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| Number | Title | Issue Date |
| 8184204 | De-ring system and method for reducing the overshooting and undershooting of video signal in a scaler In a de-ring system for reducing the overshooting and undershooting of a video signal after scaling on the horizontal and the vertical direction in a scaler, a region judgment device receives the video signal and detects the attributes of the region in the video sig... | 05/22/2012 |
| 7940333 | Gradation control apparatus and gradation control method According to one embodiment, a gradation control apparatus comprises a coring module configured to change the coring amount of a video signal according to the degree of movement of the video signal, a smoothing module configured to perform a gradation smoothing proc... | 05/10/2011 |
| 7907216 | Display apparatus and control method thereof to selectively decrease a processing time of an image signal A display apparatus including an image receiver receiving an image signal and a display displaying the image signal. The display apparatus includes a user selector, an image signal processor to process at least one image delay decrease mode to decrease a processing ... | 03/15/2011 |
| 7825992 | Video processing apparatus and video processing method A video signal processing apparatus and video processing method are provided, which can reduce an influence of noise and enhance fineness of the image. A signal division unit divides a video signal into a low frequency component and a high frequency component of the... | 11/02/2010 |
| 7511769 | Interframe noise reduction for video A system to reduce noise includes a noise measurement device that provides a measure of noise associated with a digital input video signal. A noise reduction filter provides a noise-reduced digital output video signal corresponding to the luma and chroma of the digi... | 03/31/2009 |
| 7425985 | Image processing apparatus and method A dodging process which brightens a dark portion sometimes makes noise components contained in an image obtained by an image sensor conspicuous. A gray image generator extracts a luminance component Y of an image, an unsharp image generator generates an unsharp imag... | 09/16/2008 |
| 7408590 | Combined scaling, filtering, and scan conversion Techniques for performing combined scaling, filtering, and/or scan conversion are disclosed that reduce that amount of line buffer space required in the overall design of a video processing system. In particular, coefficients from all or a sub-set of the scaling, fi... | 08/05/2008 |
| 7369182 | Generating a scan velocity modulation signal The processing unit (1) for generating a scan velocity modulation signal (DS) has an input for receiving a video signal (VS) and an output for supplying a modulation signal (DS). The unit (1) comprises a series connection of, successively, a coring cir... | 05/06/2008 |
| 7352896 | Method for interpolation and sharpening of images A method, a system, a device, a storage means, and a computer software product for sharpening colours in an image, in which a first colour component is interpolated and sharpened in such a way that the effect of the colour component is computed in different directio... | 04/01/2008 |
| 7333673 | Method and apparatus for image detail enhancement without zigzagged edge artifact A method and system for detecting slant edge areas in an image comprising a plurality of pixels, and for preventing zigzagged slant edge artifacts in an image detail enhancement process. Image pixels that belong to a slant image edge are detected and gain suppressio... | 02/19/2008 |
| 7330592 | Method and apparatus for detecting the location and luminance transition range of slant image edges A system and method for detecting location and luminance transition range of slant image edge in a digital image. The variance value for the pixels inside a window in the image is calculated, based on which a current pixel is classified. If the current pixel is in a... | 02/12/2008 |
| 7304672 | Contour correcting video signal processing apparatus The contour correction processing of a still picture that can suppress the generation of a black edge due to an undershoot in a contour portion is enabled while increasing a feeling for resolution. Moreover, an interpolation device that improves the sharpness of a d... | 12/04/2007 |
| 7305126 | Photo dazzle color temperature correction A method for calculating and adjusting the color temperature of an image includes calculating an average color temperature and adjusting the chromaticity of each pixel of the image according to the average color temperature. The adjustment may be linear across all p... | 12/04/2007 |
| 7301564 | Systems and methods for processing a digital captured image In one embodiment, the present invention is directed to a method for processing a digitally captured image that comprises an imaged document. The method comprises: detecting graphical information related to spatial discontinuities of the digitally captured image; de... | 11/27/2007 |
| 7289161 | Frame data compensation amount output device, frame data compensation device, frame data display device, and frame data compensation amount output method, frame data compensation method In the case where an input signal is an interlace signal such as NTSC signal, a flicker interference as aliasing interference brought about by the sampling theorem is contained in a region where a vertical frequency component is high. Accordingly, in the conventiona... | 10/30/2007 |
| 7274828 | Method and apparatus for detecting and processing noisy edges in image detail enhancement A method and system that detect image pixels of noisy and sharp image edges, and enhance such pixels differently than other pixels, so that noise around the detected pixels is essentially not boosted. A detection process is conducted on a pixel basis, wherein each p... | 09/25/2007 |
| 7271851 | Adaptive color transient improvement A superior Color Transient Improvement technique is adaptive to the local image features, so that more natural color edge transition improvement can be accomplished. A gain control function is provided that depends on the local image feature so that different region... | 09/18/2007 |
| 7269296 | Method and apparatus for shoot suppression in image detail enhancement A general shoot suppression method and system for image detail enhancement that provides good suppression in shoot areas while preserving the enhancement (with less or no suppression) in non-shoot areas. Asymmetry checker checks the luminance variation of pixels aro... | 09/11/2007 |
