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公开(公告)号：WO2022076802A1
公开(公告)日：2022-04-14
申请号：PCT/US2021/054143
申请日：2021-10-08
Applicant: NEC LABORATORIES AMERICA, INC.
Inventor： DROLIA, Utsav , CHAKRADHAR, Srimat , PAUL, Sibendu
Abstract: Methods and systems for image filtering include detecting (402) a distortion level of input images, using a distortion detection model that is trained using confidence values generated by a pre-trained image classifier with a set of distorted training images. An analysis is performed (406) on input images having a detected distortion level that is lower than a threshold, with input images having an above-threshold detected distortion level being filtered out.
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Patent Agency Ranking
公开(公告)号：WO2020185517A1
公开(公告)日：2020-09-17
申请号：PCT/US2020/021201
申请日：2020-03-05
Applicant: NEC LABORATORIES AMERICA, INC.
Inventor： RAO, Kunal , COVIELLO, Giuseppe , CHAKRADHAR, Srimat , FENG, Min , SANKARADAS, Murugan , DROLIA, Utsav
Abstract: Methods and systems for authentication include determining (606), at a first worker system, that a master system that stores a current authentication-list cannot be reached by a first network. Authentication is performed (610) on an authentication request using a previously stored copy of the authentication-list at the first worker system. The authentication includes facial recognition that is performed on detected face images for a first time window, before receiving the authentication request, and for a second time window, after receiving the authentication request. Authentication removes matching detected face images after completing an authentication request to prevent other individuals from using a same identifier. Access is granted (518) to a secured area responsive to the authentication.
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公开(公告)号：WO2021242621A1
公开(公告)日：2021-12-02
申请号：PCT/US2021/033550
申请日：2021-05-21
Applicant: NEC LABORATORIES AMERICA, INC.
Inventor： RAO, Kunal , COVIELLO, Giuseppe , FENG, Min , DEBNATH, Biplob , HSIUNG, Wang-pin , SANKARADAS, Murugan , CHAKRADHAR, Srimat , YANG, Yi , PO, Oliver , DROLIA, Utsav
IPC: A61B5/01 , A61B5/00 , G16H50/80 , A61B5/1171 , G01J5/00
Abstract: A method for free flow fever screening is presented. The method includes capturing (801) 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 (803) a plurality of individuals moving in a free-flow setting within the visual data frames, and generating (805) 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 (807) the thermal data frames and the visual data frames, measuring (809), 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 (811) a notification when a temperature of an individual exceeds a predetermined threshold temperature.
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公开(公告)号：WO2021168268A1
公开(公告)日：2021-08-26
申请号：PCT/US2021/018803
申请日：2021-02-19
Applicant: NEC LABORATORIES AMERICA, INC.
Inventor： RAO, Kunal , DROLIA, Utsav , SANKARADAS, Murugan , CHAKRADHAR, Srimat
IPC: G06K9/00 , G08B13/196
Abstract: Systems and methods for determining dwell time is provided. The method includes receiving (310) images of an area (201) including one or more people (901) from one or more cameras (130), and detecting (341) a presence of each of the one or more people (901) in the received images using a worker (120). The method further includes receiving (470) by the worker (120) digital facial features stored in a watch list (112) from a master controller (110), and performing facial recognition (430) and monitoring the dwell time (420) of each of the one or more people (901). The method further includes determining if each of the one or more people is in the watch list (112) or has exceeded a dwell time threshold.
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公开(公告)号：WO2022076655A1
公开(公告)日：2022-04-14
申请号：PCT/US2021/053919
申请日：2021-10-07
Applicant: NEC LABORATORIES AMERICA, INC.
Inventor： SANKARADAS, Murugan , RAO, Kunal , YANG, Yi , DEBNATH, Biplob , DROLIA, Utsav , CHAKRADHAR, Srimat , REDKAR, Amit , RAJENDRAN, Ravi Kailasam
Abstract: A method for real-time cross-spectral object association and depth estimation is presented. The method includes synthesizing (1010), by a cross-spectral generative adversarial network (CS-GAN), visual images from different data streams obtained from a plurality of different types of sensors, applying (1020) a feature -preserving loss function resulting in real-time pairing of corresponding cross-spectral objects, and applying (1030) dual bottleneck residual layers with skip connections to accelerate real-time inference and to accelerate convergence during model training.
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公开(公告)号：WO2021168289A1
公开(公告)日：2021-08-26
申请号：PCT/US2021/018829
申请日：2021-02-19
Applicant: NEC LABORATORIES AMERICA, INC.
Inventor： RAO, Kunal , DROLIA, Utsav , SANKARADAS, Murugan , CHAKRADHAR, Srimat
Abstract: A computer-implemented method for tracing individuals through physical spaces that includes registering (1) cameras in groupings relating a physical space. The method may include performing (3) local video monitoring including outputting frames from the recording of the individuals with the cameras in the groupings, extracting faces from the frames output from the recording, matching faces extracted from the output frames to a watchlist, and assigning tracks to the matched faces based on the cameras in the groupings. The method further includes performing (4) a global monitor including a biometrics monitor for preparing the watchlist of faces, the watchlist of faces being updated when a new face is detected by the cameras in the groupings, and a global movement monitor that combines the outputs from the assigned tracks to the matched faces to launch a report regarding individual population traveling to the physical spaces.
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