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公开(公告)号：US12158533B2
公开(公告)日：2024-12-03
申请号：US17461457
申请日：2021-08-30
Inventor： Danilo Pietro Pau , Alessandro Cremonesi
Abstract: A device includes a memory and processing circuitry coupled to the memory. The processing circuitry, in operation, generates an indication of a predicted difference in a direction of arrival (DoA) of a signal using a trained autoregressive model. A predicted indication of a DoA of the signal is generated based on a previous indication of the DoA of the signal and the indication of the predicted difference in the DoA of the signal. The processing circuitry actuates or controls an antenna array based on predicted indications of the DoA of the signal.
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公开(公告)号：US10330779B2
公开(公告)日：2019-06-25
申请号：US15692689
申请日：2017-08-31
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Danilo Pietro Pau , Emanuele Plebani
IPC: G01S7/04 , G01S7/484 , G01S17/89 , G01S17/93 , G01S7/48 , G01S7/497 , G01S7/481 , G01S7/486 , G06K9/00 , H05B37/02
Abstract: A laserbeam light source is controlled to avoid light sensitive regions around the laserbeam light source. One or more laserlight-sensitive regions are identified based on images of an area around the laserbeam light source, and indications of positions corresponding to the laserlight-sensitive regions are generated. The laserbeam light source is controlled based on the indications of the positions. The laserbeam light source may be controlled to deflect a laserlight beam away from laserlight-sensitive regions, to reduce an intensity of a laserlight beam directed towards a laserlight-sensitive region, etc. Motion estimation may be used to generate the indications of positions corresponding to the laserlight-sensitive regions.
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公开(公告)号：US09986240B2
公开(公告)日：2018-05-29
申请号：US15395405
申请日：2016-12-30
Applicant: STMICROELECTRONICS S.R.L.
Inventor： Danilo Pietro Pau
IPC: H04N19/115 , H04N19/146 , H04N19/196 , H04N19/172 , G06K9/46
CPC classification number: H04N19/115 , G06F17/30799 , G06K9/4671 , H04L47/12 , H04N19/146 , H04N19/164 , H04N19/17 , H04N19/172 , H04N19/196
Abstract: In an embodiment, digital video frames in a flow are subjected to a method of extraction of features including the operations of: extracting from the video frames respective sequences of pairs of keypoints/descriptors limiting to a threshold value the number of pairs extracted for each frame; sending the sequences extracted from an extractor module to a server for processing with a bitrate value variable in time; receiving the aforesaid bitrate value variable in time at the extractor as target bitrate for extraction; and limiting the number of pairs extracted by the extractor to a threshold value variable in time as a function of the target bitrate.
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4.发明申请METHOD FOR VISUAL SEARCH, CORRESPONDING SYSTEM, APPARATUS AND COMPUTER PROGRAM PRODUCT 审中-公开视觉搜索，对应系统，装置和计算机程序产品的方法公开(公告)号：US20170060904A1
公开(公告)日：2017-03-02
申请号：US15070470
申请日：2016-03-15
Applicant: STMicroelectronics S.r.l.
Inventor： Danilo Pietro Pau , Alioscia Petrelli , Luigi Di Stefano
IPC: G06F17/30
Abstract: Local descriptors are extracted from digital image information and digital depth information related to digital images. The local descriptors convey appearance description information and shape description information related to the digital images. Global representations of the one or more digital images are generated based on the extracted local descriptors, and are hashed. Visual search queries are generated based on the hashed global representations. The visual search queries include fused appearance description information and shape description information conveyed in the local descriptors. The fusing may occur before the global representations are generated, before the hashing or after the hashing.
