Patents by Inventor Oliver Theis

Oliver Theis 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).

  • Patent number: 10096119
    Abstract: In order to objectively and efficiently measure, visualize and evaluate the quality of images in terms of sharpness, a method for determining a sharpness metric (S) of an image is described. The method includes performing edge detection that results in gradients for the pixels of the image, determining a value representing a contrast metric C of the image, calculating at least three different thresholds (t1,t2,t3) from the image content, and classifying the pixels according to their gradient into at least four groups defined by the thresholds. The sharpness metric (S) is calculated from relationships between the amounts of pixels in the different groups and a multiplicative factor (m) between the at least three thresholds.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: October 9, 2018
    Assignee: Thomson Licensing
    Inventors: Oliver Theis, Axel Kochale, Siegfried Schweidler
  • Publication number: 20170154434
    Abstract: In order to objectively and efficiently measure, visualize and evaluate the quality of images in terms of sharpness, a method for determining a sharpness metric (S) of an image is described. The method includes performing edge detection that results in gradients for the pixels of the image, determining a value representing a contrast metric C of the image, calculating at least three different thresholds (t1, t2,t3) from the image content, and classifying the pixels according to their gradient into at least four groups defined by the thresholds. The sharpness metric (S) is calculated from relationships between the amounts of pixels in the different groups and a multiplicative factor (m) between the at least three thresholds.
    Type: Application
    Filed: November 25, 2016
    Publication date: June 1, 2017
    Inventors: OLIVER Theis, Axel Kochale, Siegfried Schweider
  • Patent number: 9589331
    Abstract: Results of automatic detection of dirt or other non-steady defects in a sequence of digitized image frames can be unreliable. Here, a determination of a detection of a defective object to be replaced by a replacement pattern in a frame of a sequence of image frames as a misdetection is presented that comprises determining a value of a first similarity measure between a boundary of the detected defective object and a boundary of the replacement pattern and determining a value of a second similarity measure between the detected defective object and the replacement pattern. The detection of the defective object is determined as a misdetection if at least one of the following holds true: the value of the first similarity measure is outside of a corresponding first similarity acceptance range and the value of the second similarity measure is inside of a corresponding second similarity acceptance range.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: March 7, 2017
    Assignee: Thomson Licensing
    Inventor: Oliver Theis
  • Publication number: 20160246817
    Abstract: A method and an apparatus for generating lens-related metadata for a light field imaging device. An image renderer generates a display image from a light field capture using a lens model. A metadata assembler then outputs parameters of the lens model used for generating the display image as lens-related metadata for the light field imaging device.
    Type: Application
    Filed: February 23, 2016
    Publication date: August 25, 2016
    Inventors: Thomas BRUNE, Oliver THEIS, Thierry BOREL, Valter DRAZIC
  • Publication number: 20160182224
    Abstract: A method and apparatus for deriving a hash value from a single channel image, comprising: size reducing the image into first resized images having different horizontal and vertical size, deriving therefrom horizontal difference images comprising horizontal neighboring pixel differences, size reducing the image into second resized images having different horizontal and vertical size, deriving therefrom vertical difference images comprising vertical neighboring pixel differences, and combining the sign bits of the horizontal neighboring pixel differences and the sign bits of the vertical neighboring pixel differences in a predefined order into bits of the hash value.
    Type: Application
    Filed: December 17, 2015
    Publication date: June 23, 2016
    Inventor: Oliver THEIS
  • Publication number: 20160119561
    Abstract: A method and an apparatus for handling a defect object in an image. A light field information retrieving unit retrieves a light field capture of the image. A view generator generates a center view and two or more side views from the light field capture. A defect determining unit then determines a defect object in the image through a comparison of the center view and the two or more side views.
    Type: Application
    Filed: October 27, 2015
    Publication date: April 28, 2016
    Inventors: Oliver THEIS, Ralf Ostermann
  • Publication number: 20160104269
    Abstract: Results of automatic detection of dirt or other non-steady defects in a sequence of digitized image frames can be unreliable. Here, a determination of a detection of a defective object to be replaced by a replacement pattern in a frame of a sequence of image frames as a misdetection is presented that comprises determining a value of a first similarity measure between a boundary of the detected defective object and a boundary of the replacement pattern and determining a value of a second similarity measure between the detected defective object and the replacement pattern. The detection of the defective object is determined as a misdetection if at least one of the following holds true: the value of the first similarity measure is outside of a corresponding first similarity acceptance range and the value of the second similarity measure is inside of a corresponding second similarity acceptance range.
