# The darker-is-deeper heuristic for the perception of 3D shape from shading: Is it perceptually or ecologically valid?

> Research article (Journal of Vision, 2015) · cited 16× · AI/ML

**Wikidata**: [openalex:W2095618180](https://www.wikidata.org/wiki/openalex:W2095618180)  
**Source**: https://4ort.xyz/entity/the-darker-is-deeper-heuristic-for-the-perception-of-3d-shape-from-shading-is-it-perceptually-or-ecologically-valid