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7616240 |
Image processing method, image processing program, image processing apparatus, and digital still camera using the image processing apparatus
Electronic data output from CCD is separated into a brightness component Y and color difference components Cb and Cr and an edge is extracted for each of the components. The edge amounts are...
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7586546 |
Video signal processing circuit having a bypass mode and display apparatus comprising the same
A display apparatus having a display. The display apparatus includes a video signal processor having a processor to process an input video signal and a picture quality improving part to improve...
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7570306 |
Pre-compensation of high frequency component in a video scaler
A video scaling process system, wherein the high frequency components of the input video sequence are compensated for, prior to video scaling. The video scaling system includes a pre-compensator...
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7561209 |
Image enhancement unit and method for image quality improvement of a video stream
An image enhancement unit and method for enhancing the image quality of a video stream is presented. The image enhancement unit combines a contour enhancement unit, a luminance contrast stretching...
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7558435 |
Signal processing apparatus, method of processing a signal, recording medium, and program
In each of stages of a nonlinear filter, a successively determined target signal and plural adjacent signals are weighted-averaged with plural sets of different coefficients to calculate plural...
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7538822 |
Apparatus and method for filtering digital image signal
An apparatus and method of filtering a digital image signal. The apparatus includes: a noise reduction filter which selectively outputs one of results obtained by temporally and spatially filtering...
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7532255 |
Color transient improvement unit and method to reduce blurring at color transients in video images
A color transient improvement unit and method for improving color transients to remove blurring along the edges of color transitions is presented. A transient characterization unit calculates...
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7522220 |
Dual-channel adaptive 2D noise reduction for video signals
A noise reduction system that not only preserves details in images but also provides essentially clean, smooth, and natural looking homogeneous regions in images. The noise reduction system...
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7518660 |
Picture quality improvement device and picture quality improvement method
A field delay circuit aligns the phases of two field signals. An average value calculation circuit generates an average value signal of the two field signals. This average value signal can be...
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7515210 |
Technique for determining the slope of a field pixel
A technique for determining the slope of a field pixel is described. According to the technique, one or more sets of diagonal field pixels are downscaled (or downsampled) before they are provided...
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7511768 |
Dynamic filter to limit ringing
A media processing system for limiting ringing in a filter output. A detection filter receives a media signal and generates a detection signal. The detection signal has a constant value over...
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7505055 |
Method and apparatus for auto-generation of horizontal synchronization of an analog signal to a digital display
A method, apparatus, and system for determining a horizontal resolution and a phase of an analog video signal arranged to display a number of scan lines each formed of a number of pixels is...
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7489349 |
Image processing apparatus having a digital image processing section including enhancement of edges in an image
An image processing apparatus includes: an image pickup section for converting an object light into image signals of Bayer RGB array; a color information detecting section for obtaining color...
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7483081 |
Edge compensated feature detector and method thereof
An edge compensated feature detector includes a local difference unit receiving an incoming video signal and calculating a local difference value according to a component difference in a local area...
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7450182 |
Image display apparatus and picture quality correction
An image display apparatus is provided for receiving a digital image signal and displaying it so that high-quality images can be displayed with the noise reduced not to be conspicuous and with the...
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7436413 |
Image data processing apparatus and image display apparatus
The invention provides an image data processing apparatus including a memory for storing plural values indicating plural brightnesses when a predetermined display element is driven based on...
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7432986 |
Method and apparatus for masking of video artifacts and/or insertion of film grain in a video decoder
A video decoder comprising (i) a post-processing filter block, (ii) a comfort noise addition block and (iii) a video value/range adjustment block, where the comfort noise addition block is...
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7430019 |
Apparatus to improve image sharpness adaptively according to multi-video formats and method thereof
An apparatus to improve an image sharpness and a method thereof which can improve the image sharpness of an image through an adaptive operation of the apparatus according to resolutions of...
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7420623 |
Image-signal processing apparatus for enhancing specific frequency component of image signal and correcting the edge of reproduced image
The structure of an image-signal processing apparatus for performing gamma correction and edge enhancement of a image signal is simplified. An edge-correction-gain generation circuit generates a...
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7414671 |
Systems and methods for display object edge detection and pixel data interpolation in video processing systems
A method interpolating pixel values includes calculating a difference value between pixel values corresponding to a first display pixel on a first display line and a second display pixel on a...
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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....
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7391477 |
Apparatus and method for processing video signal
An amplitude discrimination circuit separates a received video signal into a signal component with a minute amplitude level and other signal component with a high amplitude level. A contour...
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7391476 |
Method and device for interpolating a pixel of an interline of a field
A method and device for interpolating a pixel of an interline of a first field in a sequence of interlaced fields includes selecting at least one first pixel and one second pixel from scan lines of...
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7382929 |
Spatial scan replication circuit
In an image replication circuit, the improvement of replicating a given element at a certain location with the most similar of surrounding sets of image elements.