    Type: Application
    Filed: October 8, 2015
    Publication date: April 14, 2016
    Inventor: Oliver THEIS
  • Publication number: 20160105591
    Abstract: Dirt or other non-steady defects are detected in a frame of a sequence of digitized image frames. No determination of motion vectors for motion compensation is required. Instead, absolute motion values for a plurality of pixels of the frame relative to a preceding frame and to a succeeding frame of the sequence are determined. Based on the assumption that motion is usually smooth in the sequence, temporal coherence violations between the frame and the preceding frame and between the frame and the succeeding frame are detected for the pixels, depending on the absolute motion values. Pixels of the plurality of pixels are determined as defective if corresponding temporal coherence violations are detected between the frame and the preceding frame and the succeeding frame.
    Type: Application
    Filed: October 6, 2015
    Publication date: April 14, 2016
    Inventor: Oliver THEIS
  • Publication number: 20160093062
    Abstract: Absolute motion values between two frames of a sequence of successive image frames are estimated based on a determination of a plurality of pyramid levels of Gaussian pyramid representations of the two frames. The Gaussian pyramid representations of the two frames are pyramid level-wise compared to generate arrays of pixel-by-pixel distance measures between corresponding pyramid levels. Arrays of motion values from the distance measures are pyramid level-wise determined, weighted by level values assigned to the corresponding pyramid levels. Then, recursively from top to bottom pyramid levels, weighted motion values of corresponding motion arrays are transferred to the motion array corresponding to a next lower pyramid level if they exceed the corresponding weighted motion values of said next lower pyramid level.
    Type: Application
    Filed: September 23, 2015
    Publication date: March 31, 2016
    Inventor: Oliver THEIS
  • Patent number: 9167219
    Abstract: A method and an apparatus for automatic restoration of an image or a sequence of images, e.g. motion picture films, are disclosed, which facilitate removal of artifacts within the image or the sequence of images. The restoration is split into a detection process, a quality control process, and a removal process. In the detection process artifacts in the image or the sequence of images are detected and information about the detected artifacts is stored in a metadata database. In the subsequent quality control process the information about the detected artifacts is reviewed by an operator. In the removal process one or more of the detected artifacts are removed from the image or the sequence of images based on the information about the detected artifacts stored in the metadata database.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: October 20, 2015
    Assignee: Thomson Licensing
    Inventors: Oliver Theis, Ralf Koehler, Oliver Kamphenkel
  • Patent number: 9038089
    Abstract: A method and an apparatus for generating metadata for digital content are described, which allow to review the generated metadata already in course of ongoing generation of metadata. The metadata generation is split into a plurality of processing tasks, which are allocated to two or more processing nodes. The metadata generated by the two or more processing nodes is gathered and visualized on an output unit.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: May 19, 2015
    Assignee: Thomson Licensing
    Inventors: Oliver Kamphenkel, Oliver Theis, Ralf Koehler
  • Patent number: 8958274
    Abstract: In accordance with an exemplary embodiment of the present invention, a method for measuring a quality parameter of an optical storage system comprising a non-diffraction-limited optical storage medium and a readout device, the method comprising the process of deriving an impulse response of the optical storage system, and the process of analyzing the impulse response to determine at least one of a width of the impulse response and a skewness of the impulse response as the quality parameter.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: February 17, 2015
    Assignee: Thomson Licensing
    Inventors: Dietmar Hepper, Oliver Theis, Xiaoming Chen, Herbert Hoelzemann, Gael Pilard
  • Publication number: 20140351736
    Abstract: A method for interactive review of two or more datasets and an apparatus configured to enable interactive review of two or more datasets are described. A first dataset and a second dataset are retrieved via an input. A processor generates representative values from the first dataset for a coarse view of the first dataset and for a fine view of the first dataset. The processor also generates representative values from the second dataset for a coarse view of the second dataset. A user interface generator includes the coarse view of the first dataset, the coarse view of the second dataset, and the fine view of the first dataset in a graphic user interface. Upon reception of a user request via a user input 32 to select the second dataset, the processor generates representative values from the second dataset for a fine view of the second dataset. The user interface generator then replaces the fine view of the first dataset in the graphic user interface with the fine view of the second dataset.
