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7643688 |
Reducing artifacts in compressed images
Systems and methods of reducing artifacts in compressed images are described. In one aspect, spatially-shifted forward transforms of the input image are computed to generate respective sets of...
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7636490 |
Deblocking filter process with local buffers
A system and method that optimizes a de-blocking filter process using local buffers. The local buffers may be off of the memory unit in which image data may be stored. The data associated with the...
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7634150 |
Removing ringing and blocking artifacts from JPEG compressed document images
A method of removing ringing and blocking artifacts from a decompressed digital image. In one method, a background value of the digital image a background region and foreground regions is...
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7630437 |
Filtering method for removing block artifacts and/or ringing noise and apparatus therefor
Provided are a filtering method and apparatus for removing blocking artifacts and ringing noise. The filtering method includes transforming video data on a block-by-block basis, and detecting the...
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7620262 |
Method of reducing a blocking artifact when coding moving picture
A method of coding a moving picture is provided that reduces blocking artifacts. The method can include defining a plurality of defining pixels S 0 , S 1 , and S 2 , which are centered around a...
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7616829 |
Reducing undesirable block based image processing artifacts by DC image filtering
A post-processing manager provides reconstructed block based picture post-processing that is uncoupled from picture decoding by dividing a reconstructed image that was encoded using block based...
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7616830 |
Method and device for reducing blocking artifacts in a compressed digital image without reducing clarity of edges
Artifacts of an incident digital image including pixels carrying information are reduced by determining, for certain pixels being considered from the image, displaced pixels. A displaced pixel...
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7616833 |
Method of reducing a blocking artifact when coding moving picture
A method of coding a moving picture is provided that reduces blocking artifacts. The method can include defining a plurality of defining pixels S 0 , S 1 , and S 2 , which are centered around a...
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7616832 |
Method of reducing a blocking artifact when coding moving picture
A method of coding a moving picture is provided that reduces blocking artifacts. The method can include defining a plurality of defining pixels S 0 , S 1 , and S 2 , which are centered around a...
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7616831 |
Method of reducing a blocking artifact when coding moving picture
A method of coding a moving picture is provided that reduces blocking artifacts. The method can include defining a plurality of defining pixels S 0 , S 1 , and S 2 , which are centered around a...
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7609899 |
Image processing apparatus, image processing method, and recording medium thereof to smooth tile boundaries
An image processing apparatus is disclosed. The image processing apparatus includes a coefficient correction unit for correcting only a high frequency coefficient situated adjacent to a tile...
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7606423 |
Method and apparatus for blocking artifact detection and measurement in block-coded video
A method includes detecting vertical edge pixels in an image and analyzing the detected vertical edge pixels by horizontal location in the image to detect a spatial periodicity in the detected...
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7599571 |
Method of reducing a blocking artifact when coding moving picture
A method of coding a moving picture is provided that reduces blocking artifacts. The method can include defining a plurality of defining pixels S 0 , S 1 , and S 2 , which are centered around a...
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7593592 |
Method of detecting blocking artifacts
Blocking artifacts within a sequence of digital images are detected by detecting a grid corresponding to the blocking artifacts. A portion of a digital image is high-pass filtered to supply a set...
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7593601 |
Image processing device, method, and program
The present invention enables processing results which are more accurate and which have higher precision as to events of the real world to be obtained. A non-continuity component extracting unit ...
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7590296 |
Image coding apparatus and method in which a loop filter performs a filtering process on each image block of an image
An image coding apparatus includes an image characteristic determination unit configured to divide input image data into image blocks each including a plurality of pixels, and to determine a...
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7577314 |
Method and apparatus for generating a panorama background from a set of images
A method of generating a panorama background from a set of images comprises dividing each of the images into blocks and comparing color-space features of corresponding blocks of the images to...
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7574060 |
Deblocker for postprocess deblocking
Presented herein are system(s), method(s), and apparatus for a deblocker for postprocess deblocking. In one embodiment, there is presented a decoder system for deblocking video data. The decoder...
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7570818 |
Method for deblocking and transcoding a media stream
A method for deblocking and transcoding a media stream. A coefficient associated with a block of pixels of the media stream is received. A deblocking operation is performed on the coefficient to...
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7561752 |
Image processing apparatus
An image processing apparatus for removing block distortion comprises an area specifying unit 103 for specifying a block distortion area to remove the block distortion therefrom in a...
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7551793 |
Methods and apparatuses for adaptive loop filtering for reducing blocking artifacts
A loop filtering method and apparatus are provided. The loop filtering method includes: calculating blocking effect strength based on coding type information, which specifies the coding type of a...
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7551792 |
System and method for reducing ringing artifacts in images
A method reduces artifacts in an input image. A variance image is generated from the input image. The input image is partitioned into a plurality of blocks of pixels. A set of classifications is...
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7542174 |
Image processing method for reducing jaggy effect
An image processing method for reducing jaggy effect, which is applied in an image output device, is provided. Firstly, a continuous tone image is generated, and continuous tone pixels are defined...
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7542620 |
Robust temporal dithering and filtering
A temporal dithering manager uses temporal dithering to reduce contouring artifacts due to bit limiting. The temporal dithering manager truncates low order bits of an input signal, creates a...
