FETV: A Benchmark for Fine-Grained Evaluation of Open-Domain Text-to-Video Generation

• URL: http://arxiv.org/abs/2311.01813v3
• Date: Tue, 26 Dec 2023 05:27:46 GMT
• Title: FETV: A Benchmark for Fine-Grained Evaluation of Open-Domain Text-to-Video Generation
• Authors: Yuanxin Liu, Lei Li, Shuhuai Ren, Rundong Gao, Shicheng Li, Sishuo Chen, Xu Sun, Lu Hou
• Abstract summary: Open-domain text-to-video (T2V) generation models have made remarkable progress. Existing studies lack fine-grained evaluation of T2V models on different categories of text prompts. It is unclear whether the automatic evaluation metrics are consistent with human standards.
• Score: 27.620973815397296
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Recently, open-domain text-to-video (T2V) generation models have made remarkable progress. However, the promising results are mainly shown by the qualitative cases of generated videos, while the quantitative evaluation of T2V models still faces two critical problems. Firstly, existing studies lack fine-grained evaluation of T2V models on different categories of text prompts. Although some benchmarks have categorized the prompts, their categorization either only focuses on a single aspect or fails to consider the temporal information in video generation. Secondly, it is unclear whether the automatic evaluation metrics are consistent with human standards. To address these problems, we propose FETV, a benchmark for Fine-grained Evaluation of Text-to-Video generation. FETV is multi-aspect, categorizing the prompts based on three orthogonal aspects: the major content, the attributes to control and the prompt complexity. FETV is also temporal-aware, which introduces several temporal categories tailored for video generation. Based on FETV, we conduct comprehensive manual evaluations of four representative T2V models, revealing their pros and cons on different categories of prompts from different aspects. We also extend FETV as a testbed to evaluate the reliability of automatic T2V metrics. The multi-aspect categorization of FETV enables fine-grained analysis of the metrics' reliability in different scenarios. We find that existing automatic metrics (e.g., CLIPScore and FVD) correlate poorly with human evaluation. To address this problem, we explore several solutions to improve CLIPScore and FVD, and develop two automatic metrics that exhibit significant higher correlation with humans than existing metrics. Benchmark page: https://github.com/llyx97/FETV.

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