Patent ID: 7418371
Filing Date: 2008-08-26
Classification: G06T

Abstract:
1. A method for graphical hairstyle generation comprising steps of: a) generating hair strands and wisps by controlling the statistical properties of hair using a statistical wisp model; b) solving the hair deformation due to gravity and collisions between the hair by a pseudo-physical approaches using a styling force field; c) styling the hair by superimposing a constraint force field with the styling force field and solving the hair deformation; and d) drawing the hair strands using probability density functions to represent the randomness of hair color, wherein the step of generating hair strands and wisps comprises steps of: modeling first hair strands using an example-based Markov chain model from a given prototype strand; and duplicating the first hair strands to the neighboring second hair strands by creating statistically-controlled variations, wherein the hair strand is represented as a Catmull-Rom spline, wherein the Catmull-Rom spline is defined and passes through a sequence of control points {p