Abstract translation: 从数字图像信息和与数字图像相关的数字深度信息中提取局部描述符。 本地描述符传达与数字图像相关的外观描述信息和形状描述信息。 基于提取的局部描述符生成一个或多个数字图像的全局表示，并且被散列。 基于散列全局表示生成视觉搜索查询。 视觉搜索查询包括在局部描述符中传达的融合外观描述信息和形状描述信息。 融合可能在生成全局表示之前，散列之前或散列之后发生。
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公开(公告)号：US20140185949A1
公开(公告)日：2014-07-03
申请号：US13762101
申请日：2013-02-07
Applicant: STMicroelectronics S.r.l.
Inventor： Danilo Pietro Pau , Filippo Malaguti , Luigi Distefano , Samuele Salti , Federico Tombari
IPC: H04N19/124 , H04N19/102
CPC classification number: H04N19/124 , G06K9/00523 , G06K9/00671 , G06K9/46 , G06K9/4671 , G06K9/6218 , H04N19/13 , H04N19/91
Abstract: Disclosed embodiments are directed to methods, systems, and circuits of generating compact descriptors for transmission over a communications network. A method according to one embodiment includes receiving an uncompressed descriptor, performing zero-thresholding on the uncompressed descriptor to generate a zero-threshold-delimited descriptor, quantizing the zero-threshold-delimited descriptor to generate a quantized descriptor, and coding the quantized descriptor to generate a compact descriptor for transmission over a communications network. The uncompressed and compact descriptors may be 3D descriptors, such as where the uncompressed descriptor is a SHOT descriptor. The operation of coding can be ZeroFlag coding, ExpGolomb coding, or Arithmetic coding, for example.
Abstract translation: 公开的实施例涉及生成用于通过通信网络传输的紧凑描述符的方法，系统和电路。 根据一个实施例的方法包括接收未压缩描述符，对未压缩描述符执行零阈值以生成零阈值分隔描述符，量化零阈值分隔描述符以生成量化描述符，并将量化描述符编码为 生成用于通过通信网络传输的紧凑描述符。 未压缩和紧凑的描述符可以是3D描述符，诸如未压缩描述符是SHOT描述符的位置。 例如，编码的操作可以是ZeroFlag编码，ExpGolomb编码或算术编码。
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Patent Agency Ranking
公开(公告)号：US11475238B2
公开(公告)日：2022-10-18
申请号：US16752347
申请日：2020-01-24
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Arcangelo Ranieri Bruna , Danilo Pietro Pau
IPC: G06V30/18 , G06T3/00 , G06K9/62 , H04N19/57 , G06T7/33 , G06T7/73 , G06V10/24 , G06V10/40 , G06V10/46
Abstract: An image processing system has one or more memories and image processing circuitry coupled to the one or more memories. The image processing circuitry, in operation, compares a first image to feature data in a comparison image space using a matching model. The comparing includes: unwarping keypoints in keypoint data of the first image; and comparing the unwarped keypoints and descriptor data associated with the first image to the feature data of the comparison image. The image processing circuitry determines whether the first image matches the comparison image based on the comparing.
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公开(公告)号：US10585937B2
公开(公告)日：2020-03-10
申请号：US15070470
申请日：2016-03-15
Applicant: STMicroelectronics S.r.l.
Inventor： Danilo Pietro Pau , Alioscia Petrelli , Luigi Di Stefano
IPC: G06F17/30 , G06F16/583 , G06F16/58
Abstract: Local descriptors are extracted from digital image information and digital depth information related to digital images. The local descriptors convey appearance description information and shape description information related to the digital images. Global representations of the one or more digital images are generated based on the extracted local descriptors, and are hashed. Visual search queries are generated based on the hashed global representations. The visual search queries include fused appearance description information and shape description information conveyed in the local descriptors. The fusing may occur before the global representations are generated, before the hashing or after the hashing.
