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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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7554603 |
Video-signal-processing device and video-signal-transfer method
A video-signal-processing device configured to externally transmit at least one brightness signal and at least one color-difference signal is provided. A single frame of the color-difference signal...
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7551233 |
Image processing circuit having capability of reducing distorted/falsified phenomena of color component of decoded video data, and image processing method thereof
An image processing circuit for processing a video signal includes: a separator for separating the video signal into a brightness signal and a color signal; a first filter coupled to the separator...
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7474355 |
Chroma upsampling method and apparatus therefor
A unique method for chroma vertical upsampling used, for example, for conversion of the “4:2:0” format chroma information used in many applications of digital video, to the “4:2:2” or...
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7447352 |
Method for abstracting histogram of HSV color
A method Abstract a histogram of HSV (Hue-Saturation-Value) colors from a color signal. The method includes receiving the color signal having a luminance component (Y) and chrominance components...
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7408992 |
Detection and repair of MPEG-2 chroma upconversion artifacts
A method for removing MPEG-2 chroma upconversion artifacts in a video stream includes detecting a presence of artifacts in an incorrectly upsampled MPEG-2 video stream and removing the presence of...
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7289663 |
Producing an extended color gamut luminance-chrominance digital image from a captured image
A method for producing an extended color gamut luminance-chrominance digital image from a captured digital image includes determining an estimate of the colors of the captured digital image of an...
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7206025 |
Device and method for converting format in digital TV receiver
Device and method for converting a format of a video signal in a digital TV receiver is provided. Format conversion can be carried out at one chip of a format converting device, inclusive of...
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7154557 |
Joint pre-/post-processing approach for chrominance mis-alignment
This invention corrects chrominance misalignment that occurs during chrominance down-sampling and up-sampling. The invention extracts a binary index from the corresponding luminance signal. The...
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7142251 |
Video input processor in multi-format video compression system
A video input processor is provided to process different input video format, including RGB, RGB Bayer, YUV 4:2:2 interlaced and progressive video data. The video input processor also uses an...
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7129988 |
Adaptive median filters for de-interlacing
An adaptive intra-field algorithm to de-interlace video data uses two line memories to implement a median filter that can use multiple data points on adjacent lines of display. In a median-mode,...
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7006147 |
Method and system for MPEG chroma de-interlacing
A method ( 300 ) of converting interlaced Moving Picture Experts Group (MPEG) video signals to progressive video signals can include receiving an interlaced video signal representing a luma...
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6903371 |
Thin film transistor and display using the same
An amorphous silicon film is laser irradiated a plural number of times to make the film composed of a plurality of crystal grains while suppressing the formation of protrusions at the boundaries of...
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6724430 |
Sampling frequency converter, sampling frequency conversion method, video signal processor, and video signal processing method
A DD converter circuit 109 for interpolating a digital video signal which is locked to a 14.3-MHz burst clock to convert the sampling data so as to be locked to a 13.5-NHz free-run clock, and a...
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6717987 |
Video compression method and apparatus employing error generation and error compression
A method and apparatus compresses digital information based on an interpolation function such as used by a graphic engine scaler. Luma error information is determined based on the interpolation...
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6621525 |
Double tapered roller of scroll thrust bearing
In double tapered rollers of a thrust scroll bearing, a structure free from generation of edge load at both ends of a section straight line on conical or tapered surfaces, and appropriate in...
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6591010 |
System and method for image detection and qualification
A method and a system employing the method is disclosed for detecting and qualifying a portion of a digital image stored in a computer-readable memory with respect to a reference digital image. The...
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6539109 |
Imaging system
An imaging system includes an imager outputting an analog green signal, an analog blue signal, and an analog red signal in a predetermined progressive-scanning format. The analog green, blue, and...
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6529244 |
Digital video decode system with OSD processor for converting graphics data in 4:4:4 format to 4:2:2 format by mathematically combining chrominance values
An on-screen display processor for a digital video signal processing system is disclosed. The OSD processor includes logic for converting a graphics bitmap in 4:4:4 format to graphics image words...
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6519289 |
Method and apparatus for compensation of luminance defects caused by chrominance signal processing
In analogue television systems, it is known to compensate for the receiver-end luminance defects which are caused by transmitter-end low-pass filtering of the gamma-predistorted chrominance...
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6501507 |
Multimode interpolation filter as for a TV receiver
A multimode scan converter includes a delay element ( 33 ) for delaying one horizontal line of video signal and selectively re-displaying that line. A multiplexer ( 30 ) is arranged to selectively...
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6330076 |
Image processing apparatus
An image processing apparatus has a data conversion unit which converts RGB image data of a document to luminance component and chromaticity component, an optimization process unit which converts...
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6307592 |
Apparatus for converting the format of video signals based on frequency and composition ratio
A video signal format converting apparatus is provided for doubling a horizontal/vertical frequency, and converting the composition ratio of a luminance signal and color-difference signals, by...
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6266101 |
Y/C separator
In a color signal generating circuit, color signals are generated based on an image signal of an odd field of an interlace scanning and the color signals are stored. A luminance signal generating...
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6266093 |
Color video camera method and system
A method for generating interlaced video signals representative of color images of a scene includes the following steps: deriving a progressively scanned luminance signal representative of the...
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6262773 |
System for conversion of interlaced video to progressive video using edge correlation
A system processes an image containing a first line and a second line, where the first and second lines includes a plurality of pixels, to generate an interpolated line. The system selects a first...
