公开(公告)号：US09379814B2

公开(公告)日：2016-06-28

申请号：US14004773

申请日：2012-03-22

申请人： Frits De Bruijn ,  Ruud Vlutters ,  Lorenzo Feri ,  Tim Schenk ,  Ronald Rietman

发明人： Frits De Bruijn ,  Ruud Vlutters ,  Lorenzo Feri ,  Tim Schenk ,  Ronald Rietman

IPC分类号： H04B10/116 ,  H04B10/54 ,  H04N5/225 ,  H05B37/02 ,  H04B10/548 ,  H04B10/69 ,  H04N5/353

CPC分类号： H04B10/116 ,  H04B10/54 ,  H04B10/548 ,  H04B10/69 ,  H04N5/225 ,  H04N5/2256 ,  H04N5/235 ,  H04N5/3532 ,  H05B37/02 ,  H05B37/0272 ,  H05B37/029

摘要： There is provided a light detection system which is capable of determining in light embedded codes by detecting light in a scene which is illuminated by an illumination system (110) comprising one or more light sources (111,112,113) each providing a light contribution (I111, I112, I113) comprising an embedded code (ID#1, ID#2, ID#3) emitted as a temporal sequence of modulations in a characteristics of the light emitted. The light detection system comprises light detection means (220), which are arranged for acquiring at least one image of the scene, where the image is acquired a plurality of temporal shifted line instances. Each line of the acquired image comprises an instance of the temporal sequence of modulations of the first embedded code. The light detection system further comprises means (230) for determining embedded codes from the spatial pattern of modulations.

摘要翻译： 提供一种光检测系统，其能够通过检测由包括一个或多个光源（111,112,113）的照明系统（110）照亮的场景中的光来确定光嵌入代码，每个光源（111,112,113）提供光贡献（I111，I112 ，I113），其包括作为发射的光的特性的调制的时间序列发射的嵌入码（ID＃1，ID＃2，ID＃3）。 光检测系统包括光检测装置（220），其被设置用于获取场景的至少一个图像，其中获取图像多个时间偏移线实例。 所获取的图像的每一行包括第一嵌入代码的调制的时间序列的实例。 光检测系统还包括用于从调制的空间模式确定嵌入代码的装置（230）。

公开(公告)号：US09131221B2

公开(公告)日：2015-09-08

申请号：US13379453

申请日：2010-06-21

申请人： Ruud Vlutters ,  Frederik Jan De Bruijn ,  Dmitry Nikolaevich Znamenskiy

发明人： Ruud Vlutters ,  Frederik Jan De Bruijn ,  Dmitry Nikolaevich Znamenskiy

IPC分类号： H04N13/00 ,  H04N13/02

CPC分类号： H04N13/218 ,  H04N13/10 ,  H04N13/207 ,  H04N13/289

摘要： A camera and camera system is provided with an optical device (8). The optical device creates simultaneously two or more images of object on a sensor (4) forming a compound image. The distance d between the constituting images of objects in the compound image is dependent on the distance Z to the camera. The compound image is analyzed (9), e.g. deconvolved to determine the distances d between the double images. These distances are then converted into a depth map (10).

摘要翻译： 相机和相机系统设置有光学装置（8）。 光学装置在形成复合图像的传感器（4）上同时产生两个或多个物体图像。 复合图像中物体的构成图像之间的距离d取决于相机的距离Z。 分析复合图像（9），例如 解卷积以确定双重图像之间的距离d。 然后将这些距离转换成深度图（10）。

公开(公告)号：US08934005B2

公开(公告)日：2015-01-13

申请号：US14232016

申请日：2012-07-03

申请人： Frederik Jan De Bruijn ,  Ruud Vlutters ,  Harold Agnes Wilhelmus Schmeitz ,  Tommaso Gritti

发明人： Frederik Jan De Bruijn ,  Ruud Vlutters ,  Harold Agnes Wilhelmus Schmeitz ,  Tommaso Gritti