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7532767 |
Removing ringing and blocking artifacts from JPEG compressed document images
A method of removing ringing and blocking artifacts from a decompressed digital image. In one method, a background value of the digital image a background region and foreground regions is...
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7528601 |
Three-dimensional slice-selective multi-slice excitation method in MRT imaging
In a method and apparatus for MRT imaging, data sets acquired from magnetic resonance signals of at least two limited spatial regions of a subject to be examined, (the spatial regions being...
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7515766 |
Apparatus and method for edge handling in image processing
A method and apparatus for hardware-base edge handling in video post-processing. In one embodiment, the method includes the identification of at least one unstored input pixel required to compute...
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7502144 |
Method of preparing bit map
A method of generating a second bit map, improved in first-direction resolution, from a first bit map having a plurality of image-forming pixels arranged two-dimensionally, the method comprising a...
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7492823 |
Signal adaptive filtering method, signal adaptive filter and computer readable medium for storing program therefor
A signal adaptive filtering method for reducing blocking effect and ringing noise, a signal adaptive filter, and a computer readable medium. The signal adaptive filtering method capable of reducing...
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7492959 |
Method of reducing a blocking artifact when coding moving picture
A method of coding a moving picture is provided that reduces blocking artifacts. The method can include defining a plurality of defining pixels S 0 , S 1 , and S 2 , which are centered around a...
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7474788 |
Method and system for enhancing image resolution using a modification vector
An image processing system. An input/output device receives information for pixels in an image corresponding to an object, wherein the information specifies optical properties. A storage device...
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7474800 |
Method and apparatus for removing image compression artifacts
A method and apparatus from removing image compression artifacts includes comparing a center pixel value with a perimeter pixel value to generate a compare pixel value. The compare pixel value is...
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7463291 |
Image data processing method, image data processing apparatus and digital still camera
This invention relates to an image data processing method or the like capable of obtaining a preferable reproduction image based on processed image data even if the image data is short of the unit...
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7454081 |
Method and system for video edge enhancement
A system and method that enhance edges in images by detecting and correcting edges of the components of the image, such as the luma and the chroma components. The luma and the chroma edges may be...
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7440635 |
Method for removing ringing artifacts from locations near dominant edges of an image reconstructed after compression
A method to remove ringing artifacts from locations near dominant edges of an image reconstructed after compression. The image is decomposed into blocks small enough so that each would contain only...
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7432985 |
Image processing method
Pixels in a window, which corresponds to the position of an input pixel and has a predetermined size, are extracted from a reduced image obtained by reducing an input image to a predetermined...
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7430336 |
Method and apparatus for image enhancement for low bit rate video compression
A method and apparatus for deblocking and edge enhancement of block based digital video includes determining that two blocks share a common boundary; measuring edge activity of the common boundary,...
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7426315 |
Method for reducing blocking artifacts
A method for removing blocking artifacts from moving and still pictures, comprising classifying horizontal and vertical boundaries in each picture as blocky or non-blocky; for each blocky boundary,...
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7412109 |
System and method for filtering artifacts in images
A method filters pixels in an image, by first partitioning the image into blocks. Edge block are identified. A variance of an intensity for each pixel in each edge block is determined. Then, each...
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7409103 |
Method of reducing noise in images
An image noise reducing method that can properly reduce CCD noise which emerges in an image imported from a digital camera is provided. The method includes applying a first filtering step to...
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7388999 |
Transformations for denoising images
Systems and methods of denoising images are described. In one aspect, spatially-shifted forward transforms of the input image are computed. Each forward transform is computed based on a denoiser...
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7388996 |
Method for filtering digital images, and a filtering device
The invention relates to a method for reducing visual artefacts in a digital image, which is coded by blocks (B 1 , B 2 , B 3 , B 4 ) and then decoded. In the method filtering is performed to...
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7382923 |
Method and device for processing and decoding a coded digital signal
The present invention concerns a method of processing a coded digital signal containing on the one hand a set of samples of different types obtained by coding a set of original samples representing...
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7370976 |
Projection type image display device
The device has flexure correcting means for operating to rotate a first eccentric cam provided at a central part of a first side of a reflecting mirror, thereby moving up and down the central part...
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7373010 |
Method and device for post-processing digital images
A method of post-processing digital images frequency transforming a set of the pixels to a set of transformed coefficients; extracting original low-frequency coefficients and original...
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7373014 |
Post-processing method for reducing artifacts in block-coded digital images, and post-processing device for actuating such method
A post-processing method reduces artifacts in block-coded digital images. The method includes: dividing an input image into a plurality of image blocks; for each image block, estimating global...
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RE40180 |
Method of filtering an image based on comparisons
A method and apparatus to remove a block effect and a ring effect appearing in a compression-coded image is disclosed. The present invention is especially applicable to an image compression-coded...
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RE40179 |
Method of image filtering based on successive pixels
A method and apparatus to remove a block effect and a ring effect appearing in a compression-coded image is disclosed. The present invention is especially applicable to an image compression-coded...
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RE40178 |
Method of filtering an image
A method and apparatus to remove a block effect and a ring effect appearing in a compression-coded image is disclosed. The present invention is especially applicable to an image compression-coded...
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RE40177 |
Method and apparatus for filtering an image
A method and apparatus to remove a block effect and a ring effect appearing in a compression-coded image is disclosed. The present invention is especially applicable to an image compression-coded...
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