- Author
- Yonemura, G. T.
- Title
- Considerations and Standards for Visual Inspection Techniques.
- Coporate
- National Bureau of Standards, Washington, DC
- Report
- NBSIR 76-1142, October 1976, 17 p.
- Distribution
- Available from National Technical Information Service
- Keywords
- visual standards | visual performance | nondestructive inspection | vision tests | visual inspection
- Abstract
- When we look at the capacity of the human visual system we see that man can adjust to a wide variety of operating conditions. But, unless we have detailed information on the conditions for which these processes are to be standardized and quantitative descriptions of the tasks to be performed, the advantages to be obtained by visual science applications cannot be optimally utilized. The Modulation Transfer Function would be an image evaluation technique applicable to NDT. Standardized tests to assess day to day performance as well as initial capacities should be developed. These tests should be derived from visual capacities correlated with the tasks to be performed.