Patents by Inventor Mahesh Ramachandran

Mahesh Ramachandran 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: 12353645
    Abstract: A tracking system and associated algorithms are disclosed that can provide a user with a continuous, reset-free augmented reality (AR) experience. When the user wears an AR headset equipped with a camera and an inertial measurement unit (IMU), motion sensor data from the IMU can be combined with image data from the camera to create a device pose, representing a position and an orientation of the headset relative to its environment. In some implementations, when a reset occurs, a six-degrees-of-freedom (6DoF) algorithm can be configured to support the pose until a re-initialization is completed. In some implementations, a neural network can be used to correct for IMU integration drifts in the 6DoF algorithm. In some implementations, the IMU-based 6DoF uses a neural network that exploits the device's past motion to infer its future motion.
    Type: Grant
    Filed: May 4, 2023
    Date of Patent: July 8, 2025
    Assignee: Google LLC
    Inventors: Luca Ballan, Mahesh Ramachandran, Qiyue Zhang, Chao Guo, Konstantine Nicholas John Tsotsos, Jie Zhang
  • Patent number: 12284089
    Abstract: Alert correlation helps reduce the number of alerts that IT staff have to act upon. Methods include a computer program product that applies a machine driven deep learning model to effectively correlate alerts caused by a common root cause. The methods of correlation provide the user the context of the root cause for the alerts. Therefore, it helps the user to quickly identify, understand and resolve the problem thereby reducing the mean time to identification and resolution. Alerts caused by the same root cause therefor come together.
    Type: Grant
    Filed: August 25, 2022
    Date of Patent: April 22, 2025
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Jiayi Gu Hoffman, Mahesh Ramachandran, Bhanu Pratap Singh
  • Patent number: 12248625
    Abstract: Techniques of providing continual augmented reality navigation include combining first and second 6DoF poses from, respectively, a localization from a map in a vicinity of a location to an image and from predicted 6DoF poses based on IMU data. The first 6DoF pose is based on a visual positioning system that uses map data from a vicinity of a location combined with an image from the world-facing camera of the AR smartglasses that provides 6DoF pose in world coordinates independent of the IMU. The second 6DoF pose is based on compensated rotational velocity and acceleration measurements derived from IMU intrinsic values.
    Type: Grant
    Filed: December 4, 2023
    Date of Patent: March 11, 2025
    Assignee: GOOGLE LLC
    Inventors: Qiyue Zhang, Luca Ballan, Hongsheng Yu, Fengtao Fan, Mahesh Ramachandran, Chao Guo
  • Publication number: 20240176419
    Abstract: Techniques of providing continual augmented reality navigation include combining first and second 6DoF poses from, respectively, a localization from a map in a vicinity of a location to an image and from predicted 6DoF poses based on IMU data. The first 6DoF pose is based on a visual positioning system that uses map data from a vicinity of a location combined with an image from the world-facing camera of the AR smartglasses that provides 6DoF pose in world coordinates independent of the IMU. The second 6DoF pose is based on compensated rotational velocity and acceleration measurements derived from IMU intrinsic values.
    Type: Application
    Filed: December 4, 2023
    Publication date: May 30, 2024
    Inventors: Qiyue Zhang, Luca Ballan, Hongsheng Yu, Fengtao Fan, Mahesh Ramachandran, Chao Guo
  • Patent number: 11847259
    Abstract: Techniques of providing continual augmented reality navigation include combining first and second 6DoF poses from, respectively, a localization from a map in a vicinity of a location to an image and from predicted 6DoF poses based on IMU data.
    Type: Grant
    Filed: November 23, 2022
    Date of Patent: December 19, 2023
    Assignee: GOOGLE LLC
    Inventors: Qiyue Zhang, Luca Ballan, Hongsheng Yu, Fengtao Fan, Mahesh Ramachandran, Chao Guo
  • Publication number: 20230359286
    Abstract: A tracking system and associated algorithms are disclosed that can provide a user with a continuous, reset-free augmented reality (AR) experience. When the user wears an AR headset equipped with a camera and an inertial measurement unit (IMU), motion sensor data from the IMU can be combined with image data from the camera to create a device pose, representing a position and an orientation of the headset relative to its environment. In some implementations, when a reset occurs, a six-degrees-of-freedom (6DoF) algorithm can be configured to support the pose until a re-initialization is completed. In some implementations, a neural network can be used to correct for IMU integration drifts in the 6DoF algorithm. In some implementations, the IMU-based 6DoF uses a neural network that exploits the device's past motion to infer its future motion.
    Type: Application
    Filed: May 4, 2023
    Publication date: November 9, 2023
    Inventors: Luca Ballan, Mahesh Ramachandran, Qiyue Zhang, Chao Guo, Konstantine Nicholas John Tsotsos, Jie Zhang
  • Publication number: 20230133541
    Abstract: Alert correlation helps reduce the number of alerts that IT staff have to act upon. Methods include a computer program product that applies a machine driven deep learning model to effectively correlate alerts caused by a common root cause. The methods of correlation provide the user the context of the root cause for the alerts. Therefore, it helps the user to quickly identify, understand and resolve the problem thereby reducing the mean time to identification and resolution. Alerts caused by the same root cause therefor come together.
