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公开(公告)号：US20180091743A1
公开(公告)日：2018-03-29
申请号：US15275130
申请日：2016-09-23
Applicant: Apple Inc.
Inventor： Arwen V. Bradley , Samuel G. Noble , Rudolph van der Merwe , Jason Klivington , Douglas P. Mitchell , Nikhil Singh , Joseph M. Triscari
CPC classification number: H04N5/2621 , G06T7/0002 , G06T13/80 , G06T2207/10016 , G06T2207/30168 , H04N5/23245 , H04N5/23254 , H04N5/23267
Abstract: Techniques and devices for creating an AutoLoop output video include performing postgate operations. The AutoLoop output video is created from a set of frames. After generating the AutoLoop output video based on a plurality of loop parameters and at least a portion of the frames, postgate operations determine one or more dynamism metrics based on a variability metric and a dynamic range metric for a plurality of pixels within the video loop. Postgate operations compare the dynamism metrics to one or more postgate threshold values and reject the video loop based on the comparison of the dynamism metrics to the postgate threshold values.
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公开(公告)号：US20180090172A1
公开(公告)日：2018-03-29
申请号：US15275120
申请日：2016-09-23
Applicant: Apple Inc.
Inventor： Arwen V. Bradley , Samuel G. Noble , Rudolph van der Merwe , Jason Klivington , Douglas P. Mitchell
IPC: G11B27/00 , G11B27/034 , G11B27/19 , H04N5/783 , G11B27/34
CPC classification number: G11B27/007 , G11B27/034 , G11B27/19 , G11B27/34 , H04N5/76
Abstract: Techniques and devices for creating an AutoLoop output video include performing pregate operations. The AutoLoop output video is created from a set of frames. Prior to creating the AutoLoop output video, the set of frames are automatically analyzed to identify one or more image features that are indicative of whether the image content in the set of frames is compatible with creating a video loop. Pregate operations assign one or more pregate scores for the set of frames based on the one or more identified image features, where the pregate scores indicate a compatibility to create the video loop based on the identified image features. Pregate operations automatically determine to create the video loop based on the pregate scores and generate an output video loop based on the loop parameters and at least a portion of the set of frames.
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公开(公告)号：US20180090171A1
公开(公告)日：2018-03-29
申请号：US15275105
申请日：2016-09-23
Applicant: Apple Inc.
Inventor： Arwen V. Bradley , Samuel G. Noble , Rudolph van der Merwe , Jason Klivington , Douglas P. Mitchell
IPC: G11B27/00 , G11B27/034 , G11B27/19 , H04N5/783 , G11B27/34
CPC classification number: G11B27/007 , G11B27/034 , G11B27/19 , G11B27/34 , H04N5/76
Abstract: Techniques and devices for creating an AutoLoop output video include identifying optimal loops within short videos or within a series of image. The AutoLoop output video may be automatically created using casually shot, handheld videos, and may include an AutoLoop pipeline that may comprise obtaining an input video, stabilizing the input video, detecting optimal loop parameters and baking out the AutoLoop output video with crossfade and playing back the AutoLoop output video. Video stabilization can include a cascade of video stabilization algorithms including a tripod-direct mode and a tripod-sequential mode. After stabilization, an AutoLoop operation may determine optimal loop parameters. Once optimal loop parameters are determined, a crossfade may be added to smooth out any temporal and spatial discontinuities in the AutoLoop output video.
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公开(公告)号：US09706123B2
公开(公告)日：2017-07-11
申请号：US15218405
申请日：2016-07-25
Applicant: Apple Inc.
Inventor： Sebastien X. Beysserie , Damien J. Thivent , Jianping Zhou , Rudolph van der Merwe , Jason Klivington , Xiaoxing Li , Anders Holtsberg , Martin Lindberg , George E. Williams
CPC classification number: H04N5/23267 , G06T5/003 , G06T2207/10016 , G06T2207/20201 , H04N5/23254
Abstract: Techniques to permit a digital image capture device to stabilize a video stream in real-time (during video capture operations) are presented. In general, techniques are disclosed for stabilizing video images using an overscan region and a look-ahead technique enabled by buffering a number of video input frames before generating a first stabilized video output frame. (Capturing a larger image than is displayed creates a buffer of pixels around the edge of an image; overscan is the term given to this buffer of pixels.) More particularly, techniques are disclosed for buffering an initial number of input frames so that a “current” frame can use motion data from both “past” and “future” frames to adjust the strength of a stabilization metric value so as to keep the current frame within its overscan. This look-ahead and look-behind capability permits a smoother stabilizing regime with fewer abrupt adjustments.
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公开(公告)号：US09679414B2
公开(公告)日：2017-06-13
申请号：US13783082
申请日：2013-03-01
Applicant: Apple Inc.
Inventor： Christopher G. Nicholas , Lukas M. Marti , Rudolph van der Merwe , John Kassebaum
CPC classification number: G06T19/006 , G06F3/011
Abstract: A user interface enables a user to calibrate the position of a three dimensional model with a real-world environment represented by that model. Using a device's sensor suite, the device's location and orientation is determined. A video image of the device's environment is displayed on the device's display. The device overlays a representation of an object from a virtual reality model on the video image. The position of the overlaid representation is determined based on the device's location and orientation. In response to user input, the device adjusts a position of the overlaid representation relative to the video image.
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Patent Agency Ranking
公开(公告)号：US20140362240A1
公开(公告)日：2014-12-11
申请号：US14049118
申请日：2013-10-08
Applicant: Apple Inc.
