method for high-resolution observation of moirémustern after the phasenshiftverfahren for identifying oberflächenverformungen, deviations, topographies and device for implementation of the procedure

摘要

The method uses the sensor array of a camera as the image transducer and the storage and/or computer processing of object, reference and/or noire patterns. The sensor array is displaced in one direction by not more than one array division. One or more images is recorded during the displacement. Alternatively, the array is displaced in steps and the images recorded when it is at rest. USE/ADVANTAGE - For use in detecting surface deformations, errors and topography. Higher resolution is achieved than with conventional electronic camera.