Wearable deformable conductive sensors for human motion capture including trans-joint pitch, yaw, and roll
This invention comprises wearable deformable electromagnetic energy pathways which enable ambulatory (camera-free) three-dimensional human body motion capture including trans joint pitch, yaw, and roll. It can be embodied in a plurality of elongate electrically-conductive strips which diverge as they span a body joint in a proximal to distal manner and pairs of electromagnetic energy emitters and receivers which are in electromagnetic communication with the strips. In an example, conductive-fluid-filled lumens can be used instead of electrically-conductive strips.
1. A wearable deformable sensor for human motion capture comprising:
a deformable elongate electrically-conductive central strip which is configured to span a body joint in a proximal-to-distal manner;
a central electromagnetic energy emitter and a central electromagnetic energy receiver which are in electromagnetic communication with the deformable elongate electrically-conductive central strip;
a proximal array of arcuate deformable electrically-conductive strips, wherein a right set of the strips in the proximal array of arcuate deformable electrically-conductive strips are to the right of the deformable elongate electrically-conductive central strip and a left subset of the strips in the proximal array of arcuate deformable electrically-conductive strips are to the left of the deformable elongate electrically-conductive central strip, wherein strips in the proximal array of arcuate deformable electrically-conductive strips are proximal relative to the middle of the deformable elongate electrically-conductive central strip, and wherein strips in the proximal array of arcuate deformable electrically-conductive strips diverge from each other as they extend in a proximal direction;
a proximal array of electromagnetic energy emitters and electromagnetic energy receivers which are in electromagnetic communication with the proximal array of arcuate deformable electrically-conductive strips;
a distal array of arcuate deformable electrically-conductive strips, wherein a right set of the strips in the distal array of arcuate deformable electrically-conductive strips are to the right of the deformable elongate electrically-conductive central strip and a left subset of the strips in the distal array of arcuate deformable electrically-conductive strips are to the left of the deformable elongate electrically-conductive central strip, wherein strips in the distal array of arcuate deformable electrically-conductive strips are distal relative to the middle of the deformable elongate electrically-conductive central strip, and wherein strips in the distal array of arcuate deformable electrically-conductive strips diverge from each other as they extend in a distal direction;
a distal array of electromagnetic energy emitters and electromagnetic energy receivers which are in electromagnetic communication with the distal array of arcuate deformable electrically-conductive strips;
wherein changes in body joint configuration cause deformations of the central, proximal, and distal electrically-conductive strips, wherein the deformations cause changes in the transmission of electromagnetic energy from the electromagnetic energy emitters to the electromagnetic energy receivers, and wherein the changes in the transmission of electromagnetic energy are analyzed in order to measure and/or model changes in body joint configuration;
a data processor; and
a power source.