公开(公告)号：US08624891B2

公开(公告)日：2014-01-07

申请号：US13007968

申请日：2011-01-17

申请人： Huw Bowles ,  Kenny Mitchell ,  Robert Sumner ,  Wojciech Jarosz ,  Markus Gross

发明人： Huw Bowles ,  Kenny Mitchell ,  Robert Sumner ,  Wojciech Jarosz ,  Markus Gross

IPC分类号： G06T15/00 ,  G06T15/50 ,  G06T15/60

CPC分类号： G06T15/205 ,  H04N13/261

摘要： Techniques are disclosed for performing image space reprojection iteratively. An insignificant parallax threshold depth is computed for a source image. Portions of the image having depth values greater than the insignificant parallax threshold depth may be shifted uniformly to produce corresponding portions of the reprojection (target) image. An iterative fixed-point reprojection algorithm is used to reproject the portions of the source image having depth values less than or equal to the insignificant parallax threshold depth. The fixed point reprojection algorithm quickly converges on the best pixel in the source image for each pixel in a target image representing an offset view of the source image. An additional rendering pass is employed to fill disoccluded regions of the target image, where the reprojection algorithm fails to converge.

摘要翻译： 公开了用于迭代地执行图像空间重映射的技术。 为源图像计算不重要的视差阈值深度。 具有大于无效视差阈值深度的深度值的图像的部分可以均匀地偏移，以产生对再现（目标）图像的对应部分。 迭代定点重投影算法用于重新投影具有小于或等于无效视差阈值深度的深度值的源图像部分。 固定点重投影算法在代表源图像的偏移视图的目标图像中的每个像素上快速收敛于源图像中的最佳像素。 采用额外的渲染过程来填充目标图像的不同区域，其中重新投影算法无法收敛。

公开(公告)号：US20120182299A1

公开(公告)日：2012-07-19

申请号：US13007968

申请日：2011-01-17

申请人： Huw Bowles ,  Kenny Mitchell ,  Robert Sumner ,  Wojciech Jarosz ,  Markus Gross

发明人： Huw Bowles ,  Kenny Mitchell ,  Robert Sumner ,  Wojciech Jarosz ,  Markus Gross

IPC分类号： G06T15/50 ,  G06T15/00

CPC分类号： G06T15/205 ,  H04N13/261

摘要： Techniques are disclosed for performing image space reprojection iteratively. An insignificant parallax threshold depth is computed for a source image. Portions of the image having depth values greater than the insignificant parallax threshold depth may be shifted uniformly to produce corresponding portions of the reprojection (target) image. An iterative fixed-point reprojection algorithm is used to reproject the portions of the source image having depth values less than or equal to the insignificant parallax threshold depth. The fixed point reprojection algorithm quickly converges on the best pixel in the source image for each pixel in a target image representing an offset view of the source image. An additional rendering pass is employed to fill disoccluded regions of the target image, where the reprojection algorithm fails to converge.

摘要翻译： 公开了用于迭代地执行图像空间重映射的技术。 为源图像计算不重要的视差阈值深度。 具有大于无效视差阈值深度的深度值的图像的部分可以均匀地偏移，以产生对再现（目标）图像的对应部分。 迭代定点重投影算法用于重新投影具有小于或等于无效视差阈值深度的深度值的源图像部分。 固定点重投影算法在代表源图像的偏移视图的目标图像中的每个像素上快速收敛于源图像中的最佳像素。 采用额外的渲染过程来填充目标图像的不同区域，其中重新投影算法无法收敛。

公开(公告)号：US20130176397A1

公开(公告)日：2013-07-11

申请号：US13347537

申请日：2012-01-10

申请人： Thomas Oskam ,  Alexander Hornung ,  Huw Bowles ,  Kenny Mitchell ,  Markus Gross

发明人： Thomas Oskam ,  Alexander Hornung ,  Huw Bowles ,  Kenny Mitchell ,  Markus Gross

IPC分类号： H04N7/18 ,  H04N13/02

CPC分类号： H04N13/111 ,  H04N13/128 ,  H04N13/332

摘要： A method is provided for an optimized stereoscopic camera with low processing overhead, especially suitable for real-time applications. By constructing a viewer-centric and scene-centric model, the mapping of scene depth to perceived depth may be defined as an optimization problem, for which a solution is analytically derived based on constraints to stereoscopic camera parameters including interaxial separation and convergence distance. The camera parameters may thus be constrained prior to rendering to maintain a desired perceived depth volume around a stereoscopic display, for example to ensure user comfort or provide artistic effects. To compensate for sudden scene depth changes due to unpredictable camera or object movements, as may occur with real-time applications such as video games, the constraints may also be temporally interpolated to maintain a linearly corrected and approximately constant perceived depth range over time.

