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1. 发明授权

US11715405B1 Chroma modification based on ambient light characteristics 有权
公开(公告)号：US11715405B1
公开(公告)日：2023-08-01
申请号：US17573955
申请日：2022-01-12
申请人： Sivalogeswaran Ratnasingam , Anselm Grundhoefer , Ralf Habel
发明人： Sivalogeswaran Ratnasingam , Anselm Grundhoefer , Ralf Habel
IPC分类号： G09G3/20 , G02B27/01
CPC分类号： G09G3/2003 , G02B27/0172 , G02B2027/014 , G09G2320/0666 , G09G2360/141 , G09G2360/144
摘要： A method is performed at an electronic device with one or more processors, a non-transitory memory, and a see-through display. The method includes determining a light superposition value that quantifies ambient light from a physical environment. The method includes obtaining image data that is associated with a color characteristic vector. The color characteristic vector includes a first chroma value. The method includes determining, via a color correction function, a second chroma value based on the color characteristic vector and the light superposition value. The first chroma value is different from the second chroma value. The method includes generating, from the image data, display data that is associated with the second chroma value. The method includes displaying the display data on the see-through display.

2. 发明授权

US09472016B2 Bidirectional point distribution functions for rendering granular media 有权
标题翻译：用于渲染粒度介质的双向点分布函数
公开(公告)号：US09472016B2
公开(公告)日：2016-10-18
申请号：US13842204
申请日：2013-03-15
申请人： Wojciech Jarosz , Johannes Meng , Marios Papas , Ralf Habel , Carsten Dachsbacher , Steve Marschner
发明人： Wojciech Jarosz , Johannes Meng , Marios Papas , Ralf Habel , Carsten Dachsbacher , Steve Marschner
IPC分类号： G06T15/06 , G06T15/50
CPC分类号： G06T15/06 , G06T15/506
摘要： The disclosure provides an approach for rendering granular media. According to one aspect of the disclosure, granular media are rendered using bidirectional point scattering distribution functions (BPSDFs). The dimensionality of BPSDFs may be reduced by making certain assumptions, such as random orientations of grains, thereby simplifying light transport for computational efficiency. To generate a BPSDF from a grain, light transport may be precomputed using a Monte Carlo simulation in which photons are shot onto the grain from all directions. The precomputed BPSDF may be used, during rendering, for describing the interactions within grains. When a light ray traced during rendering intersects proxy geometry which replaces grain geometry, the BPSDF may be evaluated to determine light transport. By repeating this process for many light rays in a Monte Carlo simulation, the light propagation through the granular medium may be determined.
摘要翻译：本公开提供了一种用于渲染粒状介质的方法。根据本公开的一个方面，使用双向点散射分布函数（BPSDF）渲染粒状介质。可以通过做出某些假设来减少BPSDF的维数，诸如颗粒的随机取向，从而简化了光传输的计算效率。为了从颗粒生成BPSDF，可以使用蒙特卡罗模拟预先计算光传输，其中光子从所有方向被射击到颗粒上。在渲染期间可以使用预先计算的BPSDF来描述谷物内的相互作用。当渲染期间跟踪的光线与替代晶粒几何的代理几何相交时，可以评估BPSDF以确定光传输。通过在蒙特卡洛模拟中对于许多光线重复该过程，可以确定通过粒状介质的光传播。

3. 发明授权

US12033556B1 Per-pixel color correction based on ambient light characteristics 有权
公开(公告)号：US12033556B1
公开(公告)日：2024-07-09
申请号：US17573571
申请日：2022-01-11
申请人： Sivalogeswaran Ratnasingam , Anselm Grundhoefer , Ralf Habel
发明人： Sivalogeswaran Ratnasingam , Anselm Grundhoefer , Ralf Habel
IPC分类号： G09G3/20 , G02B27/01 , G06T3/20 , G06T11/00 , G06T19/00 , G09G5/02 , H04N1/60 , H04N5/57 , H04N9/64 , H04N9/67 , H04N9/69 , H04N9/73
CPC分类号： G09G3/2003 , G02B27/0101 , G09G2320/0242 , G09G2320/0666 , G09G2360/144
摘要： A method is performed at an electronic device with one or more processors, a non-transitory memory, and a see-through display. The method includes determining first and second light superposition values that are associated with ambient light from a physical environment. The first light superposition value quantifies the ambient light incident on a first region of the see-through display. The second light superposition value quantifies the ambient light incident on a second region of the see-through display. The method includes modifying a first pixel value of image data, via a color correction function, in order to generate a corresponding first pixel value of display data. The color correction function is based on a combination of the first and second light superposition values. The method includes displaying the corresponding first pixel value of the display data on the see-through display.

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