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1. 发明授权

US10126820B1 Open and closed hand detection 有权
公开(公告)号：US10126820B1
公开(公告)日：2018-11-13
申请号：US13689525
申请日：2012-11-29
申请人： Rawles LLC
发明人： Samuel Henry Chang , Ning Yao , Sowmya Gopalan , Rahul Agrawal
IPC分类号： G06F3/01
摘要： Detection of human hands within an environment is used for gesture recognition for input to a computing system. Detecting a hand is non-trivial, however, because the appearances of a hand vary widely with many independent digits and moving parts. A feature-based similarity measurement is used to detect two specific hand positions—an open hand and a closed hand.

2. 发明授权

US09336602B1 Estimating features of occluded objects 有权
标题翻译：封闭物体的估计特征
公开(公告)号：US09336602B1
公开(公告)日：2016-05-10
申请号：US13770327
申请日：2013-02-19
申请人： Rawles LLC
发明人： Samuel Henry Chang , Ning Yao
IPC分类号： G06T7/00
CPC分类号： G06T7/0075 , G06K9/00375 , G06K9/00671 , G06K9/34 , G06T17/00
摘要： A number of images of an environment may be obtained over time. In some images, a portion of an object included in the environment may be occluded by another object in the environment. In these images, features of the occluded portion of the object may be absent. The absent features may be estimated based on features generated from previous images including the object where the occluded portion of the object was not occluded in the previous images. In some cases, the absent features may be estimated based on data associated with a reference object that corresponds to the occluded object with the reference object being included in a catalog of reference objects.
摘要翻译：随着时间的推移，可以获得许多环境的图像。在一些图像中，环境中包括的对象的一部分可能被环境中的另一对象遮挡。在这些图像中，对象的遮挡部分的特征可能不存在。可以基于从先前图像生成的特征来估计不存在的特征，包括在先前图像中物体的遮挡部分未被遮挡的物体。在一些情况下，可以基于与参考对象相关联的数据来估计缺席特征，所述参考对象对应于被遮挡对象，其中参考对象被包括在参考对象的目录中。

3. 发明授权

US09081418B1 Obtaining input from a virtual user interface 有权
标题翻译：从虚拟用户界面获取输入
公开(公告)号：US09081418B1
公开(公告)日：2015-07-14
申请号：US13794296
申请日：2013-03-11
申请人： Rawles LLC
发明人： Ning Yao , Samuel Henry Chang
IPC分类号： G09G5/00 , G06F3/01 , G06F3/00
CPC分类号： G06F3/011 , G06F3/017 , G06F3/0304
摘要： A virtual user interface in a 3D environment is projected onto a display object, such as an open hand. An operating object, such as a stylus or a second hand with an index finger extended, may be used to select input features of the projected user interface. In one scenario, for example, a telephone keypad may be projected onto the open hand and the index finger may be used to select a particular number on the keypad. Images of the hands may be segmented to produce contours of the finger and open hand, and these contours are used to determine the location of the finger relative to the open hand.
摘要翻译：将3D环境中的虚拟用户界面投影到诸如开放手的显示对象上。可以使用操作对象（诸如触控笔或具有伸缩的食指的秒针）来选择投影用户界面的输入特征。在一种情况下，例如，可以将电话键盘投影到打开的手上，并且食指可以用于选择键盘上的特定数字。手的图像可以被分割以产生手指和打开的手的轮廓，并且这些轮廓用于确定手指相对于开放手的位置。

4. 发明授权

US09304582B1 Object-based color detection and correction 有权
标题翻译：基于对象的颜色检测和校正
公开(公告)号：US09304582B1
公开(公告)日：2016-04-05
申请号：US14134721
申请日：2013-12-19
申请人： Rawles LLC
发明人： Vijay Kamarshi , Helder Jesus Ramalho , Rahul Agrawal , Robert Ramsey Flenniken , Ning Yao , Paul Matthew Bombach , Yue Liu , Sowmya Gopalan
IPC分类号： G06F3/01 , G06F3/042 , G06T7/00
CPC分类号： G06F3/011 , G06F3/017 , G06F3/0425 , G06T7/70 , G06T7/73 , G06T7/90 , G06T2207/10024 , G06T2207/10028 , G06T2207/30196
摘要： A system may utilize a projector, a camera, and a depth sensor to produce images within the environment of a user and to detect and respond to user actions. Depth data from the depth sensor may be analyzed to detect and identify items within the environment. A coordinate transformation may then be used to identify corresponding color values from camera data, which can in turn be analyzed to determine the colors of detected items. A similar coordinate transformation may be used to identify color values of a projected image that correspond to the detected items. In some cases, camera color values corresponding to an item may be corrected based on the corresponding color values of a projected image. In other cases, projected color values corresponding to an item may be corrected based on the corresponding camera color values.
摘要翻译：系统可以使用投影仪，照相机和深度传感器来在用户的环境内产生图像并且检测和响应用户动作。可以分析来自深度传感器的深度数据以检测和识别环境内的物品。然后可以使用坐标变换来从相机数据识别相应的颜色值，其可以进一步被分析以确定检测到的物品的颜色。可以使用类似的坐标变换来识别与检测到的项目相对应的投影图像的颜色值。在一些情况下，可以基于投影图像的相应颜色值来校正对应于项目的相机颜色值。在其他情况下，可以基于相应的相机颜色值来校正对应于项目的投影颜色值。

