Patents by Inventor Yao-Jen Chang

Yao-Jen Chang 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).

  • METHODS AND APPARATUS FOR HILN DETERMINATION WITH A DEEP ADAPTATION NETWORK FOR BOTH SERUM AND PLASMA SAMPLES
    Publication number: 20210334972
    Abstract: A method of characterizing a serum or plasma portion of a specimen in a specimen container provides an HILN (hemolysis, icterus, lipemia, normal) determination. Pixel data of an input image of the specimen container is processed by a classification network to identify whether the specimen contains plasma or serum. Specimen Pixel data representing a plasma sample are forwarded to a segmentation/classification/regression network trained with plasma samples for HILN determination. Pixel data representing a serum sample are forwarded to a transformation network, wherein the serum sample pixel data is transformed into pixel data that matches pixel data of a corresponding previously-collected plasma sample by changing sample color, contrast, intensity, and/or brightness. The transformed serum sample pixel data are forwarded to the segmentation/classification/regression network for HILN determination.
    Type: Application
    Filed: September 19, 2019
    Publication date: October 28, 2021
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventors: Venkatesh NarasimhaMurthy, Vivek Singh, Yao-Jen Chang, Benjamin S. Pollack, Ankur Kapoor
  • HYPOTHESIZING AND VERIFICATION NETWORKS AND METHODS FOR SPECIMEN CLASSIFICATION
    Publication number: 20210333298
    Abstract: A method of characterizing a specimen as containing hemolysis, icterus, or lipemia is provided. The method includes capturing one or more images of the specimen, wherein the one or more images include a serum or plasma portion of the specimen. Pixel data is generated by capturing the image. The pixel data of the one or more images of the specimen is processed using a first network executing on a computer to predict a classification of the serum or plasma portion, wherein the classification comprises hemolysis, icterus, and lipemia. The predicted classification is verified using one or more verification networks. Quality check modules and specimen testing apparatus adapted to carry out the method are described, as are other aspects.
    Type: Application
    Filed: September 19, 2019
    Publication date: October 28, 2021
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventors: Venkatesh NarasimhaMurthy, Vivek Singh, Yao-Jen Chang, Benjamin S. Pollack, Ankur Kapoor
  • SYSTEMS, METHODS AND APPARATUS FOR AUTONOMOUS DIAGNOSTIC VERIFICATION OF OPTICAL COMPONENTS OF VISION-BASED INSPECTION SYSTEMS
    Publication number: 20210333217
    Abstract: Methods of autonomous diagnostic verification and detection of defects in the optical components of a vision-based inspection system are provided. The method includes illuminating a light panel with a first light intensity pattern, capturing a first image of the first light intensity pattern with a sensor, illuminating the light panel with a second light intensity pattern different than the first light intensity pattern, capturing a second image of the second light intensity pattern with the sensor, comparing the first image and the second image to generate a comparison of images, and identifying defects in the light panel or the sensor based upon the comparison of images. Systems adapted to carry out the methods are provided as are other aspects.
    Type: Application
    Filed: September 19, 2019
    Publication date: October 28, 2021
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventors: Yao-Jen Chang, Benjamin S. Pollack, Rayal Raj Prasad Nalam Venkat, Venkatesh NarasimhaMurthy
  • GENERAL CONSTRAINT INFORMATION SYNTAX IN VIDEO CODING
    Publication number: 20210314623
    Abstract: A method of processing video data comprises performing a bitstream conformance process that determines whether a bitstream that comprises an encoded representation of the video data conforms to a video coding standard, wherein the bitstream conformance process determines that the bitstream does not conform to the video coding standard when at least one of: a chroma-related constraint flag is equal to 0 and when there are no chroma components for pictures in the bitstream, or an inter prediction-related constraint flag is equal to 0 when all slices of the bitstream are I slices.
    Type: Application
    Filed: March 31, 2021
    Publication date: October 7, 2021
    Inventors: Yao-Jen Chang, Vadim Seregin, Yong He, Muhammed Zeyd Coban, Marta Karczewicz
  • SIGNALING OF SYNTAX ELEMENTS FOR VIDEO DATA
    Publication number: 20210314624
    Abstract: An example method includes decoding, from a picture header syntax structure of a coded video bitstream, a syntax element indicating whether or not a picture associated with the picture header syntax structure may include multiple different types of Network Abstraction Layer (NAL) units; responsive to the syntax element indicating that the picture may include multiple different types of NAL units, decoding a merged subpicture track that includes the picture where each picture in the merged subpicture track refers to a common picture parameter set (PPS); and reconstructing, based on the common PPS, samples of the picture.