IPC分类号： H04N7/18 ,  G06F3/01 ,  A61B3/10

CPC分类号： H04N7/18 ,  A61B3/10 ,  A61B3/14 ,  G06F3/013

摘要： A system and method that measures an optical focus of a distant optical imaging system (EYE), in particular the ocular accommodation of a distant human subject. A luminous pattern of light (P1, A1) is projected by a projector (P) in focus (A2) at a known focal plane (FPL1) in front of the distant optical imaging system (EYE), and an image of the reflection of the pattern (A3) on a sensor surface of the distant optical imaging system (EYE), for instance the retina of an eye, is recorded by a camera (CAM) having an optical axis (AXCAM) coinciding at least partly with or situated close to the optical axis (AXP) of the projection device (P). The sharpness of the luminous pattern (A3) reflected from the sensor surface (retina) is determined.

摘要翻译： 测量远距离光学成像系统（EYE）的光学焦点的系统和方法，特别是遥远的人类对象的眼睛适应。 在远距离光学成像系统（EYE）前面的已知焦平面（FPL1）处，通过投影仪（P）在聚焦（A2）处投射光（P1，A1）的发光图案，并且反射的图像 远距离光学成像系统（EYE）的传感器表面（EYE）上的图案（A3）例如眼睛的视网膜由相机（CAM）记录，该照相机（CAM）具有至少部分地或位于近处的光轴（AXCAM） 到投影装置（P）的光轴（AXP）。 确定从传感器表面（视网膜）反射的发光图案（A3）的清晰度。

公开(公告)号：US07885152B2

公开(公告)日：2011-02-08

申请号：US11993896

申请日：2006-06-27

申请人： Ruud Vlutters ,  Bin Yin

发明人： Ruud Vlutters ,  Bin Yin

IPC分类号： G11B7/00

CPC分类号： G11B7/0901 ,  G11B7/0943 ,  G11B2007/0013

摘要： A tracking error (TE) signal is formed from a single spot on a photodetector 25 to improve the robustness in optical disc applications having a reduced track-pitch. Reduced track pitches are employed in high data capacity optical disc formats. By using high frequency cross-correlation of a central aperture signal, the differences within the left 21 and right 23 detector halves yield a divergence from the zero crossing that produces a more pronounced tracking signal. The more pronounced tracking signal is insensitive to incoherent cross talk in multi-layer discs.

摘要翻译： 从光电检测器25上的单个点形成跟踪误差（TE）信号，以改善具有减小的轨道间距的光盘应用的鲁棒性。 在高数据容量的光盘格式中采用减少轨道间距。 通过使用中心孔径信号的高频互相关，左侧21和右侧23个检测器之间的差异部分产生了从过零点产生更明显的跟踪信号的偏差。 更明显的跟踪信号对多层光盘中的非相干串扰不敏感。

公开(公告)号：US07822085B2

公开(公告)日：2010-10-26

申请号：US10562285

申请日：2004-06-24

申请人： Johannes Joseph Hubertina Barbara Schleipen ,  Ruud Vlutters

发明人： Johannes Joseph Hubertina Barbara Schleipen ,  Ruud Vlutters

IPC分类号： H01S3/00

CPC分类号： G11B7/126 ,  G11B7/00456

摘要： A system and method is provided which compensates for the effects of relaxation oscillations and turn-on delays of diode laser devices. In particular, there is provided a method and system for tuning the shape of the power profile of an output optical signal and its position with respect to a channel bit clock of an optical recording system.

摘要翻译： 提供了补偿二极管激光器件的弛豫振荡和导通延迟的影响的系统和方法。 具体地，提供了一种用于调整输出光信号的功率曲线的形状及其相对于光学记录系统的通道位时钟的位置的方法和系统。

公开(公告)号：US20100027397A1

公开(公告)日：2010-02-04

申请号：US11722383

申请日：2005-12-07

申请人： Ruud Vlutters ,  Bin Yin

发明人： Ruud Vlutters ,  Bin Yin

IPC分类号： G11B20/18

CPC分类号： G11B7/0943 ,  G11B7/0903

摘要： The present invention provides a method and apparatus for robust tracking at narrow track-pitches on optical discs, enabling higher densities on Blu-ray Discs (5) as well as near-field discs. Increasing radial density results in loss of radial diffraction within the numerical aperture of the lens. Due to this loss in diffraction, current tracking methods, such as Push-Pull and Differential Phase Detection (DPD), will stop working. The invention provides a method and apparatus that relies on cross-correlating the central aperture (CA) signals of 3 optical spots (22, 24, 26) that are positioned such that there are a central spot (24) and spots (22, 26) positioned to the left (22) and right (26) of the central spot (4). By using CA signals, the tangential diffraction is used, which is hardly affected by a track-pitch reduction.