| 7263229 | Method and apparatus for detecting the location and luminance transition range of slant image edges A system that detects the location as well as the luminance transition range of slant image edge in a digital image. The variance value of the pixels inside a rectangular image window centered with a current pixel is checked to determine if the current pixel is in a... | 08/28/2007 |
| 7236190 | Digital image processing using white balance and gamma correction A method and system for digital cameras provides improved automatic exposure control, improved automatic white balance, improved color interpolation, improved automatic gamma correction, and improved progressive edge enhancement. These improvements are preferably im... | 06/26/2007 |
| 7176983 | Adaptive coring for video peaking A processor for enhancing an input luminance signal including: a circuit for calculating a chroma edge value associated with the input luminance signal; a circuit for measuring a luminance gradient associated with the input luminance signal; a peaking filter for pro... | 02/13/2007 |
| 7161636 | Vertical sharpness adjustment device and TV receiver therewith A vertical sharpness adjustment device with which a viewer of a TV receiver can choose a degree of vertical sharpness adjustment to enhance a contour of a picture in vertical direction is offered. The vertical sharpness adjustment device includes a terminal to which... | 01/09/2007 |
| 7161635 | Video signal processing A method of de-interlacing a video signal by conducting three linear filtering operations on the input to produce three filtered signals, each linear filtering operation comprising the taking of a weighted sum of pixels; and multiplying together the three filtered s... | 01/09/2007 |
| 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 |
| 7136114 | Television receiver with dynamically adjustable filtering A television receiver includes a tuner stage, a selective filter stage connected to the tuner stage, and a intermediate-frequency stage connected to the selective filter stage. A field-strength-detection stage is also provided, which generates a field strength signa... | 11/14/2006 |
| 7119852 | Apparatus for processing signals The invention relates to an apparatus for processing signals, comprising parameter control means for controlling parameters of said signals in response to manual adjustments by the user as well as automatically generated adjustments based on current ambient factors ... | 10/10/2006 |
| 7110044 | Image detail enhancement system A detail enhancement system uses a detail filter bank including multiple detail filters covering different frequency ranges. An input video signal representing a digital image is processed in the detail filter, wherein detail signals are extracted by the detail filt... | 09/19/2006 |
| 7106386 | Device and method for improving picture quality A picture quality improvement device has two-dimensional low-pass filter that takes as input a luminance signal YIN that is obtained from a video signal and that extracts low-pass components for a vertical direction and a horizontal direction of the input luminance ... | 09/12/2006 |
| 7098964 | Apparatus and method for slope-enhancement of signal transitions in television pictures A time-discrete picture signal is formed from an analog picture signal, such as a luminance signal or a chrominance signal. Corresponding to the time-discrete picture signal, a time-discrete filter signal is formed, specifically a so-called “peaking signal,” whi... | 08/29/2006 |
| 7072511 | Methodology for color correction with noise regulation A method comprising determining an optimal color correction matrix accounting for both total noise variance and color reproduction error for a captured image; and correcting the colors of said captured image using said optimal color correction matrix. ... | 07/04/2006 |
| 7047305 | Personal broadcasting system for audio and video data using a wide area network A system for transferring real time video information from a source device to one of a plurality of output devices includes an image capturing device for acquiring video information, the image capturing device comprising a processor, a graphics module coupled to the... | 05/16/2006 |
| 7042519 | Control apparatus and method for preventing repeated signal processing in signal processing system A control apparatus and method for processing a signal, and more particularly, a control apparatus and method for preventing a signal from being processed repeatedly by transmitting and receiving information related to a signal processing in a composite signal proce... | 05/09/2006 |
| 7002594 | Image processing apparatus and image display apparatus using same An image processing apparatus of the present invention comprising (a) a first signal processing circuit for applying gamma correction to an n-bit (n: a natural number) digital signal inputted as a video signal and for converting the n-bit digital signal into an m-bi... | 02/21/2006 |
| 7002636 | Video signal contour corrector A gray scale correction unit intended to provide a gray scale correction unit for preventing aliasing-like noise generation and gray-scale degradation of a gradation portion adaptively controls a correction value in accordance with the slope of a video signal, detec... | 02/21/2006 |
| 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 there is provided a pre-shoot filter (1) for receiving an input ... | 01/17/2006 |
| 6972805 | Display of a video signal by means of a line scan An apparatus displays a video signal (VID) by means of a scan (SCAN). The apparatus may be, for example, a television set. The apparatus comprises a device (SCAVEM) for modulating the scanning rate (Vscan) as a function of the derivative (DLUM) of a luminance signal... | 12/06/2005 |
| 6968154 | Avoidance of interference between items of electrical apparatus The invention relates to the simultaneous operation of items of electrical apparatus, such as but not exclusively, a broadcast data receiver and a DECT telephone system. A problem with this type of apparatus is that the operating frequencies of the same can overlap ... | 11/22/2005 |
| 6968093 | Pixel processing system for image scanning applications A linear pixel-array processing systems uses a combination of digital and analog signal processing techniques to calibrate the gain and offset of each pixel in the analog domain. A plurality of fixed gain and offset values are applied in the analog domain to adjust ... | 11/22/2005 |
| 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 |
| 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 |
