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| Number | Title | Issue Date |
| 7777816 | Apparatus and method for image adjustment An apparatus for image adjustment and an associated method are disclosed. The apparatus can determine an adjusted value of a pixel in an image frame by comparing the pixel and a correspondingly located pixel in a previous image frame. When there is much image variat... | 08/17/2010 |
| 7724307 | Method and system for noise reduction in digital video Aspects of noise reduction in digital video may comprise monitoring at least one of memory usage and memory bandwidth usage of memory utilized to process video data. The aspect may further comprise adaptively adjusting filtering of the video data according to the mo... | 05/25/2010 |
| 7663701 | Systems, methods, and apparatus for noise reduction Systems, methods, and apparatus for noise reduction include noise estimation from blanking interval information. Such systems, methods, and apparatus may also include temporal filtering, scene change detection, inverse telecine, and/or DC preservation. ... | 02/16/2010 |
| 7394856 | Adaptive video prefilter A method for adaptively filtering a video signal prior to encoding is provided. The method initiates with calculating a local gradient indicative of a region type. Then, a weight factor is determined based upon the local gradient. Next, the weight factor is applied ... | 07/01/2008 |
| 7375762 | Frame interpolation method and apparatus, and image display system An image interpolation method comprises searching a motion vector from different pairs of blocks on a first and a second reference image symmetrically, extracting a first and a second image block from the first and the second reference image, respectively, the first... | 05/20/2008 |
| 7366242 | Median filter combinations for video noise reduction A technique for improving image compression by pre-processing the image frames. In particular, methods for de-interlacing and noise reduction using combinations of median filters, applied both spatially and temporally, with and without motion analysis, are described... | 04/29/2008 |
| 7365801 | Apparatus and method for processing signal A motion vector detection portion detects a motion vector based on an input image signal and an image signal of previous field that is one field before the input signal. A motion compensation portion performs motion compensation on the image signal of previous field... | 04/29/2008 |
| 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 edge in the picture proximate a location interlaced with a field of the... | 04/22/2008 |
| 7356439 | Motion detection apparatus and method An image motion detection apparatus and method detecting a motion in a moving image by sequentially being input with a plurality of fields that are temporally successive and detecting motion information values representing presence and absence of motion for each pix... | 04/08/2008 |
| 7352916 | Method of coding artifacts reduction A method to reduce coding artifacts within a discrete decoded picture includes a spatial and/or temporal filtering with respective filter characteristics dependent on an image quality value (Q). Preferably, the spatial filtering includes a deblocking filtering, wher... | 04/01/2008 |
| 7349033 | Systems and methods for correcting color phase error in video systems Systems and methods are provided for correcting color phase error in a video decoder system. A demodulator system demodulates the composite input signal and the at least one delayed signal to produce sets of baseband chroma components based on a phase correction val... | 03/25/2008 |
| 7336320 | Method and apparatus for temporally recursive chrominance signal noise reduction A temporally recursive chrominance signal noise reduction can be achieved by subtracting a delayed version of the chrominance output signal from the chrominance input signal and by multiplying the related difference signal by a variable share factor and adding the r... | 02/26/2008 |
| 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 video frames in different temporal directions. A motion detector computes ... | 02/12/2008 |
| 7324078 | Display apparatus and control method thereof offsetting a noise section contained in video signal A display apparatus including an offset value setting input part to specify an offset value for a DE signal determining an effective area of a video signal; and a DE signal generator to generate the DE signal depending on the offset value. With this configuration, t... | 01/29/2008 |
| 7321400 | Method and apparatus for adaptive image data interpolation A method for determining a value for a missing target pixel in an image frame includes generating a classification index from a plurality of classification pixels in a classification window associated with the missing target pixel where the classification index indi... | 01/22/2008 |
| 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 |
| 7280160 | Apparatus for and method of adaptively processing video signals based on a noise state An apparatus for and a method of adaptively processing video signals based on noise states. The method includes, a memory device that stores a look-up table in which optimal filter tap coefficients corresponding to a number of noise levels are registered; a noise me... | 10/09/2007 |
| 7280161 | Noise reduction circuit and method A noise reduction circuit and method effectively reduce noise with a simple structure regardless of the partial content of an image while suppressing an increase in the capacity of the image memory used and process delays. The present invention forms noise-reduced d... | 10/09/2007 |
| 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 |
| 7268835 | Device and method for noise reduction of a video signal The disclosure relates to a device and to a method for noise reduction of a video signal. The device is comprised of the following components. A motion-compensated interpolation means, a recursive filter intended to receive the output of the recursive filter motion-... | 09/11/2007 |
| 7266150 | Interpolation of video compression frames A method, system, and computer programs for improving the image quality of one or more predicted frames in a video image compression system, where each frame comprises a plurality of pixels. A picture region or macroblock of certain types of frames can be encoded by... | 09/04/2007 |