摘要翻译： 本发明提供一种用于在光盘上的窄轨道间距进行鲁棒跟踪的方法和装置，能够在蓝光光盘（5）以及近场光盘上实现更高的密度。 增加径向密度导致透镜数值孔径内的径向衍射损失。 由于这种衍射损失，诸如推挽和差分相位检测（DPD）之类的电流跟踪方法将停止工作。 本发明提供了一种依赖于将3个光点（22,24,26）的中心孔径（CA）信号交叉相关的方法和装置，其被定位成使得存在中心斑点（24）和斑点（22,26） ）位于中心点（4）的左侧（22）和右侧（26）。 通过使用CA信号，使用切向衍射，其几乎不受轨道间距减小的影响。

公开(公告)号：US20080259759A1

公开(公告)日：2008-10-23

申请号：US10597565

申请日：2005-01-28

申请人： Hubert Cecile Francois Martens ,  Ruud Vlutters

发明人： Hubert Cecile Francois Martens ,  Ruud Vlutters

IPC分类号： G11B3/74 ,  G11B7/00

CPC分类号： G11B7/24085 ,  G11B7/004 ,  G11B7/0079 ,  G11B7/14 ,  G11B7/24038

摘要： A record carrier has information represented by high density read-only marks in a track. The read-only marks (74,75) are optically readable according to a predefined high-density data format such as CD or DVD via a beam of radiation by first variations of the radiation. The record carrier has a recordable layer (70) for writing recorded marks (72,73) in a recording area of the record carrier, which recording area extends over the track (9) carrying the read-only marks. The recordable layer (70) is arranged to generate second variations of the radiation by a difference between an unrecorded state and a recorded state. A recording device writes recorded marks on top of the read-only marks. A read device recovers the first and second variations, and detects the read-only marks and the recorded marks from a same part of the track.

摘要翻译： 记录载体具有由轨道中的高密度只读标记表示的信息。 根据预定的高密度数据格式（例如CD或DVD），通过辐射的第一变化经由辐射束，只读标记（74,75）是光学可读的。 记录载体具有用于在记录载体的记录区域中写入记录标记（72,73）的记录层（70），该记录区域在承载只读标记的轨道（9）上延伸。 可记录层（70）被布置成通过未记录状态和记录状态之间的差异来产生辐射的第二变化。 记录装置将记录标记写在只读标记之上。 读取装置恢复第一和第二变化，并且从轨道的相同部分检测只读标记和记录标记。

公开(公告)号：US09982995B2

公开(公告)日：2018-05-29

申请号：US14117446

申请日：2012-05-11

申请人： Dmitry Nikolayevich Znamenskiy ,  Ruud Vlutters ,  Karl Catharina Van Bree

发明人： Dmitry Nikolayevich Znamenskiy ,  Ruud Vlutters ,  Karl Catharina Van Bree

IPC分类号： G06K9/00 ,  H04N13/00 ,  G01B11/25 ,  G06T7/521 ,  G06T7/586

CPC分类号： G01B11/2518 ,  G01B11/2513 ,  G01B11/2536 ,  G06T7/521 ,  G06T7/586 ,  G06T2207/10012 ,  G06T2207/10028 ,  G06T2207/10152

摘要： A series of structured lighting patterns are projected on an object. Each successive structured lighting pattern has a first and second subset of intensity features such as edges between light and dark areas. The intensity features of the first set coincide spatially with intensity features from either the first or second subset from a preceding structured lighting pattern in the series. Image positions are detected where the intensity features of the first and second subset of the structured lighting patterns are visible in the images. Image positions where the intensity features of the first subset are visible are associated with the intensity features of the first subset, based on the associated intensity features of closest detected image positions with associated intensity features in the image obtained with a preceding structured lighting pattern in said series. Image positions where the intensity features of the second subset are visible, between pairs of the image positions associated with intensity features of the first subset, with intensity features of the second subset between the intensity features associated with the pair of positions. The associated intensity features in a final structured lighting pattern of the series are used to identify the intensity features of the final structured lighting pattern for the determination of 3D surface position information.

