Imaging apparatuses, mosaic image compositing methods, video stitching methods and edgemap generation methods are provided. An exemplary imaging apparatus includes data circuitry configured to provide image data for a plurality of frames of a source and processing circuitry configured to generate mosaic data for the source using the image data, wherein the processing circuitry is configured to convert the image data into a plurality of edgepoints for individual ones of the frames, to identify a plurality of common edgepoints in a first frame and a second frame, to determine a positional representation with respect to the first frame and the second frame using the common edgepoints, and to map image data from one of the first frame and the second frame into the mosaic data using the positional representation to generate a mosaic image of the source using the mosaic data.