公开(公告)号：US10275501B2

公开(公告)日：2019-04-30

申请号：US14813686

申请日：2015-07-30

Applicant: TATA Consultancy Services Limited ,  Purdue Research Foundation

Inventor： Devarajan Ramanujan ,  William Z. Bernstein ,  Karthik Ramani ,  Devadatta Madhukar Kulkarni ,  Jeffery Tew

IPC: G06F17/30

Abstract: Systems and method for multi-dimensional data representation of an object is provided. The multi-dimensional data representation method includes evaluating a similarity measure for a query corresponding to an object. The similarity measure between the objects are used to compute the similarity values corresponding to the object and based on at least one metadata dimension associated with the object. The similarity value are sorted to create a multi-dimensional array of similarity values. The similarity values are represented in a scalar form and a visualization interface displays a multi visual representation of the similarity values and data associated with the object.

公开(公告)号：US09348877B2

公开(公告)日：2016-05-24

申请号：US13867503

申请日：2013-04-22

Applicant: Purdue Research Foundation

Inventor： Karthik Ramani ,  Natraj Iyer ,  Kuiyang Lou ,  Subramaniam Jayanti

IPC: G06F17/30 ,  G06K9/00 ,  G06K9/44 ,  G06K9/68

CPC classification number: G06F17/30 ,  G06F17/30259 ,  G06F17/30554 ,  G06K9/00201 ,  G06K9/44 ,  G06K9/6892

Abstract: Techniques are provided for searching on three dimensional (3D) objects across large, distributed repositories of 3D models. 3D shapes are created for input to a search system; optionally user-defined similarity criterion is used, and search results are interactively navigated and feedback received for modifying the accuracy of the search results. Search input can also be given by picking 3D models from a cluster map or by providing the orthographic views for the 3D model. Feedback can be given by a searcher as to which models are similar and which are not. Various techniques adjust the search results according to the feedback given by the searcher and present the new search results to the searcher.

公开(公告)号：US20250124308A1

公开(公告)日：2025-04-17

申请号：US18913541

申请日：2024-10-11

Applicant: Purdue Research Foundation ,  Massachusetts Institute of Technology

Inventor： Karthik Ramani ,  Runlin Duan ,  Maria Yang

IPC: G06N5/022

Abstract: A system and method for interactive visualization of knowledge provided by large language models (LLMs) is disclosed. The system advantageously organizes LLM responses into an interactive knowledge graph visualization. Additionally, the system enables the user to interactively expand a knowledge graph by further prompting the LLM to provide additional responses that include additional knowledge. When applied to the task of design ideation, the interactive knowledge graph visualization helps to mitigate design fixation and enhances the overall efficiency, quality, quantity, and depth of concepts in the ideation process.

公开(公告)号：US12266273B2

公开(公告)日：2025-04-01

申请号：US18049065

申请日：2022-10-24

Applicant: Purdue Research Foundation

Inventor： Karthik Ramani ,  Ana Villanueva Pérez

IPC: G09B19/00 ,  G06T11/00 ,  G09B7/00 ,  H04L67/131

Abstract: An augmented reality system for developing and providing augmented reality learning experiences is disclosed. The augmented reality system advantageously combines augmented reality with the capabilities of cloud technology to provide a pull-based collaborative model, in which students and instructors collaborate by uploading, sharing, and downloading augmented reality learning content. The augmented reality system enables students to improve the augmented reality learning content by adding contributions to the original augmented reality learning content that was created by an instructor.

公开(公告)号：US20250058461A1

公开(公告)日：2025-02-20

申请号：US18937756

申请日：2024-11-05

Applicant: Purdue Research Foundation

Inventor： Karthik Ramani ,  Ke Huo ,  Yuanzhi Cao ,  Tianyi Wang

IPC: B25J9/16

Abstract: A system and method for authoring and performing Human-Robot-Collaborative (HRC) tasks is disclosed. The system and method adopt an embodied authoring approach in Augmented Reality (AR), for spatially editing the actions and programming the robots through demonstrative role-playing. The system and method utilize an intuitive workflow that externalizes user's authoring as demonstrative and editable AR ghost, allowing for spatially situated visual referencing, realistic animated simulation, and collaborative action guidance. The system and method utilize a dynamic time warping (DTW) based collaboration model which takes the real-time captured motion as inputs, maps it to the previously authored human actions, and outputs the corresponding robot actions to achieve adaptive collaboration.

