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| Number | Title | Issue Date |
| 8107011 | Method and system for video evaluation in the presence of cross-chroma interference Described herein is a method and system for video sequence evaluation in the presence of cross-chroma interference. When the luma and chroma components in an analog video sequence are separated, the luma component may add interference to the chroma component. This i... | 01/31/2012 |
| 8035748 | Method and system for reducing composite video cross-chroma artifacts in movie material for a deinterlacer Herein described is a method and system for generating an improved video output when deinterlacing pull-down video. The improvement results from reducing cross-chroma artifacts. In a representative embodiment, the method comprises first computing an adjusted chroma ... | 10/11/2011 |
| 7932954 | Cross color and dot disturbance elimination apparatus and method According to one embodiment, an apparatus includes an average calculation portion which performs a average calculating process between frames by use of an input signal and one-frame delay signal and acquires an output signal having cross color and dot disturbance co... | 04/26/2011 |
| 7920211 | Cross-color/dot interference reduction circuit, imaging apparatus having cross-color/dot interference function, and cross-color/dot interference reduction method A cross-color/dot interference reduction circuit according to one embodiment of the present invention includes a signal generation unit configured to calculate a difference in an input signal between adjacent frames and generate a difference signal, a component extr... | 04/05/2011 |
| 7868950 | Reducing noise and artifacts in an image In a method of processing an input image, compression parameters of the input image are determined and luminance artifacts in the input image are reduced to obtain an improved luminance component of the input image, where the determined compression parameters guide ... | 01/11/2011 |
| 7847862 | Methods for cross color and/or cross luminance suppression A method for processing an image in a video data is provided. The video data has a plurality of frames. The method includes: obtaining a plurality of differences, each difference in the plurality of differences being obtained from two frames that are one frame apart... | 12/07/2010 |
| 7697075 | Color-crossing error suppression system and method for decoded composite video signals A method and system for suppressing color-crossing error in decoded video signals is presented. The color-crossing error suppression method and system uses a first suppression technique at a pixel location for a first subset of fields exhibiting color-crossing error... | 04/13/2010 |
| 7671925 | Circuits, methods, and computer program products for reducing cross-color artifacts in video data A circuit for reducing cross-color artifacts in video data can include three luminance/chrominance (Y/C) separator circuits each configured to provide sets of chrominance coordinates based on a respective three contiguous composite video frames. A first circumcircle... | 03/02/2010 |
| 7599008 | Method and/or apparatus for cross-color and cross-luminance suppression using shimmer detection An apparatus comprising one or more delay circuits, a shimmer detector circuit, an averaging circuit, and a multiplexer. The delay circuits may be configured to have a delay of one or more frame periods based on the format of the input video signal. The shimmer dete... | 10/06/2009 |
| 7567300 | Video signal processor A video signal processor recursively removes noise from luminance signal data, storing only one frame of the luminance signal data, and detects luminance motion by comparing the current and stored luminance data to decide whether to output the current color differen... | 07/28/2009 |
| 7554610 | Color-crossing error detection system and method for decoded composite video signals A method and system for detecting color-crossing error in decoded video signals is presented. The color-crossing error detection method and system detects a color-crossing pattern in a set of corresponding pixels that share a pixel location. Each pixel of the set of... | 06/30/2009 |
| 7532254 | Comb filter system and method I describe and claim a temporal comb filtering system and method. The temporal comb filter system includes a comb filter to temporally process separated luminance and chrominance components from an image field responsive to image data from at least one other image f... | 05/12/2009 |
| 7420624 | Three-dimensional video composite signal demodulating method and system capable of inhibiting pseudo-color noises A three-dimensional video composite signal demodulating method and system capable of inhibiting pseudo-color noises. The system has a two-dimensional luminance and chroma signal separator, a three-dimensional luminance and chroma signal separator, a luminance weight... | 09/02/2008 |
