Figure 5

(a) Schematic overview of tracking multi-attribute particles. To resolve a complex displacement field, the images are seeded with two different types of particles, differentiated either by color, shape or size as an example. The use of multi-attribute particles allows a particle tracking algorithm to more accurately resolve a complex motion field composed of both large displacements and high spatial frequency motion content. (b) Plot comparing the recovery ratio of our T-PT results using single (i.e., identical) attribute vs. dual-attribute particles over a range of displacement parameters. (c) Mismatch ratio of T-PT results using single-attribute vs. dual-attribute particles over a range of displacement parameters.