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arxiv: 2606.08566 · v1 · pith:3ZXGGTNZnew · submitted 2026-06-07 · 💻 cs.CV

Towards Accurate Emotion-Attributed Video Captioning via Fine-grained Emotion-Cause Pair Extraction

Weidong Chen , Cheng Ye , Zhendong Mao , Liping Wang , Xinyan Liu , Yongdong Zhang This is my paper

Pith reviewed 2026-06-27 18:52 UTC · model grok-4.3

classification 💻 cs.CV
keywords emotion-attributed video captioningemotion-cause pair extractionfine-grained video analysisvisual semantic decompositionemotional caption generation
0
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The pith

Extracting emotion-cause pairs from core video segments yields more accurate emotional captions than using overall video features.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The paper claims that emotional video captioning improves when systems first locate the specific motivational causes that trigger emotions inside short video segments. Existing methods instead pull global visual signals across an entire clip, which the authors say introduces redundant information and weakens the emotional signal passed to the caption generator. Their framework decomposes visual content into scene, object and motion concepts, refines emotion features using temporal dynamics plus value-arousal-dominance constraints, then forces alignment between the refined emotion and cause representations through cross-coupling and contrastive loss. If the claim holds, the resulting captions become both factually tighter and more emotionally precise on standard emotional video datasets.

Core claim

A two-round fine-grained emotion-cause pair extraction process, built from a Concept-aware Visual Semantic Decomposition module and a Visual-guided Emotion Interpretable Learning module, followed by cross-coupling of pre- and post-refinement features with contrastive alignment, produces superior emotion-attributed video captions by reducing information redundancy and sharpening emotional cues.

What carries the argument

The fine-grained emotion-cause pair extraction framework that performs concept decomposition, visual-guided emotion refinement, and cross-coupling with contrastive loss to align cause and emotion features.

If this is right

  • Captions gain both factual accuracy and emotional richness because redundant visual signals are filtered out before generation.
  • Emotion perception becomes more interpretable through the explicit pairing of causes with refined emotion vectors.
  • Performance gains appear on multiple emotional video captioning benchmarks when the full pipeline is used.
  • Each added module (decomposition, guided refinement, contrastive alignment) contributes measurable improvement in isolation.

Where Pith is reading between the lines

These are editorial extensions of the paper, not claims the author makes directly.

  • The same localized cause-extraction step could be tested on tasks that require grounding emotions to actions, such as affective dialogue generation from video.
  • If core segments can be identified without full supervision, the approach might scale to longer untrimmed videos where global features become even noisier.
  • The VAD-vector constraint used for refinement suggests a route to incorporate psychological priors into other multimodal emotion models.

Load-bearing premise

Visual emotions are evoked by specific motivational causes that appear only inside limited core segments of a video.

What would settle it

An experiment on the EVC-MSVD dataset in which removing the pair-extraction stage produces no drop or an increase in BLEU-2 and ROUGE-L scores.

Figures

Figures reproduced from arXiv: 2606.08566 by Cheng Ye, Liping Wang, Weidong Chen, Xinyan Liu, Yongdong Zhang, Zhendong Mao.

Figure 1
Figure 1. Figure 1: Motivation of our paper, which illustrates the difference between [PITH_FULL_IMAGE:figures/full_fig_p001_1.png] view at source ↗
Figure 2
Figure 2. Figure 2: Overview of our proposed MM-ECPE++ framework for emotion-attributed video captioning. Given an input video and emotion dictionary, we perform [PITH_FULL_IMAGE:figures/full_fig_p003_2.png] view at source ↗
Figure 3
Figure 3. Figure 3: The effects of three trade-off parameters on EVC-MSVD of [PITH_FULL_IMAGE:figures/full_fig_p010_3.png] view at source ↗
Figure 4
Figure 4. Figure 4: Qualitative results for comparison between our model and other SOTA methods, [PITH_FULL_IMAGE:figures/full_fig_p010_4.png] view at source ↗
Figure 5
Figure 5. Figure 5: Qualitative results for our proposed Concept-aware Visual Semantic Decomposition module. The yellow, red, and blue words in the caption correspond [PITH_FULL_IMAGE:figures/full_fig_p011_5.png] view at source ↗
Figure 6
Figure 6. Figure 6: Qualitative results for our proposed Visual-guided Emotion Inter [PITH_FULL_IMAGE:figures/full_fig_p011_6.png] view at source ↗
read the original abstract

Emotional Video Captioning (EVC) is a challenging task that aims to generate factually accurate and emotionally rich descriptions for videos. Existing EVC methods leverage holistic visual features to mine global emotional cues, and then aggregate multimodal features to guide the emotional caption generation, which ignores the critical characteristic of the EVC task. Visual emotions are evoked by specific motivational causes, which are usually only implied in core video segments. The holistic mining brings significant information redundancy and inaccurate emotional cues. Thus, fine-grained visual cause extraction has a facilitative effect on both emotion perception and emotion-attributed caption generation. To this end, we propose a fine-grained emotion-cause pair extraction framework for emotion-attributed video captioning. Specifically, we learn pair-wise emotion and cause features in two rounds: 1) We propose a Concept-aware Visual Semantic Decomposition module to augment visual features by exploring scene, object, and motion concepts. Besides, to enhance emotional features, we propose a Visual-guided Emotion Interpretable Learning module, which guides emotion refinement with visual temporal dynamics, and augments the interpretable refinement process by reliable VAD-vector constraints. 2) We achieve emotion-cause pair extraction by cross-coupling the visual and emotional features before and after refinement, and leverage contrastive loss to achieve semantic forced alignment. Overall, our approach optimizes complex semantic understanding and emotion perception of videos, leading to a promising performance in emotional captioning. Extensive experiments on three challenging datasets demonstrate the superiority of our approach and each proposed module, e.g., achieving the best performances with +4.4% and +5.4% w.r.t. BLEU-2 and ROUGE-L, respectively, on the EVC-MSVD dataset.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Referee Report