    Type: Application
    Filed: May 21, 2014
    Publication date: November 27, 2014
    Applicant: THOMSON LICENSING
    Inventors: Oliver THEIS, Thomas BRUNE
  • Publication number: 20140351685
    Abstract: A method for interactive review of a dataset and an apparatus configured to enable interactive review of a dataset are described. A user request to review the dataset is received via user input. Responsive to this request, a processor generates representative values from the dataset for a coarse view of the dataset and for a fine view of the dataset. A user interface generator then outputs a graphic user interface displaying the coarse view of the dataset and the fine view of the dataset.
    Type: Application
    Filed: May 20, 2014
    Publication date: November 27, 2014
    Applicant: THOMSON LICENSING
    Inventors: Oliver THEIS, Ralf Koehler
  • Patent number: 8560912
    Abstract: The error correction capability of block codes can be doubled if error locations are known. Prior art approaches for error location detection always involve adding dedicated redundant data which then are evaluated to yield error location information. The present invention proposes and describes how error location information in the form of clues is derived from given DC control bits that are anyway present in a data stream.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: October 15, 2013
    Assignee: Thomson Licensing
    Inventors: Oliver Theis, Xiaoming Chen, Friedrich Timmermann
  • Publication number: 20130223817
    Abstract: A method and an apparatus for automatic restoration of an image or a sequence of images, e.g. motion picture films, are disclosed, which facilitate removal of artifacts within the image or the sequence of images. The restoration is split into a detection process, a quality control process, and a removal process. In the detection process artifacts in the image or the sequence of images are detected and information about the detected artifacts is stored in a metadata database. In the subsequent quality control process the information about the detected artifacts is reviewed by an operator. In the removal process one or more of the detected artifacts are removed from the image or the sequence of images based on the information about the detected artifacts stored in the metadata database.
    Type: Application
    Filed: June 8, 2011
    Publication date: August 29, 2013
    Inventors: Oliver Theis, Ralf Koehler
  • Publication number: 20130155827
    Abstract: In accordance with an exemplary embodiment of the present invention, a method for measuring a quality parameter of an optical storage system comprising a non-diffraction-limited optical storage medium and a readout device, the method comprising the process of deriving an impulse response of the optical storage system, and the process of analyzing the impulse response to determine at least one of a width of the impulse response and a skewness of the impulse response as the quality parameter.
    Type: Application
    Filed: September 6, 2011
    Publication date: June 20, 2013
    Applicant: THOMSON LICENSING
    Inventors: Dietmar Hepper, Oliver Theis, Xiaoming Chen, Herbert Hoelzemann, Gael Pilard
  • Patent number: 8320511
    Abstract: A method and an arrangement for cycle slip detection for timing recovery of a received analog signal including asynchronously sampled digital data are implemented with a timing recovery control loop using a technique known as interpolated timing recovery and improved cycle slip detection as well as improved cycle slip correction based on said cycle slip detection. The method includes using an output signal of the loop filter in the control loop for timing recovery, generating averaged timing error values from said filtered timing error signal and accumulating changes of the averaged timing error values in adjacent blocks of samples which exceed a first threshold. Accumulated averaged timing error changes of adjacent blocks which exceed a second threshold are then declared as cycle slip and the number of cycle slips is determined by a third threshold being a tolerance threshold.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: November 27, 2012
    Assignee: Thomson Licensing
    Inventors: Xiao-Ming Chen, Oliver Theis
  • Patent number: 8245106
    Abstract: For algebraic single symbol error correction and detection, a method is proposed which achieves correcting single symbol errors at unknown positions within codewords, identifying cases where multiple symbols within a codeword are uncorrectably corrupted, and identifying cases where a single symbol within a codeword is uncorrectably corrupted. The method comprises the steps of calculating a syndrome of a received word, splitting the syndrome into two parts, checking 3 integer weight quantities calculated from the two syndrome parts, converting the syndrome into a vector of integer valued “orthogonal bit error weights” associated to the received bits, and toggling those bits of the received word, where the associated “orthogonal bit error weight” is in the upper half of its possible value range.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: August 14, 2012
    Assignee: Thomson Licensing
    Inventors: Xiao-Ming Chen, Oliver Theis, Marco Georgi
  • Publication number: 20120110253
    Abstract: The invention concerns an apparatus for data processing comprising a central processing unit and a non volatile random access memory. The central processing unit and the non volatile random access memory are connected via a memory bus. The data related to an operating system for running said apparatus is at least partly stored in said non volatile random access memory and the memory used by the operating system for operating said apparatus is at least partly said non volatile memory.
    Type: Application
    Filed: June 15, 2010
    Publication date: May 3, 2012
    Applicant: THOMSON LICENSING
    Inventors: Marco Georgi, Oliver Theis