Patents by Inventor Gauthier Crucifix

Gauthier Crucifix 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).

  • Method and device for digital data compression with sign bit removal
    Patent number: 10212421
    Abstract: The invention provides a method and device for compressing a sequence of signed coefficients wherein coefficients are grouped, for each group, the greatest coded line index (GCLI) is determined, a quantization level t is applied and only the GCLI-t lowest weight bits of the coefficients are copied into the output stream together with the value of the GCLI. According to the invention, sign bits are not coded for coefficient having a zero quantized value. The invention also provides a method for determining a data budget required for compressing a sequence of signed coefficients, in dependence of a quantization level, and a method for compressing an image within the limits of a given data budget constraint. The invention provides a compressed data set coding an image in an efficient way.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: February 19, 2019
    Assignee: intoPIX s.a.
    Inventors: Valentin Dessy, Pascal Hubert Pellegrin, Thomas Denison, Charles Daniel Buysschaert, Gael Rouvroy, Gauthier Crucifix, Tanguy Gilmont
  • Method and Device for Digital Data Compression with Sign Bit Removal
    Publication number: 20180192051
    Abstract: The invention provides a method and device for compressing a sequence of signed coefficients wherein coefficients are grouped, for each group, the greatest coded line index (GCLI) is determined, a quantization level t is applied and only the GCLI-t lowest weight bits of the coefficients are copied into the output stream together with the value of the GCLI. According to the invention, sign bits are not coded for coefficient having a zero quantized value. The invention also provides a method for determining a data budget required for compressing a sequence of signed coefficients, in dependence of a quantization level, and a method for compressing an image within the limits of a given data budget constraint. The invention provides a compressed data set coding an image in an efficient way.
    Type: Application
    Filed: December 30, 2016
    Publication date: July 5, 2018
    Inventors: Valentin Dessy, Pascal Hubert Pellegrin, Thomas Denison, Charles Daniel Buysschaert, Gael Rouvroy, Gauthier Crucifix, Tanguy Gilmont