| 7355655 | Systems and methods for separating luma and chroma information in a composite video signal Systems and method are provided for luma-chroma separation. A demodulator system demodulates a composite video signal to produce at least two baseband chroma signals. A given baseband chroma signal contains chroma information for one of a plurality of video frames c... | 04/08/2008 |
| 7345710 | Systems and methods for processing composite television signals Signal processing methods and systems for cross-color suppression. A chrominance signal extracted from a composite TV signal by s Y/C separator is provided to a chroma demodulator to produce a baseband chrominance signal. A chroma regulator regulates the baseband ch... | 03/18/2008 |
| 7304688 | Adaptive Y/C separator The present invention provides an apparatus and method for an adaptive Y/C separator that selects between input filters responsive to features of video signals. The adaptive Y/C separator can monitor the results of numerous filters and choose a combination of separa... | 12/04/2007 |
| 7280159 | Method and apparatus for cross color and/or cross luminance suppression A method and apparatus for cross color and/or cross luminance suppression. The apparatus checks for three conditions in determining the stillness of an image. Similarity between two frames, which are one frame apart, is examined. Similarity between two adjacent fram... | 10/09/2007 |
| 7271850 | Method and apparatus for cross color/cross luminance suppression According to embodiments of the present invention, a method for processing an image in a video data is disclosed. The video data comprises at least a first frame and a second frame. The first frame is composed of a first even field and a first odd field, while the s... | 09/18/2007 |
| 7227587 | System and method for three dimensional comb filtering A system and method for determining whether to process a signal using three-dimensional comb filtering. Various aspects of the present invention may comprise method steps and system components that generate an inter-frame chroma signal. Various aspects may generate ... | 06/05/2007 |
| 7158189 | Adaptive non-linear noise reduction techniques An impulse-reducing module (200) reduces random noise in video pixels by providing an impulse detector (244) and an impulse reducer, such as a median filter (250). The impulse detector (244) generates filter control signals in response to... | 01/02/2007 |
| 7148996 | Multi-spectral image compression with bounded loss A system and method for generating bounded-loss color transformation employed in the compression and decompression of multi-spectral images is provided. The bounded-loss color space transformations provide transformations from a first color space to a second color s... | 12/12/2006 |
| 7133569 | Aliasing artifact attenuation system A multi-resolution filter is provided that may be used to attenuate aliasing artifacts in a digital input signal, such as a digital image acquired by a digital camera. The multi-resolution filter reduces the resolution of the digital input signal and filters the red... | 11/07/2006 |
| 7106277 | Image display apparatus and method The effect of the fluctuation of a signal that is caused by interference between the lines of an image display apparatus can be reduced. For this purpose, an image display apparatus comprises a plurality of lines, a plurality of display devices to which signals are ... | 09/12/2006 |
| 7098957 | Method and apparatus for detecting repetitive motion in an interlaced video sequence apparatus for processing interlaced video signals Interlaced video signals are processed by mixing spatially interpolated video signals with temporally interpolated video signals. The respectively interpolated signals are mixed in dependence on a degree of motion at the given location in the video picture, as defin... | 08/29/2006 |
| 7095445 | Method of detecting motion in an interlaced video sequence based on logical operation on linearly scaled motion information and motion detection apparatus A motion decision value provides a dependable estimate whether motion occurs in a given region of a video image in an interlaced video sequence. The motion detection is particularly applicable in the conversion from interlaced video to progressive video. An input fi... | 08/22/2006 |
| 7082218 | Color correction of images A raw image consists of a plurality of pixels in a plurality of color planes giving a color image. The raw image is split into at least a low frequency image and a high frequency image. At least the low frequency image is color corrected to produce a color corrected... | 07/25/2006 |
| 7061546 | Arrangement for processing video signals An arrangement for processing video signals comprises at least one linear filter and at least one non-linear filter with inputs for an input signal and selection means for receiving output signals of the at least one linear and of the at least one non-linear filter ... | 06/13/2006 |