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7382414 |
Video signal processing apparatus, for controlling contrast compensation and edge compensation in relation to each other in depedence on luminance of an image, and television receiver including the same
A video signal processing apparatus includes a characteristic detection circuit for detecting luminance distribution corresponding to one frame of a video signal, a contrast compensation circuit...
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7366347 |
Edge detecting method
There is provided an edge detecting method, which is capable of preventing a noise influence caused by imaging device and a color interpolation. The edge detecting method includes the steps of:...
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7362376 |
Method and apparatus for video deinterlacing and format conversion
A method for deinterlacing a picture is disclosed. The method generally includes the steps of (A) generating a plurality of primary scores by searching along a plurality of primary angles for an...
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7352397 |
Circuit and method for contour enhancement
A semiconductor integrated circuit includes a differential calculating unit which obtains a differential between a value of a pixel of interest and values of surrounding pixels contained in an...
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7345711 |
Video signal improving circuit
A video signal improving circuit comprises an input section which receives a video signal; a delay circuit which delays the video signal to generate a plurality of delayed video signals which have...
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7336819 |
Detection of sky in digital color images
A method of detecting sky in a digital color image having pixels is disclosed. The method includes identifying pixels from the digital color image representing an initial sky region; developing a...
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7330599 |
Contour compensation circuit, and a method and program for contour compensation, and an image signal display device
A contour compensation circuit that generates a contour-compensated signal by which a signal level of a contour of the object is emphasized, from an image signal obtained by an image pickup of an...
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7321401 |
Contour emphasizing circuit
A contour emphasizing circuit which comprises a contour pick-up unit 10 for picking up a contour component HE from an input luminance signal Y, a level judging unit 15 for judging the luminance...
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7319496 |
Signal processing apparatus, image display apparatus and signal processing method
There is provided a signal processing apparatus comprises an edge amount detection portion for generating a data string of luminance differences of a pair of pixels adjacent to each other or...
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7302112 |
Contour-emphasizing circuit
An edge enhancement circuit uses bandpass filters to separate an original video signal into low-, middle- and high-frequency band edge components which will be supplied to waveform shaping...
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7283680 |
Method for image processing by unsharp masking
A method for adjusting an image signal by a processor includes providing a first low pass filter and a second low pass filter, generating an energy ratio of a band-pass image signal and the image...
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7280154 |
Interpolative interleaving of video images
A video processing system is presented that interleaves video data. In accordance with some embodiments of the present invention, data from a first field is placed in a frame and is augmented with...
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7250984 |
VDT stress mitigating device and method, VDT stress risk quantifying device and method, and recording medium
The aim of the present invention is to provide a VDT stress mitigating device and method capable of mitigating VDT stress caused by a regular spatial pattern and VDT stress caused by flicker...
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7224405 |
Horizontal contour correction circuit
A horizontal contour correction circuit for correcting a horizontal contour of a video signal to output as a corrected signal, comprising: a delay circuit for outputting video signal values of a...
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7224402 |
Apparatus for processing image signal and method thereof
An image signal processing apparatus and method is capable of variably performing format conversion and image quality improvement according to a kind of an inputted image signal. A detecting...
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7221408 |
Adaptive contrast enhancement method for video signals based on time-varying nonlinear transforms
An adaptive contrast enhancement (ACE) method and apparatus provide a natural enhancement in accordance with the time-varying characteristics of a video sequence. Characteristics of a time varying...
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7221404 |
Video signal processing method and device
To enable a satisfactory suppression of overemphasized component after converting the number of scanning lines of video signal, when the video signal is converted in the number of scanning lines...
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7218793 |
Reducing differential resolution of separations
Certain disclosed implementations use digital image processing to reduce the differential resolution among separations or images in film frames, such as, for example, red flare. A location in the...
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7190409 |
Method for displaying an image having a maximal brightness
An electro-optical device and a method for displaying an image are disclosed. A clear image with a clear profile can be displayed therein by processing input image data, for example input image...
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7184099 |
Controllable signal baseline and frequency emphasis circuit
A circuit for selectively controlling signal baseline and frequency emphasis. An amplifier with selectively controllable feedback circuitry allows higher frequency components of a signal to be...
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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....
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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...
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7161633 |
Apparatus and method for providing a usefulness metric based on coding information for video enhancement
An apparatus and method for enhancing the quality of a digital video signal uses coding information for use in connection with spatial domain sharpness enhancement algorithms used in multimedia...
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7154561 |
Sharpness improvement apparatus for video signals
Disclosed is a sharpness improvement apparatus of an image signal which improves a sharpness of an analogue image signal so as to display a clear image. A display device which displays an inputted...
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7139036 |
Method and apparatus for image detail enhancement using filter bank
An image detail enhancement method and apparatus that is suitable for different types of digital images, regardless of their signal frequency range or noise level. The detail enhancement apparatus...
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7119854 |
Method for deriving an objective sharpness metric
A method is provided for deriving an objective sharpness metric for objectively determining the level of image sharpness of many and unspecific images having different degrees of sharpness. The...
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