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公开(公告)号：US09357130B2
公开(公告)日：2016-05-31
申请号：US13909700
申请日：2013-06-04
Applicant: Apple Inc.
Inventor： Todd Sachs , Marius Tico , Rolf Toft , Paul Hubel , George Williams
CPC classification number: H04N5/23267 , H04N5/23254 , H04N5/23258 , H04N5/2356
Abstract: Techniques are disclosed for selectively capturing, retaining, and combining multiple sub-exposure images or brackets to yield a final image having diminished motion-induced blur and good noise characteristics. More specifically, after or during the capture of N brackets, the M best may be identified for combining into a single output image, (N>M). As used here, the term “best” means those brackets that exhibit the least amount of relative motion with respect to one another—with one caveat: integer pixel shifts may be preferred over sub-pixel shifts.
Abstract translation: 公开了用于选择性地捕获，保留和组合多个次曝光图像或括号以产生具有减小的运动引起的模糊和良好噪声特性的最终图像的技术。 更具体地说，在捕获N个括号之后或期间，可以识别M最佳以组合成单个输出图像（N> M）。 如这里所使用的，术语“最佳”是指相对于彼此表现出最小量的相对运动的括号 - 一个值得注意的是：整数像素偏移可能优于子像素位移。
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公开(公告)号：US09344636B2
公开(公告)日：2016-05-17
申请号：US14292562
申请日：2014-05-30
Applicant: Apple Inc.
Inventor： Marius Tico , Rolf Toft , Paul M. Hubel
CPC classification number: H04N5/2353 , G06T5/50 , G06T2207/10144 , G06T2207/20201 , G06T2207/20221 , H04N5/23277 , H04N5/2355 , H04N5/265
Abstract: Techniques to capture and fuse short- and long-exposure images of a scene from a stabilized image capture device are disclosed. More particularly, the disclosed techniques use not only individual pixel differences between co-captured short- and long-exposure images, but also the spatial structure of occluded regions in the long-exposure images (e.g., areas of the long-exposure image(s) exhibiting blur due to scene object motion). A novel device used to represent this feature of the long-exposure image is a “spatial difference map.” Spatial difference maps may be used to identify pixels in the short- and long-exposure images for fusion and, in one embodiment, may be used to identify pixels from the short-exposure image(s) to filter post-fusion so as to reduce visual discontinuities in the output image.
Abstract translation: 公开了从稳定的图像捕获装置捕捉和融合场景的短曝光和长曝光图像的技术。 更具体地，所公开的技术不仅使用共同拍摄的短曝光图像和长曝光图像之间的单独像素差异，而且使用长曝光图像中的遮挡区域的空间结构（例如，长曝光图像的区域 ）呈现由于场景物体运动造成的模糊）。 用于表示长曝光图像的该特征的新型装置是“空间差异图”。空间差异图可以用于识别用于融合的短曝光图像和长曝光图像中的像素，并且在一个实施例中可以是 用于识别来自短曝光图像的像素以过滤融合后的图像，以减少输出图像中的视觉不连续性。
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公开(公告)号：US09262684B2
公开(公告)日：2016-02-16
申请号：US13911740
申请日：2013-06-06
Applicant: Apple Inc.
Inventor： Marius Tico , Jianping Zhou , Anita Nariani Schulze , Rolf Toft , Paul Hubel , Wei Sun
CPC classification number: G06K9/46 , G06K9/6201 , G06T5/003 , G06T5/10 , G06T2207/10016 , G06T2207/10144 , G06T2207/20016 , G06T2207/20201 , G06T2207/20208 , G06T2207/20221 , H04N5/23267
Abstract: Systems, methods, and computer readable media to improve image stabilization operations are described. Novel approaches for fusing non-reference images with a pre-selected reference frame in a set of commonly captured images are disclosed. The fusing approach may use a soft transition by using a weighted average for ghost/non-ghost pixels to avoid sudden transition between neighborhood and almost similar pixels. Additionally, the ghost/non-ghost decision can be made based on a set of neighboring pixels rather than independently for each pixel. An alternative approach may involve performing a multi-resolution decomposition of all the captured images, using temporal fusion, spatio-temporal fusion, or combinations thereof, at each level and combining the different levels to generate an output image.
Abstract translation: 描述了用于改善图像稳定操作的系统，方法和计算机可读介质。 公开了一组用于将非参考图像与一组普通捕获图像中的预选参考帧融合的新方法。 融合方法可以通过使用重影/非重像素的加权平均值来使用软转换，以避免邻域和几乎相似像素之间的突然过渡。 此外，可以基于一组相邻像素而不是针对每个像素独立地进行重影/非重影决定。 替代方法可以包括在每个级别上使用时间融合，时空融合或其组合执行所有捕获图像的多分辨率分解，并组合不同的级别以生成输出图像。
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4.发明申请VIDEO ROLLING SHUTTER CORRECTION FOR LENS MOVEMENT IN OPTICAL IMAGE STABILIZATION CAMERAS 有权光学图像稳定摄像机镜头运动的视频滚动快门校正公开(公告)号：US20150350550A1
公开(公告)日：2015-12-03
申请号：US14547107
申请日：2014-11-18
Applicant: Apple Inc.
