Results

This scene comprises of a wax candle inside a white clay pot, a marble statue of Atlas, a V-groove made of two diffuse planes, and a polyresin bust, in this depth order. The wax candle and the marble statue exhibit a significant amount of sub-surface scattering. Also, there are inter-reflections in the V-groove concavity and between the folds of the statues.

The approximate depths of the clay-pot, the marble statue and the polyresin bust are 150cm, 200cm and 270cm respectively. The depth range of the scene (~120cms) is greater than the depth of focus of the projector (~30cms). Click on images for high-resolution versions.

Separation using multiple focal planes (Section 6.1). Notice the high global component on the candle and in the V-groove concavity. On the other hand, global component is low for the clay pot.

Separation using a single focal plane and depth map of the scene (Section 6.2). This separation result is more noisy as compared to the multiple focal planes algorithm. However, this algorithm requires only a single focal plane position of the projector and a depth map of the scene.

Separation using a single focal plane [15]. Since the depth of the scene is larger than the depth of field of the projector, incorrect separation is produced. Here, the projector focal plane is placed behind the scene. Notice the incorrect separation in the front of the scene: low direct component and high global component on the clay-pot.

This scene exhibits significant sub-surface scattering due to the presence of a variety of organic materials: peppers, two pumpkins, the green plant, some marbles and eggs and a flower-pot, in this depth order. Additionally, there are inter-reflections between the eggs and between the peppers. Click on images for high-resolution versions.

Separation using multiple focal planes (Section 6.1).

Separation using a single focal plane and depth map of the scene (Section 6.2).

Separation using a single focal plane [15]: Different separations are produced as the projector focal plane is moved from front to the back of the scene. For each focal plane position, the computed separation is incorrect at scene points which are distant from the focal plane.

Here we demonstrate the validity of our techniques on a scene with complex BRDFs, textures and geometry. This scene consists of objects with highly specular (metal) and anisotropic (velvet) BRDFs. There are objects with complex textures as well as objects with no texture. In addition, the metal ball has a complex shape with a significant amount of occlusions and the fur teddy-bear has fine geometric structure. There is global illumination in the fur and reflections from the shiny table-top. Click on images for high-resolution versions.

Separation using multiple focal planes (Section 6.1).

This scene comprises of different kinds of soaps and candles made of different kinds of wax. These objects exhibit varying amounts of translucency due to different material properties and pigments. All the objects are placed at the same depth. Click on images for high-resolution versions.

This scene demonstrates comparisons between real and fake fruits, real and fake flowers and full-fat milk and skim milk. Can you guess which are real and which are fake? Which is full-fat milk and which is skim milk? Real and fake materials exhibit different amounts of translucencies. Also, skimmed milk is more translucent as compared to full-fat milk. Click on images for high-resolution versions.

Separation using multiple focal planes (Section 6.1).