    Type: Application
    Filed: August 25, 2022
    Publication date: May 4, 2023
    Applicant: OPSRAMP, INC.
    Inventors: Jiayi Gu HOFFMAN, Mahesh RAMACHANDRAN, Bhanu Pratap SINGH
  • Publication number: 20220164397
    Abstract: Aspects of the present disclosure provide systems, methods, apparatus, and computer-readable storage media that support relevance-based analysis and filtering of documents and media for one or more enterprises. Aspects disclosed herein leverage custom-built taxonomies, natural language processing (NLP), and machine learning (ML) for identifying and extracting features from highly-relevant documents. The extracted features are vectorized and then filtered based on entities (e.g., enterprises, organizations, individuals, etc.) and compliance-based risks (e.g., illegal or non-compliant activities) that are highly relevant to a particular client. The filtered feature vectors are used to identify and highlight relevant information in the corresponding documents, enabling decision making to resolve compliance-related risks. The aspects described herein generate fewer false positive or otherwise less relevant results than conventional document screening applications or manual techniques.
    Type: Application
    Filed: November 23, 2021
    Publication date: May 26, 2022
    Inventors: Rogelio Escalona, Xiao Xiao, Nathan Harris, Mahesh Ramachandran, Paul Cifarelli, Chad Longo, Katherine Kent, Yelena Altman Shapiro, Laura McCurdy, Andrew Petrosie, Mathew Lawrence, Joseph Santoru, Bob Rhodes, John Kennedy, Spencer Torene
  • Publication number: 20210243069
    Abstract: Alert correlation plays an important role in IT event management. It helps reduce the number of alerts that IT staff have to act upon. The disclosure describes a method, a computer program product that applies a machine driven deep learning model to effectively correlate alerts caused by a common root cause. In addition, this method of correlation provides the user the context of the root cause. Therefore, it helps the user to quickly identify, understand and resolve the problem thereby reducing the mean time to identification and resolution. Alerts that are caused by the same root cause therefor come together. In the machine learning world, language sequence models are doing very well on learning the sequence patterns between words. For example, the machine can learn the subtle difference between choice of words and the order of words in order to fake a person's writing.
    Type: Application
    Filed: May 18, 2020
    Publication date: August 5, 2021
    Applicant: OPSRAMP, INC.
    Inventors: Jiayi Gu HOFFMAN, Mahesh RAMACHANDRAN, Bhanu Pratap SINGH
  • Patent number: 11079841
    Abstract: Methods and apparatus relating to enabling augmented reality applications using eye gaze tracking are disclosed. An exemplary method according to the disclosure includes displaying an image to a user of a scene viewable by the user, receiving information indicative of an eye gaze of the user, determining an area of interest within the image based on the eye gaze information, determining an image segment based on the area of interest, initiating an object recognition process on the image segment, and displaying results of the object recognition process.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: August 3, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Ashwin Swaminathan, Mahesh Ramachandran
  • Publication number: 20200033943
    Abstract: Methods and apparatus relating to enabling augmented reality applications using eye gaze tracking are disclosed. An exemplary method according to the disclosure includes displaying an image to a user of a scene viewable by the user, receiving information indicative of an eye gaze of the user, determining an area of interest within the image based on the eye gaze information, determining an image segment based on the area of interest, initiating an object recognition process on the image segment, and displaying results of the object recognition process.
    Type: Application
    Filed: October 2, 2019
    Publication date: January 30, 2020
    Inventors: Ashwin SWAMINATHAN, Mahesh RAMACHANDRAN
  • Patent number: 10474233
    Abstract: Methods and apparatus relating to enabling augmented reality applications using eye gaze tracking are disclosed. An exemplary method according to the disclosure includes displaying an image to a user of a scene viewable by the user, receiving information indicative of an eye gaze of the user, determining an area of interest within the image based on the eye gaze information, determining an image segment based on the area of interest, initiating an object recognition process on the image segment, and displaying results of the object recognition process.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: November 12, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Ashwin Swaminathan, Mahesh Ramachandran
  • Patent number: 10444845
    Abstract: A mobile device determines a vision based pose using images captured by a camera and determines a sensor based pose using data from inertial sensors, such as accelerometers and gyroscopes. The vision based pose and sensor based pose are used separately in a visualization application, which displays separate graphics for the different poses. For example, the visualization application may be used to calibrate the inertial sensors, where the visualization application displays a graphic based on the vision based pose and a graphic based on the sensor based pose and prompts a user to move the mobile device in a specific direction with the displayed graphics to accelerate convergence of the calibration of the inertial sensors. Alternatively, the visualization application may be a motion based game or a photography application that displays separate graphics using the vision based pose and the sensor based pose.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: October 15, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Mahesh Ramachandran, Christopher Brunner, Arvind Ramanandan, Serafin Diaz Spindola, Murali Ramaswamy Chari
  • Publication number: 20180253145
    Abstract: Methods and apparatus relating to enabling augmented reality applications using eye gaze tracking are disclosed. An exemplary method according to the disclosure includes displaying an image to a user of a scene viewable by the user, receiving information indicative of an eye gaze of the user, determining an area of interest within the image based on the eye gaze information, determining an image segment based on the area of interest, initiating an object recognition process on the image segment, and displaying results of the object recognition process.
