Understanding Depth of Field Effects in Rendering
Depth of Field (DOF) refers to the range between the nearest and farthest objects in an image that appear sharp. This article explores DOF effects in rendering, multipass approaches in graphics, and current progress in developing depth-variant filters for enhancing image clarity and focus. The goals include applying these techniques to videos, solving occlusion challenges, ensuring temporal coherence, and enabling real-time rendering using GPGPU technology.
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Presentation Transcript
Depth of Field Effects Rendering Qiao Congbin Email:qiaocongbin@163.com
What is Depth of Field (DOF) Wiki: depth of field (DOF), also called focus range or effective focus range, is the distance between the nearest and farthest objects in a scene that appear acceptably sharp in an image.
Related Works Multipass approaches 2010 TOG
Related Works Multipass approaches Light field approaches 2010 PG
Related Works Multipass approaches Light field approaches Post-processing approaches 2009 TVCG
Current Progress Depth-Variant Anisotropic Filters Framework filtering Original Image background region scattering filter = classify Final Result in-focus region in-focus filter = Depth Map foreground region gathering filter = RCOCMap
Current Progress Depth-Variant Anisotropic Filters Result input output
Our Goals Apply to videos Solves occlusion Demands temporal coherence Real-time Rendering GPGPU
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