Range finding method and apparatus
Patent 4695156 Issued on September 22, 1987. Estimated Expiration Date: 
July 3, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
July 3, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2933008 3566139 3578863 3674369 3752580 3783294 3811011 Passive stereovision range finder Device for counting and calculating Digital auto focus InventorAssigneeApplicationNo. 06/882006 filed on 07/03/1986US Classes:356/3.14, Using at least a pair of viewing axes348/139, Multiple cameras on baseline (e.g., range finder, etc.)356/611, By stereo901/47OpticalExaminersPrimary: Buczinski, Stephen C.Attorney, Agent or FirmInternational ClassesG01C 11/00 (20060101)G01C 11/06 (20060101) G01S 11/00 (20060101) G01S 11/12 (20060101) AbstractA range finding apparatus includes a pair of spaced apart cameras which provide signals that are digitalized, stored in frame buffers, and provided to a computer that provides a range map of a target object viewed by the cameras. The computer optimizes a disparity function by minimizing a cost functional, thereby finding the range at different points on the surface of the target object based on variations in illumination, reflectivity, and texture.Field of SearchCONTOUR PLOTTING | |