5. 发明授权

US09201499B1 Object tracking in a 3-dimensional environment 有权
标题翻译：三维环境中的对象跟踪
公开(公告)号：US09201499B1
公开(公告)日：2015-12-01
申请号：US13764741
申请日：2013-02-11
申请人： Rawles LLC
发明人： Samuel Henry Chang , Ning Yao
IPC分类号： G06F3/01 , G06F3/038 , G06F3/042
CPC分类号： G06F3/011 , G06F3/017 , G06F3/0386 , G06F3/042 , G06F3/0425 , G06K9/00375
摘要： The movement of an object is tracked in a 3D environment. In some cases, the object is a hand which may be used for gesture input to an augmented reality system. In a particular implementation, 3D images of the environment may be captured and 2D contours of objects within the environment may be generated. Overlap between regions defined by the 2D contours of objects in the 3D images may be utilized to determine whether an object in a first 3D image is the same as an object in a second 3D image that is captured subsequent to the first 3D image.
摘要翻译：物体的移动在3D环境中被跟踪。在某些情况下，对象是可以用于向增强现实系统的手势输入的手。在特定实现中，可以捕获环境的3D图像，并且可以生成环境内的对象的2D轮廓。可以利用由3D图像中的对象的2D轮廓定义的区域之间的重叠，以确定第一3D图像中的对象是否与在第一3D图像之后被捕获的第二3D图像中的对象相同。

6. 发明授权

US09041691B1 Projection surface with reflective elements for non-visible light 有权
标题翻译：具有不可见光反射元件的投影面
公开(公告)号：US09041691B1
公开(公告)日：2015-05-26
申请号：US13764647
申请日：2013-02-11
申请人： Rawles LLC
发明人： Menashe Haskin , Kavitha Velusamy , Ning Yao , Robert Warren Sjoberg , Vijay Kamarshi , Kevin Wayne Arthur
IPC分类号： G06F3/042 , G03B21/56 , G03B21/60
CPC分类号： G06F3/0421 , G03B21/26 , G03B21/56 , G03B21/60 , G06F3/0425
摘要： A passive projection screen presents images projected thereon by a projection system. A surface of the screen includes elements that are reflective to non-visible light, such as infrared (IR) light. When non-visible light is directed to the screen, the non-visible light is reflected by the reflective elements back. Part of the reflected light may contact and reflect from a user's fingertip or hand (or other object, such as a stylus) while another part is reflected to the projection system. The projection system differentiates among distances to the surface and distances that include the additional travel to the fingertip. As the fingertip moves closer to the surface, the distances approach equality. When the distances are approximately equal, the finger is detected as touching the surface. In this manner, a projection surface equipped with reflective elements facilitates more accurate touch detection.
摘要翻译：被动投影屏幕呈现通过投影系统投影在其上的图像。屏幕的表面包括反射不可见光的元件，例如红外（IR）光。当不可见光被引导到屏幕时，不可见光被反射元件反射回来。反射光的一部分可以从用户的指尖或手（或其他物体，例如触针）接触并反射，而另一部分被反射到投影系统。投影系统区分到表面的距离和距离，包括对指尖的额外行进。当指尖靠近表面移动时，距离接近平等。当距离近似相等时，手指被检测为接触表面。以这种方式，配备有反射元件的投影表面有助于更准确的触摸检测。

7. 发明授权

US09336607B1 Automatic identification of projection surfaces 有权
标题翻译：自动识别投影面
公开(公告)号：US09336607B1
公开(公告)日：2016-05-10
申请号：US13687952
申请日：2012-11-28
申请人： Rawles LLC
发明人： Samuel Henry Chang , Ning Yao , Sowmya Gopalan
IPC分类号： G06K9/00 , G06T7/40
CPC分类号： G06T7/73 , G06T2200/04 , G06T2207/10028
摘要： Techniques are described for identifying suitable surfaces within a room upon which visual content may be displayed. One or more images of the room are obtained and used to identify planar surfaces. The images may also be analyzed to determine the visual textures of the surfaces within the room. Suitable projection surfaces may then be selected from the identified planar surfaces, based on the visual textures of the planar surfaces.
摘要翻译：描述了用于识别可以在其上显示可视内容的房间内的合适表面的技术。获得房间的一个或多个图像并用于识别平面。还可以分析图像以确定房间内的表面的视觉纹理。然后可以基于平面表面的视觉纹理从所识别的平面表面中选择合适的投影表面。

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