3D point cloud Bagg albino mouse CD4+ T lymphocyte Cloud density Cloud technologies Communication algorithms Complex terrains Landforms Letter Mapping Mapping systems Reconstruction algorithms Registration algorithms Surface measurement Surveys Th2 cell Three-dimensional point clouds animal experiment animal model basophil blood sampling cell infiltration controlled study eosinophil eosinophil peroxidase eosinophilic esophagitis esophagogastroduodenoscopy esophagus biopsy esophagus epithelium esophagus tissue