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8.发明申请公开(公告)号：US20180246188A1
公开(公告)日：2018-08-30
申请号：US15692689
申请日：2017-08-31
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Danilo Pietro Pau , Emanuele PLEBANI
CPC classification number: G01S7/484 , G01S7/48 , G01S7/4814 , G01S7/4868 , G01S7/497 , G01S17/89 , G01S17/936 , G06K9/00255 , G06K9/00362 , G06K9/00617 , G06K9/00791 , H05B37/0227
Abstract: A laserbeam light source is controlled to avoid light sensitive regions around the laserbeam light source. One or more laserlight-sensitive regions are identified based on images of an area around the laserbeam light source, and indications of positions corresponding to the laserlight-sensitive regions are generated. The laserbeam light source is controlled based on the indications of the positions. The laserbeam light source may be controlled to deflect a laserlight beam away from laserlight-sensitive regions, to reduce an intensity of a laserlight beam directed towards a laserlight-sensitive region, etc. Motion estimation may be used to generate the indications of positions corresponding to the laserlight-sensitive regions.
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9.发明授权Method for extracting features from a flow of digital video frames, and corresponding system and computer program product 有权从数字视频帧流中提取特征的方法，以及相应的系统和计算机程序产品公开(公告)号：US09571398B2
公开(公告)日：2017-02-14
申请号：US14080080
申请日：2013-11-14
Applicant: STMicroelectronics S.R.L.
Inventor： Danilo Pietro Pau
IPC: H04L12/801 , H04N19/115 , H04N19/164 , H04N19/17 , G06K9/46 , G06F17/30
CPC classification number: H04N19/115 , G06F17/30799 , G06K9/4671 , H04L47/12 , H04N19/146 , H04N19/164 , H04N19/17 , H04N19/172 , H04N19/196
Abstract: In an embodiment, digital video frames in a flow are subjected to a method of extraction of features including the operations of: extracting from the video frames respective sequences of pairs of keypoints/descriptors limiting to a threshold value the number of pairs extracted for each frame; sending the sequences extracted from an extractor module to a server for processing with a bitrate value variable in time; receiving the aforesaid bitrate value variable in time at the extractor as target bitrate for extraction; and limiting the number of pairs extracted by the extractor to a threshold value variable in time as a function of the target bitrate.
Abstract translation: 在一个实施例中，流程中的数字视频帧经受提取特征的方法，包括以下操作：从视频帧中提取相应的关键点/描述符序列，限制阈值，为每个帧提取的对数 ; 将从提取器模块提取的序列发送到服务器，以便在时间上以比特率值变量进行处理; 以提取器的时间接收上述比特率值变量作为提取的目标比特率; 并且将提取器提取的对数量作为目标比特率的函数在时间上限制为阈值变量。
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10.发明授权Systems, circuits, and methods for efficient hierarchical object recognition based on clustered invariant features 有权基于聚类不变特征的有效分层对象识别的系统，电路和方法公开(公告)号：US09204112B2
公开(公告)日：2015-12-01
申请号：US13762267
申请日：2013-02-07
Applicant: STMicroelectronics S.r.l
Inventor： Paolo Pasteris , Giovanni Condello , Danilo Pietro Pau
CPC classification number: H04N19/124 , G06K9/00523 , G06K9/00671 , G06K9/46 , G06K9/4671 , G06K9/6218 , H04N19/13 , H04N19/91
Abstract: One embodiment is a method for selecting and grouping key points extracted by applying a feature detector on a scene being analyzed. The method includes grouping the extracted key points into clusters that enforce a geometric relation between members of a cluster, scoring and sorting the clusters, identifying and discarding clusters that are comprised of points which represent the background noise of the image, and sub-sampling the remaining clusters to provide a smaller number of key points for the scene.
Abstract translation: 一个实施例是一种用于选择和分组通过在正在分析的场景上应用特征检测器而提取的关键点的分组的方法。 该方法包括将所提取的关键点分组成强制簇的成员之间的几何关系，对聚类进行评分和排序，识别和丢弃由表示图像的背景噪声的点组成的簇，并对 剩余的群集为场景提供较少数量的关键点。
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