Patents by Inventor Nam Duong

Nam Duong 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).

  • Publication number: 20220076438
    Abstract: A method for predicting a three-dimensional representation in a three-dimensional scene, using one or more two-dimensional representations, obtained from at least one image generated by a camera. The method includes obtaining a forest of regression trees, and for the at least one image: extracting a 2D representation associated with one or more positions within the image; predicting a 3D representation, corresponding to the extracted 2D representation, using the regression tree forest includes a set of possible associations between at least one 2D representation and a 3D representation, each possible association resulting from a predictive model; evaluating one or more of the possible associations of the regression tree forest, according to a predetermined confidence criterion; and updating the regression tree forest including a deactivation of one or more possible associations, depending on the evaluation of the possible associations.
    Type: Application
    Filed: December 10, 2019
    Publication date: March 10, 2022
    Inventors: Nam-Duong Duong, Amine Kacete, Catherine Soladie
  • Publication number: 20210174539
    Abstract: A method for estimating a camera pose in a frame of reference of a three-dimensional scene, including: obtaining an image of colour intensities of the scene; extracting points of interest, which are invariant by geometric transformation of the image; forming patches in the image, each including an extracted point of interest; predicting 3D locations of the points of interest by applying an automatic prediction system, trained by a training set including patches from images acquired from plural points of view, an image being associated with a 2D position of its point of interest in a frame of reference of the image and with a 3D position of its point of interest in the frame of reference of the scene; estimating the pose of a camera, by mapping the 2D positions of the points of interest and reprojections in the current image frame of reference of the predicted 3D locations.
    Type: Application
    Filed: October 24, 2018
    Publication date: June 10, 2021
    Inventors: Nam-Duong Duong, Amine Kacete, Catherine Soladie
  • Patent number: 9851945
    Abstract: Methods and systems of reducing power transmitted over a memory to cache bus having a plurality of cache lines by identifying floating point numbers transmitted over a cache line, rounding bits in least significant bit (LSB) positions of identified floating point (FP) numbers to a uniform binary value string, mapping the rounded bits from the LSB positions to most significant bit (MSB) positions of each FP number to increase a chance of matching bit patterns between pairs of the FP numbers, and compressing the floating point numbers by replacing matched bit patterns with smaller data elements using a defined data compression process. A decompressor decompresses the compressed FP numbers using a defined decompression process corresponding to the defined compression process; and the mapping component applies a reverse mapping function to map the rounded bits back to original LSB positions from the MSB positions to recover the original floating point numbers.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: December 26, 2017
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Nam Duong, Elliot Mednick, DongPing Zhang
  • Publication number: 20160239265
    Abstract: Methods and systems of reducing power transmitted over a memory to cache bus having a plurality of cache lines by identifying floating point numbers transmitted over a cache line, rounding bits in least significant bit (LSB) positions of identified floating point (FP) numbers to a uniform binary value string, mapping the rounded bits from the LSB positions to most significant bit (MSB) positions of each FP number to increase a chance of matching bit patterns between pairs of the FP numbers, and compressing the floating point numbers by replacing matched bit patterns with smaller data elements using a defined data compression process. A decompressor decompresses the compressed FP numbers using a defined decompression process corresponding to the defined compression process; and the mapping component applies a reverse mapping function to map the rounded bits back to original LSB positions from the MSB positions to recover the original floating point numbers.
    Type: Application
    Filed: February 16, 2015
    Publication date: August 18, 2016
    Inventors: Nam Duong, Elliot Mednick, DongPing Zhang