TC-Bench: Benchmarking Temporal Compositionality in Conditional Video Generation

ICLR 2025 Conference Submission12250 Authors

Keywords: Video Generation Benchmark; Text-to-Video Generation; Compositional Video Generation

TL;DR: We propose a new benchmark suite to evaluate temporal compositionality for conditional video generation

Abstract: Video generation has many unique challenges beyond those of image generation. The temporal dimension introduces extensive possible variations across frames, over which consistency and continuity may be violated. In this study, we move beyond evaluating simple actions and argue that generated videos should incorporate the emergence of new concepts and their relation transitions like in real-world videos as time progresses. To assess the \textbf{T}emporal \textbf{C}ompositionality of video generation models, we propose TC-Bench, a benchmark of meticulously crafted text prompts, corresponding ground truth videos, and robust evaluation metrics. The prompts articulate the initial and final states of scenes, effectively reducing ambiguities for frame development and simplifying the assessment of transition completion. In addition, by collecting aligned real-world videos corresponding to the prompts, we expand TC-Bench's applicability from text-conditional models to image-conditional ones that can perform generative frame interpolation. We also develop new metrics to measure the completeness of component transitions in generated videos, which demonstrate significantly higher correlations with human judgments than existing metrics. Our comprehensive experimental results reveal that most video generators achieve less than ～20% of the compositional changes, highlighting enormous space for future improvement. Our analysis indicates that current video generation models struggle to interpret descriptions of compositional changes and dynamically map varied semantics across different time steps.

Primary Area: datasets and benchmarks

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Submission Number: 12250