Abstract: The present invention provides a composition and process for preparing a depolymered paper product from polymer-coated paper waste, comprising the steps of treating shredded polymer-coated paper waste with a polymer removing composition comprising a mixture of a solvent component, a surfactant component, and an acidic component.

Abstract: A method of local feature identification comprises retrieving data representing a lightfield, forming an epipolar volume (V) from the retrieved data, applying a transform to epipolar planes retrieved from the epipolar volume, so as to represent the epipolar planes in a new space, identifying a plurality of epipolar lines, and identifying local features (fp) based on at least some of the epipolar lines.

Abstract: System comprising at least one sensor configured to take a set of images from different viewpoints of a scene; a processor configured to identifying a point source represented in the images of a set of images; computing for each image of the set of images the subspace of potential locations of the point source in the scene on the basis of the viewpoint or a viewpoint region of the image and on the basis of the subregion of the image representing the point source; and computing a point intersection region of the subspaces of potential locations of the point source of the images of the set of images.

Abstract: A method of local feature identification, comprising the steps of: retrieving data representing a lightfield (101); forming an epipolar volume (V) from the retrieved data; applying a transform to epipolar planes retrieved from said epipolar volume, so as to represent said epipolar planes in a new space (106); identifying a plurality of epipolar lines (107); identifying local features (fp) based on at least some of said epipolar lines (108).