Focus on a joint research project: CRISP

CRISP (2011-2016)

Creating and rendering images based on the study of perception

Principal Investigators :

  • Dr. Adrien Bousseau, GraphDeco (previously REVES) project-team, Inria Sophia Antipolis Médittéranée
  • Prof. Maneesh Agrawala, University of California Berkeley (now at Stanford)

Research objectives:

CRISP explores novel ways to create, render and interact with images based on the study of human perception. The participants of CRISP share complementary expertise in computer graphics, human computer interaction and human visual perception.

Scientific achievements:

During the first 3 years, the team made significant progress on its three research themes:

Experiment to measure perceived distortion

Experiment to measure perceived distortion

  • Perception: Work relates to extensive studies evaluating how materials are perceived in stylized images (specifically painting and cartoon) and how people perceive distortions in image-based streetlevel visualizations, such as Google Street View.
  • Rendering: Results include a new algorithm to render objects with rough refraction in real-time. The method achieves real-time performance by approximating the complex light transport phenomena involved in rough refractions while producing results visually similar to images computed with an offline physically-based path tracer.
  • Interaction: Contribution includes an automatic system to facilitate the design of effective lighting for material depiction. The system optimizes environment map lighting according to guidelines on lighting design for material depiction. The team has also introduced “vector shade trees” that bring to vector graphics the flexibility of modular shading as commonly used in 3D rendering.

Publications and Awards:

  • 3 Journal articles published in ACM Transactions on Graphics, 2 articles in Computer Graphics Forum, 1 article in IEEE Transactions on Visualization and Computer Graphics.
  • Best paper award at ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games, 2011.

Selected publication:

Peter Vangorp, Christian Richardt, Emily A. Cooper, Gaurav Chaurasia, Martin S. Banks, George Drettakis, Perception of Perspective Distortions in Image-Based Rendering, ACM Transactions on Graphics (SIGGRAPH Conference Proceedings), Volume 32, Number 4, jul 2013.

Follow up:

CRISP pursues its collaboration along the 3 directions of: Perception, Rendering and Interaction.