1. A process for generating enhanced resolution images of fibrous tissue located within a portion of a body being sampled, said method including: i) accessing source data representing a distribution of said fibrous tissue orientations within each of a plurality of discrete input voxels defined within said portion based on a first imaging resolution as defined by an input imaging matrix; ii) generating, based on said source data, input streamline data of a first data structure type representing a plurality of fibre tracks, each said fibre track representing an estimated path of fibres in said tissue within said portion; iii) generating, based on said input streamline data, a three-dimensional output imaging matrix of a second data structure type defining a grid of discrete output voxels within said portion based on a second imaging resolution that provides higher imaging resolution than said first imaging resolution; iv) generating, for each said output voxel, image data including intensity data representing a level of intensity based on a number of said fibre tracks at a location corresponding to said output voxel; and v) generating display data for controlling a display device to display an enhanced image generated based on said image data.