SEA: Evaluating Sketch Abstraction Efficiency via Element-level Commonsense Visual Question Answering

Fuente: arXiv
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Autores principales: Park, Jiho, Choi, Sieun, Seo, Jaeyoon, Sohn, Minho, Kim, Yeana, Kim, Jihie
Formato: Preprint
Publicado: 2026
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author Park, Jiho
Choi, Sieun
Seo, Jaeyoon
Sohn, Minho
Kim, Yeana
Kim, Jihie
author_facet Park, Jiho
Choi, Sieun
Seo, Jaeyoon
Sohn, Minho
Kim, Yeana
Kim, Jihie
contents A sketch is a distilled form of visual abstraction that conveys core concepts through simplified yet purposeful strokes while omitting extraneous detail. Despite its expressive power, quantifying the efficiency of semantic abstraction in sketches remains challenging. Existing evaluation methods that rely on reference images, low-level visual features, or recognition accuracy do not capture abstraction, the defining property of sketches. To address these limitations, we introduce SEA (Sketch Evaluation metric for Abstraction efficiency), a reference-free metric that assesses how economically a sketch represents class-defining visual elements while preserving semantic recognizability. These elements are derived per class from commonsense knowledge about features typically depicted in sketches. SEA leverages a visual question answering model to determine the presence of each element and returns a quantitative score that reflects semantic retention under visual economy. To support this metric, we present CommonSketch, the first semantically annotated sketch dataset, comprising 23,100 human-drawn sketches across 300 classes, each paired with a caption and element-level annotations. Experiments show that SEA aligns closely with human judgments and reliably discriminates levels of abstraction efficiency, while CommonSketch serves as a benchmark providing systematic evaluation of element-level sketch understanding across various vision-language models.
format Preprint
id arxiv_https___arxiv_org_abs_2603_28363
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle SEA: Evaluating Sketch Abstraction Efficiency via Element-level Commonsense Visual Question Answering
Park, Jiho
Choi, Sieun
Seo, Jaeyoon
Sohn, Minho
Kim, Yeana
Kim, Jihie
Computer Vision and Pattern Recognition
A sketch is a distilled form of visual abstraction that conveys core concepts through simplified yet purposeful strokes while omitting extraneous detail. Despite its expressive power, quantifying the efficiency of semantic abstraction in sketches remains challenging. Existing evaluation methods that rely on reference images, low-level visual features, or recognition accuracy do not capture abstraction, the defining property of sketches. To address these limitations, we introduce SEA (Sketch Evaluation metric for Abstraction efficiency), a reference-free metric that assesses how economically a sketch represents class-defining visual elements while preserving semantic recognizability. These elements are derived per class from commonsense knowledge about features typically depicted in sketches. SEA leverages a visual question answering model to determine the presence of each element and returns a quantitative score that reflects semantic retention under visual economy. To support this metric, we present CommonSketch, the first semantically annotated sketch dataset, comprising 23,100 human-drawn sketches across 300 classes, each paired with a caption and element-level annotations. Experiments show that SEA aligns closely with human judgments and reliably discriminates levels of abstraction efficiency, while CommonSketch serves as a benchmark providing systematic evaluation of element-level sketch understanding across various vision-language models.
title SEA: Evaluating Sketch Abstraction Efficiency via Element-level Commonsense Visual Question Answering
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2603.28363