Technical Papers

Tone Editing

Monday, 8 August 3:45 pm - 5:15 pm | East Building, Ballroom C
Session Chair: Karol Myszkowski, Max-Planck-Institut für Informatik

HDR-VDP-2: A Calibrated Visual Metrics for Visibility and Quality Predictions in All Luminance Conditions

A metric for predicting visible differences (discrimination) and image quality (MOS) in high-dynamic-range images. The metric is based on new contrast sensitivity measurements and calibrated against several datasets. The visibility predictions are shown to be improved compared to the original HDR-VDP and VDP metrics.

Rafal Mantiuk
Bangor University

Kil Joong Kim
Seoul National University

Allan Rempel
The University of British Columbia

Wolfgang Heidrich
The University of British Columbia

A Versatile HDR Video Production System

An optical architecture for HDR imaging that allows simultaneous capture of high-, medium-, and low-exposure images, and an HDR merging algorithm that avoids undesired artifacts. This paper explains implementation of a prototype HDR-video system and present sresults from the acquired HDR video.

Michael D. Tocci
Contrast Optical Design & Engineering, Inc. and University of New Mexico

Chris Kiser
University of New Mexico

Nora Tocci
Contrast Optical Design & Engineering, Inc.

Pradeep Sen
University of New Mexico

Perceptually Based Tone Mapping for Low Light Conditions

A perceptually based algorithm for modeling the color shift that occurs for human viewers in low-light scenes. Known as the Purkinje effect, this color shift occurs as the eye transitions from photopic, cone-mediated vision in well-lit scenes to scotopic, rod-mediated vision in dark scenes.

Adam Kirk
University of California, Berkeley

James O'Brien
University of California, Berkeley

Illumination Decomposition for Material Recoloring With Consistent Interreflections

Changing the color of an object is a basic image-editing operation, but a high-quality result must also preserve natural shading. This approach decomposes illumination into direct lighting and indirect illumination from individual materials to consistently modify material colors and their associated interreflections.

Robert Carroll
University of California, Berkeley

Ravi Ramamoorthi
University of California, Berkeley

Maneesh Agrawala
University of California, Berkeley