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6262771 |
Method and apparatus for converting picture signal, and recording and reproducing apparatus
A picture signal includes a luminance signal and a color signal. A first predetermined number of sample points of the luminance signal are located on every actual scanning line. A second...
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6259479 |
Letterbox filter apparatus and method
A method and apparatus for changing the number of scan lines in a frame of video data to produce an image represented by the video data that corresponds to a desired aspect ratio. The apparatus...
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6208382 |
Color video processing system and method
Method and apparatus are disclosed for receiving an interlaced color video signal, and processing the signal to produce a progressively scanned video signal. An embodiment of the method of the...
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6057885 |
Picture information converting apparatus and method thereof and sum-of-product calculating circuit and method thereof
An ADRC circuit 3 generates spatial classes with SD data extracted by an area extracting circuit 2. A moving class determining circuit 5 generates a moving class with SD data extracted by an area...
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5995154 |
Process for interpolating progressive frames
A process for converting interlaced frames into progressive frames comprising a change of frame frequency by interpolation and motion compensation, wherein when a motion vector associated with a...
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5973753 |
Method and circuit arrangement for separating luminance and chrominance signals of a CVBS signal
In analog color television transmission methods, the transmitted CVBS signal comprises luminance and chrominance signals which have to be separated from one another in a television receiver in...
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5861924 |
Methods and systems for processing video signal pixel data
In a video processing system (14), a method of detecting and compensating for motion of an image which includes the steps of: detecting a first pixel value, a second pixel value, and a third pixel...
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5844629 |
Digital-to-analog video encoder with novel equalization
A digital-to-analog video encoder method and apparatus having unique equalization are disclosed. The encoder converts digital video signals into one or more analog video formats using one or more...
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5838394 |
Picture storage device separates luminance signal into even number and odd number data and separates two channel color signal into former half pixels and latter half pixels
A picture storage device conveniently employed in conjunction with an electronic still camera or a video camera has an input data converting unit for separating luminance signals of input color...
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5784116 |
Method of generating high-resolution video
Disclosed is a method for generating a high-resolution, real-time, digital video signal from an analog composite video signal such as an NTSC, PAL, or SECAM signal. The analog video signal is...
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5754245 |
Conversion for non-interlaced scanning
In order to reduce the number of field memories for a converting apparatus for non-interlaced scanning three field memories 53 to 55, a Y/C separator and a motion detector are arranged on the...
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5742409 |
Apparatus for pixel insertion in optical scanners
The invention relates to pixel insertion on optical scanners. The invention increases the efficiency of video buffer in optical scanners and improves the speed of I/O device by locating the...
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5717466 |
Circuit for interpolating scan lines of a video signal and method of using same
An enhanced-video circuit for performing non-uniform interpolation of video scan lines is presented. The circuit includes a plurality of interpolation circuits, a memory for storing coefficients,...
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5650824 |
Method for MPEG-2 4:2:2 and 4:2:0 chroma format conversion
A chroma format conversion method that determines whether chroma format data to be converted is interlaced data or not. When the chroma format data is non-interlaced data the chroma format data is...
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5646694 |
Moving picture decoding apparatus having three line buffers controlled to store and provide picture data of different resolutions
A picture decoding apparatus has a memory for storing decoded picture data, three line buffers for temporarily storing picture data read from the memory, and a line buffer controller. Two of the...
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5530487 |
Video signal clamping arrangement located downstream of a multiplexer
Video components U and V are applied to an input of a multiplexer. An output signal of the multiplexer is clamped using a clamper that is common for each of the video signal components. An input of...
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5493338 |
Scan converter of television receiver and scan converting method thereof
A method and apparatus is provided for increasing scanning line numbers for TV video signal utilizing a three dimensional medial filter. The method and apparatus inhibit the picture quality from...
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5475438 |
Five field motion detector for a TV scan line doubler
A pixel interpolation system for developing progressive line scan video from two interlaced fields of video. An intrafield pixel value is determined by averaging the pixel in the line above and the...
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5337089 |
Apparatus for converting a digital video signal which corresponds to a first scan line format into a digital video signal which corresponds to a different scan
Apparatus for converting a digital video signal between two different formats, such as interlaced field and non-interlaced progressive frame, and which avoids filtering and sub-sampling of portions...
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5257103 |
Method and apparatus for deinterlacing video inputs
Disclosed is a method and apparatus for converting interlaced input video to a sequential output compatible with sequential input display devices. The video input is digitized and decoded so as to...
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5097321 |
Three dimensional adaptive decoding system and method
A decoding system (10) receives a composite digital NTSC D2 input signal or a composite analog NTSC RS-170A input signal. The decoding system (10) decodes and sample rate converts to a component...
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5046164 |
Interstitial line generator for an interlace to non-interlace scan converter
An interstitial line generator for an interlaced scan to non-interlaced scan video signal converter includes circuitry for examining a plurality of lines spatially and temporally disposed about an...
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5032899 |
Interpolation signal generating circuit for progressive scanning conversion system television receiver
A system for generating interpolation signals for a progressive scanning conversion television system. The sysetem includes a Y/C separator for separating the luminance (Y) and chrominance (C)...
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5001562 |
Scanning line converting system for displaying a high definition television system video signal on a TV receiver
A scanning line converting system comprises down-converters arranged in parallel for converting an input high definition television signal to a current television signal, and double-frequency...
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