Patents by Inventor Balamuralidhar Purushothaman

Balamuralidhar Purushothaman 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: 20200005162
    Abstract: This disclosure relates generally to robotic network, and more particularly to a method and system for hierarchical decomposition of tasks and task planning in a robotic network. While a centralized system is used for action planning in a robotic network, any communication network issues can adversely affect working of the robotic network. Further, hardcoding one or more specific tasks to a robot restricts use of the robots irrespective of capabilities of the robots. The robotic agent decomposes a goal assigned to the robot to multiple sub-goals, and for each sub-goal, identifies one or more tasks to be executed/performed by the robot. An action plan is generated based on all such tasks identified, and the robot executes the action plan, in response to the goal assigned to the robot.
    Type: Application
    Filed: July 2, 2019
    Publication date: January 2, 2020
    Applicant: Tata Consultancy Services Limited
    Inventors: Ajay KATTEPUR, Sounak DEY, Balamuralidhar PURUSHOTHAMAN
  • Publication number: 20190389060
    Abstract: Systems and methods for generating control system solutions for robotics environments is provided. The traditional systems and methods provide robotics solutions but specialized to only a particular robotic application, domain, and selected structure.
    Type: Application
    Filed: February 6, 2019
    Publication date: December 26, 2019
    Applicant: Tata Consultancy Services Limited
    Inventors: Subhrojyoti ROY CHAUDHURI, Amar Satyabroto BANERJEE, Puneet PATWARI, Arijit MUKHERJEE, Ajay KATTEPUR, Balamuralidhar PURUSHOTHAMAN, Arpan PAL, Sounak DEY, Chayan SARKAR
  • Publication number: 20190368133
    Abstract: This disclosure relates generally to systems and methods for data acquisition and asset inspection in presence of magnetic interference. Data acquisition and assets inspection systems in many infrastructures such as railway, power line, and bridges provide inaccurate results in presence of magnetic interference. The proposed system and method proposes UAV based navigation through a dynamic correction path to inspect one or more assets in one or more infrastructures. A plurality of sensors are integrated with the UAV to acquire images of the one or more assets in presence of magnetic field. The acquired images are further processed to segment and detect anomalies in one or more parts of the one or more assets. The detected anomalies are further classified as potential anomalies and non-potential anomalies. The proposed method provides accurate results with reduced processing time.
    Type: Application
    Filed: June 5, 2019
    Publication date: December 5, 2019
    Applicant: Tata Consultancy Services Limited
    Inventors: Sunil Dattatraya JOSHI, Mayank MISHRA, Vaibhav VYAWAHARE, Shripad SALSINGIKAR, Jayavardhana Rama GUBBI LAKSHMINARASIMHA, Srinivas KOTAMRAJU, Sreehari Kumar BHOGINENI, Rishin RAJ, Vishnu HARIHARAN ANAND, Vishal BAJPAI, Jegan MOHAN PONRAJ, Mahesh RANGARAJAN, Balamuralidhar PURUSHOTHAMAN, Gopi KANDASWAMY
  • Patent number: 10475231
    Abstract: Methods and systems for change detection utilizing three dimensional (3D) point-cloud processing are provided. The method includes detecting changes in the surface based on a surface fitting approach with a locally weighted Moving Least Squares (MLS) approximation. The method includes acquiring and comparing surface geometry of a reference point-cloud defining a reference surface and a template point-cloud defining a template surface at local regions or local surfaces using the surface fitting approach. The method provides effective change detection for both, rigid as well as non-rigid changes, reducing false detections due to presence of noise and is independent of factors such as texture or illumination of an object or scene being tracked for changed detection.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: November 12, 2019
    Assignee: Tata Consultancy Services Limited
    Inventors: Brojeshwar Bhowmick, Swapna Agarwal, Sanjana Sinha, Balamuralidhar Purushothaman, Apurbaa Mallik
  • Patent number: 10475256
    Abstract: The disclosure generally relates to vehicle maintenance and more particularly to methods and systems for automatic vehicle maintenance scheduling. The method comprises obtaining acceleration data at a fixed sampling rate of a moving vehicle when the moving vehicle attains at least a pre-determined speed for a pre-determined time from start of the moving vehicle. The obtained acceleration data is processed to generate jerk energy values at predetermined intervals. Speed normalized jerk energy is computed based on an average of the generated jerk energy values and average speed of the moving vehicle. A relationship between journey number and the computed speed normalized jerk energy is computed. A vehicle maintenance indicator based on the computed relationship between the journey number and the computed speed normalized jerk energy is finally computed.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: November 12, 2019
    Assignee: Tata Consultancy Services Limited
    Inventors: Arijit Chowdhury, Tapas Chakravarty, Tanushree Banerjee, Balamuralidhar Purushothaman
  • Publication number: 20190333187
    Abstract: This disclosure relates generally to a method and a system for frame stitching based image construction for an indoor environment. The method enables constructing an image of a scene by stitching a plurality of key frames identified from a plurality of image frames captured by a mobile imaging device. The method overcomes multiple challenges posed by the indoor environment, effectively providing clean stitching of the key frames to construct the image of the scene. The method provides image stitching approach that combines visual data from the mobile imaging device and an inertial sensor from an Inertial Measurement Unit (IMU) mounted on the mobile imaging device, with a feedback for error correction to generate robust stitching outputs in indoor scenario.
