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Non-photorealistic Camera: Depth Edge Detection and Stylized Rendering using Multi-Flash Imaging
 

Summary: Non-photorealistic Camera:
Depth Edge Detection and Stylized Rendering using Multi-Flash Imaging
Ramesh Raskar Kar-Han Tan
Mitsubishi Electric Research Labs (MERL)
Rogerio Feris
UC Santa Barbara
Jingyi Yu
MIT
Matthew Turk
UC Santa Barbara
Figure 1: (a) A photo of a car engine (b) Stylized rendering highlighting boundaries between geometric shapes. Notice the four spark plugs
and the dip-stick which are now clearly visible (c) Photo of a flower plant (d) Texture de-emphasized rendering.
Abstract
We present a non-photorealistic rendering approach to capture and
convey shape features of real-world scenes. We use a camera with
multiple flashes that are strategically positioned to cast shadows
along depth discontinuities in the scene. The projective-geometric
relationship of the camera-flash setup is then exploited to detect
depth discontinuities and distinguish them from intensity edges due
to material discontinuities.

  

Source: Ahuja, Narendra - Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign

 

Collections: Computer Technologies and Information Sciences; Engineering