Three-dimensional particle localization method based on single light field camera

Reconstruction algorithm is a research hotspot in the application of lightfield camera. In this paper, the mathematical model of 3D particle light field imaging is deeply studied, and the ray tracing matrix is established to determine the imaging model of the particle in the light field camera. A mathematical model based on tomographic reconstruction of light field camera is established to realize the calculation of light field image. The multiplicative algebraic reconstruction algorithm (MART) is used to reconstruct the voxel value, and the weighting coefficient in the algorithm is also improved, which improves the operation speed. The influence of the relaxation factor in the algorithm on the three-dimensional positioning of particles is studied, and the selection range is determined. Relevant experimental studies have been carried out, and it Isibund that the relaxation lactor in the range of this paper can improve the operation speed and determine the reasonable iteration number.