公开(公告)号：US09811887B2

公开(公告)日：2017-11-07

申请号：US15069212

申请日：2016-03-14

申请人： SK TELECOM CO., LTD.

发明人： Seungho Shin

IPC分类号： G06T5/00 ,  H04N5/232 ,  G06K9/46 ,  G06K9/62 ,  G06T5/40 ,  G06T7/20 ,  G06T7/238 ,  G06T7/246

CPC分类号： G06T5/003 ,  G06K9/4609 ,  G06K9/4652 ,  G06K9/4661 ,  G06K9/6202 ,  G06T5/40 ,  G06T7/20 ,  G06T7/238 ,  G06T7/246 ,  G06T2207/10024 ,  G06T2207/20021 ,  G06T2207/20201 ,  H04N5/23254 ,  H04N5/23267

摘要： An apparatus for stabilizing an image includes: an image analyzing unit analyzing characteristics of each block to calculate a weight of each block; a significant block extracting unit extracting, from the blocks, a block having a weight larger than a threshold value, as a significant block; a feature point extracting unit extracting a feature point from the significant block by extracting pixels of the significant block and comparing at least one of color and brightness between the pixels and neighboring pixels of the pixels; a local motion vector calculating unit calculating local motion vectors of blocks corresponding to the feature point by referring a previous frame of the frame and estimating a motion of the at least one block; a global motion vector calculating unit calculating a global motion vector based on the calculated at least one local motion vector.

公开(公告)号：US09800780B2

公开(公告)日：2017-10-24

申请号：US14888191

申请日：2014-03-28

申请人： SONY CORPORATION

发明人： Kazuteru Matsumoto

IPC分类号： H04N5/232 ,  G06T3/60 ,  G06T3/00 ,  G06T7/73 ,  G06T7/231 ,  G06T7/238

CPC分类号： H04N5/23229 ,  G06T3/0018 ,  G06T3/60 ,  G06T7/231 ,  G06T7/238 ,  G06T7/73 ,  G06T2207/10016 ,  G06T2207/20021 ,  H04N5/23206

摘要： [Object] To obtain more useful images when images taken using a fisheye lens are used without being remapped.[Solution] Provided is an image processing device including: an image acquisition unit that acquires taken images taken in chronological succession via a fisheye lens; a vector acquisition unit that acquires motion vectors from the taken images; and a point detection unit that detects a point of origin or a point of convergence of the motion vectors.

公开(公告)号：US20240037700A1

公开(公告)日：2024-02-01

申请号：US18379249

申请日：2023-10-12

申请人： TEXAS INSTRUMENTS INCORPORATED

发明人： Mahesh M. Mehendale ,  Ajit Deepak Gupte

IPC分类号： G06T3/40 ,  H04N19/523 ,  G06T7/238 ,  H04N19/43

CPC分类号： G06T3/4007 ,  H04N19/523 ,  G06T7/238 ,  H04N19/43 ,  G06T2207/10016 ,  G06T2207/20021

摘要： The architecture shown can perform global search, local search and local sub pixel search in a parallel or in a pipelined mode. All operations are in a streaming mode without the requirement of external intermediate data storage.

公开(公告)号：US11616968B2

公开(公告)日：2023-03-28

申请号：US17094742

申请日：2020-11-10

申请人： Intel Corporation

发明人： Zhipin Deng ,  Iole Moccagatta ,  Lidong Xu ,  Wenhao Zhang ,  Yi-Jen Chiu

IPC分类号： H04N19/51 ,  G06T7/238 ,  H04N19/57 ,  H04N19/176 ,  H04N19/593

摘要： Techniques related to motion estimation with neighbor block pattern for video coding.

公开(公告)号：US11341750B2

公开(公告)日：2022-05-24

申请号：US16268200

申请日：2019-02-05

申请人： TEXAS INSTRUMENTS INCORPORATED

发明人： Hrushikesh Tukaram Garud ,  Manu Mathew ,  Soyeb Noormohammed Nagori

IPC分类号： G06T7/207 ,  G06V20/56 ,  H04N19/53 ,  G06T7/238 ,  G06T7/269 ,  G06T7/223 ,  G06V10/42 ,  G06V20/40

摘要： An image processing system includes a processor and optical flow (OF) determination logic for quantifying relative motion of a feature present in a first frame of video and a second frame of video that provide at least one of temporally and spatially ordered images with respect to the two frames of video. The OF determination logic configures the processor to implement performing OF estimation between the first frame and second frame using a pyramidal block matching (PBM) method to generate an initial optical flow (OF) estimate at a base pyramid level having integer pixel resolution, and refining the initial OF estimate using at least one pass of a modified Lucas-Kanade (LK) method to provide a revised OF estimate having fractional pixel resolution.

