1. A method of juxtaposing still and dynamic imagery to generate a cliplet, comprising: setting a first subset of a spatiotemporal volume of pixels in an input video as a static input segment from the input video; mapping the static input segment to a background of the cliplet, wherein the background is repeated across output frames of the cliplet; setting a second subset of the spatiotemporal volume of pixels in the input video as a dynamic input segment from the input video based on a selection of a spatial region within the input video, a start time within the input video, and an end time within the input video; refining the dynamic input segment at least one of spatially or temporally; mapping, based on a predefined temporal mapping function, the dynamic input segment as refined to an output segment of the cliplet defined within at least a portion of the output frames of the cliplet, wherein the predefined temporal mapping function is one of a play temporal mapping function, a loop temporal mapping function, or a mirror temporal mapping function; and compositing the output segment over the background for the output frames of the cliplet.