Patents by Inventor Arnold P. Skoog
Arnold P. Skoog has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7970230Abstract: A method of reducing ringing artifacts in image data that has been filtered with a high frequency emphasis filter. For each filtered data value, a local variance is calculated from data values at neighboring filter taps. This variance is compared to a threshold, and if the threshold is exceeded, the filtered data value is limited between local minimum and maximum values. A method of reducing noise, also using the local variance, is also described.Type: GrantFiled: August 1, 2007Date of Patent: June 28, 2011Assignee: Texas Instruments IncorporatedInventors: Jeffrey Kempf, Arnold P. Skoog, Roger M. Ikeda
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Publication number: 20100246992Abstract: A content-dependent scan rate converter with adaptive noise reduction that provides a highly integrated, implementation efficient de-interlacer. By identifying and using redundant information from the image (motion values and edge directions), this scan rate converter is able to perform the tasks of film-mode detection, motion-adaptive scan rate conversion, and content-dependent video noise reduction. Adaptive video noise reduction is incorporated in the process where temporal noise reduction is performed on the still parts of the image, thus preserving high detail spatial information, and data-adaptive spatial noise reduction is performed on the moving parts of the image. A low-pass filter is used in flat fields to smooth out Gaussian noise and a direction-dependent median filter is used in the presence of impulsive noise or an edge. Therefore, the selected spatial filter is optimized for the particular pixel that is being processed to maintain crisp edges.Type: ApplicationFiled: June 4, 2010Publication date: September 30, 2010Applicant: TEXAS INSTRUMENTS INCORPORATEDInventors: Jeffrey Kempf, Arnold P. Skoog, Clifford D. Fairbanks
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Patent number: 7738038Abstract: A content-dependent scan rate converter with adaptive noise reduction that provides a highly integrated, implementation efficient de-interlacer. By identifying and using redundant information from the image (motion values and edge directions), this scan rate converter is able to perform the tasks of film-mode detection, motion-adaptive scan rate conversion, and content-dependent video noise reduction. Adaptive video noise reduction is incorporated in the process where temporal noise reduction is performed on the still parts of the image, thus preserving high detail spatial information, and data-adaptive spatial noise reduction is performed on the moving parts of the image. A low-pass filter is used in flat fields to smooth out Gaussian noise and a direction-dependent median filter is used in the presence of impulsive noise or an edge. Therefore, the selected spatial filter is optimized for the particular pixel that is being processed to maintain crisp edges.Type: GrantFiled: May 20, 2008Date of Patent: June 15, 2010Assignee: Texas Instruments IncorporatedInventors: Jeffrey Kempf, Arnold P. Skoog, Clifford D. Fairbanks
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Publication number: 20080218630Abstract: A content-dependent scan rate converter with adaptive noise reduction that provides a highly integrated, implementation efficient de-interlacer. By identifying and using redundant information from the image (motion values and edge directions), this scan rate converter is able to perform the tasks of film-mode detection, motion-adaptive scan rate conversion, and content-dependent video noise reduction. Adaptive video noise reduction is incorporated in the process where temporal noise reduction is performed on the still parts of the image, thus preserving high detail spatial information, and data-adaptive spatial noise reduction is performed on the moving parts of the image. A low-pass filter is used in flat fields to smooth out Gaussian noise and a direction-dependent median filter is used in the presence of impulsive noise or an edge. Therefore, the selected spatial filter is optimized for the particular pixel that is being processed to maintain crisp edges.Type: ApplicationFiled: May 20, 2008Publication date: September 11, 2008Applicant: Texas Instruments IncorporatedInventors: Jeffrey Kempf, Arnold P. Skoog, Clifford D. Fairbanks
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Publication number: 20080158259Abstract: Color or grayscale images having optical elements induced geometric distortions can be corrected on individual color image component by creating correction image component having the complementary distortion; and applying the correction image component to the corresponding distorted color image component.Type: ApplicationFiled: December 28, 2006Publication date: July 3, 2008Applicant: Texas Instruments IncorporatedInventors: Jeffrey Matthew Kempf, Rajeev Ramanath, David Foster Lieb, Henry W. Neal, Arnold P. Skoog
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Patent number: 7375760Abstract: A content-dependent scan rate converter with adaptive noise reduction that provides a highly integrated, implementation efficient de-interlacer. By identifying and using redundant information from the image (motion values and edge directions), this scan rate converter is able to perform the tasks of film-mode detection, motion-adaptive scan rate conversion, and content-dependent video noise reduction. Adaptive video noise reduction is incorporated in the process where temporal noise reduction is performed on the still parts of the image, thus preserving high detail spatial information, and data-adaptive spatial noise reduction is performed on the moving parts of the image. A low-pass filter is used in flat fields to smooth out Gaussian noise and a direction-dependent median filter is used in the presence of impulsive noise or an edge. Therefore, the selected spatial filter is optimized for the particular pixel that is being processed to maintain crisp edges.Type: GrantFiled: December 31, 2002Date of Patent: May 20, 2008Assignee: Texas Instruments IncorporatedInventors: Jeffrey Kempf, Arnold P. Skoog, Clifford D. Fairbanks
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Patent number: 7254277Abstract: A method of reducing ringing artifacts in image data that has been filtered with a high frequency emphasis filter. For each filtered data value, a local variance is calculated from data values at neighboring filter taps. This variance is compared to a threshold, and if the threshold is exceeded, the filtered data value is limited between local minimum and maximum values. A method of reducing noise, also using the local variance, is also described.Type: GrantFiled: December 30, 2002Date of Patent: August 7, 2007Assignee: Texas Instruments IncorporatedInventors: Jeffrey Kempf, Arnold P. Skoog, Roger M. Ikeda
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Publication number: 20040125113Abstract: A method of reducing ringing artifacts in image data that has been filtered with a high frequency emphasis filter. For each filtered data value, a local variance is calculated from data values at neighboring filter taps. This variance is compared to a threshold, and if the threshold is exceeded, the filtered data value is limited between local minimum and maximum values. A method of reducing noise, also using the local variance, is also described.Type: ApplicationFiled: December 30, 2002Publication date: July 1, 2004Applicant: Texas Instruments IncorporatedInventors: Jeffrey Kempf, Arnold P. Skoog, Roger M. Ikeda
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Publication number: 20030156301Abstract: A content-dependent scan rate converter with adaptive noise reduction that provides a highly integrated, implementation efficient de-interlacer. By identifying and using redundant information from the image (motion values and edge directions), this scan rate converter is able to perform the tasks of film-mode detection, motion-adaptive scan rate conversion, and content-dependent video noise reduction. Adaptive video noise reduction is incorporated in the process where temporal noise reduction is performed on the still parts of the image, thus preserving high detail spatial information, and data-adaptive spatial noise reduction is performed on the moving parts of the image. A low-pass filter is used in flat fields to smooth out Gaussian noise and a direction-dependent median filter is used in the presence of impulsive noise or an edge. Therefore, the selected spatial filter is optimized for the particular pixel that is being processed to maintain crisp edges.Type: ApplicationFiled: December 31, 2002Publication date: August 21, 2003Inventors: Jeffrey Kempf, Arnold P. Skoog, Clifford D. Fairbanks