method and system. First, a plurality of data points for clustering is received. Next, a number K of clusters is also received. Then, K center points are...
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6584228 |
Image coding embedded in matrix operation
An image coding embedded in matrix operation. A sorting and refining processes are merged, based on matrix and the stream control mechanism, a novel concept for embedded image compression in a...
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6580834 |
Method and apparatus for encoding and decoding signals
A method for encoding and decoding an input signal, includes the following steps: applying a transform to the input signal to obtain a transformed signal; quantizing the transformed signal to...
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6580831 |
Compression of optical readout biomolecular sensory data
The present invention provides a system and method for compression of image data while preserving the usable information and eliminating or reducing associated noise in which the image data...
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6577770 |
System and method for a multidimensional, discrete wavelet-transformation
The invention can be used in a wide range of fields including space applications, for observing, measuring and surveying the earth surface with satellites, civilian and military aeronautics, for...
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6574372 |
Wavelet transform coding technique
A wavelet transform coding technique is provided, which may be part of TROBIC or may be used independently in a wide variety of compression applications. The wavelet coding technique is carried out...
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6567081 |
Methods and arrangements for compressing image-based rendering (IBR) data using alignment and 3D wavelet transform techniques
Methods and arrangement are provided for compressing and transporting image-based rendering (IBR) data using alignment and three-dimensional (3D) wavelet transform techniques, and selectively...
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6567562 |
Encoding apparatus and method
Disclosed is an arrangement for easily and quickly performing variable length coding for a multi-valued image, while estimating coding efficiency. To achieve the above objective, an encoding...
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6560369 |
Conversion of wavelet coded formats depending on input and output buffer capacities
An optimum data arrangement is provided such that each apparatus can efficiently deal with image data encoded using discrete wavelet transform. For that purpose, an image processing apparatus...
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6560371 |
Apparatus and method for employing M-ary pyramids with N-scale tiling
An apparatus and a concomitant method for using M-ary pyramid decomposition in combination with N-scale tiling to reduce the computational complexity in determining motion vectors for block-based...
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6556689 |
Watermarking methods for digital images and videos
The present invention relates to multiresolution watermarking methods for digital images which are based on a discrete wavelet transform (DWT). Pseudo-random codes are added to the large...
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6553147 |
Apparatus and method for data partitioning to improving error resilience
An apparatus and a method for partitioning data to improve error resilience. Specifically, one or more segment markers (symbols) are entropy encoded along with the bitstream (payload) into a packet.
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6553148 |
Joint coding method for images and videos with multiple arbitrarily shaped segments or objects
An adaptive image coding method and system are disclosed. The system accepts an input image, divides it into image segments, and assigns each segment to a wavelet transform filter from a bank of...
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6553071 |
Motion compensation coding apparatus using wavelet transformation and method thereof
A motion compensation coding apparatus using a wavelet transformation and a method thereof are capable of detecting a motion vector with respect to a block having a certain change or a motion in an...
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6549673 |
Wavelet-based compression of images for storage, transmission and reconstruction using hierarchical subband decomposition
Data compression achieved by set partitioning of hierarchical trees is made more efficient by a family of related traversal schemes which act upon the tree structure and the significance values...
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6549674 |
Image compression based on tiled wavelet-like transform using edge and non-edge filters
An image processing system tiles an image data array. Each tile of image data is processed by applying a family of transform layers to the tile of image data so as to generate successive sets of...
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6546143 |
Efficient wavelet-based compression of large images
A subband decomposition of an image is performed by filtering the image in a progression of N line windows. In a first filter stage, vertical filters perform high and low pass filtering on each N...
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6546144 |
Image generating method and apparatus
An image generating method and apparatus for high-efficiency recording or displaying of a thumb-nail image or an image converted in resolution. The image display apparatus includes an image...
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6545618 |
Generating lists of positions of coefficients in a code block to be entropy coded
A method of entropy coding symbols representative of a code block comprising transform coefficients of a digital image. The method comprises a significance propagation pass 314 , a magnitude...
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6546146 |
System for interactive visualization and analysis of imaging spectrometry datasets over a wide-area network
The present invention relates to a method of viewing and processing hyper-spectral image data compressed using a VQ algorithm. According to the invention the data is compressed using a codebook of...
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6546142 |
Motion image coding apparatus for performing hierarchical coding
An image coding apparatus inputs pixel data of a part image of high resolution. An upper layer coding portion ( 101 ), a second shape data generating portion ( 102 ), and a second shape data coding...
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6542619 |
Method for analyzing video
A method and system for recognizing scene changes in digitized video is based on using one-dimensional projections from the recorded video. Wavelet transformation is applied on each projection to...
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6542641 |
Method and apparatus for decoding a coded representation of a digital image
The method decodes an compressed representation of a digital image. The compressed representation is in the form of a bitstream comprising in sequence encoded bitplanes each having first portions...
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6539122 |
Adaptive wavelet coding of hyperspectral imagery
A hyperspectral image encoder ( 10 ) for compressing hyperspectral imagery includes a differential pulse code modulation (DPCM) loop ( 26 ) to perform data decorrelation in the spectral domain and...
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6535644 |
Hierarchical foveation based on wavelets
Different images, or sub-images, are rendered at different wavelet decoding rates, the more rapidly decoded wavelets forming a focal region about which less detailed images, or sub-images, are...
