Section: New Results

Computer Graphics

Participants : Laurent Alonso, Anass Lasram, Samuel Hornus, Bruno Jobard, Anass Lasram, Sylvain Lefebvre, Bruno Lévy, Vincent Nivoliers, Nicolas Ray.

Figure 5. Synthesis of Gabor noise with variable density.

Figure 6. Relighting photos of canopies.

• Foundations of Computer Graphics: We developped new algorithms and data structures for spatial caching and hashing on the GPU [16] . We continued our work on noise generation based on Gabor convolution and proposed several improvements [17] (see Figure 5 ). We also studied the fundamental problem of interpolating functions and developed an algorithm based on optimal transport theory [11] .

• Applications: We developed an algorithm to change the lighting in images that contain trees [12] (with REVES, see Figure 6 ).