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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Zhu; Ge
Address:
Shanghai, CN
No. of patents:
17
Patents:












Patent Number Title Of Patent Date Issued
8144254 Contour enhancement unit and method to enhance the contours of an image March 27, 2012
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 unit, a color transient improvement unit, and a color saturation control unit to enhance bo
8018533 Independent chrominance control method and system for images September 13, 2011
A method and system for adjusting selected colors of an image is presented. A chrominance adjustment system in accordance with one embodiment of the present invention, determines whether the color of the current pixel is near a selected color. When the color of the current pixel is n
7957611 Image scaler with controllable sharpness June 7, 2011
A method and system for scaling an original image into a scaled image is disclosed. Rather than using the corresponding position in the original image to generate the pixels values of a current pixel in the scaled image, image scalers in accordance with the present invention, calculate
7808559 System and method for accumulative stillness analysis of video signals October 5, 2010
A method and system for accumulating stillness characteristics is presented. The method and system generates field stillness characteristics for a current pixel of a current field. The field stillness characteristic is accumulated with an accumulated stillness characteristic that cor
7804544 Still pixel detection using multiple windows and thresholds September 28, 2010
A method and system for performing still pixel detection is presented. In accordance with the present invention, still pixel detection can use multiple thresholds and multiple windows of pixels. In a particular embodiment of the present invention, a still pixel detection test is perf
7720301 Structure characterization of images May 18, 2010
A method and system for characterizing structures in an image are presented. The method and system generates a structure checksum value based on a plurality of pixels in the image. The structure checksum is used as an index of a look-up table containing structure characteristics corr
7701514 Recursive noise reduction with still pixel detection April 20, 2010
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. Furthermore, the sy
7697075 Color-crossing error suppression system and method for decoded composite video signals April 13, 2010
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 at a pixel location t
7593066 Chrominance control unit and method for video images September 22, 2009
A color saturation control unit and method for increasing the color saturation of an image is presented. A scaled saturation enhancement factor calculation unit generates a scaled saturation enhancement factor using a base saturation enhancement factor. A multiplier generates a satur
7561209 Image enhancement unit and method for image quality improvement of a video stream July 14, 2009
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 unit, a color transient improvement unit, and a color saturation control unit to enhance bo
7554610 Color-crossing error detection system and method for decoded composite video signals June 30, 2009
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 corresponding pix
7532255 Color transient improvement unit and method to reduce blurring at color transients in video imag May 12, 2009
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 various transient characterization values for a color transient detection window surrounding
7505083 Directional interpolative smoother March 17, 2009
A method and system for smoothing a frame to remove jagged edges are presented. The method and system generates a smoothing filter with consolidated pixels. Edges within the smoothing filter are analyzed to select an edge direction used for smoothing. A smoothed pixel is generated ba
7417686 Conversion of interlaced video streams into progressive video streams August 26, 2008
A method and system for deinterlacing an interlaced video stream is presented. The method and system determines whether an interlaced video stream is a normal mode video stream or a converted mode video stream. Converted mode video streams, which are interlaced video streams created
7176982 Recursive noise reduction with still pixel detection February 13, 2007
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. Furthermore, the sy
7176977 Frame rate conversion of interlaced and progressive video streams February 13, 2007
A method and system for deinterlacing an interlaced video stream is presented. The method and system determines whether an interlaced video stream is a normal mode video stream or a special mode video stream. Special mode video streams, which interlaced video streams created from a p
7142223 Mixed 2D and 3D de-interlacer November 28, 2006
A de-interlacing methodology generates frames from interlaced video signals by incorporating data from multiple fields into an interpolation-based de-interlacing process. Pixels directly above and below a blank pixel location and pixels immediately before and after the blank pixel lo










 
 
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