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Document Title |
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9007395 |
Bit resolution enhancement
Devices, systems, apparatuses, methods, and other embodiments associated with bit resolution enhancement are described. In one embodiment, an apparatus includes logic configured to produce a... |
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8797462 |
Image processing apparatus and image processing method
A band processing circuit which generates image signals corresponding to different frequency bands from an image signal in which signals corresponding to different colors are arranged and which... |
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8743287 |
Method and system for mitigating motion trail artifacts and improving low contrast contours in temporal filtering based noise reduction
Current output pictures of video data are generated utilizing a motion compensated (MC) blended picture and a corresponding non-MC blended picture of the video data. Windows of picture data from a... |
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8718448 |
Video pictures pattern detection
Some embodiments of the invention provide a media-editing application that performs frame rate conversion detection on a video. For a video that has been converted from one frame rate and format... |
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8699816 |
Method and apparatus for enhancing detail based on noise elimination, and method and apparatus for calculating noise weight
A method to enhance detail of an image based on noise elimination includes calculating a noise weight corresponding to a probability that a center pixel, located in a block of pixels of a region... |
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8687125 |
Image processing system and display device for carrying out subtraction or addition of a pixel value of a target pixel in accordance with a value equivalent to a noise quantity
An image processing system for processing a target pixel to be processed, which target pixel corresponds to inputted image data, a plurality of pixels including the target pixel being arranged in... |
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8675137 |
Apparatus and method for adaptive filtering
An apparatus and a method for adaptive filtering includes an antenna that receives analog video broadcast signal data; an analog-to-digital converter coupled to the antenna and converting the... |
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8441549 |
Video artifact suppression via rolling flicker detection
A method for suppressing banding and rolling flicker in video acquired by a video camera. The method comprises acquiring a plurality of video frames and assessing an amount of rolling flicker in... |
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8319888 |
Method of determining field dominance in a sequence of video frames
A method of determining field dominance in a sequence of video frames, the method comprising: generating from a first video frame a top field and a bottom field; interpolating the top and bottom... |
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8180169 |
System and method for multi-scale sigma filtering using quadrature mirror filters
A first sigma filtering circuit sigma filters an image to produce a filtered image. An analysis circuit processes the sigma filtered image to produce an approximation part and a detail part. A... |
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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... |
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7932958 |
Integrated analog video receiver
An analog video receiver implemented in an integrated circuit device. The analog video receiver includes an amplifier to amplify an analog video signal having a desired carrier frequency, and a... |
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7853095 |
Apparatus, method, recording medium and program for processing signal
A horizontal direction component pixel extractor extracts a pixel of interest and a horizontal direction component pixel thereof from an input video signal. A vertical direction component pixel... |
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7589585 |
Noise reduction circuit
A noise reduction circuit outputs a signal corresponding to a voltage difference between two different signals. The noise reduction circuit includes: an amplifier circuit for amplifying the two... |
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7453523 |
Noise reduction apparatus
A noise reduction apparatus includes a subtracter receives a motion video signal and finds a difference signal indicative of a difference from a motion video signal preceding by 1 frame and from... |
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7330218 |
Adaptive bidirectional filtering for video noise reduction
A video noise reduction system for reducing video noise in a sequence of video frames. In the video noise reduction system, a temporal filter computes multiple temporal average values for the... |
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7268821 |
Upconversion with noise constrained diagonal enhancement
A method of interpolating a given output pixel value when upconverting interlaced video to progressive video includes the step of determining averages for vertically adjacent pixels, left... |
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7176982 |
Recursive noise reduction with still pixel detection
A system and system for performing adaptive recursive noise reduction with still pixel detection on a video stream is presented. After processing a field pixels that were modified are stored in... |
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7098963 |
Method and apparatus for attenuating image noise
A method of attenuating noise contained in an image signal according to the extent of the movement of the image signal based on the amount of noise, and an apparatus therefor are provided. This... |
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7064793 |
Method and apparatus for measuring the noise contained in a picture
To determine the noise contained in a picture, it is proposed first to determine homogeneous picture regions of the picture (100-102) and then to measure the high-frequency signal component in... |
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7050646 |
Image processing system and method for image segmentation using intensity contrast and depth contrast values
A method and system for processing an image recorded by an imaging device may include: a) providing an image having an array of adjacent elements each corresponding to a respective part of the... |
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6999634 |
Spatio-temporal joint filter for noise reduction
A spatio-temporal joint filter and a spatial joint filter for noise reduction are disclosed. The spatio-temporal joint filter includes a spatial joint filter including the first and second sub... |
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6987542 |
Detection and correction of asymmetric transient signals
The invention relates to a method and apparatus for detecting asymmetry in transient signals and to a method and apparatus for correcting such asymmetry. In the apparatus for detecting asymmetry... |
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6788353 |
System and method for scaling images
A system and method are provided for calculating a target pixel for scaling an image comprising a plurality of source pixels. A contour is determined in the image using at least one of a first set... |
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6784944 |
Motion adaptive noise reduction method and system
A method and system of noise filtering is provided. The pixels of a first filter mask are separated into groups based on luminance . . . The sizes of each group is determined and a largest group... |
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6747697 |
Method and apparatus for digital image defect correction and noise filtering