    Type: Application
    Filed: February 4, 2019
    Publication date: October 31, 2019
    Applicant: Tata Consultancy Services Limited
    Inventors: Jayavardhana Rama GUBBI LAKSHMINARASIMHA, Akshaya RAMASWAMY, Rishin RAJ, Balamuralidhar PURUSHOTHAMAN
  • Publication number: 20190323882
    Abstract: This disclosure relates generally to methods and systems for unobtrusive and automated detection of frequencies of spatially located distinct parts of a machine. Location of vibration and detection of vibration frequency of each vibrating part in a machine is critical for routine monitoring and fault detection in the machine. Current solutions use either high frames per second (fps) industrial grade camera or stroboscopes tuned at one particular frequency. Manual stroboscopes require manual intervention for objects moving at different speeds with high convergence time. Point-lasers need prior knowledge of exact location of faults. Also Point-by-point scanning of a large machine body is time consuming. In the present disclosure, a movement detector such as RADAR enables detecting all vibration frequencies that also serve to reduce the search space of a stroboscope configured to start strobing at each detected vibration frequency to enable mapping of each vibration frequency to a corresponding vibrating part.
    Type: Application
    Filed: January 15, 2019
    Publication date: October 24, 2019
    Applicant: Tata Consultancy Services Limited
    Inventors: Arijit SINHARAY, Raj RAKSHIT, Dibyendu ROY, Tapas CHAKRAVARTY, Balamuralidhar PURUSHOTHAMAN
  • Patent number: 10338089
    Abstract: A method and system for determining a speed of a vehicle based on a GPS speed captured from a Global Positioning System (GPS). A capturing module captures GPS speed Vx and a horizontal accuracy value corresponding to a time stamp Tx. A speed modification module modifies the GPS speed Vx corresponding to the time stamp Tx. A speed correcting module corrects the GPS speed Vx corresponding to the time stamp Tx. The GPS speed may be corrected by filtering an error in the GPS speed by using a Slope dependent averaging (SDA) filter in order to obtain a first corrected speed Vx?. Further, the first corrected speed is corrected by selecting one of a center weight (CW) filter and an edge weight (EW) filter, based upon a pre-defined condition, in order to obtain a second corrected speed Vx? indicating the speed of the vehicle.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: July 2, 2019
    Assignee: TATA CONSULTANCY SERVICES LIMITED
    Inventors: Tapas Chakravarty, Arijit Chowdhury, Balamuralidhar Purushothaman
  • Patent number: 10332128
    Abstract: A method and apparatus for performing analysis on data collected at a point of sale is disclosed. The data from the point of sale is collected using voice recognition technique implemented on a mobile communication device. In order to enable this, a limited vocabulary word recognition technique is implemented using a set of libraries storing speech utterances in a memory storage unit present of the mobile communication device. Dynamic updating of module parameters associated with the stored speech utterances is enabled by a speech refinement unit of the mobile communication device. The device further enables local as well as regional data collation and analysis.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: June 25, 2019
    Assignee: Tata Consultancy Services Limited
    Inventors: Guruprasad Seshadri, Balamuralidhar Purushothaman, Girish Chandra M
  • Publication number: 20190180414
    Abstract: Systems and methods for reconstructing super-resolution images under total aliasing based upon translation values. Traditional systems and methods provide for extracting super-resolution (SR) image/s from low-resolution (LR) image/s but include aliasing as a background noise which degrades the performance or include aliasing into an image model which leads to an enormously high computational complexity. Embodiments of the present disclosure provide for reconstructing super-resolution images based upon translation values by taking aliasing in consideration by capturing a set of LR images, estimating, using a Fast Fourier Transformation, a set of translation values based upon the set of LR images, obtaining, using a multi-signal classification technique, one or more optimized frequency spectrums based upon the set of translation values and reconstructing one or more SR images based upon the set of translation values.
