초록 ▼

System for optically recognizing and tracking a plurality of objects within a field of vision. Laser (46) produces a coherent beam (48). Beam splitter (24) splits the beam into object (26) and reference (28) beams. Beam expanders (50) and collimators (52) transform the beams (26, 28) into coherent c

System for optically recognizing and tracking a plurality of objects within a field of vision. Laser (46) produces a coherent beam (48). Beam splitter (24) splits the beam into object (26) and reference (28) beams. Beam expanders (50) and collimators (52) transform the beams (26, 28) into coherent collimated light beams (26′28′). A two-dimensional SLM (54), disposed in the object beam (26′), modulates the object beam with optical information as a function of signals from a first camera (16) which develops X and Y signals reflecting the contents of its field of vision. A hololens (38), positioned in the object beam (26′) subsequent to the modulator (54), focuses the object beam at a plurality of focal points (42). A planar transparency-forming film (32), disposed with the focal points on an exposable surface, forms a multiple position interference filter (62) upon exposure of the surface and development processing of the film (32). A reflector (53) directing the reference beam (28′) onto the film (32), exposes the surface, with images focused by the hololens (38), to form interference patterns on the surface. There is apparatus (16′, 64) for sensing and indicating light passage through respective ones of the positions of the filter (62), whereby recognition of objects corresponding to respective ones of the positions of the filter (62) is affected. For tracking, apparatus (64) focuses light passing through the filter (62) onto a matrix of CCD\s in a second camera (16′) to form a two-dimensional display of the recognized objects.

대표청구항 ▼

Apparatus for optically simultaneously recognizing a plurality of objects within a field of vision comprising: (a) a source of a coherent collimated light beam; (b) beam splitter means for splitting said light beam into an object beam and a reference beam; (c) two-dimensional spatial light modulatio

Apparatus for optically simultaneously recognizing a plurality of objects within a field of vision comprising: (a) a source of a coherent collimated light beam; (b) beam splitter means for splitting said light beam into an object beam and a reference beam; (c) two-dimensional spatial light modulation means disposed in said object beam for modulating said object beam with optical information as a function of signals connected to X and Y inputs thereof; (d) television camera means for developing X and Y signals reflecting the contents of its field of vision, said X and Y signals being connected to said X and Y inputs of said two-dimensional spatial light modulation means; (e) hololens means disposed in said object beam subsequent to said two-dimensional spatial light modulation means for focusing said object beam at a plurality of focal points; (f) planar film means disposed with said focal points on an exposable surface thereof for forming a multiple position interference filter upon exposure of said exposable surface and subsequent development processing of said film means; (g) means for directing said reference beam onto said exposable surface of said planar film means to expose said exposable surface in combination with images focused by said hololens means forming interference patterns on said exposable surface; and, (h) means for simultaneously sensing and indicating light passage through respective ones of the positions of said multiple position interference filter following development processing of said exposable surface whereby simultaneous recognition of objects corresponding to respective ones of said positions of said multiple position interference filter is affected.