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公开(公告)号：US20170134639A1
公开(公告)日：2017-05-11
申请号：US15207110
申请日：2016-07-11
Applicant: Lytro, Inc.
Inventor： Colvin Pitts , Yi-Ren Ng
CPC classification number: H04N5/23212 , G02B27/0075 , G06T5/002 , G06T5/003 , G06T5/20 , G06T5/50 , G06T2200/24 , G06T2207/20092 , G06T2207/20104 , G06T2207/20108 , H01L27/14627 , H04N13/207
Abstract: A video refocusing system operates in connection with refocusable video data, information, images and/or frames, which may be light field video data, information, images and/or frames, that may be focused and/or refocused after acquisition or recording. A video acquisition device acquires first refocusable light field video data of a scene, stores first refocusable video data representative of the first refocusable light field video data, acquires second refocusable light field video data of the scene after acquiring the first refocusable light field video data, determines a first virtual focus parameter (such as a virtual focus depth) using the second refocusable light field video data, generates first video data using the stored first refocusable video data and the first virtual focus parameter, wherein the first video data includes a focus depth that is different from an optical focus depth of the first refocusable light field video data, and outputs the first video data.
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公开(公告)号：US09530195B2
公开(公告)日：2016-12-27
申请号：US14022651
申请日：2013-09-10
Applicant: Lytro, Inc.
Inventor： Yi-Ren Ng
IPC: G06T5/50 , G06T5/00 , H01L27/146 , G02B27/00 , G06T5/20
CPC classification number: G06T5/50 , G02B27/0075 , G06T5/002 , G06T5/003 , G06T5/20 , G06T2200/24 , G06T2207/20092 , G06T2207/20104 , G06T2207/20108 , H01L27/14627
Abstract: A method is performed to refocus a digital photographic image comprising a plurality of pixels. In the method, a set of images is computed corresponding to the digital photographic image and focused at different depths. Refocus depths for at least a subset of the pixels are identified and stored in a look-up table. At least a portion of the digital photographic image is refocused at a desired refocus depth determined from the look-up table.
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3.发明授权公开(公告)号：US09172853B2
公开(公告)日：2015-10-27
申请号：US14456132
申请日：2014-08-11
Applicant: Lytro, Inc.
Inventor： Colvin Pitts , Timothy James Knight , Chia-Kai Liang , Yi-Ren Ng
CPC classification number: H04N5/217 , G02B3/0056 , G02B27/0018 , G02B27/0075 , H04N5/211 , H04N5/2254 , H04N17/002
Abstract: Light-field image data is processed in a manner that reduces projection artifacts in the presence of variation in microlens position by calibrating microlens positions. Approximate centers of disks in a light-field image are identified, and gridded calibration is performed, by fitting lines to disk centers along orthogonal directions, and then fitting a rigid grid to the light-field image. For each grid region, a corresponding disk center is computed, and a displacement vector is generated. For each grid region, the final disk center is computed as the vector sum of the grid region's geometric center and displacement vector. Calibration data, including displacement vectors, is then used in calibrating disk centers for more accurate projection of light-field images. In at least one embodiment, the imaging geometry is arranged so that disks are separated by a gap, so as to limit or eliminate ghosting.
Abstract translation: 以通过校准微透镜位置在存在微透镜位置的变化的情况下减少投影伪影的方式处理光场图像数据。 识别光场图像中的光盘近似中心，并通过沿着正交方向将线拟合到磁盘中心，然后将刚性网格装配到光场图像来执行网格校准。 对于每个网格区域，计算相应的磁盘中心，并生成位移矢量。 对于每个网格区域，最终的磁盘中心被计算为网格区域的几何中心和位移向量的向量和。 然后使用校准数据（包括位移矢量）来校准磁盘中心，以更准确地投射光场图像。 在至少一个实施例中，成像几何被布置成使得盘被间隙分开，以便限制或消除重影。
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4.发明申请COMPENSATING FOR SENSOR SATURATION AND MICROLENS MODULATION DURING LIGHT-FIELD IMAGE PROCESSING 有权光场图像处理期间的传感器饱和度和微调调制补偿公开(公告)号：US20150097985A1
公开(公告)日：2015-04-09
申请号：US14571103
申请日：2014-12-15
Applicant: Lytro, Inc.
Inventor： Kurt Barton Akeley , Brian Cabral , Colvin Pitts , Chia-Kai Liang , Bennett Wilburn , Timothy James Knight , Yi-Ren Ng
Abstract: According to various embodiments, the system and method of the present invention process light-field image data so as to reduce color artifacts, reduce projection artifacts, and/or increase dynamic range. These techniques operate, for example, on image data affected by sensor saturation and/or microlens modulation. Flat-field images are captured and converted to modulation images, and then applied on a per-pixel basis, according to techniques described herein.