摘要翻译： 为具有低处理开销的优化立体相机提供了一种方法，特别适用于实时应用。 通过构建以观众为中心和以场景为中心的模型，场景深度与感知深度的映射可以被定义为优化问题，基于对包括轴间分离和收敛距离的立体摄像机参数的约束，分析地导出解决方案。 因此，在渲染之前可以约束相机参数以在立体显示器周围保持期望的感知深度体积，例如以确保用户舒适度或提供艺术效果。 为了补偿由于不可预测的相机或物体移动引起的突发场景深度变化，如可能在诸如视频游戏的实时应用中可能发生的，约束也可以在时间上被内插以保持随时间的线性校正和近似恒定的感知深度范围。

公开(公告)号：US08885021B2

公开(公告)日：2014-11-11

申请号：US13347537

申请日：2012-01-10

申请人： Thomas Oskam ,  Alexander Hornung ,  Huw Bowles ,  Kenny Mitchell ,  Markus Gross

发明人： Thomas Oskam ,  Alexander Hornung ,  Huw Bowles ,  Kenny Mitchell ,  Markus Gross

IPC分类号： H04N13/00

CPC分类号： H04N13/111 ,  H04N13/128 ,  H04N13/332

摘要： A method is provided for an optimized stereoscopic camera with low processing overhead, especially suitable for real-time applications. By constructing a viewer-centric and scene-centric model, the mapping of scene depth to perceived depth may be defined as an optimization problem, for which a solution is analytically derived based on constraints to stereoscopic camera parameters including interaxial separation and convergence distance. The camera parameters may thus be constrained prior to rendering to maintain a desired perceived depth volume around a stereoscopic display, for example to ensure user comfort or provide artistic effects. To compensate for sudden scene depth changes due to unpredictable camera or object movements, as may occur with real-time applications such as video games, the constraints may also be temporally interpolated to maintain a linearly corrected and approximately constant perceived depth range over time.

摘要翻译： 为具有低处理开销的优化立体相机提供了一种方法，特别适用于实时应用。 通过构建以观众为中心和以场景为中心的模型，场景深度与感知深度的映射可以被定义为优化问题，基于对包括轴间分离和收敛距离的立体摄像机参数的约束，分析地导出解决方案。 因此，在渲染之前可以约束相机参数以在立体显示器周围保持期望的感知深度体积，例如以确保用户舒适度或提供艺术效果。 为了补偿由于不可预测的相机或物体移动引起的突发场景深度变化，如可能在诸如视频游戏的实时应用中可能发生的，约束也可以在时间上被内插以保持随时间的线性校正和近似恒定的感知深度范围。

公开(公告)号：US09171390B2

公开(公告)日：2015-10-27

申请号：US12843827

申请日：2010-07-26

申请人： Robert Sumner ,  Johannes Schmid ,  Markus Gross ,  Huw Bowles

发明人： Robert Sumner ,  Johannes Schmid ,  Markus Gross ,  Huw Bowles

IPC分类号： G06T13/00

CPC分类号： G06T13/00

摘要： In an animation processing system, generating images to be viewable on a display using a computer that are generated based on scene geometry obtained from computer readable storage and animation data representing changes over time of scene geometry elements, but also images can be modified to include shading that is a function of positions of objects at other than the current instantaneous time for a frame render such that the motion effect shading would suggest motion of at least one of the elements to a viewer of the generated images. Motion effects provide, based on depiction parameters and/or artist inputs, shading that varies for at least some received animation data, received motion depiction parameters, for at least one pixel, a pixel color is rendered based on motion effect program output and at least some received scene geometry, such that the output contributes to features that would suggest the motion.

摘要翻译： 在动画处理系统中，使用基于从计算机可读存储获得的场景几何生成的计算机生成图像以在场景几何元素上表示随时间变化的动画数据生成图像，并且还可以修改图像以包括阴影 这是对于帧渲染的当前瞬时时间以外的对象的位置的函数，使得运动效果阴影将建议至少一个元素对生成的图像的观看者的运动。 运动效果基于描绘参数和/或艺术家输入，为至少一个像素的至少一些接收到的动画数据，接收到的运动描绘参数而变化的阴影，基于运动效果程序输出渲染像素颜色，并且至少 一些接收到的场景几何，使得输出有助于提示运动的特征。