公开(公告)号：US10904586B2

公开(公告)日：2021-01-26

申请号：US16615366

申请日：2017-12-13

Applicant: Google LLC

Inventor： Filip Pavetic ,  Hanna Pasula

IPC: H04N21/234 ,  G06F16/783 ,  G06F21/10

Abstract: Methods, systems, and media for detecting and transforming rotated video content items are provided. The method comprises: receiving a video having a plurality of frames, wherein the video is associated with a first fingerprint; determining a rotation value associated with at least a portion of the plurality of frames to obtain a plurality of rotation values; determining an overall rotation value associated with the video based on a portion of the plurality of rotation values; determining whether at least one additional fingerprint of the video should be generated based on the overall rotation value; in response to determining that the at least one additional fingerprint of the video should be generated based on the overall rotation value, selecting a rotation transform based on the overall rotation value that rotates the plurality of frames of the video to an initial rotation position; applying the rotation transform to at least a portion of the plurality of frames of the video; generating a second fingerprint that represents the transformed video; and comparing the second fingerprint of the transformed video to a plurality of fingerprints associated with reference videos to determine whether the video corresponding to the transformed video matches one of the reference videos.

公开(公告)号：US20180232845A1

公开(公告)日：2018-08-16

申请号：US15949424

申请日：2018-04-10

Applicant: GOOGLE LLC

Inventor： Filip Pavetic ,  Matthias Rochus Konrad ,  Hanna Pasula

IPC: G06T1/00 ,  G06T7/20 ,  G06K9/62 ,  G06K9/46

CPC classification number: G06T1/0021 ,  G06F21/10 ,  G06K9/00744 ,  G06K9/4604 ,  G06K9/6202 ,  G06T7/11 ,  G06T7/20 ,  G06T7/90 ,  G06T2207/10016 ,  G06T2207/10024 ,  H04N21/23418 ,  H04N21/2541 ,  H04N21/2743 ,  H04N21/8352

Abstract: Fingerprinting a video including video frames is disclosed. A method includes receiving the video, generating sub-images, generating sub-fingerprints for the video using the sub-images, and matching the video to a reference video using the sub-fingerprints. Generating sub-images includes, for a video frame of some of the video frames, generating a binary image for the video frame, identifying a first region of the binary image, and identifying a sub-image of the video frame that is co-extensive and co-located with the first region of the binary image. A pixel of the video frame is identified in the binary image by a first value or a second value where the first value indicates a motion pixel and the second value indicates a still pixel. The first region includes more of the first value than the second value, and the first region is indicative of a motion in the video frame.

公开(公告)号：US20200162770A1

公开(公告)日：2020-05-21

申请号：US16615366

申请日：2017-12-13

Applicant: Google LLC

Inventor： Filip Pavetic ,  Hanna Pasula

IPC: H04N21/234 ,  G06F21/10 ,  G06F16/783

Abstract: Methods, systems, and media for detecting and transforming rotated video content items are provided. The method comprises: receiving a video having a plurality of frames, wherein the video is associated with a first fingerprint; determining a rotation value associated with at least a portion of the plurality of frames to obtain a plurality of rotation values; determining an overall rotation value associated with the video based on a portion of the plurality of rotation values; determining whether at least one additional fingerprint of the video should be generated based on the overall rotation value; in response to determining that the at least one additional fingerprint of the video should be generated based on the overall rotation value, selecting a rotation transform based on the overall rotation value that rotates the plurality of frames of the video to an initial rotation position; applying the rotation transform to at least a portion of the plurality of frames of the video; generating a second fingerprint that represents the transformed video; and comparing the second fingerprint of the transformed video to a plurality of fingerprints associated with reference videos to determine whether the video corresponding to the transformed video matches one of the reference videos.