    Type: Application
    Filed: April 1, 2021
    Publication date: October 7, 2021
    Inventors: Muhammed Zeyd Coban, Vadim Seregin, Yong He, Yao-Jen Chang
  • Signalling for merge mode with motion vector differences in video coding
    Patent number: 11140406
    Abstract: A video decoder configured to generate a first merge candidate list for a first block; determine that the first block is coded in a merge mode with motion vector differences; in response to determining that a maximum number of entries for the first merge candidate list is equal to 1, infer a value of a first instance of a flag to be equal to a first value, wherein the first value for the flag indicates that the first block is to be decoded using a first entry in the first merge candidate list; receive first motion vector difference information; determine first motion information for predicting the first block based on candidate motion information included in the first entry of the first merge candidate list and the first motion vector difference information; and decode the first block using the first motion information.
    Type: Grant
    Filed: February 18, 2020
    Date of Patent: October 5, 2021
    Assignee: Qualcomm Incorporated
    Inventors: Yao-Jen Chang, Wei-Jung Chien, Marta Karczewicz
  • INDEPENDENT SUBPICTURE SIGNALING IN VIDEO CODING
    Publication number: 20210297704
    Abstract: A method of decoding video data, the method comprising: obtaining, from a bitstream that comprises an encoded representation of the video data, a first syntax element indicating a number of subpictures in each picture in a coded layer video sequence (CLVS); based on the first syntax element indicating that the number of subpictures in each picture in the CLVS is greater than 1, obtaining, from the bitstream, a second syntax element that specifies whether all subpicture boundaries in the CLVS are treated as picture boundaries; and based on the second syntax element specifying that all subpicture boundaries in the CLVS are treated as picture boundaries, decoding each subpicture in each of the pictures in the CLVS as a separate picture.
    Type: Application
    Filed: March 10, 2021
    Publication date: September 23, 2021
    Inventors: Yao-Jen Chang, Yong He, Vadim Seregin, Muhammed Zeyd Coban, Marta Karczewicz
  • ESTIMATING PATIENT BIOGRAPHIC DATA PARAMETERS
    Publication number: 20210287368
    Abstract: Patient biographic data may be estimated by receiving patient image data, applying the patient image data to a machine learned model, the machine learned model trained on second patient data and trained to map the second patient data to associated biographic data using machine learned features, generating the patient biographic data based on the applying and the machine learned features, and outputting the patient biographic data. The patient biographic data may include a patient weight, a patient height, a patient gender, and a patient age.
    Type: Application
    Filed: March 10, 2020
    Publication date: September 16, 2021
    Inventors: Ruhan Sa, Birgi Tamersoy, Yao-jen Chang, Klaus Kirchberg, Vivek Singh, Ankur Kapoor, Andreas Wimmer
  • Constant slice header parameters signaled at higher syntax level for video coding
    Patent number: 11109070
    Abstract: An example device includes a memory configured to store video data and one or more processors implemented in circuitry and communicatively coupled to the memory. The one or more processors are configured to determine whether a maximum number of merge candidates for a slice of the video data is equal to a first value. The one or more processors are configured to infer a value of a first syntax element to be equal to a second value based at least in part on the maximum number of merge candidates for the slice being equal to the first value, the first syntax element being indicative of a maximum number of merge candidates and a maximum number of merge candidates of a non-rectangular coding mode. The one or more processors are also configured to decode the slice based on the maximum number of merge candidates and the first syntax element.
