Matches 1 - 50 out of 66 1 2 >


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US20080298473 Methods for Parallel Deblocking of Macroblocks of a Compressed Media Frame  
This invention relates to methods for the parallel deblocking of macroblocks of a compressed media frame, such as a frame from a compressed video stream, to smooth out artifacts and...
US20070237241 Estimation of block artifact strength based on edge statistics  
A method and apparatus estimates the strength of block artifacts in compressed video is described. Block artifacts are associated with the block-based image/video compression schemes. The block...
US20100002953 DETECTION AND REDUCTION OF RINGING ARTIFACTS BASED ON BLOCK-GRID POSITION AND OBJECT EDGE LOCATION  
The invention proposes a method (FIG. 2) and respective devices (FIG. 2) and software for an algorithm to detect and remove ringing artefacts and mosquito noise in decompressed pictures and video....
US20070133896 Ringing artifact reduction for compressed video applications  
A method of reducing ringing artifacts in a compressed digital video signal includes decoding the coded video signal; determining plurality of metric values in a region near at least one pixel,...
US20150206021 METHOD AND APPARATUS FOR SMOOTHING IMAGE  
A method and apparatus for smoothing an image representing foreground or background. The method comprises: dividing the image in a specified granularity; for a block divided containing a blank...
US20090034855 Method for Determining Boundary Strength  
A method for determining the boundary strengths of edges in a block-based digitally encoded image is disclosed. The method includes setting the boundary strength of two adjacent blocks in an Inter...
US20050018922 Block distortion reduction apparatus  
A block distortion reduction apparatus, enabling easy processing by a small-sized circuit configuration and enabling generation of block distortion reduction parameters by any area unit inside a...
US20060126962 Methods and systems for reducing blocking artifacts with reduced complexity for spatially-scalable video coding  
Embodiments of the present invention comprise systems and methods for characterization of block boundaries for filtering operations in spatial scalable video coding. Some embodiments of the...
US20100033633 DETECTING BLOCK ARTIFACTS IN CODED IMAGES AND VIDEO  
A method is provided for block artifact detection and block artifact determination using multiple features in coded images and video. A method includes identifying a plurality of overlapping...
US20070223838 Detecting compositing in a previously compressed image  
In a method and system for detecting digital image compositing, a first artifact is detected in an uncompressed digital image. The first artifact is characteristic of an earlier compression of the...
US20050025384 Method for eliminating a color edge and apparatus thereof  
A method for eliminating a color edge on a digital color image includes finding a boundary between two color blocks on the digital color image, and finding a suitable parameter to adjust the color...
US20080240604 Performing deblocking on pixel data  
In one embodiment, the present invention includes a method for receiving pixel data for a portion of an image including a blocking artifact, calculating an artifact strength based on a difference...
US20080069471 Image de-blocking method  
An image de-blocking method includes in a first stage, obtaining at least de-blocking pixel data of the first row of pixels and the second row of pixels according to at least the decompressed...
US20090161982 Restoring images  
The specification and drawings present a new method, apparatus and software product for restoring (i.e., de-noising and/or stabilizing) images using similar blocks of pixels of one or more...
US20070076973 Method and apparatus for detecting and deblocking variable-size grid artifacts in coded video  
A method may include receiving image information. Blockiness artifacts are detected in the image information, wherein the detected blockiness artifacts are associated with different grid sizes.
US20080037895 Apparatus for performing loop-filtering and additional filtering on pixels of an image  
In one embodiment, loop-filtering is performed by a decoder on four successive pixels if obtained quantization information for a first block is greater than the threshold value and the type of the...
US20100014596 SYSTEMS AND METHODS FOR IMPROVING THE QUALITY OF COMPRESSED VIDEO SIGNALS BY SMOOTHING BLOCK ARTIFACTS  
The present invention is directed to systems and methods in which, for a given amount of data required to represent a compressed video signal, the quality of the uncompressed displayed real-time...
US20090060376 BLOCKING EFFECT REMOVAL SYSTEM AND METHOD  
A blocking effect removal system and method is provided. A blocking effect removal system, including: a pixel segment extraction unit to extract a pixel segment which satisfies a homogeneity with...
US20080159637 Deblocking filter hardware accelerator with interlace frame support  
According to some embodiments, systems, methods, and apparatus are provided to load video data into a hardware accelerator that is not adapted to receive interlace frames, wherein the video data...
US20050196066 METHOD AND APPARATUS FOR REMOVING BLOCKING ARTIFACTS OF VIDEO PICTURE VIA LOOP FILTERING USING PERCEPTUAL THRESHOLDS  
A video processing method and a related device for processing blocking artifacts between two blocks within a video picture uses loop filtering and compares two boundary edge pixels at both sides...
US20080247664 SYSTEM AND METHOD FOR AN ADAPTIVE DE-BLOCKING FILTER AFTER DECODING OF COMPRESSED DIGITAL VIDEO  
A system and method that adjusts the strength of a de-blocking filter to remove block artifacts in compressed video is disclosed. Block artifacts are associated with the block-based image/video...
US20050013494 In-loop deblocking filter  
An improved deblocking filter for a video encoder/decoder reduces the computation expense of evaluating deblocking conditions. The improved deblocking filter bases the decision to filter block...
US20050024651 Adaptive complexity scalable post-processing method  
The invention provides a system and a method suitable for adaptive post-processing of media data in an electronic device. The system comprises one or more post-processing modules...
US20100111422 System and method for reduction of block noise  
A block noise reduction system and method which may determine a feature value of a local texture at each location of input pixel, may selectively determine 1D filtering mode or 2D filtering mode...
