TO 10
It sounds like the test objects you're referring to are designed for rapid and quantitative assessments of image quality. These assessments likely involve determining the threshold detection index, which is a measure of the ability to detect certain features or details in an image.
The results obtained from these tests can be plotted on a Threshold Detection Index Curve. This curve likely represents the relationship between the detectability of specific features and relevant parameters, providing a visual representation of the image quality performance. This type of analysis is valuable for evaluating and comparing the performance of imaging systems, helping to ensure consistent and reliable results in various applications.