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An electronic device estimates a pose of one or more subjects in an environment based on estimating a correspon dence between a data volume containing a data mesh based on a current frame captured by a depth camera and a reference volume containing a plurality of fused prior data frames based on spectral embedding and performing bidi rectional non-rigid matching between the reference volume and the current data frame to refine the correspondence so as to support location-based functionality. The electronic device predicts correspondences between the data volume and the reference volume based on spectral embedding. The correspondences provide constraints that accelerate the con vergence between the data volume and the reference vol ume. By tracking changes between the current data mesh frame and the reference volume, the electronic device avoids tracking failures that can occur when …