公开(公告)号：US20210201503A1

公开(公告)日：2021-07-01

申请号：US17131045

申请日：2020-12-22

申请人： NEC CORPORATION

发明人： Hayato ITSUMI ,  Florian BEYE ,  Yusuke SHINOHARA ,  Takanori IWAI

IPC分类号： G06T7/215 ,  G06T7/246 ,  G06F16/583 ,  G06T7/238

摘要： The image analysis apparatus includes: a first analysis unit that analyzes image frames by using a first image analysis model; a second analysis unit that can analyze the image frames by using a second image analysis model an analysis accuracy of which is lower; a storage unit that stores therein analyzed frames, which are already analyzed by using the first and second image analysis models, in association with an evaluation value for evaluating a result of an analysis performed with the second image analysis model; an extraction unit that extracts an analyzed frame that satisfies an extraction condition based on the evaluation value; and an update unit that updates the second image analysis model by using a result of an analysis performed with the first image analysis model on the extracted analyzed frame, and a result of an analysis performed with the first image analysis model on a new frame.

公开(公告)号：US20210042941A1

公开(公告)日：2021-02-11

申请号：US16727751

申请日：2019-12-26

申请人： Samsung Electronics Co., Ltd.

发明人： Ruiwen Zhen ,  John W. Glotzbach ,  Hamid R. Sheikh

IPC分类号： G06T7/33 ,  H04N5/235 ,  G06T5/50 ,  G06T5/00 ,  G06T7/207 ,  G06T7/246 ,  G06T7/238 ,  G06T7/215

摘要： A method includes receiving a reference image and a non-reference image; dividing the reference image into a plurality of tiles; determining, using an electronic device, a motion vector map using coarse-to-fine based motion vector estimation; and generating an output frame using the motion vector map with the reference image and the non-reference image.

公开(公告)号：US10755422B2

公开(公告)日：2020-08-25

申请号：US16043169

申请日：2018-07-24

申请人： HTC Corporation

发明人： Yuan-Tung Chen ,  Tzu-Chieh Yu

IPC分类号： G06T7/00 ,  G06T7/238 ,  G06T7/73

摘要： The present disclosure provides a tracking system and method thereof. The tracking system comprises a trackable device with an appearance including a feature pattern and a tracking device. The tracking device comprises an optical sensor module configured to capture a first image which covers the trackable device. The tracking device further comprises a processor coupled to the optical sensor module. The processor is configured to retrieve a region of interest (ROI) of the first image based on the feature pattern, and locate a position of each of a plurality of feature blocks in the ROI, where each feature block contains a portion of the feature pattern. The processor further calculates a pose data of the trackable object according to the positions of the feature blocks.

公开(公告)号：US20230076396A1

公开(公告)日：2023-03-09

申请号：US17798275

申请日：2020-12-25

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Norikatsu YOSHIDA ,  Takeshi HAMASAKI

IPC分类号： H04N5/235 ,  G06T7/215 ,  G06T7/238 ,  G06V10/25

摘要： A shutter speed determination device includes a motion detector and controller. The motion detector, on a block-by-block basis having a specified block size, performs detection processing of a motion vector for image data obtained by capturing a subject image. The controller, while reducing the block size, causes the motion detector to execute the detection processing repeatedly, each time executing the detection processing the controller finds a motion vector related value that changes in a same direction as a direction in which a magnitude of the motion vector changes, the controller determines a shutter speed used when capturing the subject image thereafter, based on the motion vector related value found.

公开(公告)号：US11335018B1

公开(公告)日：2022-05-17

申请号：US17571400

申请日：2022-01-07

申请人： Weihai Innovation Institute, Qingdao University ,  QINGDAO UNIVERSITY ,  Qingdao Point Cloud Intelligent Technology Co., Ltd.

发明人： Weizhong Zhang ,  Zenghui Liu ,  Chi Zhang ,  Hongfeng Zhang ,  Cuimei Yuan ,  Yongpan Li ,  Tianyu Chen

IPC分类号： G06T7/521 ,  G06T5/30 ,  G06T5/00 ,  G06T7/238 ,  G06T7/536

摘要： The present application provides a volumetric measuring method and apparatus based on a TOF depth camera, which is achieved by: acquiring depth images; denoising the depth images; selecting a first feature area of the first depth image and a second feature area of the second depth image that have been denoised respectively, traversing each pixel point in the first feature area at multiple traversal speeds, and matching a first depth value of a current pixel point with a second depth value of a target pixel point corresponding to the current pixel point in the second feature area to acquire multiple total similarity values; determining a traversal speed corresponding to a maximum total similarity value as an instantaneous speed at a current moment; calculating a package volume according to the instantaneous speed. The present application effectively solves the problem that an accurate package volume cannot be obtained when a speed of the conveyor belt is not fixed, and high in feasibility.