Patents by Inventor Ramachandra RAGHAVENDRA

Ramachandra RAGHAVENDRA 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).

  • Process and system for video spoof detection based on liveness evaluation
    Patent number: 10430652
    Abstract: The invention presents a process for determining a video as being a spoof or a genuine recording of a live biometric characteristic, characterized in that it comprises the steps of: preprocessing (200) the video, determining a liveness score (300) of the video, said determination comprising, for each frame of a plurality of frames (j) of the video: computing a difference between a motion intensity of a current frame and that of each frame of a set of preceding frames to infer a differential motion intensity of the current frame, inferring (330), from the differential motion intensities of the plurality of frames, a motion intensity of the video, comparing (340) said motion intensity to a predetermined threshold, and assigning a liveness score to the video, and determining (400) whether the video is a genuine recording of a biometric characteristic or a spoof.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: October 1, 2019
    Assignee: IDEMIA IDENTITY & SECURITY FRANCE
    Inventors: Pierre Gacon, Christoph Busch, Kiran Bylappa Raja, Ramachandra Raghavendra
  • PROCESS AND SYSTEM FOR VIDEO SPOOF DETECTION BASED ON LIVENESS EVALUATION
    Publication number: 20180012059
    Abstract: The invention presents a process for determining a video as being a spoof or a genuine recording of a live biometric characteristic, characterized in that it comprises the steps of: preprocessing (200) the video, determining a liveness score (300) of the video, said determination comprising, for each frame of a plurality of frames (j) of the video: computing a difference between a motion intensity of a current frame and that of each frame of a set of preceding frames to infer a differential motion intensity of the current frame, inferring (330), from the differential motion intensities of the plurality of frames, a motion intensity of the video, comparing (340) said motion intensity to a predetermined threshold, and assigning a liveness score to the video, and determining (400) whether the video is a genuine recording of a biometric characteristic or a spoof.
    Type: Application
    Filed: January 13, 2015
    Publication date: January 11, 2018
    Inventors: Pierre GACON, Christoph BUSCH, Kiran BYLAPPA RAJA, Ramachandra RAGHAVENDRA
  • Primer composition and a kit useful for the identification of phyllanthus
    Patent number: 7829692
    Abstract: The present invention relates to an oligonucleotide primer set useful for the identification of Phyllanthus at species level, and more particularly, it relates to an oligonucleotide primer set useful for the identification of Phyllanthus species selected from the group of 4 specific primer sets and also the invention is directed to a kit useful for the identification of different species of Phyllanthus from a mixture.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: November 9, 2010
    Assignee: Council of Scientific and Industrial Research
    Inventors: Shasany Ajit Kumar, Jain Neeraj, Khanuja Suman Preet Singh, Darokar Mahendra Pandurang, Gupta Anil Kumar, Sundaresan Velusamy, Bagchi Guru Das, Singh Subhash Chandra, Singh Janardan, Jain Shital Prasad, Rao Ramachandra Raghavendra
  • PRIMER COMPOSITION AND A KIT USEFUL FOR THE IDENTIFICATION OF PHYLLANTHUS
    Publication number: 20090061434
    Abstract: The present invention relates to an oligonucleotide primer set useful for the identification of Phyllanthus at species level, and more particularly, it relates to an oligonucleotide primer set useful for the identification of Phyllanthus species selected from the group of 4 specific primer sets and also the invention is directed to a kit useful for the identification of different species of Phyllanthus from a mixture.
    Type: Application
    Filed: March 28, 2008
    Publication date: March 5, 2009
    Inventors: Shasany Ajit KUMAR, Jain NEERAJ, Khanuja Suman Preet SINGH, Darokar Mahendra PANDURANG, Gupta Anil KUMAR, Sundaresan VELUSAMY, Bagchi Guru DAS, Singh Subhash CHANDRA, Singh JANARDAN, Jain Shital PRASAD, Rao Ramachandra RAGHAVENDRA