公开(公告)号：US12094236B2

公开(公告)日：2024-09-17

申请号：US17038528

申请日：2020-09-30

Applicant: Axis AB

Inventor： Markus Skans ,  Christian Colliander ,  Martin Ljungqvist ,  Willie Betschart ,  Niclas Danielsson

IPC: G06V10/80 ,  G06F18/214 ,  G06F18/22 ,  G06N3/045 ,  G06T5/50 ,  G06V10/44 ,  G06V10/764 ,  G06V10/82 ,  G06V20/52 ,  G06V40/00 ,  G06V40/10 ,  G06V40/20

CPC classification number: G06V40/107 ,  G06F18/214 ,  G06F18/22 ,  G06N3/045 ,  G06T5/50 ,  G06V10/44 ,  G06V10/764 ,  G06V10/82 ,  G06V20/52 ,  G06V40/23

Abstract: A method of object re-identification in images of objects comprises providing a plurality of neural networks for object re-identification, wherein each of the plurality of neural networks is trained on image data with different sets of anatomical features, each set being represented by a reference vector; receiving a plurality of images of objects and an input vector representing anatomical features that are depicted in all of the plurality of images; comparing the input vector with the reference vectors for determining, according to a predefined condition, the most similar reference vector; and inputting image data of the plurality of objects to the neural network represented by the most similar reference vector for determining whether the plurality of objects have the same identity.

公开(公告)号：US20160165257A1

公开(公告)日：2016-06-09

申请号：US14952051

申请日：2015-11-25

Applicant: AXIS AB

Inventor： Jiandan Chen ,  Markus Skans ,  Willie Betschart ,  Mikael Pendse ,  Alexandre Martins

IPC: H04N19/503 ,  H04N19/172 ,  H04N19/177

CPC classification number: H04N19/503 ,  H04N19/119 ,  H04N19/124 ,  H04N19/137 ,  H04N19/167 ,  H04N19/17 ,  H04N19/172 ,  H04N19/177 ,  H04N19/61 ,  H04N19/85

Abstract: A method and encoder for video encoding a sequence of frames is provided. The method comprises: receiving a sequence of frames depicting a moving object, predicting a movement of the moving object in the sequence of frames between a first time point and a second time point; defining, on basis of the predicted movement of the moving object, a region of interest (ROI) in the frames which covers the moving object during its entire predicted movement between the first time point and the second time point; and encoding a first frame, corresponding to the first time point, in the ROI and one or more intermediate frames, corresponding to time points being intermediate to the first and the second time point, in at least a subset of the ROI using a common encoding quality pattern defining which encoding quality to use in which portion of the ROI.

Abstract translation: 提供了一种用于帧序列的视频编码的方法和编码器。 该方法包括：接收描绘移动物体的一系列帧，预测在第一时间点和第二时间点之间的帧序列中的移动物体的移动; 基于所述移动物体的预测的移动，在所述第一时间点和所述第二时间点之间的整个预测移动期间，覆盖所述移动物体的所述帧中的感兴趣区域（ROI）; 并且在ROI的至少一个子集中使用公共编码对与ROI对应的第一帧和对应于第一和第二时间点之间的时间点的一个或多个中间帧编码对应于第一时间点的第一帧 质量模式定义了在ROI的哪个部分中使用的编码质量。

公开(公告)号：US09936217B2

公开(公告)日：2018-04-03

申请号：US14952051

申请日：2015-11-25

Applicant: AXIS AB

Inventor： Jiandan Chen ,  Markus Skans ,  Willie Betschart ,  Mikael Pendse ,  Alexandre Martins

IPC: H04N19/503 ,  H04N19/119 ,  H04N19/61 ,  H04N19/124 ,  H04N19/137 ,  H04N19/177 ,  H04N19/17 ,  H04N19/167 ,  H04N19/85 ,  H04N19/172

CPC classification number: H04N19/503 ,  H04N19/119 ,  H04N19/124 ,  H04N19/137 ,  H04N19/167 ,  H04N19/17 ,  H04N19/172 ,  H04N19/177 ,  H04N19/61 ,  H04N19/85

Abstract: A method and encoder for video encoding a sequence of frames is provided. The method comprises: receiving a sequence of frames depicting a moving object, predicting a movement of the moving object in the sequence of frames between a first time point and a second time point; defining, on basis of the predicted movement of the moving object, a region of interest (ROI) in the frames which covers the moving object during its entire predicted movement between the first time point and the second time point; and encoding a first frame, corresponding to the first time point, in the ROI and one or more intermediate frames, corresponding to time points being intermediate to the first and the second time point, in at least a subset of the ROI using a common encoding quality pattern defining which encoding quality to use in which portion of the ROI.