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6714661 |
Method and system for customizing facial feature tracking using precise landmark finding on a neutral face image
The present invention is embodied in a method and system for customizing a visual sensor for facial feature tracking using a neutral face image of an actor. The method may include generating a...
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6714683 |
Wavelet based feature modulation watermarks and related applications
A watermark embedder decomposes a media signal from its perceptual domain to subbands and embeds a message signal in the edge information of neighboring coefficients of those subbands. A compatible...
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6714684 |
Subband image compression of blocks within a bounded shape using a resolution transform
System consistent with this invention comprise a first coding part configured to code a map signal indicative of the position and shape of a content in a screen inputted for every square block of...
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6711298 |
Digital signal coding, decoding and transmission, with decomposition into frequency sub-bands and segmentation
The invention concerns a method of coding a set of data (IM) representing physical quantities, characterized in that it includes the steps of: decomposing (E 20 ) the set of data into a plurality...
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6711299 |
Wavelet transformation of dithered quantized/reduced color pixels for color bit depth image compression and decompression
A wavelet-based image compression system and method are presented. Compression is accomplished by performing a wavelet transformation of an input digital image. The resulting wavelet coefficients...
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6707948 |
Image compression for memory-constrained decoders
Image data to be printed is compressed with an encoding algorithm, preferably a Teng and Neuhoff algorithm, or else a wavelet zerotree algorithm including the embedded zerotree wavelet (EZW) or set...
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6704455 |
Image processing system and image processing method
A dividing portion divides input image data into a plurality of block data, a block expressed by each of said plurality of block data comprising a pixel matrix of the same predetermined size. A...
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6704454 |
Method and apparatus for image processing by generating probability distribution of images
An apparatus and a concomitant method for modeling local and non-local information in an image to compute an image probability distribution for the image is disclosed. In one embodiment, such an...
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6704440 |
Method and apparatus for processing a medical image containing clinical and non-clinical regions
A method and system for pre-processing a radiation image containing a clinical region of interest and a non-clinical region. The method includes forming a border proximate the clinical region and...
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6697521 |
Method and system for achieving coding gains in wavelet-based image codecs
A method and system for coding a RGB image in an encoder and a decoder. In the encoder, the RGB image components are converted into YUV components. One or more of the lower bit-planes of YUV...
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6683991 |
Method and apparatus for representing a digital image to provide a coded representation
The method encodes a digital image to provide a compressed coded representation of the image. The method firstly performs a multi-level 2-D DWT transform ( 410 ) on the entire image, which is...
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6683990 |
Image data encoding apparatus
An image data encoding apparatus includes a wavelet transform unit which produces a first subband coefficient and a second subband coefficient as an output in response to each of blocks of the...
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6681051 |
Arrangement for transforming picture data
In an arrangement for transforming picture data while using a method of two-dimensional hierarchic sub-band segmentation, particularly a two-dimensional Discrete Wavelet Transformation (2-D DWT),...
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6681199 |
Peak time detecting apparatus and method
A product-sum operation portion for performing a product-sum operation (wavelet transformation) with respect to an input time-series signal by using as a base of integral a complex function in...
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6678421 |
Subband coefficient prediction with pattern recognition techniques
A method and an apparatus for estimating the upper frequency band coefficients solely from low frequency information in a subband multiresolution decomposition. In operation, a Bayesian classifier...
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6678419 |
Reordering wavelet coefficients for improved encoding
An encoder reorders quantized wavelet coefficients to cluster large and small wavelet coefficients into separate groups without requiring the use of data-dependent data structures. The coefficients...
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6678422 |
Method and apparatus for image data compression with low memory requirement
A method and apparatus for performing a multi-stage wavelet transform on a block of image data, using a smaller memory than would be required to implement an equivalent conventional multi-stage...
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6674915 |
Descriptors adjustment when using steerable pyramid to extract features for content based search
A method of adjusting image descriptors when using steerable pyramid to extract features for content-based search is disclosed in this invention. Using steerable pyramid, the original image is...
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6674911 |
N-dimensional data compression using set partitioning in hierarchical trees
A data structure in a computer memory for use in encoding and decoding an N-dimensional subband decomposition of data points includes, after initialization, three lists: a list of insignificant...
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6671412 |
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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6671416 |
Method for transmitting data using an embedded bit stream produced in a hierarchical table-lookup vector quantizer
A transmission method for video image data using an embedded bit stream in a hierarchical table-lookup vector quantizer comprises the steps encoding an image using hierarchical vector quantization...
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6661925 |
Functional set compression
A method of compressing image data from a set of individual images wherein the images have a correlation between images of approximately greater than 0.5. A wavelet transform is applied to a...
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6658158 |
Wavelet encoding method and apparatus and wavelet decoding method and apparatus
A wavelet encoding method and apparatus and a wavelet decoding method and apparatus for pictures. A input picture is split into plural tile pictures and wavelet transform is applied to input...
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6658162 |
Image coding method using visual optimization
A method for compressing and decompressing image information. An encoder receives initial image information and transforms said initial information using a linear transform to produce coefficients....
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6650783 |
Image processing apparatus and method for processing images with different scalabilites
A single base layer is formed by reducing information of input image data with at least a plurality of scalable factors, and a plurality of enhancement layers having information associated with a...
