Corporate Management
Corporate Management (President):
Gary Robertson has worked solely in the field of close range photogrammetry for over twenty-five years. He has undertaken photogrammetric consulting and research and development in all areas of science and engineering, including machine vision systems and microdensitometry.
He is a member of the American Society of Photogrammetry and Remote Sensing and is a registered Certified Photogrammetrist (ASP). He has authored over Fifty technical papers in areas of Aerospace, Forensics, Geotechnical and Civil Engineering, Robotics and Medical applications. He has been a contributing author for several books including the new edition of the "Handbook of Non-Topographic Photogrammetry".
Gary has pioneered several developments in the field of close range photogrammetry including the first automated photogrammetric scanner, aerospace applications, architectural and deformation studies, geotechnical and mining applications, expanding application areas for non-metric images and "Unconventional Technology Applications" such as medical applications three dimensional ultrasound, Real Time Photogrammetry and accident and forensic investigation procedures.
He has worked internationally on accident and forensic applications. He has developed procedures for photogrammetric applications in the accident and forensic field that are being used on an international basis.
In addition he pioneered work with Remote Piloted Vehicles in the study of flight and crash analysis using movie cameras, this led to the development of specialized techniques and procedures. These procedures were later used in the analysis of aircraft, motor vehicle and industrial accident investigations using photogrammetry in addition to developing new procedures for determining aircraft landing parameters. Gary Robertson has been involved in court litigation utilizing close range photogrammetric procedures in Canada and the United States since 1980.
Corporate History:
Because of the specialized nature, and the diversification of GRA applications, special equipment and application software had to be designed and manufactured. Specialized hardware designs consist of cameras and accessories, projectors, digitized stereocomparators, real time digital systems, and sub-micron accuracy automated scanners. In 1981 GRA with Northrop Corp. developed the first automated photogrammetric measuring system. This development led to new scanner designs in 1983 and the development of the PASS 2000 system in 1984. It was published that the system was the most advanced in the world. The PASS 2000 is designed as a multi-roll system for all areas of application. The system has the capability of handling thousands of frames of data, and is still the only scanner that can measure and enhance any form of imagery (e.g.,. x-ray, ultrasound and regular photographic film). Proven benchmark studies showed accuracy's of more than 1 part in 250,000 of the object with this system.
From 1980 to present GRA has been at the leading edge of high resolution digital imagery, this includes design of scanning heads and hardware and software interfaces for high resolution scanners 12-16 bit resolutions with PMT (Photo Multiplier Tube), and CCD technologies.
GRA started to apply on a wider basis high resolution imaging, and robotic instrument capabilities too forensic and accident investigations. Initial work included pathology, and document analysis. Program's began with International Police agencies. This work entailed identification of latent prints from photographs, developing techniques for blood splatter analysis, identification and measurement of suspects from surveillance cameras, and recording of homicide scenes.
Close Range and "Real Scene Photogrammetry" procedures are being called upon by more agencies than ever before. Due to the diversity of the type of imagery required for investigation. GRAI developed the CPIPS (Custom Photogrammetric Image Processing System) in 1990 along with procedures for "Real Scene Photogrammetry". The CPIPS represents a system approach for investigator's requirements for equipment that can provide accurate measurement and image enhancement of accident or crime scenes. Utilizing the concept of the GRA PASS 2000 (photogrammetric automatic scanning system) and Digtab systems, any form of imagery such as x-ray, ultrasound, film of any format size including video or digital images can be analyzed. The system utilizes a document analysis and authoring system. Utilizing Real Scene Photogrammetry, accurate 3D models of accident and crime scenes can also be prepared.
GRA software and has been certified and benchmarked by various military and investigative agencies in numerous countries.
GRA have established, close range photogrammetric departments with several government agencies in several countries. The services included initial establishment of the department, hardware, and software acquisition, training of the personnel and review and selection of the department personnel, review of projects work and public reports. In addition to represent the agencies in hearings and court cases.
