To visualize, measure and know the dimensions or deformations of micrometric surfaces of little pieces, mirrors, lenses of different optical equipment such as modern microscopes, powerful electronic binoculars, lasers, metal surfaces, etc; it is necessary to apply non-destructive or non-invasive techniques. Interferometry is a branch of Optical Metrology responsible for using measurement techniques from the interference of two or more light beams. In this article we present the soft computation technique that combines excellently Genetic Algorithms with the Guided Frequency Demodulation technique. With the combination of both techniques estimating the parameters or elements that correspond to the phase of the test object; this phase provides all the characteristics of the micro measurement such as shape, topography, dimensions, etc. The implementation of these techniques showed excellent performance in closed fringe patterns.