    Type: Application
    Filed: December 7, 2018
    Publication date: June 13, 2019
    Applicant: Tata Consultancy Services Limited
    Inventors: Achanna Anil KUMAR, Narendra N, Girish M. CHANDRA, Balamuralidhar PURUSHOTHAMAN
  • Publication number: 20190164009
    Abstract: The disclosure herein generally relate to scene change detection, and, more particularly, to use of Unmanned Vehicle (UV) to inspect a scene and perform a scene change detection using UVs. When a UV performs visual inspection of an area or an object, due to various factors, such as but not limited to environmental factors, and movement of object and/or the UV, image of the area/object captured by the drone lacks clarity, which in turn makes detection of any object a difficult task. The UV disclosed herein uses a multi scale super pixel technique for visual change detection, in order to solve the aforementioned issues. In an embodiment, the UV captures an image, identifies a reference image that matches the captured image, and generates a change map. The multi-scale super pixel analysis is then performed on this change map to detect changes between the captured image and the reference image.
    Type: Application
    Filed: February 22, 2018
    Publication date: May 30, 2019
    Applicant: Tata Consultancy Services Limited
    Inventors: Jayavardhana Rama GUBBI LAKSHMINARASIMHA, Akshaya RAMASWAMY, Sandeep Nellyam KUNNATH, Ashley VARGHESE, Balamuralidhar PURUSHOTHAMAN
  • Patent number: 10282959
    Abstract: Systems and methods for determining an actual fatigue time (AFT) for an activity are provided. The method comprises receiving a standard fatigue time (SFT) representing a time duration. The SFT is indicative of an onset of fatigue in individuals upon continuously performing the activity. The method further comprises receiving at least one external parameter and a fatigue index corresponding to the at least one external parameter. The at least one external parameter and the fatigue index are associated with the activity. The method further comprises determining the AFT for the activity based upon the SFT and the fatigue index.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: May 7, 2019
    Assignee: TATA CONSULTANCY SERVICES LIMITED
    Inventors: Srinivasan Jayaraman, Balamuralidhar Purushothaman
  • Patent number: 10255817
    Abstract: A computer implemented system for providing robust communication links to unmanned aerial vehicles is envisaged. It comprises a plurality of nodes which communicate with each other and with an unmanned aerial vehicle to allow exchange of data. A 3D signal coverage model is created which determines signal coverage provided by the plurality of nodes. A navigator present in the system navigates the unmanned aerial vehicle to follow a stored flight path based on this 3D model. Waypoints present in the path of the unmanned aerial vehicle are then identified and suitable waypoints are selected from where sensed pre-stored data is collected. A suitable node is then selected based on the stored 3D signal coverage model, location of the unmanned aerial vehicle and the nodes, and the signal strength of the nodes and the collected data is transmitted to the suitable node through the unmanned aerial vehicle to provide robust communication.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: April 9, 2019
    Assignee: Tata Consultancy Services Limited
    Inventors: Hrishikesh Sharma, Samar Shailendra, Balamuralidhar Purushothaman
  • Patent number: 10241973
    Abstract: Disclosed is a method and system for reducing data size of raw data. The system may process the raw data for calculating Renyi entropies, Wigner Ville Distributions (WVD's), Wigner Ville Spectrum (WVS) and Renyi divergence. The system may identify a first set of windows followed by a second set of windows while processing the raw data. Further, the system may calculate Eigen values for a Time-Frequency matrix of WVS of the second set of windows. The system may filter the second set of windows based on the Eigen values for preparing a third set of windows. The system prepares clusters of the Eigen values. The system may compute centroids of the clusters of the Eigen values. The system classifies each window of the third set of windows into one of the clusters indicating a relevant category of event identified from the raw data.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: March 26, 2019
    Assignee: Tata Consultancy Services Limited
    Inventors: Rahul Sinha, Balamuralidhar Purushothaman, Tapas Chakravarty
  • Publication number: 20190080503
    Abstract: Methods and systems for change detection utilizing three dimensional (3D) point-cloud processing are provided. The method includes detecting changes in the surface based on a surface fitting approach with a locally weighted Moving Least Squares (MLS) approximation. The method includes acquiring and comparing surface geometry of a reference point-cloud defining a reference surface and a template point-cloud defining a template surface at local regions or local surfaces using the surface fitting approach. The method provides effective change detection for both, rigid as well as non-rigid changes, reducing false detections due to presence of noise and is independent of factors such as texture or illumination of an object or scene being tracked for changed detection.
