This SIGGRAPH 2003 paper by Karl Hillesland, Sergey Molinov, and Radek Grzeszczuk casts nonlinear optimization as a data streaming process for computation on GPUs. The authors apply this approach to two distinct image-based modeling problems: light field mapping approximation and fitting the Lafortune model to spatial BRDFs. (Nonlinear Optimization Framework for Image-Based Modeling on Programmable Graphics Hardware. Karl E. Hillesland, Sergey Molinov, and Radek Grzeszczuk. To appear in the proceedings of SIGGRAPH 2003.)