Kim, Jaewon Horstmeyer, Roarke Kim, Ig-Jae Raskar, Ramesh 2024-01-20T17:04:04Z 2024-01-20T17:04:04Z 2021-09-02 2011-05 0730-0301 https://pubs.kist.re.kr/handle/201004/130423 We present a photographic method to enhance intensity differences between objects at varying distances from the focal plane. By combining a unique capture procedure with simple image processing techniques, the detected brightness of an object is decreased proportional to its degree of defocus. A camera-projector system casts distinct grid patterns onto a scene to generate a spatial distribution of point reflections. These point reflections relay a relative measure of defocus that is utilized in postprocessing to generate a highlighted DOF photograph. Trade-offs between three different projector-processing pairs are analyzed, and a model is developed to help describe a new intensity-dependent depth of field that is controlled by the pattern of illumination. Results are presented for a primary single snapshot design as well as a scanning method and a comparison method. As an application, automatic matting results are presented. English ASSOC COMPUTING MACHINERY SURFACE ORIENTATION SEPARATION ROBOT Highlighted Depth-of-Field Photography: Shining Light on Focus Article 10.1145/1966394.1966403 1 ACM TRANSACTIONS ON GRAPHICS, v.30, no.3 ACM TRANSACTIONS ON GRAPHICS 30 3 scie scopus 000290853500009 Computer Science, Software Engineering Computer Science Article SURFACE ORIENTATION SEPARATION ROBOT Algorithms Design Computational photography HDOF photo depth of field active illumination matting image processing