An adaptive median filter (40) provides dynamic detection and correction of digital image defects which are caused by defective or malfunctioning elements of a radiation detector array (20). The... |
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6731820 |
Image filter circuit and image filtering method
An image filter circuit which realizes a large-scale median filter as a digital circuit which has not been conventionally constructed without difficulty. The filter circuit has a histogram A... |
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6710818 |
ILLUMINATION FLICKER DETECTION APPARATUS, AN ILLUMINATION FLICKER COMPENSATION APPARATUS, AND AN AC LINE FREQUENCY DETECTION APPARATUS, METHODS OF DETECTING ILLUMINATION FLICKER, COMPENSATING ILLUMINATION FLICKER, AND MEASURING AC LINE FREQUENCY
A video signal including illumination flicker component is integrated at each of unit areas (horizontal lines) in a frame (field) of the video signal. The integrated level at each of the unit... |
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6657676 |
Spatio-temporal filtering method for noise reduction during a pre-processing of picture sequences in video encoders
A method of filtering noise from digital pictures includes selecting a first set of pixels including the union of a pixel of the current picture to be filtered and a second set of pixels... |
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6628341 |
Correcting interlaced video
Correcting deinterlaced video by determining whether the deinterlaced video has comb artifact areas, and correcting the comb artifact areas. The detection of comb artifacts includes comparing the... |
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6560287 |
Source coder and its coding method
A source coder for video, compression Of H.261 and H.263 is disclosed, including a subtracter, a coding circuit, a predicting circuit, a picture memory with motion compensated variable delay and a... |
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6433834 |
Method for suppressing noise in signals
The method suppresses noise in a one-dimensional or multi-dimensional signal. A plurality of estimates for the noise-free useful signal are carried out on the basis of a measurement of the noisy... |
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6384872 |
Method and apparatus for interlaced image enhancement
A method for image enhancement for an interlaced display includes receiving a first group of pixels aligned about an axis, detecting a second group of pixels within the first group of pixels, each... |
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6320622 |
De-emphasis filter with integrated determination of achromatic values
A digital de-emphasis filter for a SECAM decoder for converting a sequence of input image data into filtered image data includes at least one recursion register for storing an auxiliary value that... |
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6219101 |
Method and apparatus for video flicker filter
A VGA to analog video converter is useful e.g. for displaying video and/or graphics data from a computer onto a large screen television or television monitor. The RGB video signals output from the... |
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6127956 |
Post-conversion system for an analog-to-digital converter which sets an added bit of resolution if an intermediate sample is within a threshold
Post processing of the converted digital bits from an ADC to provide one or more additional bits of resolution. The additional bits of resolution will be accurate for data which is locally... |
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6100937 |
Method and system for combining multiple images into a single higher-quality image
A method and system for combining a set of n still image frames into a single reduced noise still image. The invention reduces visible noise, along with some television color artifacts, in still... |
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6067125 |
Structure and method for film grain noise reduction
A video signal is both spatially and temporally filtered. The output video signal is temporally noise reduced in portions of the image which exhibits little or no motion, and is spatially noise... |
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5886751 |
Method of eliminating interference signals from video signals
Method of eliminating interference signals from video signals by means of motion-adaptive transversal filtering, in which the motion is detected in the two-dimensional plane for the purpose of S/N... |
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5880791 |
Method and apparatus for filtering data in which the required storage capacity is reduced
In a method of filtering data, including the steps of processing (7) data (O) to obtain reduced data, delaying (9) the reduced data to obtain delayed data, interpolating (11, 13) the delayed data... |
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5777756 |
Video processing apparatus with multiple image signal integration and reduction for decreasing noise
A video processing apparatus uses multiple image signal integration and reduction for decreasing noise. A television camera picks up an image of a still object and outputs image signals... |
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5742355 |
Method and apparatus for reducing noise in a video signal
In a method of processing a video signal including the steps of providing (13) a delayed signal, and furnishing (11) a filtered signal in response to the video signal and the delayed signal, only... |
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5701163 |
Video processing method and apparatus
A video processing method and apparatus for processing video frames comprising animated images so as to blur movement of the animated images between successive frames, the method or apparatus... |
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5625421 |
Suppression of sawtooth artifacts in an interlace-to-progressive converted signal
Jagged vertical or diagonal transition artifacts in interlaced to line doubled progressive scan converted television signals are detected and areas of the television picture having such artifacts... |
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5585859 |
System for reducing beat type impairments in a TV signal
The system for reducing composite beat, composite second order beat and thermal (snow) noise impairments in a television system digitizes individual frames to apply digitized a grey scale values... |
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5534946 |
Apparatus for performing motion-compensated picture signal interpolation
In a motion-compensated picture signal interpolation apparatus comprising switched memories (SMX,LM) for furnishing motion-compensated pixel values corresponding to at least two motion vectors... |
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5528292 |
Electric still camera having a plurality of image pickup elements with color filters
An electronic still camera includes a plurality of image pickup elements having color filters of a plurality of colors; a color separation unit for separating outputs from the image pickup... |
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5519453 |
Method of eliminating interfernce signals from video signals
A method of eliminating interference signals from video signals by motion-adaptive filtering, in which method first a motion signal-dependent transversal filtering and subsequently a median... |
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5471878 |
Method of suppressing grain noise in ultrasonic waveform data by 3D filtering
A method of suppressing grain noise resulting from ultrasonic inspection of an object, including ultrasonically scanning an object and detecting waveform signals therefrom, determining, from the... |
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5448304 |
Process for reducing the noise of a video signal
The present invention is a process for reducing the noise of a video signal (S1), in particular when reproducing a video signal stored on a video recorder, in which a window is defined around... |