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公开(公告)号:US08840250B1
公开(公告)日:2014-09-23
申请号:US13348232
申请日:2012-01-11
IPC分类号: G03B21/26
CPC分类号: H04N9/3194 , G01S15/06 , G01S15/876 , G01S17/06 , G01S17/46 , G06F3/011 , G06T19/006 , H04N9/3185
摘要: An augmented reality environment allows interaction between virtual and real objects. Various surfaces within the environment such as walls, tables, countertop, chairs, floor, ceiling, and so forth may be used as projection surfaces. Qualified projection surfaces are determined, and an initial projection surface is selected for use from these. This selection may take into account user preferences, user orientation, types of image to be projected, and so forth. Other qualified projection surfaces may have visual indicators projected thereon, indicating relative suitability for use as a projection surface.
摘要翻译: 增强的现实环境允许虚拟和实际对象之间的交互。 环境中的各种表面,例如墙壁,桌子,台面,椅子,地板,天花板等都可以用作投影面。 确定合格的投影表面,并选择初始投影表面以供从这些表面使用。 该选择可以考虑用户偏好,用户取向,要投影的图像的类型等等。 其他合格的投影表面可以具有投影在其上的视觉指示符,表示用作投影表面的相对适合性。
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公开(公告)号:US09380270B1
公开(公告)日:2016-06-28
申请号:US13222452
申请日:2011-08-31
CPC分类号: H04N7/18 , A61B1/041 , G06K9/00342 , G06K9/00355 , G06K9/00389 , G06K9/00671 , G06K9/2018 , G06K9/4661
摘要: An augmented reality environment allows interaction between virtual and real objects. Wavelength modulated light with a known spectral signature available within the augmented reality environment is used to generate spectral reflectance data for objects within the environment. This reflectance data is used to determine whether objects or portions thereof are skin.
摘要翻译: 增强的现实环境允许虚拟和实际对象之间的交互。 在增强现实环境中具有可用的已知光谱特征的波长调制光被用于生成环境内物体的光谱反射率数据。 该反射率数据用于确定物体或其部分是皮肤。
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公开(公告)号:US09197870B1
公开(公告)日:2015-11-24
申请号:US13612173
申请日:2012-09-12
申请人: Olusanya T. Soyannwo , Samuel Henry Chang , Edward Dietz Crump , Weijian Wang , Renwei Yan , Ning Yao
发明人: Olusanya T. Soyannwo , Samuel Henry Chang , Edward Dietz Crump , Weijian Wang , Renwei Yan , Ning Yao
CPC分类号: G03B21/53 , A63F13/00 , A63F13/213 , A63F13/42 , G02B27/0101 , G02B2027/0138 , G02B2027/014 , G03B17/54 , G06T19/006 , H04N9/317 , H04N9/3185 , H04N9/3188 , H04N9/3194
摘要: Techniques are described for performing automatic focusing of a projected image on a mobile projection surface. Specific regions of the projected image are identified that are likely to be desired to stay in optimal focus, and attributes of those specific regions, such as sharpness and contrast, can be used to determine the need to refocus the image. Advanced knowledge of the image data being projected can be utilized to determine the specific regions of the projected image that require monitoring for optimal focusing.
摘要翻译: 描述了在移动投影表面上执行投影图像的自动聚焦的技术。 识别投影图像的特定区域,其可能希望保持在最佳焦点,并且可以使用诸如锐度和对比度的那些特定区域的属性来确定对图像进行重新聚焦的需要。 可以利用投影图像数据的高级知识来确定需要监控最佳聚焦的投影图像的特定区域。
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公开(公告)号:US09551922B1
公开(公告)日:2017-01-24
申请号:US13543522
申请日:2012-07-06
申请人: Qiang Liu , Ning Yao , Sowmya Gopalan
发明人: Qiang Liu , Ning Yao , Sowmya Gopalan
CPC分类号: G03B35/00 , G03B17/54 , G06K9/00389 , G06T7/11 , G06T7/194 , G06T2207/10028 , H04N21/80
摘要: Techniques are described for projecting content onto a display surface and for analyzing the hand of a user that is placed over the display surface, such as when the user is making a command gesture. Based on the location and known shape of the display surface, a surface depth map is calculated corresponding to the display surface. Points of the calculated surface depth map are then subtracted from respective points an observed depth map to produce a foreground depth map corresponding to the user hand. The hand may be further characterized and tracked based on the foreground depth map.
摘要翻译: 描述了用于将内容投影到显示表面上并且用于分析放置在显示表面上的用户的手的技术,诸如当用户正在进行命令手势时。 基于显示表面的位置和已知形状,对应于显示表面计算表面深度图。 然后从观察到的深度图的各个点减去所计算的表面深度图的点,以产生与用户手相对应的前景深度图。 可以基于前景深度图进一步表征和跟踪手。
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公开(公告)号:US08837778B1
公开(公告)日:2014-09-16
申请号:US13486664
申请日:2012-06-01
申请人: Samuel Henry Chang , Ning Yao
发明人: Samuel Henry Chang , Ning Yao
IPC分类号: G06K9/00
CPC分类号: G06F3/0304 , G06F3/017 , G06T7/251 , G06T7/75 , G06T2200/04 , G06T2207/10028
摘要: Techniques are described for tracking the pose of a surface based on a point set representing the surface. Sequential observed poses of the surface are used as the basis for creating a mathematical model of the motion of the surface. Future motion of the surface may be predicted based on the mathematical model.