US20080013854 IMAGE NOISE DETECTION  
An image comprises columns and rows of blocks of pixels. In each row and/or column, a series of pairs of blocks of pixels comprise first and second adjacent blocks of pixels, with the second block...
US20060262990 Dual-mode high throughput de-blocking filter  
This invention provides the unique and high-throughput architecture for multiple video standards. Particularly, we propose a novel scheme to integrate the standard in-loop filter and the...
US20100150470 SYSTEMS AND METHODS FOR DEBLOCKING SEQUENTIAL IMAGES BY DETERMINING PIXEL INTENSITIES BASED ON LOCAL STATISTICAL MEASURES  
Systems and methods are presented for improving the quality of an image as perceived by the Human Vision System by smoothing block artifacts in an image. In one embodiment, smoothing is...
US20090003724 Block noise reducer  
A block noise reducer detects block boundaries in all components of an input video signal and smoothes the different components selectively on the basis of the detected block boundaries and their...
US20110116714 Image interpolation method and apparatus using reference block based on direction  
Provided is an image interpolation method and apparatus using a reference block depending on a direction. The image interpolation method may generate a horizontal reference block and a vertical...
US20060269149 Encoding and decoding apparatus and method for reducing blocking phenomenon and computer-readable recording medium storing program for executing the method  
Provided is an encoding method capable of reducing a blocking phenomenon that occurs when moving-images are encoded and decoded. The method includes: performing a first encoding operation on an...
US20060274959 Image processing to reduce blocking artifacts  
Processing to reduce blocking artifacts in an image comprising a first image block and a second image block separated by a block boundary, includes, generating a main gradient value which is a...
US20050163395 Video signal post-processing method  
The present invention relates to a method of post-processing pixels contained in a sequence of digital images. Said method comprises a step (200) of detecting pixels belonging to natural contours...
US20080181530 Image processing apparatus and method for reducing blocking effect and Gibbs effect  
This invention discloses an image processing apparatus comprising a filter module, an edge detection module, and a processing module. According to where each pixel locates in an image block, the...
US20080187237 Method, medium, and system reducing image block noise  
A method, medium, and system reducing block noise of a digital image, including an encoding/decoding method, medium, and system. The method of reducing block noise of a digital image includes...
US20050201633 Method, medium, and filter removing a blocking effect  
Provided are a method, medium, and filter for removing discontinuity of an image. The filtering method includes determining the direction or gradient on a boundary of a block of an image divided...
US20060291743 Configurable motion compensation unit  
According to some embodiments, a first filter receives input pixel information and provides a first output. A buffer stores the first output, and a second filter receives information from the...
US20090220169 IMAGE ENHANCEMENT  
A bilateral filter is implemented to allow a digital image to be enhanced while mitigating the formation of ringing artifacts or halos within the image. The bilateral filter allows the digital...
US20080298715 IMAGE ANALYSIS METHOD  
The present invention relates to an image analysis method for analyzing an image. By inputting starting point coordinates and ending point coordinates of individual image blocks contained in the...
US20080152017 MPEG NOISE REDUCTION  
A method of processing an image based upon edge energy is disclosed. The method comprises providing (100) an edge map (540) for a group of pixels, classifying (100, 110, 120) pixels in the group...
US20080101718 Apparatus and method for deblock filtering  
A method of processing a frame including a plurality of macro-blocks is provided. Each of the macro-blocks respectively includes M pixels. A local buffer is previously provided. The capacity of...
US20070280552 Method and device for measuring MPEG noise strength of compressed digital image  
A method and system is provided for estimating the strength of block artifacts at each block boundary, based on global and local edge statistics computed from the input image (frame or field...
US20090097775 VISUAL PROCESSING DEVICE, VISUAL PROCESSING METHOD, PROGRAM, DISPLAY DEVICE, AND INTEGRATED CIRCUIT  
It is possible to inhibit artifacts, even when a special image has been input. The visual processing device of the invention is provided with a spatial processing portion (10) that extracts...
US20080199102 Block noise detector and detection method, and block noise reducer and reduction method  
A block noise detector has a spatial difference calculator that calculates differences between values of adjacent pixels. A spatial difference comparator detects edges by comparing the calculated...
US20060034531 Block noise level evaluation method for compressed images and control method of imaging device utilizing the evaluation method  
The technique of the invention converts an object RGB image into an image in a YIQ color space, calculates a luminance variation at each target pixel from Y channel values of the target pixel and...
US20080095461 Apparatus and method for determining filter condition area in deblocking filter  
An apparatus for calculating a boundary strength on a macroblock basis to determine a filter condition area in a deblocking filter includes a memory unit for storing a table containing a filter...
US20080043853 Deblocking filter, image encoder, and image decoder  
A deblocking filter, an image encoder, and an image decoder perform edge-filtering of moving-image data which can be divided into blocks, on groups of a predetermined number of pixels arrayed...
US20080123988 IMAGE PROCESSING METHOD AND DEVICE FOR PERFORMING BLOCK EFFECT REDUCTION  
The present invention provides an image processing method for processing an image. The method includes: detecting at least an edge in the image; selecting at least a first pixel and at least a...
US20100232697 IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD  
An image processing apparatus includes a gradient calculator that calculates a direction and a magnitude of a gradient of each pixel in an input image using neighboring pixel values; a histogram...
US20070140583 METHOD FOR IMPROVING IMAGE QUALITY AND IMAGE PROCESSOR FOR SAME  
In order to improve image quality of high compression ratio images, a de-blocking process is performed on decoded image data, and then an edge enhancement process is performed on the de-blocked...
US20060008013 Method and system for performing deblocking filtering  
A system and method for filtering a frame, the method includes: (i) processing, by a processing unit executing instructions, at least one portion of a frame to provide at least one processed frame...

Matches 1 - 50 out of 66 1 2 >