Sketch-based aesthetic product form exploration from existing images using piecewise clothoid curves

We present a new sketch-based product form exploration technique that works from images and sketches of existing products. At the heart of our approach, is a multi-stroke curve beautification method and a curve-based image deformation algorithm. The proposed approach converts groups of strokes into piecewise clothoid curves in order to produce visually pleasing shapes. The deformation diffusion algorithm then spatially distributes the user specified deformations through out the image to produce smooth transformations from the original image to the resulting image. We demonstrate the technique on a variety of images including photo-realistic images, real product images, and sketches.

► We present a sketch-based product form exploration technique that works from images.
► New product forms can be effortlessly explored via sketched modifications.
► Automatically fitted piecewise clothoid curves ensure visually aesthetic results.
► A diffusion algorithm distributes the modifications to produce smooth deformations.