Implementação de um modelo fenomenológico para geração de imagens CRT

Abstract

In this work, we address the problem of properly displaying low resolution images on high resolution displays by developing and validating a model to simulate the typical rendering of low resolution images on a Cathode Ray Tube (CRT) monitor. A model that includes a slot mask-type geometry and a pipeline of processing steps for simulating the various effects due to a CRT display was created and applied on the source images. These raw source images were also rendered on a real CRT device and subsequently photographed to empirically validate the results of the proposed model. It is important to stress that our model does not consist of a simple shader image mask as used in many video game emulators, but includes multiple steps of input treatment and filtering in order to replicate the physical processes as closely as possible. As the obtained results suggest, there is a considerable amount of visual similarity between the real and our model’s synthetic images.