Rezults on the Optical Transfer Functionof the Optical Systems Evaluation by Slanted Edge Method
Teodor Necsoiu, George Bostan, Paul Enache Sterian · Journal of Physics Conference Series · 2019
Abstract The study of the Optical Transfer Function of optical systems by the slanted edge method helps us to calculate and to improve the performances of the Digital Camera. Is known from theory, between the subject of photography and his image, there will always be a small difference, caused by the optical transfer function, which may contain various components that limit the resolution. The article describes a new method of studying the optical transfer function to improve their optical resolution. With regard to the optical devices used in security applications, advanced requirements are necesary for image quality control. Optical sensors become more and more powerful and intelligent with advanced image features analysis. If in the past, to check the optical resolution, the microdensitometer was used, now this function can be performed by the digital optical sensor.The dimensions of the photosensitive pixels of optoelectronic chip are sufficiently good to test the resolution of the lens systems.