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| Number | Title | Issue Date |
| 8184922 | Digital filter configuration A digital filter configuration for the filtration of a digital video signal, wherein the functions of a zoom filter, in the form of a low-pass filter, which is a polyphase filter, and of at least one peaking filter, in the form of a high-pass filter, are realized, w... | 05/22/2012 |
| 8160381 | Method and apparatus for image noise reduction using noise models A method and apparatus for processing imager pixel signals to reduce noise. The processing includes receiving a target pixel signal, receiving at least one neighboring pixel signal, formulating a dynamic noise signal based at least in part on a value of the target p... | 04/17/2012 |
| 8155469 | Filter circuit, image processing circuit, and filtering method A filter circuit includes: an adder/subtractor that performs at least addition; and a shifter that performs multiplication/division by a power of two through a shift operation. The adder/subtractors and the shifter are configured to obtain a first calculation result... | 04/10/2012 |
| 8155470 | Device for removing noise in image data A device for removing noise by using an adjustable threshold. The device for removing noise in accordance with an embodiment of the present invention determines a difference value between a maximum value and a minimum value of elements of inputted image data, determ... | 04/10/2012 |
| 8150196 | Reduction filter based on smart neighbor selection and weighting (NRF-SNSW) The present disclosure describes a method and apparatus for filtering noise in a video image, comprising receiving a first video image, a second video image and motion information wherein the first image may be an image to be filtered and the second image may be a f... | 04/03/2012 |
| 8139888 | Method for filtering of images with bilateral filters and power images The current invention describes a method for filtering an input image with a bilateral filter. The bilateral filter includes a spatial filter and a range filter. The method constructs a set of power images from an input image including pixels, each pixel having inte... | 03/20/2012 |
| 8139889 | Method, an apparatus and a computer-readable medium for processing a night vision image dataset Method for processing a sequence of at least two image datasets each having at least two pixels, each pixel having an intensity value by calculating a structure tensor for each pixel in an image dataset included in the sequence of image datasets; calculating values ... | 03/20/2012 |
| 8107758 | Block based image processing Block based image processing techniques are described in which one or more processing filters are applied to an image block by block. One or more filters are identified to process an image. Attributes are obtained that describe the one or more filters. Image data is... | 01/31/2012 |
| 8098951 | Image sharpening technique A sharpening technique for digital images for presentation on a display. ... | 01/17/2012 |
| 8098950 | Method and apparatus for segmentation-based image operations A technique is provided for processing image data based upon determination of whether pixilated data tends to represent or exhibit one characteristic or another. Many such characteristics may be considered, such as whether the pixels probably represent structures or... | 01/17/2012 |
| 8086063 | Image display apparatus and method, and program An image display apparatus, that displays a digital image on a screen for check use, includes: an image data storage unit that stores image data of the digital image; an edge detection unit that detects an edge included in the digital image through analysis of the i... | 12/27/2011 |
| 8081836 | Method for filtering of images with bilateral filters and integral histograms The current invention describes a method for filtering an input image with a bilateral filter to produce an output image. The bilateral filter includes a spatial filter and a range filter. The method comprising the steps of: constructing an integral histogram from a... | 12/20/2011 |
| 8073283 | Noise elimination apparatus and noise elimination method A noise elimination apparatus has a subtracting section 11 for obtaining a difference value between input image data and reference image data; a calculation processing section 12a for performing calculation processing of multiplying the differen... | 12/06/2011 |
| 8059909 | Adaptive generation of irregular spatial sub-sampling for images An adaptive filter is applied to samples in an initial pattern of samples. The samples in the initial pattern correspond to a subset of the image pixels which are to be predicted using the samples. A level value of each sample in the pattern is varied. The level val... | 11/15/2011 |
| 8050509 | Method of and apparatus for eliminating image noise A method and apparatus are provided for eliminating image noise to remove spatial-temporal noise and improve visibility. The method includes extracting a spatial-temporal noise level of neighbor pixels around a current pixel, filtering noise of the current pixel by ... | 11/01/2011 |
| 8045820 | System and method for edge direction detection for spatial deinterlace The system for edge direction detection for spatial deinterlace comprises an ignored region detector and an edge direction detection unit. The ignored region detector is configured to receive a first type field of a video frame and to define a search region based on... | 10/25/2011 |
| 8000552 | Image scaling method and related apparatus An apparatus for scaling an input image is disclosed. The apparatus includes a resolution determining circuit and a scaler. The determining circuit determines the resolution of the input image. The scaler includes a scaling filter with an adjustable number of filter... | 08/16/2011 |
| 7995856 | Dynamic range compensation-dependent noise reduction Methods and corresponding apparatus are presented that perform dynamic range compensation (DRC) and noise reduction (NR) together, adjusting the noise reduction parameters in response to the dynamic range compensation decisions. By such a modification of image noise... | 08/09/2011 |
| 7961972 | Method and apparatus for short range motion adaptive noise reduction In one embodiment, the present invention includes a method for generating and storing in a lookup table a first array of next field values for use in generation of weighted pixel values and generating and storing a second array in the lookup table of previous field ... | 06/14/2011 |
