CO-REGISTRATION - SIMULTANEOUS ALIGNMENT AND MODELING OF ARTICULATED 3D SHAPES

摘要

Present application refers to a method, a model generation unit and a computer program (product) for generating trained models (M) of moving persons, based on physically measured person scan data (S). The approach is based on a common template (T) for the respective person and on the measured person scan data (S) in different shapes and different poses. Scan data are measured with a 3D laser scanner. A generic personal model is used for co-registering a set of person scan data (S) aligning the template (T) to the set of person scans (S) while simultaneously training the generic personal model to become a trained person model (M) by constraining the generic person model to be scan-specific, person-specific and pose-specific and providing the trained model (M), based on the co registering of the measured object scan data (S).

主权项

1. Model generation unit for generating trained models (M) of moving objects, based on physically measured object scan data (S), comprising:
A template interface, which is adapted to provide at least one common template (T) for the respective object A sensing device for measuring object scan data (S) in different shapes and in different poses Access means to a database, storing at least one generic object model An initializing interface, which is adapted to provide initialized object scan data (S) and initialized template data (T) A Co-Registration unit, which is adapted for executing a non-linear objective function for co-registering a set of initialized object scan data (S) by executing registering and model generation in a combined manner, namely: Aligning the initialized template (T) to the set of initialized object scans (S) while simultaneously: Training the generic object model by minimizing errors in order to derive a trained object model (M) by constraining the generic object model to be scan-specific, object-specific and pose-specific An output interface for providing at least a set of trained models (M), maximally consistent with the measured object scan data (S).