公开(公告)号：US20090040220A1

公开(公告)日：2009-02-12

申请号：US12012626

申请日：2008-02-01

Applicant: Jonathan Gibbs ,  Jonathan Dinerstein

Inventor： Jonathan Gibbs ,  Jonathan Dinerstein

IPC: G06T15/00

CPC classification number: G06T13/60 ,  G06T15/06 ,  G06T15/08 ,  G06T15/50 ,  G06T2210/56

Abstract: In the field of computer graphics and more specifically computer implemented animation, two known alternative methods for rendering objects which have volume (fire, smoke, clouds, etc.) are ray marching and splatting (i.e. particle-based rendering). These methods have contrasting strengths and weaknesses. The present volume rendering method and associated apparatus combine these methods, drawing on the strengths of each. The ray marches a volume but, rather than merely accumulating the samples along the ray, a distinct particle is generated for each sample. Each particle captures the volume's local attributes. The particles are then rendered through splatting. Thus the method has the strengths of splatting e.g., fast 3D motion blur and hardware rendering, and the strengths of ray marching e.g., volume sampling density corresponds with camera proximity since rays disperse, thereby focusing computer processing time on important volume detail and minimizing noise. The present method is useful in production of animated feature films, providing fast high-quality volume rendering with true 3D motion blur.

Abstract translation: 在计算机图形领域，更具体地说是计算机实现的动画，用于渲染具有体积（火，烟，云等）的物体的两种已知的替代方法是射线行进和拼接（即，基于粒子的渲染）。 这些方法具有对比的优点和缺点。 本体积渲染方法和相关设备结合了这些方法，借鉴了每一种的优点。 光线射出一个体积，但是不是仅沿着光线累积样品，而是为每个样品产生不同的颗粒。 每个粒子捕获卷的本地属性。 然后通过熔化使颗粒呈现。 因此，该方法具有例如快速3D运动模糊和硬件渲染的优点，并且诸如体积采样密度的射线行进的强度对应于相机接近度，因为射线分散，从而将计算机处理时间聚焦在重要的体积细节上并使噪声最小化。 本方法在生产动画短片方面非常有用，可以通过真实的3D运动模糊提供快速高质量的体绘制。

公开(公告)号：US08325993B2

公开(公告)日：2012-12-04

申请号：US12645813

申请日：2009-12-23

Applicant: Jonathan Dinerstein ,  Sabra Dinerstein ,  Eric D. Eborn

Inventor： Jonathan Dinerstein ,  Sabra Dinerstein ,  Eric D. Eborn

IPC: G06K9/00

CPC classification number: G06K9/00067 ,  G06K9/00033

Abstract: A method, a biometric identifier collection device, and a set of instructions are disclosed. A memory 208 may store a digital image having a biometric identifier. A processor 204 may execute a lighting compensation to remove a lighting effect from the biometric identifier. The processor 204 may process the biometric identifier to create an identification profile.

Abstract translation: 公开了一种方法，生物识别标识符收集装置和一组指令。 存储器208可以存储具有生物识别标识符的数字图像。 处理器204可以执行照明补偿以从生物特征识别符去除照明效果。 处理器204可以处理生物特征识别符以创建识别简档。