nx_pose_classify.nx

nx_pose_classify.nx -- classify body pose from face + torso geometry. Heuristic geometric classifier — given face and torso bounding boxes (already produced by nx_region), emit the most-likely pose enum that drives nx_breast_drape_pose and other pose-aware detectors. Decision tree: 1. Torso wider than tall (aspect < 1.0): → LAYING_BACK if face above torso center → FACE_DOWN_ASS_UP / ALL_FOURS otherwise 2. Face strongly offset horizontally from torso center: → SIDE_PROFILE if offset > 40% of torso width → RECLINING_TWISTED if offset 20..40% 3. Face above torso top with normal alignment: → STANDING_FACING (or LEANING_FORWARD if torso aspect very tall) 4. Face overlaps with torso vertically: → ARCHED_PRESENTING (bent / kneeling) if torso aspect 1..1.4 Pose enum values mirror nx_breast_drape_pose for direct routing. Output flat-array (result[]): result[0] = pose_enum result[1] = confidence_q10 (0=guess, 1024=clear signal) result[2] = torso_aspect_q10 result[3] = face_x_offset_from_torso_center_q10 (% of torso width) result[4] = face_above_torso (0=overlap, 1=fully above)