Patents by Inventor Adi HAJJ-AHMAD

Adi HAJJ-AHMAD 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).

  • Techniques to extract ENF signals from video image sequences exploiting the rolling shutter mechanism; and a new video synchronization approach by matching the ENF signals extracted from soundtracks and image sequences
    Patent number: 10623712
    Abstract: Various systems and methods may benefit from determination of environmental signatures in recordings. For example, such signatures may aid forensic analysis and alignment of media recordings, such as alignment of audio or video recordings. A method can include extracting electric network frequency signals from an image sequence of a video recording or an audio recording. The method can also include synchronizing the video recording or the audio recording with at least one other datum based on the electric network frequency signals.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: April 14, 2020
    Assignee: UNIVERSITY OF MARYLAND, COLLEGE PARK
    Inventors: Min Wu, Adi Hajj-Ahmad, Hui Su
  • TECHNIQUES TO EXTRACT ENF SIGNALS FROM VIDEO IMAGE SEQUENCES EXPLOITING THE ROLLING SHUTTER MECHANISM; AND A NEW VIDEO SYNCHRONIZATION APPROACH BY MATCHING THE ENF SIGNALS EXTRACTED FROM SOUNDTRACKS AND IMAGE SEQUENCES
    Publication number: 20180205922
    Abstract: Various systems and methods may benefit from determination of environmental signatures in recordings. For example, such signatures may aid forensic analysis and alignment of media recordings, such as alignment of audio or video recordings. A method can include extracting electric network frequency signals from an image sequence of a video recording or an audio recording. The method can also include synchronizing the video recording or the audio recording with at least one other datum based on the electric network frequency signals.
    Type: Application
    Filed: February 12, 2018
    Publication date: July 19, 2018
    Inventors: Min WU, Adi HAJJ-AHMAD, Hui SU
  • Techniques to extract ENF signals from video image sequences exploiting the rolling shutter mechanism; and a new video synchronization approach by matching the ENF signals extracted from soundtracks and image sequences
    Patent number: 9916857
    Abstract: Various systems and methods may benefit from determination of environmental signatures in recordings. For example, such signatures may aid forensic analysis and alignment of media recordings, such as alignment of audio or video recordings. A method can include extracting electric network frequency signals from an image sequence of a video recording or an audio recording. The method can also include synchronizing the video recording or the audio recording with at least one other datum based on the electric network frequency signals.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: March 13, 2018
    Assignee: UNIVERSITY OF MARYLAND, COLLEGE PARK
    Inventors: Min Wu, Adi Hajj-Ahmad, Hui Su
  • Environmental signatures for forensic analysis and alignment of media recordings
    Patent number: 9363467
    Abstract: Various systems and methods may benefit from determination of environmental signatures in recordings. For example, such signatures may aid forensic analysis and alignment of media recordings, such as alignment of audio or video recordings. A method can include reading data representative of sensed light in a visual track of a video recording. The method can also include extracting an electric network frequency signal from the data representative of sensed light.
    Type: Grant
    Filed: November 29, 2013
    Date of Patent: June 7, 2016
    Assignee: University of Maryland, College Park
    Inventors: Ravi Garg, Avinash L. Varna, Adi Hajj-Ahmad, Min Wu
  • TECHNIQUES TO EXTRACT ENF SIGNALS FROM VIDEO IMAGE SEQUENCES EXPLOITING THE ROLLING SHUTTER MECHANISM; AND A NEW VIDEO SYNCHRONIZATION APPROACH BY MATCHING THE ENF SIGNALS EXTRACTED FROM SOUNDTRACKS AND IMAGE SEQUENCES
    Publication number: 20150356992
    Abstract: Various systems and methods may benefit from determination of environmental signatures in recordings. For example, such signatures may aid forensic analysis and alignment of media recordings, such as alignment of audio or video recordings. A method can include extracting electric network frequency signals from an image sequence of a video recording or an audio recording. The method can also include synchronizing the video recording or the audio recording with at least one other datum based on the electric network frequency signals.
    Type: Application
    Filed: May 26, 2015
    Publication date: December 10, 2015
    Inventors: Min WU, Adi HAJJ-AHMAD, Hui SU
  • Environmental Signatures for Forensic Analysis and Alignment of Media Recordings
    Publication number: 20140147097
    Abstract: Various systems and methods may benefit from determination of environmental signatures in recordings. For example, such signatures may aid forensic analysis and alignment of media recordings, such as alignment of audio or video recordings. A method can include reading data representative of sensed light in a visual track of a video recording. The method can also include extracting an electric network frequency signal from the data representative of sensed light.
    Type: Application
    Filed: November 29, 2013
    Publication date: May 29, 2014
    Applicant: University of Maryland, Office of Technology Commercialization
    Inventors: Ravi GARG, Avinash L. VARNA, Adi HAJJ-AHMAD, Min WU