公开(公告)号：US20120281879A1

公开(公告)日：2012-11-08

申请号：US13520588

申请日：2011-01-11

申请人： Ruud Vlutters ,  Frederik Jan De Bruijn ,  Lorenzo Feri ,  Tim Corneel Wilhelmus Schenk ,  Remco Theodorus Johannes Muijs

发明人： Ruud Vlutters ,  Frederik Jan De Bruijn ,  Lorenzo Feri ,  Tim Corneel Wilhelmus Schenk ,  Remco Theodorus Johannes Muijs

IPC分类号： G06K9/46 ,  H04N7/18

CPC分类号： H05B37/02 ,  G06K9/2036

摘要： The invention relates to a detection system for determining whether a light contribution of a light source is present at a selected position within a 2D scene. The light contribution includes an embedded code comprising a repeating sequence of N symbols. The detection system includes a camera and a processing unit. The camera is configured to acquire a series of images of the scene via specific open/closure patterns of the shutter. Each image includes a plurality of pixels, each pixel representing an intensity of the light output of the light source at a different physical position within the scene. The processing unit is configured to process the acquired series of images to determine whether the light contribution of the first light source is present at the selected physical position within the scene by e.g. correlating a sequence of pixels of the acquired series corresponding to the selected physical position with the first sequence of N symbols.

摘要翻译： 本发明涉及一种用于确定在2D场景内的选定位置是否存在光源的光贡献的检测系统。 光贡献包括包括N个符号的重复序列的嵌入代码。 检测系统包括照相机和处理单元。 相机被配置为通过快门的特定打开/关闭图案来获取场景的一系列图像。 每个图像包括多个像素，每个像素表示在场景内的不同物理位置处的光源的光输出的强度。 处理单元被配置为处理所获取的一系列图像以确定第一光源的光贡献是否存在于场景内的所选物理位置。 将所选择的所选择的物理位置的序列的像素序列与N个符号的第一序列相关联。

公开(公告)号：US20120062787A1

公开(公告)日：2012-03-15

申请号：US13319800

申请日：2010-04-28

申请人： Remco Theodorus Johannes Muijs ,  Dmitry Nikolaevich Znamenskiy ,  Harald Agnes Wilhelmus Schmeitz ,  Ruud Vlutters ,  Franciscus Hendrikus Van Heesch

发明人： Remco Theodorus Johannes Muijs ,  Dmitry Nikolaevich Znamenskiy ,  Harald Agnes Wilhelmus Schmeitz ,  Ruud Vlutters ,  Franciscus Hendrikus Van Heesch

IPC分类号： G03B13/00 ,  H04N5/232

CPC分类号： H04N5/23248 ,  G06T5/003 ,  G06T2207/20201

摘要： A camera and system comprising a camera in which, during exposure, the ratio of the distance between the lens and the sensor and the focal length is changed. The rate of change is set such that motion invariant imaging is achievable for practical speed ranges, i.e. speed of up to at least 5 km/hour at 2 meter distance of the lens, by deconvoluting the compound image. Preferably the achievable speed range is at least twice as high. A linear motion of the sensor is preferred.

摘要翻译： 一种照相机和系统，包括照相机，其中在曝光期间，透镜和传感器之间的距离与焦距的比率发生变化。 变化率被设置为使得实际速度范围（即，在透镜的2米距离处至少5公里/小时的速度）可以通过对卷曲化复合图像进行解卷积来实现运动不变成像。 优选地，可实现的速度范围是至少两倍高。 传感器的线性运动是优选的。