摘要翻译: 描述了基于表示表面的点集来跟踪表面的姿态的技术。 使用表面的顺序观察姿势作为创建表面运动的数学模型的基础。 表面的未来运动可以基于数学模型来预测。
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公开(公告)号:US20100208994A1
公开(公告)日:2010-08-19
申请号:US12658464
申请日:2010-02-09
申请人: Ning Yao , Izzat Izzat , Tao Zhang , Dong-Qing Zhang
发明人: Ning Yao , Izzat Izzat , Tao Zhang , Dong-Qing Zhang
IPC分类号: G06K9/34
CPC分类号: G06T5/005 , G06T7/11 , G06T7/162 , G06T2207/10024 , G06T2207/10028
摘要: Various implementations relate to improving depth maps. This may be done, for example, by identifying bad depth values and modifying those values. The values may represent, for example, holes and/or noise. According to a general aspect, a segmentation is determined based on an intensity image. The intensity image is associated with a corresponding depth image that includes depth values for corresponding locations in the intensity image. The segmentation is applied to the depth image to segment the depth image into multiple regions. A depth value is modified in the depth image based on the segmentation. A two-stage iterative procedure may be used to improve the segmentation and then modify bad depth values in the improved segmentation, and iterating until a desired level of smoothness is achieved. Both stages may be based, for example, on average depth values in a segment.
摘要翻译: 各种实现涉及改进深度图。 这可以通过例如识别不良深度值和修改这些值来完成。 这些值可以表示例如孔和/或噪声。 根据一般方面,基于强度图像来确定分割。 强度图像与包括强度图像中相应位置的深度值的对应深度图像相关联。 分割应用于深度图像,将深度图像分割成多个区域。 基于分割,在深度图像中修改深度值。 可以使用两阶段迭代程序来改进分割,然后在改进的分割中修改不良深度值,并且迭代直到实现所需的平滑度。 这两个阶段可以基于例如一段中的平均深度值。
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公开(公告)号:US10528853B1
公开(公告)日:2020-01-07
申请号:US13537424
申请日:2012-06-29
摘要: Techniques are described for detecting a periphery of a surface based on a point set representing the surface. The surface may correspond to a display medium upon which content is projected. A shape model may be matched and aligned to a contour of the point set. A periphery or edge of the surface and corresponding display medium may be determined based on the aligned shape model.
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公开(公告)号:US09704027B1
公开(公告)日:2017-07-11
申请号:US13405621
申请日:2012-02-27
申请人: Samuel Henry Chang , Sowmya Gopalan , Ning Yao , Yuhua Zhu
发明人: Samuel Henry Chang , Sowmya Gopalan , Ning Yao , Yuhua Zhu
CPC分类号: G06K9/00355 , G06K9/2036 , G06K2209/21 , G06K2209/401 , G06T7/20 , G06T2207/30196
摘要: A hand gesture may be characterized mathematically as a set of motion parameters applied to a dynamic motion model. Training may be conducted to compile a library of motion parameter sets corresponding to various gestures. Motion parameters corresponding to observed gestures may than be compared to the library of motion parameter sets to classify the observed gestures.
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公开(公告)号:US09456187B1
公开(公告)日:2016-09-27
申请号:US13486634
申请日:2012-06-01
申请人: Qiang Liu , Samuel Henry Chang , Ning Yao
发明人: Qiang Liu , Samuel Henry Chang , Ning Yao
摘要: Techniques are described for determining the pose of a surface based on a point set representing the surface. Corner models are matched to a contour of the point set using a difference minimization technique to identify corner poses of the surface. Based on the corner poses, a virtual model of the surface is created and matched to the point set to determine the pose of the surface.
摘要翻译: 描述了基于表示表面的点集来确定表面姿态的技术。 使用差分最小化技术将拐角模型与点集的轮廓相匹配,以识别表面的角姿势。 基于角姿势,创建表面的虚拟模型并将其与点集合相匹配,以确定曲面的姿态。
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公开(公告)号:US08970479B1
公开(公告)日:2015-03-03
申请号:US13562734
申请日:2012-07-31
申请人: Samuel Henry Chang , Weijian Wang , Sowmya Gopalan , Ning Yao , Yuhua Zhu , Manika Puri
发明人: Samuel Henry Chang , Weijian Wang , Sowmya Gopalan , Ning Yao , Yuhua Zhu , Manika Puri
CPC分类号: G06F3/017 , G06K9/00355
摘要: Techniques are described for detecting a hand gesture made by a user. Fingertips of a hand may be identified and tracked over time. When a user contracts the fingertips from an extended position, hand spread may be calculated based on the area of the hand and fingers. The hand spread over time may be compared to a Gaussian function to evaluate whether the observed motion represents a grasping motion.
摘要翻译: 描述了用于检测由用户做出的手势的技术。 一只手的指尖可能随时间被识别和跟踪。 当用户从伸展位置收缩指尖时,可以基于手和手指的面积来计算手伸。 随着时间推移的手可以与高斯函数进行比较,以评估观察到的运动是否表示抓握运动。
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