Inventor： Damien J. Thivent , Rolf Toft , Jianping Zhou
CPC classification number: H04N5/23287 , G02B27/646 , H04N5/2254 , H04N5/2257 , H04N5/23274
Abstract: In some embodiments, a method for compensating for lens motion includes estimating a starting position of a lens assembly associated with captured pixel data. The captured pixel data is captured from an image sensor. In some embodiments, the method further includes calculating from the starting position and position data received from the one or more position sensors lens movement associated with the captured pixel data. The lens movement is mapped into pixel movement associated with the captured pixel data. A transform matrix is adjusted to reflect at least the pixel movement. A limit factor associated with the position data is calculated. The captured pixel data is recalculated using the transform matrix and the limit factor.
Abstract translation: 在一些实施例中，用于补偿透镜运动的方法包括估计与捕获的像素数据相关联的透镜组件的起始位置。 从图像传感器捕获捕获的像素数据。 在一些实施例中，该方法还包括从与所捕获的像素数据相关联的一个或多个位置传感器透镜运动接收到的起始位置和位置数据进行计算。 透镜移动被映射到与捕获的像素数据相关联的像素运动。 调整变换矩阵以至少反映像素移动。 计算与位置数据相关联的极限因子。 使用变换矩阵和极限因子重新计算捕获的像素数据。
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公开(公告)号：US20140362256A1
公开(公告)日：2014-12-11
申请号：US13911873
申请日：2013-06-06
Applicant: Apple Inc.
Inventor： Anita Nariani Schulze , Rolf Toft , Paul M. Hubel , Marius Tico , Jianping Zhou , Ralph Brunner , Claus Molgaard
IPC: H04N5/232
CPC classification number: H04N5/23277
Abstract: Systems, methods, and computer readable media to improve image stabilization operations are described. A novel combination of image quality and commonality metrics are used to identify a reference frame from a set of commonly captured images which, when the set's other images are combined with it, results in a quality stabilized image. The disclosed image quality and commonality metrics may also be used to optimize the use of a limited amount of image buffer memory during image capture sequences that return more images that the memory may accommodate at one time. Image quality and commonality metrics may also be used to effect the combination of multiple relatively long-exposure images which, when combined with a one or more final (relatively) short-exposure images, yields images exhibiting motion-induced blurring in interesting and visually pleasing ways.
Abstract translation: 描述了用于改善图像稳定操作的系统，方法和计算机可读介质。 使用图像质量和共性度量的新颖组合来从一组共同拍摄的图像中识别参考帧，当集合的其他图像与其组合时，其导致质量稳定的图像。 公开的图像质量和通用性度量还可以用于在图像捕获序列期间优化使用有限量的图像缓冲存储器，从而可以一次返回存储器可以容纳的更多图像。 图像质量和共性度量也可用于影响多个相对较长曝光图像的组合，当与一个或多个最终（相对）短曝光图像组合时，产生显示运动诱导的模糊的图像，其在有趣和视觉上令人满意 方法。
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Patent Agency Ranking
公开(公告)号：US10432861B2
公开(公告)日：2019-10-01
申请号：US16362253
申请日：2019-03-22
Applicant: Apple Inc.
Inventor： Claus Molgaard , Marius Tico , Rolf Toft , Paul M. Hubel
IPC: H04N5/217 , H04N5/232 , H04N5/235 , G06T5/00 , G06T7/20 , G06T7/254 , H04N5/355 , G06T11/60 , G06T5/50 , H04N5/91 , H04N5/359
Abstract: Techniques to capture and fuse short- and long-exposure images of a scene from a stabilized image capture device are disclosed. More particularly, the disclosed techniques use not only individual pixel differences between co-captured short- and long-exposure images, but also the spatial structure of occluded regions in the long-exposure images (e.g., areas of the long-exposure image(s) exhibiting blur due to scene object motion). A novel device used to represent this feature of the long-exposure image is a “spatial difference map.” Spatial difference maps may be used to identify pixels in the short- and long-exposure images for fusion and, in one embodiment, may be used to identify pixels from the short-exposure image(s) to filter post-fusion so as to reduce visual discontinuities in the output image.
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公开(公告)号：US20170280059A1
公开(公告)日：2017-09-28
申请号：US15457377
申请日：2017-03-13
Applicant: Apple Inc.