| 7046299 | Digital video synchronizer with both decoded digital and undecoded analog outputs A digital video synchronizer for providing parallel and coordinated synchronization paths for decoded and undecoded video. Processing is added for a parallel path in a synchronization memory that bypasses the comb filter and video decoder circuitry to allow a digiti... | 05/16/2006 |
| 7012651 | Video signal processing method and apparatus A video signal processing method and apparatus eliminates dot crawls and cross color interferences from a component video signal that has been subjected to Y/C separation. Components at a horizontal frequency of 3.58 MHz and a temporal frequency of 15 Hz are extract... | 03/14/2006 |
| 6999100 | Method and apparatus for anti-aliasing in a graphics system A graphics system including a custom graphics and audio processor produces exciting 2D and 3D graphics and surround sound. The system includes a graphics and audio processor including a 3D graphics pipeline and an audio digital signal processor. The system achieves ... | 02/14/2006 |
| 6958783 | Adaptive non-linear noise reduction techniques An impulse-reducing module (200) reduces random noise in video pixels by providing an impulse detector (244) and an impulse reducer, such as a median filter (250). The impulse detector (244) generates filter control signals in response to... | 10/25/2005 |
| 6956620 | Apparatus for separating a luminance signal and a chrominance signal from an NTSC composite video signal An apparatus for separating luminance and chrominance signals from an NTSC composite video signal includes first through fourth delayers connected to a digital composite video signal in series for delaying input signals each by 1, a first filter for separating a fir... | 10/18/2005 |
| 6947060 | Image forming apparatus, electron beam apparatus, modulation circuit, and image-forming apparatus driving method An image forming apparatus which performs pulsewidth modulation with a pulsewidth set by counting a clock. Especially, for grayscale level correction by setting the frequency of the clock, the periodic clock is counted, and an output pattern is changed in accordance... | 09/20/2005 |
| 6914638 | Three-dimensional enhancement processing for television broadcasting signals A method and an apparatus of decoding a television broadcasting signal are disclosed. In one embodiment, an improved video decoder converts the video signal into a digitized video signal. The improved video decoder then separates luminance information and chrominanc... | 07/05/2005 |
| 6900848 | Crosstalk reduction in a video signal selector A video signal input selector is subject to cross coupling between selectable video signals. The input selector comprises a video amplifier coupled to amplify a video signal selected from said selectable video signals. A controllable switch has first and second elem... | 05/31/2005 |
| 6894728 | Method for equalizing a VSB high definition television signal in the presence of co-channel interference A method and apparatus for equalizing a signal containing high definition television information in the presence of co-channel NTSC interference employs an equalizer having feed forward and decision feedback filters. A comb filter is inserted ahead of the equalizer ... | 05/17/2005 |
| 6816155 | Method of correcting gradation and image display system employing the same The method of gradation correction of input image data to be displayed on an image display apparatus converts to logarithmic data first characteristic values which represent the display characteristics inherent in the image display apparatus and second characteristi... | 11/09/2004 |
| 6671420 | Method for processing saturated intervals in video sequences A method for processing saturated video intervals in a video sequence. The method either removes or retains the saturated interval. If the interval is removed, the sequence is altered to accommodate the removal. The accommodation is either complete elimin... | 12/30/2003 |
| 6333764 | Video signal luminance and chrominance separation A video signal decoder including a comb filter characterised by means for changing the operating mode of the filter progressively. Also, a video signal decoder including a comb filter characterised by means for adjusting continuously the degree of filteri... | 12/25/2001 |
| 6332056 | Circuit arrangement for processing a video signal, including means for avoiding a vertical color shift at horizontal color transitions A video recorder, includes: a filter for performing a comb-filtering operation and supplying a comb-filtered component of a video signal; controllable influencing apparatus for terminating the output of the comb-filtered component and activating instead, ... | 12/18/2001 |
