Patents by Inventor GAURAB BHATTACHARYA

GAURAB BHATTACHARYA 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: 12260618
    Abstract: Traditional systems used for fashion attribute detection struggle to generate accurate predictions due to presence of large intra-class and relatively small inter-class variations in data related to the fashion attributes. The disclosure herein generally relates to image processing, and, more particularly, to a method and system for fashion attribute detection. The method proposes F-AttNet, an attribute extraction network to leverage the performance of fine-grained localized fashion attribute recognition. F-AttNet comprises Attentive Multi-scale Feature Encoder (AMF) blocks that encapsulate multi-scale fine-grained attribute information upon adaptive recalibration of channel weights. F-AttNet is designed by hierarchically stacking the AMF encoders to extract deep fine-grained information across multiple scales.
    Type: Grant
    Filed: July 1, 2022
    Date of Patent: March 25, 2025
    Assignee: Tata Consultancy Services Limited
    Inventors: Jayavardhana Rama Gubbi Lakshminarasimha, Gaurab Bhattacharya, Nikhil Kilari, Bagyalakshmi Vasudevan, Balamuralidhar Purushothaman
  • Publication number: 20240420215
    Abstract: Unlike visual similarity, visual compatibility is a complex concept. Existing approaches for outfit compatibility prediction does not focus on methods with personalization. The present disclosure proposes a novel approach to model the user's preference for different styles. The outfit compatibility prediction module is a critical component of an outfit recommendation system. An outfit is said to be compatible if all the items are visually compatible and match the user's preferences. The present disclosure represents the outfit as a graph and uses Graph Neural Network (GNN) with attention mechanism to capture the inter-relationship between the items. A graph read-out layer generates the final outfit embedding. The proposed approach efficiently models the preferences of the users for different styles. Finally, the outfit compatibility score is generated by computing the similarity between the outfit embedding and the user embedding.
    Type: Application
    Filed: May 17, 2024
    Publication date: December 19, 2024
    Applicant: Tata Consultancy Services Limited
    Inventors: Vivek Bangalore SAMPATHKUMAR, Jayavardhana Rama GUBBI LAKSHMINARASIMHA, Gaurab BHATTACHARYA, Bagya Lakshmi VASUDEVAN, Arpan PAL, Balamuralidhar PURUSHOTHAMAN
  • Publication number: 20240422281
    Abstract: State of the art techniques have challenges for recoloring a product, which includes non-realistic images, incorrect color mapping, structural distortion, color spilling into background, and in handling multi-color, multi-apparel and multi-product scenario images. Embodiments of the present disclosure provide a method and system for recoloring a product using a dual attention (DA) U-Net based on a generative adversarial network (GAN) framework to generate a recolored product with a target color from an input image. The disclosed DAU-Net enables recoloring (i) a single-color in a single-product scenario, (ii) a plurality of colors in a single-product scenario, and (iii) multi-product scenario with a human model.
    Type: Application
    Filed: June 12, 2024
    Publication date: December 19, 2024
    Applicant: Tata Consultancy Services Limited
    Inventors: Gaurab BHATTACHARYA, Jayavardhana Rama GUBBI LAKSHMINARASIMHA, Bagya Lakshmi VASUDEVAN, Gaurav SHARMA, Kuruvilla ABRAHAM, Arpan PAL, Balamuralidhar PURUSHOTHAMAN, Nikhil KILARI
  • Publication number: 20240013522
    Abstract: This disclosure relates generally to identification and mitigation of bias while training deep learning models. Conventional methods do not provide effective methods for bias identification, and they require pre-defined concepts and rules for bias mitigation. The embodiments of the present disclosure train an auto-encoder to produce a generalized representation of an input image by decomposing into a set of latent embedding. The set of latent embedding are used to learn the shape and color concepts of the input image. The feature specialization is done by training an auto-encoder to reconstruct the input image using the shape embedding modulated by color embedding. To identify the bias, permutation invariant neural network is trained for classification task and attribution scores corresponding to each concept embedding are computed. The method also performs de-biasing the classifier by training it with a set of counterfactual images generated by modifying the latent embedding learned by the auto-encoder.
    Type: Application
    Filed: June 13, 2023
    Publication date: January 11, 2024
    Applicant: Tata Consultancy Services Limited
    Inventors: Jayavardhana Rama GUBBI LAKSHMINARASIMHA, Vartika SENGAR, Vivek Bangalore SAMPATHKUMAR, Gaurab BHATTACHARYA, Balamuralidhar PURUSHOTHAMAN, Arpan PAL
  • Publication number: 20230410390
    Abstract: State of art techniques for color regeneration are complex and fail to provide color control. Embodiments of the present disclosure provide a method and system for generating color variants for fashion apparels by providing a Fashion Apparel Regeneration-Generative Adversarial Network (FAR-GAN) to generate color variants of the fashion apparels. The FAR-GAN utilizes a two-step encoding process to encapsulate both an input image and an edge-map information along with a target color embedding branch to manipulate the color information present in the fashion apparel present in the input image that is to be changed to a desired target color. Furthermore, the color and structural information is disentangled by controlling them using a color consistency loss. The FAR-GAN can be trained end-to-end without incorporating complex multi-step process.
    Type: Application
    Filed: June 16, 2023
    Publication date: December 21, 2023
    Applicant: Tata Consultancy Services Limited
    Inventors: BAGYA LAKSHMI VASUDEVAN, KALYAN PRAKASH BAISHYA, KURUVILLA ABRAHAM, JAYAVARDHANA RAMA GUBBI LAKSHMINARASIMHA, GAURAB BHATTACHARYA, NIKHIL KILARI
  • Publication number: 20230069442
    Abstract: Traditional systems used for fashion attribute detection struggle to generate accurate predictions due to presence of large intra-class and relatively small inter-class variations in data related to the fashion attributes. The disclosure herein generally relates to image processing, and, more particularly, to a method and system for fashion attribute detection. The method proposes F-AttNet, an attribute extraction network to leverage the performance of fine-grained localized fashion attribute recognition. F-AttNet comprises Attentive Multi-scale Feature Encoder (AMF) blocks that encapsulate multi-scale fine-grained attribute information upon adaptive recalibration of channel weights. F-AttNet is designed by hierarchically stacking the AMF encoders to extract deep fine-grained information across multiple scales.
    Type: Application
    Filed: July 1, 2022
    Publication date: March 2, 2023
    Applicant: Tata Consultancy Services Limited
    Inventors: JAYAVARDHANA RAMA GUBBI LAKSHMINARASIMHA, GAURAB BHATTACHARYA, NIKHIL KILARI, BAGYALAKSHMI VASUDEVAN, BALAMURALIDHAR PURUSHOTHAMAN