Patents by Inventor Sumantra Dutta Roy

Sumantra Dutta Roy 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).

  • Patent number: 10178396
    Abstract: A video compression framework based on parametric object and background compression is proposed. At the encoder, an object is detected and frames are segmented into regions corresponding to the foreground object and the background. The encoder generates object motion and appearance parameters. The motion or warping parameters may include at least two parameters for object translation; two parameters for object scaling in two primary axes and one object orientation parameter indicating a rotation of the object. Particle filtering may be employed to generate the object motion parameters. The proposed methodology is the formalization of the concept and usability for perceptual quality scalability layer for Region(s) of Interest. A coded video sequence format is proposed which aims at “network friendly” video representation supporting appearance and generalized motion of object(s).
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: January 8, 2019
    Assignee: STMICROELECTRONICS INTERNATIONAL N.V.
    Inventors: Santanu Chaudhury, Subarna Tripathi, Sumantra Dutta Roy
  • Patent number: 9813731
    Abstract: A video compression framework based on parametric object and background compression is proposed. At the encoder, an embodiment detects objects and segments frames into regions corresponding to the foreground object and the background. The object and the background are individually encoded using separate parametric coding techniques. While the object is encoded using the projection of coefficients to the orthonormal basis of the learnt subspace (used for appearance based object tracking), the background is characterized using an auto-regressive (AR) process model. An advantage of the proposed schemes is that the decoder structure allows for simultaneous reconstruction of object and background, thus making it amenable to the new multi-thread/multi-processor architectures.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: November 7, 2017
    Assignee: STMICROELECTONICS INTERNATIONAL N.V.
    Inventors: Santanu Chaudhury, Mona Mathur, Aditya Khandelia, Subarna Tripathi, Brejesh Lall, Sumantra Dutta Roy, Saurabh Gorecha
  • Publication number: 20140348231
    Abstract: A video compression framework based on parametric object and background compression is proposed. At the encoder, an embodiment detects objects and segments frames into regions corresponding to the foreground object and the background. The object and the background are individually encoded using separate parametric coding techniques. While the object is encoded using the projection of coefficients to the orthonormal basis of the learnt subspace (used for appearance based object tracking), the background is characterized using an auto-regressive (AR) process model. An advantage of the proposed schemes is that the decoder structure allows for simultaneous reconstruction of object and background, thus making it amenable to the new multi-thread/multi-processor architectures.
    Type: Application
    Filed: August 6, 2014
    Publication date: November 27, 2014
    Inventors: Santanu Chaudhury, Mona Mathur, Aditya Khandelia, Subarna Tripathi, Brejesh Lall, Sumantra Dutta Roy, Saurabh Gorecha
  • Patent number: 8848802
    Abstract: A video compression framework based on parametric object and background compression is proposed. At the encoder, an embodiment detects objects and segments frames into regions corresponding to the foreground object and the background. The object and the background are individually encoded using separate parametric coding techniques. While the object is encoded using the projection coefficients to the orthonormal basis of the learnt subspace (used for appearance based object tracking), the background is characterized using an auto-regressive (AR) process model. An advantage of the proposed schemes is that the decoder structure allows for simultaneous reconstruction of object and background, thus making it amenable to the new multi-thread/multi-processor architectures.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: September 30, 2014
    Assignee: STMicroelectronics International N.V.
    Inventors: Santanu Chaudhury, Mona Mathur, Aditya Khandelia, Subarna Tripathi, Brejesh Lall, Sumantra Dutta Roy, Saurabh Gorecha
  • Publication number: 20120170659
    Abstract: A video compression framework based on parametric object and background compression is proposed. At the encoder, an object is detected and frames are segmented into regions corresponding to the foreground object and the background. The encoder generates object motion and appearance parameters. The motion or warping parameters may include at least two parameters for object translation; two parameters for object scaling in two primary axes and one object orientation parameter indicating a rotation of the object. Particle filtering may be employed to generate the object motion parameters. The proposed methodology is the formalization of the concept and usability for perceptual quality scalability layer for Region(s) of Interest. A coded video sequence format is proposed which aims at “network friendly” video representation supporting appearance and generalized motion of object(s).
    Type: Application
    Filed: December 30, 2011
    Publication date: July 5, 2012
    Applicant: STMICROELECTRONICS PVT. LTD.
    Inventors: Santanu Chaudhury, Subarna Tripathi, Sumantra Dutta Roy
  • Publication number: 20110058609
    Abstract: A video compression framework based on parametric object and background compression is proposed. At the encoder, an embodiment detects objects and segments frames into regions corresponding to the foreground object and the background. The object and the background are individually encoded using separate parametric coding techniques. While the object is encoded using the projection of coefficients to the orthonormal basis of the learnt subspace (used for appearance based object tracking), the background is characterized using an auto-regressive (AR) process model. An advantage of the proposed schemes is that the decoder structure allows for simultaneous reconstruction of object and background, thus making it amenable to the new multi-thread/multi-processor architectures.
    Type: Application
    Filed: September 4, 2009
    Publication date: March 10, 2011
    Applicant: STMICROELECTRONICS PVT. LTD.
    Inventors: Santanu Chaudhury, Mona Mathur, Aditya Khandelia, Subarna Tripathi, Brejesh Lall, Sumantra Dutta Roy, Saurabh Gorecha