| 7945109 | Image processing based on object information A CPU divides an image into plural regions and for each of the regions, generates a histogram and calculates an average brightness Y ave. The CPU determines a focus location on the image by using focus location information, sets a region at the determined location a... | 05/17/2011 |
| 7940994 | Multi-scale image fusion A multi-scale filter pyramid is applied to one or more components of a multi-component input image to produce a fused and enhanced image that can be mapped to a display, such as a color display. ... | 05/10/2011 |
| 7889942 | Dynamic range compensation-dependent noise reduction Methods and corresponding apparatus are presented that perform dynamic range compensation (DRC) and noise reduction (NR) together on a pixel-by-pixel basis, adjusting the noise reduction parameters in response to the dynamic range compensation decisions. By such a m... | 02/15/2011 |
| 7876972 | Filtering of noisy images A method for correcting an image from defects and filtering from Gaussian noise corrects each pixel of the image when it is considered defective and filters it from Gaussian noise in one-pass. The one-pass improves the speed for performing the correcting and filteri... | 01/25/2011 |
| 7860334 | Adaptive image filter for filtering image information This disclosure describes adaptive filtering techniques to improve the quality of captured imagery, such as video or still images. In particular, this disclosure describes adaptive filtering techniques that filter each pixel as a function of a set of surrounding pix... | 12/28/2010 |
| 7860336 | Image conversion device, image conversion method, and recording medium An image conversion device according to an example of the invention comprises a blur estimating unit which estimates a blur state of input image data, a blur changing unit which changes the blur state estimated by the blur estimating unit into an arbitrary blur stat... | 12/28/2010 |
| 7860335 | Method and apparatus for smart signal averaging A method, apparatus, and computer usable program code for signal-to-noise enhancement. In one illustrative embodiment, a system is provided for signal-to-noise enhancement. The system includes a rank order filter and a comparator. The comparator receives an ordered ... | 12/28/2010 |
| 7792383 | Apparatus and method for creating effects in video Creating a blur in a digital image by receiving original pixel values in a frame of image data, and for each pixel position in the digital image being blurred, calculating a blurred pixel value by applying a box filter having a plurality of elements with unity multi... | 09/07/2010 |
| 7787703 | Method and system for extending binary image data to contone image data A method and system converts a binary image into an analog image by first tagging pixels that are part of edges in the digital image and using this tagging information to eliminate such tagged pixels from the digital filtering process. The elimination of such tagged... | 08/31/2010 |
| 7787704 | Enhancing the quality of decoded quantized images A system for image enhancement and, more particularly, a system for enhancing the quality of a quantized image. ... | 08/31/2010 |
| 7760960 | Localized content adaptive filter for low power scalable image processing A localized content adaptive filter system including a tile buffer having an output providing first image information, a frequency analyzer providing a frequency information signal based on frequency content of the first image information, and an adaptive filter whi... | 07/20/2010 |
| 7729555 | Video noise reduction method using adaptive spatial and motion-compensation temporal filters A method includes calculating a mean of a plurality of pixels of a motion window, calculating a pixel amount of pixels similar to a center pixel, calculating a variance of the pixels, determining whether a difference between the center pixel and the mean is greater ... | 06/01/2010 |
| 7724979 | Video preprocessing temporal and spatial filter The invention refers to an apparatus and a method for reducing random noise in a sequence of digital video frames comprising the following steps: 1. for each of the pixels (center pixel) in a frame a set of adjacent pixels is defined; 2. fo... | 05/25/2010 |
| 7672529 | Techniques to detect Gaussian noise A system, apparatus, method and article to filter media signals are described. The apparatus may include a media processor. The media processor may include an image signal processor having multiple processing elements to determine a level of noise for an image using... | 03/02/2010 |
| 7643697 | Accelerative noise filtering method for image data An accelerative noise filtering method for image data is provided. The present invention includes selecting four neighboring pixels around a target pixel in a pattern of a cross shape or X shape, and calculating the absolute value of a difference between the target ... | 01/05/2010 |
| 7630573 | Noise reduction apparatus and method Noise reduction processing in accordance with frequency band is executed. To accomplish this, a image data dividing circuit divides image data into image data having frequencies in a low-frequency region, image data having frequencies in a low- to intermediate frequ... | 12/08/2009 |
| 7627192 | Differentiating half tone areas and edge areas in image processing An image processing apparatus is provided with a luminance component extracting system adapted to extract a luminance component from image data consisting of a plurality of image pixels arrange in a matrix, a first filter, first data being generated as the first fil... | 12/01/2009 |
| 7570834 | Image de-ringing filter An image de-ringing filter system and method are provided. The method comprises: accepting image pixels; collecting data from a first group of pixels neighboring a test pixel; in response to the first group data, deciding if the test pixel includes image ringing art... | 08/04/2009 |
| 7567724 | Image processing apparatus, image processing method, program of image processing method, and recording medium in which program of image processing method has been recorded The present invention is applied, for example, to resolution conversion. An edge gradient direction v1 with the largest gradient of pixel values and an edge direction v2 orthogonal to the edge gradient direction v1 are detected. Edge enhancement... | 07/28/2009 |
| 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 block to be filtered, a motion vector of the block, and reference fram... | 06/23/2009 |
| 7471845 | De-ringing filter An image de-ringing filter system and method are provided. The method comprises: accepting image pixels; collecting data from a first group of pixels neighboring a test pixel; in response to the first group data, deciding if the test pixel includes image ringing art... | 12/30/2008 |