Abstract translation: 根据各种实施例，本发明的系统和方法处理光场图像数据，以便减少颜色伪影，减少投影伪影和/或增加动态范围。 这些技术例如对传感器饱和度和/或微透镜调制影响的图像数据进行操作。 根据本文所述的技术，平场图像被捕获并转换成调制图像，然后以每像素为基础进行应用。
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公开(公告)号：US08976288B2
公开(公告)日：2015-03-10
申请号：US14244484
申请日：2014-04-03
Applicant: Lytro, Inc.
Inventor： Yi-Ren Ng , Colvin Pitts , Timothy Knight
CPC classification number: H04N5/2254 , G02B7/282 , G02B27/0075 , G06T2200/21 , G06T2207/10052 , H04N5/225 , H04N5/23212
Abstract: A light field data acquisition device includes optics and a light field sensor to acquire light field image data of a scene. In at least one embodiment, the light field sensor is located at a substantially fixed, predetermined distance relative to the focal point of the optics. In response to user input, the light field acquires the light field image data of the scene, and a storage device stores the acquired data. Such acquired data can subsequently be used to generate a plurality of images of the scene using different virtual focus depths.
Abstract translation: 光场数据采集装置包括用于获取场景的光场图像数据的光学器件和光场传感器。 在至少一个实施例中，光场传感器相对于光学器件的焦点位于基本上固定的预定距离处。 响应于用户输入，光场获取场景的光场图像数据，并且存储装置存储获取的数据。 随后可以使用这样获取的数据来使用不同的虚拟聚焦深度来生成场景的多个图像。
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Patent Agency Ranking
6.发明授权Compensating for sensor saturation and microlens modulation during light-field image processing 有权在光场图像处理期间补偿传感器饱和度和微透镜调制公开(公告)号：US08948545B2
公开(公告)日：2015-02-03
申请号：US13774925
申请日：2013-02-22
Applicant: Lytro, Inc.
Inventor： Kurt Barton Akeley , Brian Cabral , Colvin Pitts , Chia-Kai Liang , Bennett Wilburn , Timothy James Knight , Yi-Ren Ng
Abstract: According to various embodiments, the system and method of the present invention process light-field image data so as to reduce color artifacts, reduce projection artifacts, and/or increase dynamic range. These techniques operate, for example, on image data affected by sensor saturation and/or microlens modulation. Flat-field images are captured and converted to modulation images, and then applied on a per-pixel basis, according to techniques described herein.
Abstract translation: 根据各种实施例，本发明的系统和方法处理光场图像数据，以便减少颜色伪影，减少投影伪影和/或增加动态范围。 这些技术例如对传感器饱和度和/或微透镜调制影响的图像数据进行操作。 根据本文所述的技术，平场图像被捕获并转换成调制图像，然后以每像素为基础进行应用。
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公开(公告)号：US20140240463A1
公开(公告)日：2014-08-28
申请号：US14273349
申请日：2014-05-08
Applicant: Lytro, Inc.
Inventor： Colvin Pitts , Yi-Ren Ng
CPC classification number: H04N13/207 , H04N5/23212 , H04N7/01
Abstract: A video refocusing system operates in connection with refocusable video data, information, images and/or frames, which may be light field video data, information, images and/or frames, that may be focused and/or refocused after acquisition or recording. A video acquisition device acquires first refocusable light field video data of a scene, stores first refocusable video data representative of the first refocusable light field video data, acquires second refocusable light field video data of the scene after acquiring the first refocusable light field video data, determines a first virtual focus parameter (such as a virtual focus depth) using the second refocusable light field video data, generates first video data using the stored first refocusable video data and the first virtual focus parameter, wherein the first video data includes a focus depth that is different from an optical focus depth of the first refocusable light field video data, and outputs the first video data.
Abstract translation: 视频重新聚焦系统与可重新聚焦的视频数据，信息，图像和/或帧（其可以是在获取或记录之后可以聚焦和/或重新聚焦的光场视频数据，图像和/或帧）相结合地进行操作。 视频获取装置获取场景的第一可重新聚焦的光场视频数据，存储表示第一可重新聚焦的光场视频数据的第一可重新聚焦的视频数据，在获取第一可重新聚焦的光场视频数据之后获取场景的第二可重新聚焦的光场视频数据， 使用第二可重整焦光视频数据确定第一虚拟焦点参数（例如虚拟焦点深度），使用所存储的第一可重新聚焦的视频数据和第一虚拟焦点参数来生成第一视频数据，其中第一视频数据包括焦点深度 其不同于第一可再聚焦光场视频数据的光学聚焦深度，并输出第一视频数据。
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公开(公告)号：US20150312553A1
公开(公告)日：2015-10-29
申请号：US14634659
申请日：2015-02-27
Applicant: Lytro, Inc.
