Patents by Inventor Samrat Dutta

Samrat Dutta 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).

  • Publication number: 20250148786
    Abstract: The embodiments of present disclosure herein address unresolved problem of key capabilities that an intelligent robot must possess to perform complex and long-horizon object manipulation tasks without human intervention. The present disclosure overcomes above mentioned challenges by decoupling imitation learning task into two parts using a decouple neural network architecture comprising two modules. A high-level module that segments out sequence of primitive actions from video of human demonstration of a complex task and a low-level module that executes those primitives sequentially on robot. The high-level module, Task Sequencing Network (TSNet), is a hybrid neural network composed of Convolutional Neural Network (CNN), Recurrent Neural Network (RNN) with Connectionist Temporal Classification (CTC) loss, while low-level controller is built using dynamic movement primitives (DMP). The network is trained in a supervised learning setting.
    Type: Application
    Filed: October 22, 2024
    Publication date: May 8, 2025
    Applicant: Tata Consultancy Services Limited
    Inventors: SAMRAT DUTTA, RAJESH SINHA, PRAKASH CHANDERLAL AMBWANI
  • Patent number: 12100173
    Abstract: Depth estimation of images using deep learning methods is a wide range of application in Augmented Reality, 3D graphics and robotics. Conventional methods are supervised, which requires explicit ground truth depth information for training and the conventional unsupervised methods fails to provide a generalized solution. The present disclosure estimates accurate depth information and confidence map of a given monocular image in an unsupervised manner. A depth Neural Network receives a monocular image and predicts per-pixel depth map and a confidence map. The depth NN utilizes a negative exponential of photometric loss as ground truth information. The predicted confidence-map is further used to estimate per-pixel uncertainty map. The pose NN predicts a plurality of pose vectors between a plurality of the consecutive monocular images. Finally, the Bayesian inference module is computes the fused depth information and the fused uncertainty map.
    Type: Grant
    Filed: October 21, 2021
    Date of Patent: September 24, 2024
    Assignee: TATA CONSULTANCYSERVICES LIMITED
    Inventors: Vishal Kumar Bhutani, Madhu Babu Vankadari, Anima Majumder Dutta, Omprakash Manojkumar Jha, Samrat Dutta
  • Publication number: 20230153607
    Abstract: The present disclosure provides an adaptive meta-learning technique for determining robotic action. Conventional methods are focusing on task-relevant aspects of the input observations and fails to provide adaptive learning. Initially, a plurality of images pertaining to a visual demonstration for a robot are received by the system. Further, a plurality of vector embeddings are computed based on the plurality of images using an attentive embedding network. The attentive embedding network includes a first Convolutional Neural Network (CNN), a fully connected layer and a plurality of spatial attention modules. Finally, a control action is computed based on the plurality of vector embeddings, an image from the plurality of images, a robot joint state vector and robot joint velocity vector using a control network. The control network comprises a second CNN and a plurality of fully connected layers. The control network is connected to the attentive embedding using multiplicative spatial skip connections.
    Type: Application
    Filed: October 21, 2022
    Publication date: May 18, 2023
    Applicant: Tata Consultancy Services Limited
    Inventors: Vishal Kumar BHUTANI, Anima Majumder DUTTA, Rajesh SINHA, Samrat DUTTA
  • Publication number: 20220130062
    Abstract: Depth estimation of images using deep learning methods is a wide range of application in Augmented Reality, 3D graphics and robotics. Conventional methods are supervised, which requires explicit ground truth depth information for training and the conventional unsupervised methods fails to provide a generalized solution. The present disclosure estimates accurate depth information and confidence map of a given monocular image in an unsupervised manner. A depth Neural Network receives a monocular image and predicts per-pixel depth map and a confidence map. The depth NN utilizes a negative exponential of photometric loss as ground truth information. The predicted confidence-map is further used to estimate per-pixel uncertainty map. The pose NN predicts a plurality of pose vectors between a plurality of the consecutive monocular images. Finally, the Bayesian inference module is computes the fused depth information and the fused uncertainty map.
    Type: Application
    Filed: October 21, 2021
    Publication date: April 28, 2022
    Applicant: Tata Consultancy Services Limited
    Inventors: VISHAL KUMAR BHUTANI, MADHU BABU VANKADARI, ANIMA MAJUMDER DUTTA, OMPRAKASH MANOJKUMAR JHA, SAMRAT DUTTA
  • Publication number: 20060138392
    Abstract: The invention provides methods for making self-assembling monolayers on silicon surfaces using mild conditions.
    Type: Application
    Filed: October 26, 2005
    Publication date: June 29, 2006
    Inventors: Ned Bowden, Samrat Dutta