Drawing is a cognitive tool that makes the invisible contents of mental life visible. Humans
use this tool to produce a remarkable variety of pictures, from realistic portraits to schematic …

Online contract labor portals (ie, crowdsourcing) have recently emerged as attractive
alternatives to university participant pools for the purposes of collecting survey data for …

Intrinsic image decomposition separates an image into a reflectance layer and a shading
layer. Automatic intrinsic image decomposition remains a significant challenge, particularly …

Understanding perception is critical to effective visualization design. With its low cost and
scalability, crowdsourcing presents an attractive option for evaluating the large design space …

Micro-task markets such as Amazon's Mechanical Turk represent a new paradigm for
accomplishing work, in which employers can tap into a large population of workers around …

We propose a method for reconstructing 3D shapes from 2D sketches in the form of line
drawings. Our method takes as input a single sketch, or multiple sketches, and outputs a …

The numerous works on media retargeting call for a methodological approach for evaluating
retargeting results. We present the first comprehensive perceptual study and analysis of …

The appearance of surfaces in real-world scenes is determined by the materials, textures,
and context in which the surfaces appear. However, the datasets we have for visualizing and …

Online labor markets, such as Amazon's Mechanical Turk (MTurk), provide an attractive
platform for conducting human subjects experiments because the relative ease of …

This tutorial describes the geometry and algorithms for generating line drawings from 3D
models, focusing on occluding contours. The geometry of occluding contours on meshes …