Dynamic real-time generation of three-dimensional avatar models of users based on live visual input of users' appearance and computer systems and computer-implemented methods directed to thereof

A method, comprising:

• training, by at least one processor, at least one face detection regressor with at least one synthetic face model database to obtain at least one face detection trained regressor;
• wherein the at least one synthetic face model database comprises a plurality of facial features;
• wherein each facial feature is identified by a pre-defined set of parameters;
• obtaining, by the at least one processor, a plurality of frames having a visual representation of a face of at least one person;
• extracting, by the at least one processor, a plurality of local features from each frame of the plurality of frames;
• applying, by the at least one processor, for each frame, the at least one face detection trained regressor to the plurality of local features to detect or to track a presence of a face of a particular individual, based, at least in part, on:
• i) the plurality of facial features,
• ii) the plurality of local features, and
• iii) at least one pre-defined hyperparameter;
• constructing, by the at least one processor, an intermediate multi-dimensional face model of the face of the particular individual based on the detected or tracked presence of the face of the particular individual;
• applying, by the at least one processor, machine learning to determine a plurality of features of an intermediate multi-dimensional head model of the particular individual based on the detected or tracked presence of the face of the particular individual;
• constructing, by the at least one processor, at least one multi-dimensional avatar of the particular individual based, at least in part, on:
• i) the intermediate multi-dimensional face model of the particular individual, and
• ii) the plurality of features of the intermediate multi-dimensional head model of the particular individual;
• and
• utilizing, by the at least one processor, the at least one multi-dimensional avatar of the particular individual to perform at least one activity associated with the particular individual.