    Type: Application
    Filed: May 2, 2018
    Publication date: September 6, 2018
    Inventors: Ashwin SWAMINATHAN, Mahesh RAMACHANDRAN
  • Patent number: 9996150
    Abstract: Methods and apparatus relating to enabling augmented reality applications using eye gaze tracking are disclosed. An exemplary method according to the disclosure includes displaying an image to a user of a scene viewable by the user, receiving information indicative of an eye gaze of the user, determining an area of interest within the image based on the eye gaze information, determining an image segment based on the area of interest, initiating an object recognition process on the image segment, and displaying results of the object recognition process.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 12, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Ashwin Swaminathan, Mahesh Ramachandran
  • Patent number: 9953618
    Abstract: Systems and methods for performing localization and mapping with a mobile device are disclosed. In one embodiment, a method for performing localization and mapping with a mobile device includes identifying geometric constraints associated with a current area at which the mobile device is located, obtaining at least one image of the current area captured by at least a first camera of the mobile device, obtaining data associated with the current area via at least one of a second camera of the mobile device or a sensor of the mobile device, and performing localization and mapping for the current area by applying the geometric constraints and the data associated with the current area to the at least one image.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: April 24, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Mahesh Ramachandran, Ashwin Swaminathan
  • Patent number: 9947100
    Abstract: Embodiments disclosed pertain to the use of user equipment (UE) for the generation of a 3D exterior envelope of a structure based on captured images and a measurement set associated with each captured image. In some embodiments, a sequence of exterior images of a structure is captured and a corresponding measurement set comprising Inertial Measurement Unit (IMU) measurements, wireless measurements (including Global Navigation Satellite (GNSS) measurements) and/or other non-wireless sensor measurements may be obtained concurrently. A closed-loop trajectory of the UE in global coordinates may be determined and a 3D structural envelope of the structure may be obtained based on the closed loop trajectory and feature points in a subset of images selected from the sequence of exterior images of the structure.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: April 17, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Mark Leo Moeglein, Christopher Brunner, Arvind Ramanandan, Mahesh Ramachandran, Abhishek Tyagi, Murali Ramaswamy Chari
  • Patent number: 9714955
    Abstract: An accelerometer in a mobile device is calibrated by taking multiple measurements of acceleration vectors when the mobile device is held stationary at different orientations with respect to a plane normal. A circle is calculated that fits respective tips of measured acceleration vectors in the accelerometer coordinate system. The radius of the circle and the lengths of the measured acceleration vectors are used to calculate a rotation angle for aligning the accelerometer coordinate system with the mobile device surface. A gyroscope in the mobile device is calibrated by taking multiple measurements of a rotation axis when the mobile device is rotated at different rates with respect to the rotation axis. A line is calculated that fits the measurements. The angle between the line and an axis of the gyroscope coordinate system is used to align the gyroscope coordinate system with the mobile device surface.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: July 25, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Mahesh Ramachandran, Arvind Ramanandan, Christopher Brunner, Murali Ramaswamy Chari
  • Patent number: 9667873
    Abstract: Embodiments disclosed pertain to systems, method s and apparatus for the initialization of Computer Vision (CV) applications on user devices (UDs) comprising a camera and a display. In some embodiments, an optimal camera trajectory for initialization of a Computer Vision (CV) application may be determined based on an initial camera pose and an estimated pivot distance. For example, the initial camera pose may be estimated based on a first image captured by the camera. Further, the display may be updated in real-time with an indication of a desired movement direction for the camera. In some embodiments, the indication of desired movement direction may be based, in part, on a current camera pose and the optimal trajectory, where the current camera pose may be estimated based on a current image captured by the camera.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: May 30, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Alessandro Mulloni, Gerhard Reitmayr, Mahesh Ramachandran, Daniel Wagner
  • Patent number: 9661221
    Abstract: Embodiments of the present invention are directed toward providing intelligent sampling strategies that make efficient use of an always-on camera. To do so, embodiments can utilize sensor information to determine contextual information regarding the mobile device and/or a user of the mobile device. A sampling rate of the always-on camera can then be modulated based on the contextual information.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: May 23, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Shankar Sadasivam, Ashwin Swaminathan, Mahesh Ramachandran