1. A method for establishing excitation parameters for a MR imaging captured by an MR device, comprising: parallel exciting the MR device using a plurality of transmit channels of the MR device; parallel capturing image data of an examination object using a plurality of receive channels of the MR device; determining elements of a k-space covariance matrix for a signal noise of the captured image data in a k-space; mathematically determining elements of an image space covariance matrix for a plurality of voxels in a region of interest of the examination object as a function of the k-space covariance matrix; and establishing the excitation parameters as a function of the elements of the image space covariance matrix.