Inventor： Jason Klivington , Rudolph van der Merwe
IPC: H04N5/232
CPC classification number: H04N5/23267 , G06T5/002 , G06T5/003 , G06T5/50 , G06T7/248 , G06T7/262 , G06T7/285 , H04N5/23254
Abstract: A method of removing unwanted camera motion from a video sequence is provided. The method matches a group of feature points between each pair of consecutive video frames in the video sequence. The method calculates the motion of each matched feature point between the corresponding pair of consecutive video frames. The method calculates a set of historical metrics for each feature point. The method, for each pair of consecutive video frames, identifies a homography that defines a dominant motion between the pair of consecutive frames. The homography is identified by performing a geometrically biased historically weighted RANSAC on the calculated motion of the feature points. The geometrically biased historically weighted RANSAC gives a weight to the calculated motion of each feature point based on the historical metrics calculated for the feature point. The method removes he unwanted camera motion from the video sequence using the identified homographies.
Abstract translation: 提供从视频序列中去除不想要的相机运动的方法。 该方法匹配视频序列中每对连续视频帧之间的一组特征点。 该方法计算相应的一对连续视频帧之间的每个匹配特征点的运动。 该方法计算每个特征点的一组历史度量。 对于每对连续的视频帧，该方法识别定义一对连续帧之间的主要运动的单应性。 通过对特征点的计算运动执行几何偏置的历史加权RANSAC来识别单应性。 几何偏差的历史加权RANSAC根据为特征点计算的历史指标给出每个特征点的计算运动的权重。 该方法使用识别的同形异物从视频序列中移除他不想要的相机运动。
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公开(公告)号：US08905314B2
公开(公告)日：2014-12-09
申请号：US13658765
申请日：2012-10-23
Applicant: Apple Inc.
Inventor： Rudolph van der Merwe , Samuel Gordon Noble , Ralph Brunner
CPC classification number: G06K7/1447 , G06K7/10811 , G06K7/1443
Abstract: A barcode decoding system and method are disclosed that use a data-driven classifier for transforming a potentially degraded barcode signal into a digit sequence. The disclosed implementations are robust to signal degradation through incorporation of a noise model into the classifier construction phase. The run-time computational cost is low, allowing for efficient implementations on portable devices. Implementations are disclosed for intelligent preview scaling, barcode-aware autofocus augmentation and multi-scale signal feature extraction.
Abstract translation: 公开了一种使用数据驱动分类器将潜在恶化的条形码信号变换为数字序列的条形码解码系统和方法。 所公开的实施方式通过将噪声模型并入分类器构造阶段来稳健地信号劣化。 运行时计算成本低，允许在便携式设备上进行有效的实施。 公开了实现智能预览缩放，条形码识别自动对焦增强和多尺度信号特征提取。
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公开(公告)号：US11532136B2
公开(公告)日：2022-12-20
申请号：US17138303
申请日：2020-12-30
Applicant: Apple Inc.
Inventor： Christopher G. Nicholas , Lukas M. Marti , Rudolph van der Merwe , John Kassebaum
Abstract: A user interface enables a user to calibrate the position of a three dimensional model with a real-world environment represented by that model. Using a device's sensor, the device's location and orientation is determined. A video image of the device's environment is displayed on the device's display. The device overlays a representation of an object from a virtual reality model on the video image. The position of the overlaid representation is determined based on the device's location and orientation. In response to user input, the device adjusts a position of the overlaid representation relative to the video image.
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公开(公告)号：US10062410B2
公开(公告)日：2018-08-28
申请号：US15275120
申请日：2016-09-23
Applicant: Apple Inc.
Inventor： Arwen V. Bradley , Samuel G. Noble , Rudolph van der Merwe , Jason Klivington , Douglas P. Mitchell , Joseph M. Triscari
CPC classification number: G11B27/007 , G11B27/034 , G11B27/19 , G11B27/34 , H04N5/76
Abstract: Techniques and devices for creating an AutoLoop output video include performing pregate operations. The AutoLoop output video is created from a set of frames. Prior to creating the AutoLoop output video, the set of frames are automatically analyzed to identify one or more image features that are indicative of whether the image content in the set of frames is compatible with creating a video loop. Pregate operations assign one or more pregate scores for the set of frames based on the one or more identified image features, where the pregate scores indicate a compatibility to create the video loop based on the identified image features. Pregate operations automatically determine to create the video loop based on the pregate scores and generate an output video loop based on the loop parameters and at least a portion of the set of frames.
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公开(公告)号：US09934818B1
公开(公告)日：2018-04-03
申请号：US15275146
申请日：2016-09-23
Applicant: Apple Inc.
Inventor： Arwen V. Bradley , Samuel G. Noble , Rudolph van der Merwe , Jason Klivington , Douglas P. Mitchell , Duncan Robert Kerr
CPC classification number: G11B27/007 , G11B27/034 , G11B27/34 , H04N5/76
Abstract: Techniques and devices for creating an AutoLoop output video by adding synthetic camera motion to the AutoLoop output video. The AutoLoop output video is created from a set of frames. After generating the AutoLoop output video based on a plurality of loop parameters and at least a portion of the frames, synthetic camera motion is combined with the AutoLoop output video. The synthetic camera loop is based on the subset of the input frames and exhibits some amount of camera motion for the subset of the input frames. Once the synthetic camera loop is generated, the synthetic camera loop and the video loop is combined to enhance the AutoLoop output video.
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