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公开(公告)号：US11455802B2
公开(公告)日：2022-09-27
申请号：US16971760
申请日：2018-12-29
Inventor： Yi He , Lei Li , Cheng Yang , Gen Li , Yitan Li
Abstract: A video feature extraction method and device are provided. The method includes extracting one or more frames from a video object to obtain one or more frames of images; stage-by-stage processing each of the one or more frames of images by multi-typed pooling processes to obtain an image feature of the one or more frames of images; and determining a video feature according to the image feature of the one or more frames of images. The multi-typed pooling processes include a maximum pooling process, a minimum pooling process and an average pooling process.
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2.发明授权公开(公告)号：US11842163B2
公开(公告)日：2023-12-12
申请号：US18078747
申请日：2022-12-09
Inventor： Xiaowei Hu , Cheng Yang , Changhu Wang
IPC: G06F40/30 , G06V30/148
CPC classification number: G06F40/30 , G06V30/148
Abstract: Disclosed are a method and apparatus for generating prediction information, and an electronic device and a medium. One embodiment of the method comprises: acquiring at least one input word; generating a word vector of each input word of the at least one input word to obtain a word vector set, wherein the at least one input word is obtained by performing word segmentation on target input text; generating an input text vector on the basis of the word vector set; and on the basis of the input text vector and a user vector, generating prediction information for predicting a user intention, wherein the user vector is obtained on the basis of user historical record information. In this embodiment, prediction information for predicting a user intention is generated, such that the popping up of unnecessary information is reduced. A user can be prevented from being disturbed, thereby improving the user experience.
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Patent Agency Ranking
公开(公告)号：US11593582B2
公开(公告)日：2023-02-28
申请号：US16979784
申请日：2018-12-29
Inventor： Yi He , Lei Li , Cheng Yang , Gen Li , Yitan Li
Abstract: The disclosure is related to a method and device for comparing media features, the method comprising: obtaining first media feature sequences of a first media object and second media feature sequences of a second media object, the first media feature sequence comprises a plurality of first media feature units arranged in sequence, and the second media feature sequence comprises a plurality of second media feature units arranged in sequence; determining unit similarities between the first media feature units and the second media feature units; determining a similarity matrix between the first media feature sequences and the second media feature sequences according to the unit similarities; determining a similarity of the first media object and the second media object according to the similarity matrix.
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公开(公告)号：US11265598B2
公开(公告)日：2022-03-01
申请号：US16958513
申请日：2018-12-29
Inventor： Yi He , Lei Li , Cheng Yang , Gen Li , Yitan Li
IPC: H04N21/44 , H04N21/234
Abstract: The present invention relates to a method and a device for determining a duplicate video, wherein the method comprises: acquiring multiple types of video features of a query video; according to the multiple types of video features of the query video, sequentially comparing a plurality of existing videos respectively to obtain a sequence comparison result; performing a first ranking on the plurality of existing videos according to the sequence comparison result, and taking first n existing videos as first candidate videos according to a result of the first ranking, where n is a positive integer; and determining a duplication level of the query video according to the sequence comparison result of the first candidate videos.
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公开(公告)号：US20210058667A1
公开(公告)日：2021-02-25
申请号：US16958513
申请日：2018-12-29
Inventor： Yi He , Lei Li , Cheng Yang , Gen Li , Yitan Li
IPC: H04N21/44 , H04N21/234
Abstract: The present invention relates to a method and a device for determining a duplicate video, wherein the method comprises: acquiring multiple types of video features of a query video; according to the multiple types of video features of the query video, sequentially comparing a plurality of existing videos respectively to obtain a sequence comparison result; performing a first ranking on the plurality of existing videos according to the sequence comparison result, and taking first n existing videos as first candidate videos according to a result of the first ranking, where n is a positive integer; and determining a duplication level of the query video according to the sequence comparison result of the first candidate videos.
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公开(公告)号：US11055536B2
公开(公告)日：2021-07-06
申请号：US16768527
申请日：2018-12-29
Inventor： Yi He , Lei Li , Cheng Yang , Gen Li , Yitan Li
IPC: G06K9/00
Abstract: A video feature extraction method and device are provided. The method includes extracting one or more frames from a video object to obtain one or more frames of images, obtaining one or more shift vectors for each of the one or more frames of images, using each of the one or more shift vectors, taking any pixel in each of the one or more frames of images as a starting point, determining a terminal point directed by the one or more shift vectors from the starting point, and determining an image feature of the one or more frames of images according to a difference between the starting point and the terminal point, and determining a video feature of the video object according to the image feature of the one or more frames of images.
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公开(公告)号：US20210357673A1
公开(公告)日：2021-11-18
申请号：US16981226
申请日：2018-12-10
Inventor： Cheng Yang , Yi He , Lei Li
Abstract: A method and a device for processing feature points of an image are provided. A specific embodiment of the method includes obtaining an image to be processed; determining weights of the feature points of the image to be processed to obtain a weight set; and according to the weights, selecting target numbered feature points as target feature points of the image to be processed. The weights include a texture weight; the texture weight and a color change scope of pixels in a target sized image region in which the feature points locate are directly proportional. The embodiment can reduce the number of feature points of the image, and further release the storage pressure of feature points regarding the image.
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