Inventor： Damien J. Thivent , George E. Williams , Jianping Zhou , Richard L. Baer , Rolf Toft , Sebastien X. Beysserie
CPC classification number: H04N5/23287 , G06T5/20 , H04N5/2254 , H04N5/23254 , H04N5/23258 , H04N5/23267 , H04N5/2328
Abstract: Techniques to improve a digital image capture device's ability to stabilize a video stream are presented. According to some embodiments, improved stabilization of captured video frames is provided by intelligently harnessing the complementary effects of both optical image stabilization (OIS) and electronic image stabilization (EIS). In particular, OIS may be used to remove intra-frame motion blur that is typically lower in amplitude and dominates with longer integration times, while EIS may be used to remove residual unwanted frame-to-frame motion that is typically larger in amplitude. The techniques disclosed herein may also leverage information provided from the image capture device's OIS system to perform improved motion blur-aware video stabilization strength modulation, which permits better video stabilization performance in low light conditions, where integration times tend to be longer, thus leading to a greater amount of motion blurring in the output stabilized video.
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公开(公告)号：US09384552B2
公开(公告)日：2016-07-05
申请号：US13911793
申请日：2013-06-06
Applicant: Apple Inc.
Inventor： Jianping Zhou , Paul Hubel , Marius Tico , Anita Nariani Schulze , Rolf Toft
IPC: G06T7/00
CPC classification number: G06T7/0028 , G06T7/33 , G06T2207/10016 , G06T2207/20016
Abstract: Systems, methods, and computer readable media to improve image stabilization operations are described. A novel approach to pixel-based registration of non-reference images to a reference frame in a set of commonly captured images is disclosed which makes use of pyramid decomposition to more efficiently detect corners. The disclosed pixel-based registration operation may also be combined with motion sensor data-based registration approaches to register non-reference images with respect to the reference frame. When the registered non-reference images are combined with the pre-selected reference image, the resulting image is a quality stabilized image.
Abstract translation: 描述了用于改善图像稳定操作的系统，方法和计算机可读介质。 公开了一种将非参考图像基于像素的注册到一组共同拍摄的图像中的参考帧的新颖方法，其利用金字塔分解来更有效地检测角落。 所公开的基于像素的注册操作还可以与基于运动传感器数据的注册方法组合以便相对于参考帧来注册非参考图像。 当登记的非参考图像与预先选择的参考图像组合时，所得图像是质量稳定图像。
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公开(公告)号：US09350916B2
公开(公告)日：2016-05-24
申请号：US13903671
申请日：2013-05-28
Applicant: Apple Inc.
Inventor： Russell Pflughaupt , Rolf Toft , Paul Hubel , Anita Nariani Schulze
CPC classification number: H04N5/23267 , G06T5/50 , G06T7/246 , G06T2207/20208 , G06T2207/20221 , H04N5/2355 , H04N5/2356
Abstract: Systems, methods, and computer readable media to improve image stabilization operations and other image processing operations are described. A novel combination of interleaved image capture and image processing operations, e.g., image registration operations, may be employed on a bracketed capture of still images. Such techniques may result in improved camera performance and processing efficiency, as well as decreased shot-to-shot time intervals. In another embodiment, an image fusion portion of an image post-processing pipeline may also be performed in an interleaved fashion, such that each image in the sequence of obtained bracketed images may be incrementally added to an output composite image after it has been aligned with the preceding image or images from the sequence.
Abstract translation: 描述了用于改善图像稳定操作和其他图像处理操作的系统，方法和计算机可读介质。 交织图像捕捉和图像处理操作（例如，图像注册操作）的新颖组合可以用于静止图像的括号捕获。 这样的技术可以导致相机性能和处理效率的提高，并且可以降低镜头到拍摄时间间隔。 在另一个实施例中，图像后处理流水线的图像融合部分也可以以交错方式执行，使得所获得的包围图像的序列中的每个图像可以在与已被对齐的图像对准之后被递增地添加到输出合成图像 先前的图像或序列中的图像。
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公开(公告)号：US20180316864A1
公开(公告)日：2018-11-01
申请号：US16030632
申请日：2018-07-09
Applicant: Apple Inc.
Inventor： Claus Molgaard , Marius Tico , Rolf Toft , Paul M. Hubel
IPC: H04N5/232 , G06T5/00 , G06T5/50 , H04N5/235 , G06T7/20 , H04N5/91 , G06T7/254 , H04N5/355 , G06T11/60 , H04N5/359
CPC classification number: H04N5/23277 , G06T5/002 , G06T5/003 , G06T5/50 , G06T7/20 , G06T7/254 , G06T11/60 , G06T2207/10004 , G06T2207/10144 , G06T2207/20221 , H04N5/23229 , H04N5/23254 , H04N5/23267 , H04N5/2355 , H04N5/2356 , H04N5/35581 , H04N5/3597 , H04N5/91
Abstract: Techniques to capture and fuse short- and long-exposure images of a scene from a stabilized image capture device are disclosed. More particularly, the disclosed techniques use not only individual pixel differences between co-captured short- and long-exposure images, but also the spatial structure of occluded regions in the long-exposure images (e.g., areas of the long-exposure image(s) exhibiting blur due to scene object motion). A novel device used to represent this feature of the long-exposure image is a “spatial difference map.” Spatial difference maps may be used to identify pixels in the short- and long-exposure images for fusion and, in one embodiment, may be used to identify pixels from the short-exposure image(s) to filter post-fusion so as to reduce visual discontinuities in the output image.
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