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公开(公告)号：US20250008132A1
公开(公告)日：2025-01-02
申请号：US18755150
申请日：2024-06-26
Applicant: NEC Laboratories America, Inc.
Inventor： Biplob Debnath , Deep Patel , Srimat Chakradhar , Christoph Reich
IPC: H04N19/33 , H04N19/124 , H04N19/176 , H04N19/186 , H04N19/625
Abstract: Systems and methods are provided for encoding and decoding images using differentiable JPEG compression, including converting images from RGB color space to YCbCr color space to obtain a luminance and chrominance channels, and applying chroma subsampling to the chrominance channels to reduce resolution. The YCbCr image is divided into pixel blocks and a DCT is performed on the pixel blocks to obtain DCT coefficients. DCT coefficients are quantized using a scaled quantization table to reduce precision, and quantized DCT coefficients are encoded using lossless entropy coding, forming a compressed JPEG file decoded by reversing the lossless entropy coding to obtain quantized DCT coefficients, which are dequantized using the scaled quantization table to restore the precision. The dequantized DCT coefficients are converted back to a spatial domain using an IDCT, the chrominance channels are upsampled to original resolution, and the YCbCr image is converted back to the RGB color space.
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公开(公告)号：US11847510B2
公开(公告)日：2023-12-19
申请号：US17964170
申请日：2022-10-12
Applicant: NEC Laboratories America, Inc.
Inventor： Giuseppe Coviello , Kunal Rao , Biplob Debnath , Srimat Chakradhar
Abstract: A method for implementing application self-optimization in serverless edge computing environments is presented. The method includes requesting deployment of an application pipeline on data received from a plurality of sensors, the application pipeline including a plurality of microservices, enabling communication between a plurality of pods and a plurality of analytics units (AUs), each pod of the plurality of pods including a sidecar, determining whether each of the plurality of AUs maintains any state to differentiate between stateful AUs and stateless AUs, scaling the stateful AUs and the stateless AUs, enabling communication directly between the sidecars of the plurality of pods, and reusing and resharing common AUs of the plurality of AUs across different applications.
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公开(公告)号：US20230237805A1
公开(公告)日：2023-07-27
申请号：US18157915
申请日：2023-01-23
Applicant: NEC Laboratories America, Inc.
Inventor： Biplob Debnath , Oliver Po , Srimat Chakradhar
IPC: G06V20/56 , G06V20/40 , G06V10/74 , G06V10/764 , B60W30/09
CPC classification number: G06V20/56 , B60W30/09 , G06V10/761 , G06V10/764 , G06V20/46
Abstract: A computer-implemented method is provided. The method includes classifying a video clip of consecutive video frames into one of predefined new classes in relation to a base training set class. The method further includes controlling a system of a motor vehicle for accident avoidance responsive to the one of the predefined classes indicating an impending collision. The classifying step includes extracting video frame features from the video clip. The classifying step further includes aggregating the video frame features of the consecutive video frames into a single frame feature to form a video level feature presentation. The classifying step also includes mapping, by a distance-based classifier, the video level feature presentation into a classification prediction based on cosine similarity.
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公开(公告)号：US11423262B2
公开(公告)日：2022-08-23
申请号：US16522711
申请日：2019-07-26
Applicant: NEC Laboratories America, Inc.
Inventor： Biplob Debnath , Debayan Deb , Srimat Chakradhar
Abstract: A method is provided for classifying objects. The method detects objects in one or more images. The method tags each object with multiple features. Each feature describes a specific object attribute and has a range of values to assist with a determination of an overall quality of the one or more images. The method specifies a set of training examples by classifying the overall quality of at least some of the objects as being of an acceptable quality or an unacceptable quality, based on a user's domain knowledge about an application program that takes the objects as inputs. The method constructs a plurality of first-level classifiers using the set of training examples. The method constructs a second-level classifier from outputs of the first-level automatic classifiers. The second-level classifier is for providing a classification for at least some of the objects of either the acceptable quality or the unacceptable quality.
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公开(公告)号：US10929765B2
公开(公告)日：2021-02-23
申请号：US15678751
申请日：2017-08-16
Applicant: NEC Laboratories America, Inc.
Inventor： Biplob Debnath , Hui Zhang , Jianwu Xu , Nipun Arora , Guofei Jiang , Bo Zong
Abstract: A computer-implemented method for automatically analyzing log contents received via a network and detecting content-level anomalies is presented. The computer-implemented method includes building a statistical model based on contents of a set of training logs and detecting, based on the set of training logs, content-level anomalies for a set of testing logs. The method further includes maintaining an index and metadata, generating attributes for fields, editing model capability to incorporate user domain knowledge, detecting anomalies using field attributes, and improving anomaly quality by using user feedback.
