Human vision is the most flexible and powerful of the five senses when it comes to understanding the immediate environment. The human eye distinguishes between thousands of hues, provides acuity throughout a great range of ambient lighting, and perceives objects in three dimensions.
Computer vision can provide these functions, and more, using visible and infrared cameras, imaging scanners, ultrasonic probes, and other sensors to gather data for processing by machines. Data processing can use classic image analysis procedures and can computationally mimic human neural physiology.
Computer vision enables robots to navigate orchards and battlefields or to follow precisely the contours of a fighter aircraft. Image analysis and pattern recognition algorithms locate tumors in the body, identify customers at bank automatic teller machines, and detect hidden cracks in machined parts. The possible applications of computer vision are almost endless.
With its expertise in advanced computer technology, Southwest Research Institute (SwRI) conducts research and applied engineering projects in a wide range of computer vision technologies including:
Vision-Based Motion Control and Guidance
Computer vision enhances robot capabilities to accommodate variations in position and orientation of workspace objects. Computer vision permits object identification and workspace analysis in support of strategic motion planning, and it provides feedback to control repair, positioning, and assembly tasks.
SwRI's vision-assisted robotic systems include:
Industrial Automation and Quality Control
Computer vision systems provide quality control and real-time feedback for industrial processes, overcoming physical limitations and subjective judgment of humans. Automated systems capable of high-speed measurement of parts and flaws yield unprecedented quality.
Computer vision-based industrial quality systems at SwRI include:
Automated Precision Measurement
Computer vision techniques automate measurement tasks that require high precision and accuracy. The resulting measurements are used to position and orient parts, provide numerical data for complex computations, and monitor the performance and efficiency of mechanical devices.
Institute-developed applications include:
Computer Vision Research
SwRI uses computer vision to investigate the discipline itself and to solve problems in other disciplines.
Institute research activities include:
Additional Sensing and Computational Capabilities
SwRI's broad range of expertise and the interdisciplinary composition of project teams provide a synergistic advantage to engineering and development efforts. SwRI is continually expanding its engineering capability.
SwRI's computer vision engineers have contributed to a wide range of projects incorporating alternate sensors and computer technologies, including:
Institute staff members have supported technology assessments for:
SwRI supports computer vision research and development with modern laboratories that contain high-performance, dedicated image-processing systems, graphics workstations, and personal computer-based image processing systems. Support laboratory equipment includes optical benches, mounting fixtures, and precision-positioning stages, which enable convenient configuration prototyping. As an independent research and development organization, SwRI can use proven off-the-shelf hardware and software for production system application. If commercial equipment does not satisfy project requirements, the Institute offers comprehensive onsite development capabilities.
This brochure was published in May 1999. For more information about computer vision, contact Dr. Mike Rigney, Institute Engineer, Automation and Data Systems Division, Southwest Research Institute, P.O. Drawer 28510, San Antonio, Texas 78228-0510, Phone (210) 522-3678, Fax (210) 522-5499.