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: August 31, 2021
    Assignee: Qualcomm Incorporated
    Inventors: Yao-Jen Chang, Vadim Seregin, Muhammed Zeyd Coban, Adarsh Krishnan Ramasubramonian, Marta Karczewicz
  • Adjusting a collimator of an X-ray source
    Patent number: 11090020
    Abstract: A method is disclosed for adjusting a collimator of an X-ray source. In an embodiment, the method includes detecting an arrangement of an X-ray detector with respect to the X-ray source; automatically determining an adjustment for the collimator based on the detected position of the X-ray detector with respect to the X-ray source; and automatically adjusting the collimator based on the determined adjustment for the collimator. An X-ray device and computer readable medium are also disclosed.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: August 17, 2021
    Assignee: SIEMENS HEALTHCARE GMBH
    Inventors: Susanne Oepping, Ralf Nanke, Michael Fuhrmann, Birgi Tamersoy, Yao-jen Chang, Terrence Chen
  • SIGNAL TRANSCEIVING SYSTEM AND METHOD
    Publication number: 20210242969
    Abstract: A signal transceiving system includes: a first signal transceiver terminal; and a second signal transceiver terminal wired coupled to the first signal transceiver terminal. The first signal transceiver terminal transmits a digital signal to the second signal transceiver terminal. In response to detection of a first signal edge, the second signal transceiver terminal starts counting of a first time slot. Based on a count of at least one signal edge detected during the first time slot, the second signal transceiver terminal judges the digital signal as being logic “0” or logic “1”.
    Type: Application
    Filed: February 4, 2020
    Publication date: August 5, 2021
    Inventor: Yao-Jen CHANG
  • SEMICONDUCTOR STRUCTURE AND METHOD FOR FABRICATING SEMICONDUCTOR STRUCTURE
    Publication number: 20210233863
    Abstract: Method for fabricating a semiconductor structure is provided. First features are formed in a first product region of each die area and in a material layer through a first mask. Second features are formed in a second product region of each die area and in the material layer through a second mask. Third features are formed in a third product region of each die area and in the material layer through a third mask. Fourth features are formed in a fourth product region of each die area and in the material layer through a fourth mask. Fifth features are formed in an alignment region between the first, second, third and fourth product regions of each die area and in the material layer through the first, second, third and fourth masks. The first product region is free of the second, third, and fourth features.
    Type: Application
    Filed: April 9, 2021
    Publication date: July 29, 2021
    Inventors: Chung-Yu LU, Yao-Jen CHANG, Sao-Ling CHIU
  • WRAPAROUND OFFSETS FOR REFERENCE PICTURE RESAMPLING IN VIDEO CODING
    Publication number: 20210203988
    Abstract: A video decoder can be configured to obtain, from a picture parameter set (PPS) data structure of video data, a value for a wraparound offset; in response to determining that a block of the video data is encoded in an inter prediction mode, determine a motion vector for the block and a reference picture for the block; determine a horizontal wrap around position in the reference picture based on the value for the wraparound offset; and determine a prediction block for the block based on the horizontal wrap around position.
    Type: Application
    Filed: December 22, 2020
    Publication date: July 1, 2021
    Inventors: Yao-Jen Chang, Vadim Seregin, Muhammed Zeyd Coban
  • Device and method for coding video data
    Patent number: 11051029
    Abstract: A method of decoding a bitstream by an electronic device is provided. An image frame is received from the bitstream, and a block unit is determined from the image frame. A prediction index of the block unit is determined from the bitstream. A plurality of reference mode indices is determined based on a plurality of neighboring blocks of the block unit. The electronic device determines whether the reference mode indices are greater than a specific one of a plurality of non-angular mode indices. When the reference mode indices are greater than the specific non-angular mode index, the electronic device determines whether a difference between the reference mode indices is equal to two. When the difference is equal to two, a prediction mode is selected according to the prediction index and based on a first candidate list. Then, the block unit is reconstructed based on the prediction mode.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: June 29, 2021
    Assignee: FG Innovation Company Limited
    Inventors: Hong-Jheng Jhu, Yao-Jen Chang
  • REFERENCE SUBPICTURE SCALING RATIOS FOR SUBPICTURES IN VIDEO CODING
    Publication number: 20210195223
    Abstract: A video decoder can be configured to determine that a first subpicture of a current picture has associated scaling parameters; receive the associated scaling parameters for the first subpicture of the current picture in response to determining that the first subpicture of the current picture has the associated scaling parameters; determine motion information, for a block of the first subpicture of the current picture, that identifies a subpicture of a reference picture; locate a prediction block for the block of the first subpicture of the current picture in the subpicture of the reference picture; and scale the prediction block based on the associated scaling parameters for the first subpicture of the current picture.
