Abstract: A high torque mechanism connected to a piston arranged within a cylinder and connected to a connecting rod for an engine may include features of a triangular link and a guide arm. The high torque mechanism may provide an upgrade to the conventional hardware with new elements that provide higher torque and thus allowing a reduction of fuel consumption versus a conventional engine of the same power. The high torque mechanism may include a triangular link, a crankshaft, and a guide arm. The connecting rod may be connected to the piston and a first joint on the triangular link. The guide arm may be connected to a second joint on the triangular link and a guide pivot point. The crankshaft may be connected to a third joint on the triangular link and a crank pivot point. The triangular link and the guide arm make the engine torque considerably higher in various crank ranges where the in-cylinder combustion pressure is high.

Abstract: A method and system for full-field fringe-projection for 3-D surface-geometry measurement, referred to as “triangular-pattern phase-shifting” is disclosed. A triangular grey-scale-level-coded fringe pattern is computer generated, projected along a first direction onto an object or scene surface and distorted according to the surface geometry. The 3-D coordinates of points on the surface are calculated by triangulation from distorted triangular fringe-pattern images acquired by a CCD camera along a second direction and a triangular-shape intensity-ratio distribution is obtained from calculation of the captured distorted triangular fringe-pattern images. Removal of the triangular shape of the intensity ratio over each pattern pitch generates a wrapped intensity-ratio distribution obtained by removing the discontinuity of the wrapped image with a modified unwrapping method. Intensity ratio-to-height conversion is used to reconstruct the 3-D surface coordinates of the object.

Abstract: A method and system for full-field fringe-projection for 3-D surface-geometry measurement, referred to as “triangular-pattern phase-shifting” is disclosed. A triangular grey-scale-level-coded fringe pattern is computer generated, projected along a first direction onto an object or scene surface and distorted according to the surface geometry. The 3-D coordinates of points on the surface are calculated by triangulation from distorted triangular fringe-pattern images acquired by a CCD camera along a second direction and a triangular-shape intensity-ratio distribution is obtained from calculation of the captured distorted triangular fringe-pattern images. Removal of the triangular shape of the intensity ratio over each pattern pitch generates a wrapped intensity-ratio distribution obtained by removing the discontinuity of the wrapped image with a modified unwrapping method. Intensity ratio-to-height conversion is used to reconstruct the 3-D surface coordinates of the object.