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6535647 |
Image encoder method
A system is presented for compression of hyperspectral imagery. Specifically, DPCM is used for spectral decorrelation, while an adaptive 2-D discrete cosine transform (DCT) ( 22 ) coding scheme is...
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6535639 |
Automatic video summarization using a measure of shot importance and a frame-packing method
A measure of importance is calculated for segmented parts of a video. The segmented parts are determined by segmenting the video into component shots and then merging by iteration the component...
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6532307 |
Image retrieval by comparing wavelet encoded database images with input shapes
Since images stored in an image database are encoded, they must be decoded to detect their features. For this reason, when the number of test images is large or each image size is large, the search...
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6532308 |
Quality priority image storage and communication
An image processing scheme that minimizes the amount of data required to process an input image signal but which maintains a guaranteed desired image quality level is disclosed. Transformation and...
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6529634 |
Contrast sensitive variance based adaptive block size DCT image compression
A system and method for image compression utilizing adaptively sized blocks and sub-blocks of discrete cosine transform coefficient data is presented. A block size assignment element in the encoder...
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6529636 |
Picture coding device and picture decoding device
If coding is carried out on the block basis on subband coding of an image, the hierarchical characteristic which a subband image inherently has would be lost. Thus, efficient coding is to be...
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6526175 |
Apparatus and method for packetizing significance-based information
An apparatus and a concomitant method for packetizing significance-based information to improve error resilience is disclosed. Significance-based information comprises “coefficient significance...
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6526176 |
Efficient processing of quadtree data
Processing of quadtree data structures is significantly improved with the use of an indexing that is arranged to insure that the index value of a node in column/row i and column/row j differs from...
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6516029 |
Method and apparatus for adaptive video encoding
New and improved apparatus and methods for video encoding, for example, to efficiently and concurrently apply adaptive encoding techniques to convert analog data into digital formats, such as...
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6510247 |
Decoding of embedded bit streams produced by context-based ordering and coding of transform coeffiecient bit-planes
A method of decoding an embedded bitstream includes the steps of reading encoded subsequences in the bitstream as ordered, decoding at least some of the ordered subsequences, and combining the...
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6510251 |
Wavelet image compression and decompression
In an image data processing system, an insignificant space estimation unit predicts a significant/insignificant space in a high-frequency subband on the basis of a low-frequency subband signal in a...
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6501863 |
Image coding apparatus, image coding method, image decoding apparatus, image decoding method and transmission medium
The present invention relates to an image coding apparatus/method, an image decoding apparatus/method, and a transmission medium, which conduct high-efficiency coding or decoding of an image, and...
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6501860 |
Digital signal coding and decoding based on subbands
The invention proposes a digital signal coding method including a step (E 1 ) of analysing the digital signal (IM) into a plurality of frequency sub-bands, at least one first sub-band having a...
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6501861 |
Scalable coding/decoding methods and apparatus for producing still image using wavelet transformation
Shape information is scalably encoded and decoded by interleaved scan line (ISL) and raster scan line (RSL) methods and the encoded and decoded shape information is used for encoding texture...
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6501859 |
Image compression using wavelet data or original image data depending on code amount
This invention has as its object to implement efficient encoding in correspondence with the characteristics of an image in an arrangement that can transform an input image into a plurality of...
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6487317 |
Conjugate-channel compression of images to be multitoned
Image reconstruction is provided by sending low frequency image information via a first transmission channel and high frequency edge information via a second channel. This provides the needed high...
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6487318 |
Method of relocating wavelet packet coefficient
The present invention is related to a image compression and transmission method, and particularly to a method of relocating a wavelet packet coefficient for a zerotree coding in order to optimize...
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6487319 |
Apparatus and method for identifying the location of a coding unit
An apparatus and a method for identifying the spatial location of a coding unit, e.g., a texture unit (TU), in a hierarchically decomposed image. Specifically, the invention quickly computes and...
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6483609 |
Image processing system, image processing method, image transmitting system, and image transmitting method
A scanner 1 reads image information at read resolution set by a resolution control section 3 and stores the image information in memory 2. An image separation section 11 separates the image...
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6483946 |
Apparatus and method for encoding zerotrees generated by a wavelet-based coding technique
Apparatus and method for encoding zerotrees in a wavelet-based coding technique. The method uses a depth-first pattern for traversing the zerotree, i.e., each branch of the tree, from parent to...
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6480630 |
Encoding and decoding different resolution video signals for display on plural units
An integrative encoding system for encoding and transmitting a plurality of video signals having different resolutions that correspond to a plurality of display units. The integrative encoding...
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6480619 |
Method of displaying part of a radiographic image
A low resolution representation of a radiographic image is calculated and displayed to be used as a tool for defining an image area of interest. The image area of interest is then displayed at a...
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6477279 |
Image encoding and decoding method and apparatus using edge synthesis and inverse wavelet transform
A digitized image is encoded by detecting edges in the image, encoding the position and sharpness of the detected edges, filtering the image by a low-pass filter to generate a low-frequency image,...
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6473526 |
Image processing system and control method of the same, image processing apparatus and control method of the same, and computer readable memory
In an image processing apparatus for managing hierarchical encoded image data by using a server/client system, a server machine transmits encoded image data in one layer designated in units of...
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6473528 |
Shape adaptive technique for image and video compression
A method for wavelet encoding image-representative signals, including the following steps: identifying shape information of a shape in the image; within rows of pixels of a shape, performing...
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