    Type: Application
    Filed: December 17, 2020
    Publication date: June 24, 2021
    Inventors: Yao-Jen Chang, Vadim Seregin, Muhammed Zeyd Coban
  • REFERENCE PICTURE SCALING RATIOS FOR REFERENCE PICTURE RESAMPLING IN VIDEO CODING
    Publication number: 20210195172
    Abstract: A video encoder and video decoder may be configured to disable subpicture processing in situations where reference picture scaling is enabled. In another example, when reference picture scaling is enabled, a video encoder may determine a reference picture scaling ratio for the reference picture resampling process based on a width of a scaling window (PicOutputWidthL) of the current picture and a height of the scaling window (PicOutputHeightL) of the current picture. The values of PicOutputWidthL and PicOutputHeightL are constrained, respectively, relative to a width of a scaling window (refPicOutputWidthL) of the reference picture and a height of the scaling window (refPicOutputHeightL) of the reference picture.
    Type: Application
    Filed: December 11, 2020
    Publication date: June 24, 2021
    Inventors: Yao-Jen Chang, Vadim Seregin, Muhammed Zeyd Coban
  • PICTURE HEADER SIGNALING FOR VIDEO CODING
    Publication number: 20210195179
    Abstract: An example method of processing video data includes parsing at least one of a first flag of the video data, in a picture header, indicative of whether a set of inter slice syntax elements are included in the picture header, and a second flag of the video data, in the picture header, indicative of whether a set of intra slice syntax elements are included in the picture header, selectively parsing at least one of the set of inter slice syntax elements, in the picture header, based on the first flag and the set of intra slice syntax elements, in the picture header, based on the second flag, and reconstructing the picture based on at least one of the set of inter slice syntax elements and the set of intra slice syntax elements.
    Type: Application
    Filed: December 18, 2020
    Publication date: June 24, 2021
    Inventors: Muhammed Zeyd Coban, Vadim Seregin, Yao-Jen Chang, Marta Karczewicz
  • MOTION COMPENSATION USING SIZE OF REFERENCE PICTURE
    Publication number: 20210195173
    Abstract: A video coder is configured to determine a reference block of a reference picture for prediction of a current block of a current picture using motion information and to generate a set of reference samples for the current block of the current picture. To generate the set of reference samples, the video coder is configured to perform reference sample clipping on the reference block of the reference picture based on a size of the reference picture. The video coder is further configured to generate a prediction block for the current block of the current picture based on the set of reference samples.
    Type: Application
    Filed: December 17, 2020
    Publication date: June 24, 2021
    Inventors: Vadim Seregin, Yao-Jen Chang, Muhammed Zeyd Coban
  • Methods and apparatus adapted to identify a specimen container from multiple lateral views
    Patent number: 11042788
    Abstract: A model-based method of determining characteristics of a specimen container. The method includes providing a specimen container, capturing images of the specimen container at different exposures times and at different spectra having different nominal wavelengths, selecting optimally-exposed pixels from the images at different exposure times at each spectra to generate optimally-exposed image data for each spectra, and classifying the optimally-exposed pixels as at least being one of tube, label or cap, and identifying a width, height, or width and height of the specimen container based upon the optimally-exposed image data for each spectra. Quality check modules and specimen testing apparatus adapted to carry out the method are described, as are other aspects.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: June 22, 2021
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventors: Stefan Kluckner, Yao-Jen Chang, Terrence Chen, Benjamin S. Pollack
  • Systems, methods and apparatus for identifying a specimen container cap
    Patent number: 11035870
    Abstract: A model-based method of determining characteristics of a specimen container cap to identify the container cap. The method includes providing a specimen container including a container cap; capturing backlit images of the container cap taken at different exposures lengths and using a plurality of different nominal wavelengths; selecting optimally-exposed pixels from the images at different exposure lengths at each nominal wavelength to generate optimally-exposed image data for each nominal wavelength; classifying the optimally-exposed pixels as at least being one of a tube, a label or a cap; and identifying a shape of the container cap based upon the optimally-exposed pixels classified as being the cap and the image data for each nominal wavelength. Quality check modules and specimen testing apparatus adapted to carry out the method are described, as are numerous other aspects.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: June 15, 2021
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventors: Stefan Kluckner, Yao-Jen Chang, Terrence Chen, Benjamin S. Pollack