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公开(公告)号：US20240089592A1
公开(公告)日：2024-03-14
申请号：US18466296
申请日：2023-09-13
Applicant: NEC Laboratories America, Inc.
Inventor： Kunal Rao , Sibendu Paul , Giuseppe Coviello , Murugan Sankaradas , Oliver Po , Srimat Chakradhar
Abstract: Systems and methods are provided for dynamically tuning camera parameters in a video analytics system to optimize analytics accuracy. A camera captures a current scene, and optimal camera parameter settings are learned and identified for the current scene using a Reinforcement Learning (RL) engine. The learning includes defining a state within the RL engine as a tuple of two vectors: a first representing current camera parameter values and a second representing measured values of frames of the current scene. Quality of frames is estimated using a quality estimator, and camera parameters are adjusted based on the quality estimator and the RL engine for optimization. Effectiveness of tuning is determined using perceptual Image Quality Assessment (IQA) to quantify a quality measure. Camera parameters are adaptively tuned in real-time based on learned optimal camera parameter settings, state, quality measure, and set of actions, to optimize the analytics accuracy for video analytics tasks.
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公开(公告)号：US11783587B2
公开(公告)日：2023-10-10
申请号：US17188194
申请日：2021-03-01
Applicant: NEC Laboratories America, Inc.
Inventor： Yi Yang , Biplob Debnath , Giuseppe Coviello , Oliver Po , Srimat Chakradhar , Yang Gao
IPC: G06V20/52 , G06N3/08 , G06V20/40 , G06F18/211 , G06F18/214
CPC classification number: G06V20/52 , G06F18/211 , G06F18/214 , G06N3/08 , G06V20/41
Abstract: A computer-implemented method executed by at least one processor for detecting tattoos on a human body is presented. The method includes inputting a plurality of images into a tattoo detector, selecting one or more images of the plurality of images including tattoos, extracting, via a feature extractor, tattoo feature vectors from the tattoos found in the one or more images of the plurality of images including tattoos, applying a deep learning tattoo matching model to determine potential matches between the tattoo feature vectors and preexisting tattoo images stored in a tattoo training database, and generating a similarity score between the tattoo feature vectors and one or more of the preexisting tattoo images stored in the tattoo training database.
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公开(公告)号：US11610436B2
公开(公告)日：2023-03-21
申请号：US17197431
申请日：2021-03-10
Applicant: NEC Laboratories America, Inc.
Inventor： Biplob Debnath , Srimat Chakradhar
Abstract: Methods and systems for face recognition and response include extracting a face image from a video stream. A pre-processed index is searched for a watchlist image that matches the face image, based on a similarity distance that is computed from a normalized similarity score to satisfy metric properties. The index of the watchlist includes similarity distances between face images stored in the watchlist. An action is performed responsive to a determination that the extracted face image matches the watchlist image.
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公开(公告)号：US20230048581A1
公开(公告)日：2023-02-16
申请号：US17885115
申请日：2022-08-10
Applicant: NEC Laboratories America, Inc.
Inventor： Giuseppe Coviello , Kunal Rao , Murugan Sankaradas , Srimat Chakradhar
IPC: G06F9/54
Abstract: Methods and systems for executing an application include extending a container orchestration system application programming interface (API) to handle objects that specify components of an application. An application representation is executed using the extended container orchestration system API, including the instantiation of one or more services that define a data stream path from a sensor to a device.
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公开(公告)号：US20220374259A1
公开(公告)日：2022-11-24
申请号：US17730499
申请日：2022-04-27
Applicant: NEC Laboratories America, Inc.
Inventor： Kunal Rao , Murugan Sankaradas , Srimat Chakradhar
IPC: G06F9/48
Abstract: A method for specifying and executing an application including multiple microservices on 5G slices within a multi-tiered 5G infrastructure is presented. The method includes managing compute requirements and network requirements of the application simultaneously by determining end-to-end application characteristics by employing an application slice specification including an application ID component, an application name component, an application metadata component, a function dependencies component, a function instances component, and an instance connections component, specifying a function slice specification including a function network slice specification and a function compute slice specification, and employing a runtime component including a resource manager, an application slice controller, and an application slice monitor, wherein the resource manager maintains a database and manages starting, stopping, updating, and deleting application instances.