    Type: Application
    Filed: February 15, 2018
    Publication date: March 14, 2019
    Applicant: Tata Consultancy Services Limited
    Inventors: Brojeshwar BHOWMICK, Swapna AGARWAL, Sanjana SINHA, Balamuralidhar PURUSHOTHAMAN, Apurbaa MALLIK
  • Patent number: 10217180
    Abstract: This disclosure relates generally to inventory management, and more particularly to system and method for airborne shelf inspection and inventor management. When a UAV has to be navigated based on navigation information embedded in visual markers on different items in the inventory, and if one or more of the visual markers are not completely visible due to occlusion, then the UAV automatically recovers data that is missing due to the occlusion, and accordingly navigates the UAV.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: February 26, 2019
    Assignee: Tata Consultancy Services Limited
    Inventors: Jayavardhana Rama Gubbi Lakshminarasimha, Gopi Kandaswamy, Balamuralidhar Purushothaman, Achanna Anilkumar, Sandeep Nelliamkunnath, Pavan Kumar Reddy
  • Patent number: 10216485
    Abstract: A method and system for real-time analytics of sensor-based data is disclosed. Also disclosed is a Cloud-based Paltform-as-a-Service (PaaS) offering for sensor driven applications with services and features for their complete life-cycle management including prompt development, testing, deployment and so forth. The method of the present disclosure enables real-time tracking of various physical parameters and attributes related to smart-spaces using sensor devices implemented in the premises of the smart-space environment and using crowd-sourced user input data. Further, the parameters obtained are sent to the cloud-computing server, wherein the analytics are performed in real-time based on the obtained parameters.
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: February 26, 2019
    Assignee: TATA CONSULTANCY SERVICES LIMITED
    Inventors: Prateep Misra, Arpan Pal, Balamuralidhar Purushothaman, Chirabrata Bhaumik, Deepak Swamy, Venkatramanan Siva Subrahmanian, Debnarayan Kar, Soumitra Naskar, Sumanta Ghosh, Suman Adak
  • Publication number: 20190026553
    Abstract: System and method of the present disclosure provide a linguistic approach to image processing. Prior art focused on extracting well-defined single objects occupying large portion of an image area. However, there was no focus on higher level semantics or distribution of object categories within the image. In contrast to imagery by handheld devices, remotely sensed data contains numerous objects because of relative large coverage and distribution over objects is critical to analyzing such large coverage. Accordingly, in the present disclosure, a generative statistical model is defined wherein an aerial image is modelled as a collection of the one or more themes and each of the one or more themes is modelled as a collection of object categories. The model automatically adapts to a scale of the aerial image and appropriately identifies the themes which may be used for applications including monitoring land use, infrastructure management and the like.
    Type: Application
    Filed: July 20, 2018
    Publication date: January 24, 2019
    Applicant: Tata Consultancy Services Limited
    Inventors: Shailesh Shankar DESHPANDE, Balamuralidhar PURUSHOTHAMAN
  • Publication number: 20180341535
    Abstract: Remote sensing techniques are being increasingly used for periodic structural health monitoring of vast infrastructures. Conventionally, analysis of visual and other signals captured from sensing devices are used to diagnose faults. Such data collection and analysis is expensive in terms of both computational overheads as well as towards robotic maneuvering of data collection systems, such as a UAV. In accordance with the present disclosure, the data acquisition system is modeled as an intelligent situated agent that autonomously controls data gathering and analysis activities through a cognitive cycle of perception-recognition-action, in order to optimize the cost of efforts in identifying faults that may exist. Also, a reactive, economical planning algorithm around Qualitative Bayesian Network (QBN) that controls the sequence of data collection and analysis has been implemented.
    Type: Application
    Filed: May 15, 2018
    Publication date: November 29, 2018
    Applicant: TATA CONSULTANCY SERVICES LIMITED
    Inventors: Hrishikesh SHARMA, Hiranmay Ghosh, Balamuralidhar Purushothaman
  • Patent number: 10095944
    Abstract: The present disclosure provides systems and methods to enable detection of linear objects such as utility poles in complex and heterogeneous outdoor surroundings. The methods deal with shape and orientation as prominent features of a pole model. Candidate trapeziums from 2D images of the face of the poles are extracted, some of which represent parts of the pole. To overcome the missed detection of certain parts due to problems of occlusion and diffusion into background, shape based techniques, that extrapolate and capture a longer trapezium representing the pole is implemented. The region growing stage or extrapolation is driven by orientation-based clustering of trapeziums. Context information is further used to identify objects of interest, by discarding false positives. Besides detecting poles of interest, the detected poles are further analyzed to identify damages, if any.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: October 9, 2018
    Assignee: Tata Consultancy Services Limited
    Inventors: Hrishikesh Sharma, Adithya Vellaiappan, Balamuralidhar Purushothaman