| 7245786 | Filtering artifact from fMRI data using the stockwell transform The present invention relates to a method for filtering time-varying MR signal data prior to image reconstruction. A one-dimensional FT is applied to the time-varying MR signal data along each frequency-encode line of k space. The phase p of each complex pair (R, I)... | 07/17/2007 |
| 7242988 | Adaptive pattern recognition based controller apparatus and method and human-factored interface therefore The need for a more-readily usable interface for programmable devices is widely recognized. The present invention relates to programmable sequencing devices, or, more particularly, the remote controls for consumer electronic devices. The present invention provides a... | 07/10/2007 |
| 7224733 | Interpolation filtering method for accurate sub-pixel motion assessment To generate an improved image signal when estimating motion, a motion vector is first determined with pel accuracy, and a two-step interpolation filtering is subsequently carried out with sub-pel accuracy. The interpolation coefficients are selected with a view to r... | 05/29/2007 |
| 7212232 | Reproduction apparatus and computer program for controlling reproduction apparatus A reproduction apparatus includes: an enlarging processing unit for enlarging a desired area of an image displayed on a screen; and a control unit for changing operation characteristics of the enlarging processing means in accordance with whether the image is a movi... | 05/01/2007 |
| 7209632 | Digital broadcast recording/viewing support apparatus A receive part demodulates and decodes a digital modulated signal obtained by receiving a digital broadcast to generate a transport stream, and extracts data-broadcast data transmitted over a data channel. An electronic program list generator generates, from program... | 04/24/2007 |
| 7203234 | Method of directional filtering for post-processing compressed video A method of post-processing decompressed images includes identification of the direction of an image edge in a pixel block of the image and filtering applied along the boundary of the block in a direction substantially parallel to the detected image edge. Pixels are... | 04/10/2007 |
| 7199838 | Motion adaptive noise reduction apparatus and method for video signals A video noise reduction system for a set of video frames that computes a first motion signal using a current frame and multiple consecutive previous frames, computes a second motion signal using the current frame and the processed preceding frame; computes the multi... | 04/03/2007 |
| 7194135 | Image recording device An image recording device that compresses and records image data is provided wherein noise reduction is recursively performed on the non-compressed image signals and the feedback gain or the filtering characteristic of a recursive noise reduction circuit are control... | 03/20/2007 |
| 7190841 | Image noise reduction circuit An image noise reduction circuit includes an image correction portion which is responsive to a timing pulse signal to reduce a noise in an input image signal based on a difference data and to generate a corresponding output image signal, a difference detecting porti... | 03/13/2007 |
| 7187417 | Video signal processing apparatus that performs frame rate conversion of a video signal A video signal processing apparatus which performs a frame-rate conversion of a progressive line-scan video signal based on a film source of M film frames per second (wherein M is a natural number) into a video signal in which a same film frame is repeated N times f... | 03/06/2007 |
| 7187405 | Automatic flicker frequency detection device and method An image device, such as a digital camera, detects specific repeating patterns of signal variations by processing columnar information from the device's two-dimensional sensor array used to generate images. In one embodiment, the columnar information is derived from... | 03/06/2007 |
| 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 the field so that processing of later fields uses the modified pixels. F... | 02/13/2007 |
| 7174051 | Information processing apparatus for adaptive processing circuits A data processing apparatus is capable of executing a plurality of signal processes. The data processing apparatus switches processes of a pre-processing portion, a data processing portion, and a post-processing portion with a control signal supplied from a function... | 02/06/2007 |
| 7167186 | Systems and methods for motion adaptive filtering The systems detect movement of text or areas of high spatial frequency in one frame to another frame. If such movement is detected and meets a certain level or threshold, the subpixel rendering processing of such text or areas of high spatial frequency can be change... | 01/23/2007 |
| 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 |
| 7145607 | Spatio-temporal video noise reduction system A method and system for digital video noise reduction which includes a picture analyser (103) for analysing pictures in a video sequence to determine the amount of moving regions therein, a noise level detector (102) for estimating the noise level (N) ... | 12/05/2006 |
| 7143351 | Image display device and displaying method An image display device for playing-back and displaying binary image data after decoding the above by the frame, comprises an image judging unit for judging the current frame to be a moving image or a static image, based on the time interval between the frames which... | 11/28/2006 |
| 7130481 | Apparatus for attenuating image-noise adaptively and method thereof A method of adaptively attenuating image-noise according to a degree of motion of an image signal and an apparatus therefor are provided. An input image signal is filtered in a spatial area to attenuate noise of the input image signal. The input image signal is filt... | 10/31/2006 |
| 7119774 | Reducing sparkle artifacts with low brightness filtering A video signal is decomposed into a higher brightness level signal and a lower brightness level signal. The threshold between higher and lower brightness levels is adjustable and related to the transition between lower and higher gain portions of the gamma table for... | 10/10/2006 |