公开(公告)号：US12175748B2

公开(公告)日：2024-12-24

申请号：US17933714

申请日：2022-09-20

Applicant: Purdue Research Foundation

Inventor： Ke Huo ,  Karthik Ramani

IPC: G06V20/20 ,  G06F3/0484 ,  G06T11/00 ,  G06T15/00 ,  H04W88/02

Abstract: A method and system for localizing a plurality of stationary devices, such as Internet of Things (IoT devices), arranged in an environment is disclosed. A mobile device is configured to survey an environment to generate a three-dimensional map of the environment using simultaneous localization and mapping (SLAM) techniques. The mobile device and the stationary devices are equipped with wireless transceivers, such as Ultra-wideband radios, for measuring distances between the devices using wireless ranging techniques. Based on the measured distances, the mobile device is configured to determine locations of the stationary devices in a reference frame of the three-dimensional map. In some embodiments, the determined locations can be used to enable a variety of spatially aware augmented reality features and interactions between the mobile device and the stationary device.

公开(公告)号：US12061790B2

公开(公告)日：2024-08-13

申请号：US18340351

申请日：2023-06-23

Applicant: Purdue Research Foundation

Inventor： Vinayak Raman Krishnamurthy ,  Cecil Piya ,  Karthik Ramani

IPC: G06F3/04883 ,  G06F3/01 ,  G06F3/0346 ,  G06F3/04845 ,  G06T19/00 ,  G06T19/20

CPC classification number: G06F3/04883 ,  G06F3/017 ,  G06F3/0346 ,  G06F3/04845 ,  G06T19/006 ,  G06T19/20 ,  G06T2219/2016

Abstract: Some examples provides a set of frameworks, process and methods aimed at enabling the expression and exploration of free-form and parametric 3D shape designs enabled through natural interactions with a hand-held mobile device acting as a controller for 3D virtual objects. A reference plane in a virtual space generated by the location of the mobile device may be used to select a 3D virtual object intersected by the reference plane. Positioning of the mobile device may also be used to control a pointer in the virtual space. In an example, the orientation of the mobile device may be detected by an accelerometer or gyroscope. In example, the position of the mobile device may be detected by a position sensor.

公开(公告)号：US20240004542A1

公开(公告)日：2024-01-04

申请号：US18340351

申请日：2023-06-23

Applicant: Purdue Research Foundation

Inventor： Vinayak Raman Krishnamurthy ,  Cecil Piya ,  Karthik Ramani

IPC: G06F3/04883 ,  G06F3/04845 ,  G06T19/20 ,  G06T19/00 ,  G06F3/0346 ,  G06F3/01

CPC classification number: G06F3/04883 ,  G06F3/04845 ,  G06T19/20 ,  G06T19/006 ,  G06F3/0346 ,  G06F3/017 ,  G06T2219/2016

Abstract: Some examples provides a set of frameworks, process and methods aimed at enabling the expression and exploration of free-form and parametric 3D shape designs enabled through natural interactions with a hand-held mobile device acting as a controller for 3D virtual objects. A reference plane in a virtual space generated by the location of the mobile device may be used to select a 3D virtual object intersected by the reference plane. Positioning of the mobile device may also be used to control a pointer in the virtual space. In an example, the orientation of the mobile device may be detected by an accelerometer or gyroscope. In example, the position of the mobile device may be detected by a position sensor.

公开(公告)号：US11809670B2

公开(公告)日：2023-11-07

申请号：US18152021

申请日：2023-01-09

Applicant: Purdue Research Foundation

Inventor： Sang Ho Yoon ,  Karthik Ramani

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/0447 ,  G06F3/0416 ,  G06F3/0443

Abstract: A sensing system includes a base material, a plurality of electrodes, a capacitive sensing channel and a controller. The stretchable base material has a resistance distribution that changes in response to being mechanically deformed as a result of a human body contact. The base material has a rebound elasticity. The electrodes are attached to a perimeter of the base material, the capacitive sensing channel is attached to the base material. The controller is operatively connected to the plurality of electrodes and the capacitive sensing channel. The controller is configured to measure instantaneous voltage measurements from the plurality of electrodes, and determine whether the base material is mechanically deformed based on the instantaneous voltage measurements using a support vector machine classifier.

公开(公告)号：US11360570B2

公开(公告)日：2022-06-14

申请号：US17107160

申请日：2020-11-30

Applicant: Purdue Research Foundation

Inventor： Ayan Sinha ,  Chiho Choi ,  Joon Hee Choi ,  Karthik Ramani

IPC: G06F3/01 ,  H04N13/271 ,  G06N20/00 ,  G06V10/44 ,  G06V20/64 ,  G06V30/194 ,  G06V40/10

Abstract: A method for hand pose identification in an automated system includes providing depth map data of a hand of a user to a first neural network trained to classify features corresponding to a joint angle of a wrist in the hand to generate a first plurality of activation features and performing a first search in a predetermined plurality of activation features stored in a database in the memory to identify a first plurality of hand pose parameters for the wrist associated with predetermined activation features in the database that are nearest neighbors to the first plurality of activation features. The method further includes generating a hand pose model corresponding to the hand of the user based on the first plurality of hand pose parameters and performing an operation in the automated system in response to input from the user based on the hand pose model.