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Patent Agency Ranking
公开(公告)号：US11354935B2
公开(公告)日：2022-06-07
申请号：US16810061
申请日：2020-03-05
Applicant: NEC Laboratories America, Inc.
Inventor： Biplob Debnath , Erik Kruus , Murugan Sankaradas , Srimat Chakradhar
Abstract: A computer-implemented method for emulating an object recognizer includes receiving testing image data, and emulating, by employing a first object recognizer, a second object recognizer. Emulating the second object recognizer includes using the first object recognizer to perform object recognition on a testing object from the testing image data to generate data, the data including a feature representation for the testing object, and classifying the testing object based on the feature representation and a machine learning model configured to predict whether the testing object would be recognized by a second object recognizer. The method further includes triggering an action to be performed based on the classification.
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公开(公告)号：US20220156484A1
公开(公告)日：2022-05-19
申请号：US17526492
申请日：2021-11-15
Applicant: NEC Laboratories America, Inc.
Inventor： Biplob Debnath , Srimat Chakradhar , Giuseppe Coviello , Yi Yang
Abstract: Methods and systems for face clustering include determining a quality score for each of a set of input images. A first subset of the input images is clustered, having respective quality scores that exceed a predetermined threshold, to form an initial set of clusters. A second subset of the input images is clustered, having respective quality scores below the predetermined threshold. An action is performed responsive to the clustered images after the second subset is added to the initial set of clusters.
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公开(公告)号：US20210378520A1
公开(公告)日：2021-12-09
申请号：US17325613
申请日：2021-05-20
Applicant: NEC Laboratories America, Inc.
Inventor： Kunal Rao , Giuseppe Coviello , Min Feng , Biplob Debnath , Wang-pin Hsiung , Murugan Sankaradas , Srimat Chakradhar , Yi Yang , Oliver Po , Utsav Drolia
Abstract: A method for free flow fever screening is presented. The method includes capturing a plurality of frames from thermal data streams and visual data streams related to a same scene to define thermal data frames and visual data frames, detecting and tracking a plurality of individuals moving in a free-flow setting within the visual data frames, and generating a tracking identification for each individual of the plurality of individuals present in a field-of-view of the one or more cameras across several frames of the plurality of frames. The method further includes fusing the thermal data frames and the visual data frames, measuring, by a fever-screener, a temperature of each individual of the plurality of individuals within and across the plurality of frames derived from the thermal data streams and the visual data streams, and generating a notification when a temperature of an individual exceeds a predetermined threshold temperature.
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公开(公告)号：US20210312773A1
公开(公告)日：2021-10-07
申请号：US17197403
申请日：2021-03-10
Applicant: NEC Laboratories America, Inc.
Inventor： Biplob Debnath , Srimat Chakradhar , M. Ashraf Siddiquee
IPC: G08B13/196 , G06K9/00 , G06F16/783 , G06F16/78 , G08B23/00
Abstract: Methods and systems for detecting and predicting anomalies include processing frames of a video stream to determine values of a feature corresponding to each frame. A feature time series is generated that corresponds to values of the identified feature over time. A matrix profile is generated that identifies similarities of sub-sequences of the time series to other sub-sequences of the feature time series. An anomaly is detected by determining that a value of the matrix profile exceeds a threshold value. An automatic action is performed responsive to the detected anomaly.
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公开(公告)号：US20210279845A1
公开(公告)日：2021-09-09
申请号：US17182685
申请日：2021-02-23
Applicant: NEC Laboratories America, Inc.
Inventor： Min Feng , Srimat Chakradhar , Alper Yildirim
Abstract: A computer-implemented method executed by at least one processor for reducing radial distortion errors in fish-eye images is presented. The method includes capturing an image from a camera including distortions, detecting arc-shaped edge segments in the image including the distortions, estimating a main distortion parameter by fixing a distortion centerpoint in a middle of the image, estimating the distortion centerpoint with the main distortion parameter, and obtaining an undistorted version of the captured image by inverting the distortion model.
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