Inventor： Yi-Ren Ng , Chia-Kai Liang , Kurt Barton Akeley , Bennett Wilburn
CPC classification number: H04N13/243 , H04N5/144 , H04N5/2256 , H04N5/23203 , H04N5/2354 , H04N5/247 , H04N13/167 , H04N13/271
Abstract: A system and method are provided for coordinating image capture using multiple devices, including for example multiple image capture devices (cameras), multiple lighting devices (flash), and/or the like. In at least one embodiment, the system of the present invention is configured to collect image information from multiple image capture devices, such as cameras, and/or to collect multiple images having different lighting configurations. The collected image data can be processed to generate various effects, such as relighting, parallax, refocusing, and/or three-dimensional effects, and/or to introduce interactivity into the image presentation. In at least one embodiment, the system of the present invention is implemented using any combination of any number of image capture device(s) and/or flash (lighting) device(s), which may be equipped to communicate with one another via any suitable means, such as wirelessly. A communication protocol is established for enabling such communication, such as WiFi, Bluetooth, or the like.
Abstract translation: 提供了一种用于使用多个设备来协调图像捕获的系统和方法，包括例如多个图像捕获设备（照相机），多个照明设备（闪光灯）等。 在至少一个实施例中，本发明的系统被配置为从诸如照相机的多个图像捕获设备收集图像信息和/或收集具有不同照明配置的多个图像。 可以处理所收集的图像数据以产生各种效果，例如重新点亮，视差，重新聚焦和/或三维效果，和/或将交互性引入到图像呈现中。 在至少一个实施例中，本发明的系统使用任何数量的图像捕获设备和/或闪光（照明）设备的任何组合实现，其可以被配备为经由任何 合适的手段，如无线。 建立通信协议以实现诸如WiFi，蓝牙等之类的通信。
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公开(公告)号：US20150247986A1
公开(公告)日：2015-09-03
申请号：US14716055
申请日：2015-05-19
Applicant: Lytro, Inc.
Inventor： Jerome Chandra Bhat , Brandon Elliott Merle Clarke , Graham Butler Myhre , Ravi Kiran Nalla , Steven David Oliver , Tony Yip Pang Poon , William D. Houck, II , Colvin Pitts , Yi-Ren Ng
CPC classification number: G02B7/02 , G02B3/12 , G02B7/023 , G02B7/08 , G02B13/0015 , G02B27/0075 , H04N5/2254 , H04N5/23245 , H04N13/232 , H04N13/236 , H04N13/261 , H04N13/289 , H04N13/296
Abstract: A dual-mode light field camera or plenoptic camera is enabled to perform both 3D light field imaging and conventional high-resolution 2D imaging, depending on the selected mode. In particular, an active system is provided that enables the microlenses to be optically or effectively turned on or turned off, allowing the camera to selectively operate as a 2D imaging camera or a 3D light field camera.
Abstract translation: 根据所选择的模式，双模光场相机或全光照相机能够执行3D光场成像和常规高分辨率二维成像。 特别地，提供了一种有源系统，其使得微透镜能够被光学上或有效地打开或关闭，从而允许相机选择性地作为2D成像照相机或3D光场照相机工作。
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公开(公告)号：US20150181091A1
公开(公告)日：2015-06-25
申请号：US14573651
申请日：2014-12-17
Applicant: Lytro, Inc.
Inventor： Graham Butler Myhre , Chia-Kai Liang , Colvin Pitts , Carl (Warren) Craddock , Yi-Ren Ng
IPC: H04N5/225
CPC classification number: H04N5/2254 , G02B27/0075 , H04N5/3572 , H04N17/002
Abstract: According to various embodiments, the system and method disclosed herein facilitate the design of plenoptic camera lens systems to enhance camera resolution. A first configuration for the plenoptic camera may first be selected, with a first plurality of variables that define attributes of the plenoptic camera. The attributes may include a main lens attribute of a main lens of the plenoptic camera and/or a phase mask attribute of a phase mask of the plenoptic camera. A merit function may be applied by simulating receipt of light through the main lens and the plurality of microlenses of the first configuration to calculate a first merit function value. The main lens attribute and/or the phase mask attribute may be iteratively perturbed, and the merit function may be re-applied. An optimal set of variables may be identified by comparing results of successive applications of the merit function.
Abstract translation: 根据各种实施例，本文公开的系统和方法有助于设计全光相机透镜系统以增强相机分辨率。 可以首先选择用于全光照相机的第一配置，其中第一多个变量定义全光摄像机的属性。 属性可以包括全光相机的主透镜的主透镜属性和/或全光相机的相位掩模的相位掩模属性。 可以通过模拟通过主透镜和多个第一配置的微透镜的光的接收来应用优值函数，以计算第一优值函数值。 主透镜属性和/或相位掩模属性可以被迭代地扰动，并且优点函数可以被重新应用。 可以通过比较优点函数的连续应用的结果来识别最佳变量集合。
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