System and method for reducing the appearance of r

专利名称：System and method for reducing the

appearance of residuals in gradient-basedimage compositing

发明人：Sylvain Paris申请号：US12393881申请日：20090226公开号：US08780135B2公开日：20140715

专利附图：

摘要：A system and method are proposed for performing gradient-based

compositing in a manner that reduces the appearance of residual errors as compared to

traditional techniques. In embodiments, a target gradient field may be determined for acomposite image and a solution composite image may be sought which minimizes aweighted aggregate error between the gradient field of the composite image and thetarget gradient field. The weighted aggregate error may be calculated such that agreater weight is placed on residuals occurring in smooth regions than on those

occurring in textured regions, since residuals in textured regions may be less noticeable.In some embodiments, a weighted aggregate error may be defined as a weighted least-squares sum and/or minimized by solving a weighted Poisson equation. Thecomputational cost of solving the weighted Poisson equation may be mitigated byensuring that the equation is linear.

申请人：Sylvain Paris

地址：Boston MA US

国籍：US

代理机构：Wolfe-SBMC

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