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6647149 |
Methods and apparatus for securely transmitting and processing digital image data
Methods and apparatus are provided for securely transmitting and processing digital image data for display. The invention provides for decomposing, compressing, and scrambling digital image data...
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6643406 |
Method and apparatus for performing linear filtering in wavelet based domain
Disclosed herein are a method, apparatus and computer usable medium for linear filtering with filters of any desired shape and length using the wavelet transform as the computation engine by...
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6643407 |
Method of compressing multi-spectral image
The method of compressing a multi-spectral image formed of a plurality of elemental images having different spectral distribution ranges calculates an average image and a superior average image by...
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6643405 |
Image processing apparatus and method and computer-readable storage medium
It is an object to obtain compressed image data in which a compression ratio has been recorded. To accomplish it, an image processing method has a first compressing step of compressing by using an...
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6640015 |
Method and system for multi-level iterative filtering of multi-dimensional data structures
A system and method for multi-level iterative filtering of a data structure, e.g., an image, wherein elements of the data structure form the zero layer in the zero level and the data layer in each...
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6639591 |
Entertainment apparatus, storage medium, and method of deciding weather
More reality is given to weather phenomena reflected on an image displayed on a screen of a display unit and on operability of an operatable object. A global weather deciding part 901 decides...
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6636643 |
System and method for improving compressed image appearance using stochastic resonance and energy replacement
A method for improving the image quality of a compressed image is provided. The improvement relates to the addition of certain error components resulting a less “clean” image, also referred to...
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6633679 |
Visually lossless still image compression for CMYK, CMY and Postscript formats
A method and apparatus for visually lossless compression encoding and decoding is described. The present invention includes a method for compression of color image data directly from the CMYK color...
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6633682 |
Progressive fractal rendering
A method for producing an image. The method includes the steps of forming a procedural representation of the image. Then there is the step of taking samples of the image. Next there is the step of...
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6633670 |
Mask generation for multi-layer image decomposition
To improve compression efficiency and decompressed image quality, images are decomposed into separate layers each containing a limited number of image element types (text, line art, or...
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6631212 |
Twostage scheme for texture segmentation based on clustering using a first set of features and refinement using a second set of features
A method and system for segmenting textures in an image includes computing multiresolution simultaneous autoregressive (MSAR) features in the image, preparing an uncertainty map of the MSAR...
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6628827 |
Method of upscaling a color image
A method of upscaling a color image in a first color space format to a second color space format may include the following. A color image in a first color space format may be transformed to a...
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6625309 |
Image partitioning to avoid overlap transmission
Image partitioning methods, which may be implemented by software or hardware on a computer, partition a set of multiple overlapping images to be transmitted so that only the visible portions of the...
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6618501 |
Object similarity calculation method and apparatus
Although methods employing chain codes or Fourier descriptors are known for calculating an outline similarity between a model image and an object image, these methods are difficult to achieve...
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6614939 |
Image compression apparatus and decoding apparatus suited to lossless image compression
An image compression apparatus for outputting compressed image information that is suited to progressive image reproduction where completely lossless reproduction is possible without having to use...
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6611627 |
Digital image processing method for edge shaping
A digital image processing method, includes the steps of: transforming the digital image using an edge sensitive wavelet transform to produce a plurality of wavelet coefficients at various...
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6606416 |
Encoding method and apparatus for representing a digital image
The method encodes a digital image to provide a compressed representation of the image. The method initially performs a multi-level 2-D Discrete Wavelet Transform on the digital image, which is...
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6606412 |
Method for classifying an object in a moving picture
The invention provides a method for classifying the motion of an object such as a human being in a moving picture. A template is prepared in advance, which includes the Gabor wavelet expansion...
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6603882 |
Automatic template generation and searching method
A fast multi-resolution template search method uses a manually selected or an automatically selected template set, learned application specific variability, and optimized image pre-processing to...
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6594391 |
Method and apparatus for texture analysis and replicability determination
An image or other information signal having a texture is analyzed along perceptual dimensions such as directionality, symmetry, regularity and type of regularity. A wavelet decomposition or other...
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6594397 |
Adaptive multi-modal motion estimation for video compression
An adaptive multi-modal motion estimation algorithm for video compression builds a luminance pyramid for each image of a moving image sequence. From the top level image of the luminance pyramid a...
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6591017 |
Wavelet transform method and apparatus
An image signal encoded for compression using a wavelet transform as a transform system is to be decoded at a resolution corresponding to an optional rational number. To this end, the wavelet...
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6587589 |
Architecture for performing two-dimensional discrete wavelet transform
An architecture for performing the two-dimensional discrete wavelet transform includes a transform module including a first stage and a second stage for decomposing an input image into four bands,...
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6587588 |
Progressive image decoder for wavelet encoded images in compressed files and method of operation
A progressive image display decoder and method of operation for wavelet encoded images achieves reduced memory storage requirements for wavelet transform coefficients and reduced execution time in...
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6584230 |
Image decoding of image content within a boundary based on a map resolution transformed signal
Methods and systems decode an image content. Such methods and systems decode a coded map signal indicative of the position and shape of a content in a screen inputted for every block of picture...
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