Patents by Inventor Matti Pietikainen

Matti Pietikainen 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).

  • Automated recognition algorithm for detecting facial expressions
    Patent number: 8848068
    Abstract: This document discloses a solution for detecting human facial micro-expressions automatically by a video analysis system. Facial micro-expressions are involuntary expressions having a very short duration.
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: September 30, 2014
    Assignee: Oulun Yliopisto
    Inventors: Tomas Pfister, Matti Pietikäinen, Xiaobai Li, Guoying Zhao
  • Automated Recognition Algorithm For Detecting Facial Expressions
    Publication number: 20130300900
    Abstract: This document discloses a solution for detecting human facial micro-expressions automatically by a video analysis system. Facial micro-expressions are involuntary expressions having a very short duration.
    Type: Application
    Filed: May 8, 2012
    Publication date: November 14, 2013
    Inventors: Tomas Pfister, Matti Pietikäinen, Xiaobai Li, Guoying Zhao
  • Characterisation of paper
    Publication number: 20060045356
    Abstract: A method and system for characterising paper, where from images of numerous paper samples are extracted multi-dimensional features describing features of the paper; the said features are entered as input into a learning classifier operating in an unsupervised manner, which produces an projection of the said data of each picture part in a low-dimension space in such a way that paper grades having close properties produce close projection in the low-dimension space and the classification results depicted in the low-dimension space are used to aid classification.
    Type: Application
    Filed: August 27, 2003
    Publication date: March 2, 2006
    Inventors: Markus Turtinen, Olli Silven, Matti Pietikainen, Matti Niskanen, Topi Maenpaa