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Patent Agency Ranking
公开(公告)号：US10740212B2
公开(公告)日：2020-08-11
申请号：US15970398
申请日：2018-05-03
Applicant: NEC Laboratories America, Inc.
Inventor： Biplob Debnath , Hui Zhang , Erik Kruus
Abstract: Systems and methods for implementing content-level anomaly detection for devices having limited memory are provided. At least one log content model is generated based on training log content of training logs obtained from one or more sources associated with the computer system. The at least one log content model is transformed into at least one modified log content model to limit memory usage. Anomaly detection is performed for testing log content of testing logs obtained from one or more sources associated with the computer system based on the at least one modified log content model. In response to the anomaly detection identifying one or more anomalies associated with the testing log content, the one or more anomalies are output.
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公开(公告)号：US10740170B2
公开(公告)日：2020-08-11
申请号：US15830579
申请日：2017-12-04
Applicant: NEC Laboratories America, Inc.
Inventor： Biplob Debnath , Hui Zhang , Guofei Jiang
Abstract: A computer-implemented method, computer program product, and computer processing system are provided. The method includes preprocessing, by a processor, a set of heterogeneous logs by splitting each of the logs into tokens to obtain preprocessed logs. Each of the logs in the set is associated with a timestamp and textual content in one or more fields. The method further includes generating, by the processor, a set of regular expressions from the preprocessed logs. The method also includes performing, by the processor, an unsupervised parsing operation by applying the regular expressions to the preprocessed logs to obtain a set of parsed logs and a set of unparsed logs, if any. The method additionally includes storing, by the processor, the set of parsed logs in a log analytics database and the set of unparsed logs in a debugging database.
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公开(公告)号：US20170139806A1
公开(公告)日：2017-05-18
申请号：US15352546
申请日：2016-11-15
Applicant: NEC Laboratories America, Inc.
Inventor： Jianwu Xu , Biplob Debnath , Hui Zhang , Guofei Jiang , Nipun Arora
IPC: G06F11/36
CPC classification number: G06F11/3612 , G06F11/0706 , G06F11/0766 , G06F11/3636
Abstract: Systems and methods are disclosed for handling log data from one or more applications, sensors or instruments by receiving heterogeneous logs from arbitrary/unknown systems or applications; generating regular expression patterns from the heterogeneous log sources using machine learning and extracting a log pattern therefrom; generating models and profiles from training logs based on different conditions and updating a global model database storing all models generated over time; tokenizing raw log messages from one or more applications, sensors or instruments running a production system; transforming incoming tokenized streams are into data-objects for anomaly detection and forwarding of log messages to various anomaly detectors; and generating an anomaly alert from the one or more applications, sensors or instruments running a production system.
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公开(公告)号：US12050664B2
公开(公告)日：2024-07-30
申请号：US17494979
申请日：2021-10-06
Applicant: NEC Laboratories America, Inc.
Inventor： Murugan Sankaradas , Kunal Rao , Yi Yang , Biplob Debnath , Utsav Drolia , Srimat Chakradhar , Amit Redkar , Ravi Kailasam Rajendran
CPC classification number: G06F18/253 , G06F18/2148 , G06N3/045 , G06T7/50 , G06T11/00 , G06V10/40 , G06V20/00 , G06T2207/20081 , G06T2207/20084 , G06T2207/20221 , G06T2210/12
Abstract: A method for real-time cross-spectral object association and depth estimation is presented. The method includes synthesizing, 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 a feature-preserving loss function resulting in real-time pairing of corresponding cross-spectral objects, and applying 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：US20230153182A1
公开(公告)日：2023-05-18
申请号：US17964170
申请日：2022-10-12
Applicant: NEC Laboratories America, Inc.
Inventor： Giuseppe Coviello , Kunal Rao , Biplob Debnath , Srimat Chakradhar
Abstract: A method for implementing application self-optimization in serverless edge computing environments is presented. The method includes requesting deployment of an application pipeline on data received from a plurality of sensors, the application pipeline including a plurality of microservices, enabling communication between a plurality of pods and a plurality of analytics units (AUs), each pod of the plurality of pods including a sidecar, determining whether each of the plurality of AUs maintains any state to differentiate between stateful AUs and stateless AUs, scaling the stateful AUs and the stateless AUs, enabling communication directly between the sidecars of the plurality of pods, and reusing and resharing common AUs of the plurality of AUs across different applications.
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