3 major / 1 minor

Summary. The paper proposes a fine-grained emotion-cause pair extraction framework for emotion-attributed video captioning (EVC). It introduces a Concept-aware Visual Semantic Decomposition module to augment visual features using scene, object, and motion concepts, and a Visual-guided Emotion Interpretable Learning module that refines emotional features via visual temporal dynamics and VAD-vector constraints. Emotion-cause pairs are extracted through cross-coupling of visual and emotional features with contrastive alignment. The approach is claimed to reduce redundancy from holistic mining of emotional cues in videos and is evaluated on three datasets, reporting gains such as +4.4% BLEU-2 and +5.4% ROUGE-L on EVC-MSVD.

Significance. If the empirical results hold after proper validation, the work could contribute to EVC by shifting from holistic to cause-specific emotion modeling, potentially improving caption accuracy and interpretability through VAD constraints and contrastive alignment. The modular design allows testing of individual components, which is a positive aspect if ablations are provided.

major comments (3)
  1. [Abstract] Abstract: The central claim that 'holistic mining brings significant information redundancy and inaccurate emotional cues' and that 'fine-grained visual cause extraction has a facilitative effect' is load-bearing for the proposed two-round pair extraction, yet the abstract provides no ablation isolating the pair-extraction step from the Concept-aware Visual Semantic Decomposition or Visual-guided Emotion Interpretable Learning modules. Without such isolation, it is unclear whether the reported +4.4% BLEU-2 gain arises from the core premise or from the added concept/VAD components.
  2. [Abstract] Abstract (paragraph 2) and method description: The pipeline is described as operating via cross-coupling on features 'before and after refinement' without an explicit mechanism (e.g., masking or localization) to identify or restrict processing to 'core video segments.' This leaves the redundancy-reduction assumption untested against a holistic baseline that uses the same decomposition and VAD modules.
  3. [Abstract] Abstract (final sentence): Performance claims are stated without reference to specific baselines, number of runs, error bars, or statistical tests. The assertion of 'best performances' and 'superiority of our approach and each proposed module' cannot be evaluated for robustness without these details in the experimental section.
minor comments (1)
  1. [Abstract] Abstract: The phrase 'two rounds' is used for the learning process but the description lists the modules sequentially without clarifying whether the rounds are iterative or sequential passes over the same features.

Simulated Author's Rebuttal

3 responses · 0 unresolved

We thank the referee for the constructive feedback on the abstract's clarity and the need for stronger isolation of contributions. We address each major comment below and will revise the manuscript accordingly.

read point-by-point responses

  1. Referee: [Abstract] Abstract: The central claim that 'holistic mining brings significant information redundancy and inaccurate emotional cues' and that 'fine-grained visual cause extraction has a facilitative effect' is load-bearing for the proposed two-round pair extraction, yet the abstract provides no ablation isolating the pair-extraction step from the Concept-aware Visual Semantic Decomposition or Visual-guided Emotion Interpretable Learning modules. Without such isolation, it is unclear whether the reported +4.4% BLEU-2 gain arises from the core premise or from the added concept/VAD components.

    Authors: The full manuscript includes module ablations in Section 4.3 (Tables 3-4) that isolate the pair-extraction step via cross-coupling and contrastive alignment from the decomposition and VAD modules. To address the abstract's omission, we will revise it to explicitly reference these ablation results demonstrating the incremental benefit of the pair-extraction component. revision: yes

  2. Referee: [Abstract] Abstract (paragraph 2) and method description: The pipeline is described as operating via cross-coupling on features 'before and after refinement' without an explicit mechanism (e.g., masking or localization) to identify or restrict processing to 'core video segments.' This leaves the redundancy-reduction assumption untested against a holistic baseline that uses the same decomposition and VAD modules.

    Authors: The refinement process uses visual temporal dynamics to emphasize cause-relevant segments implicitly, with cross-coupling then aligning refined pairs. We agree an explicit masking mechanism is not detailed. We will revise the method section to clarify this implicit focus and add an ablation comparing against a holistic baseline that retains the same decomposition and VAD modules. revision: partial

  3. Referee: [Abstract] Abstract (final sentence): Performance claims are stated without reference to specific baselines, number of runs, error bars, or statistical tests. The assertion of 'best performances' and 'superiority of our approach and each proposed module' cannot be evaluated for robustness without these details in the experimental section.

    Authors: The experimental section reports results against multiple baselines across three datasets. We will revise the abstract to name the primary baselines and ensure the experimental section includes the number of runs, error bars, and statistical tests (e.g., t-tests) for the reported gains. revision: yes

Circularity Check

0 steps flagged

No significant circularity in the proposed framework

full rationale

The paper proposes a new fine-grained emotion-cause pair extraction framework consisting of Concept-aware Visual Semantic Decomposition, Visual-guided Emotion Interpretable Learning, and cross-coupling with contrastive alignment for emotion-attributed video captioning. No equations, derivations, or parameter-fitting steps are described that reduce to self-definition or fitted inputs called predictions. The motivating assumption about holistic mining introducing redundancy is stated as a premise but does not create a circular reduction in any load-bearing step. Empirical results on EVC-MSVD and other datasets are reported as independent validation. No self-citation chains or uniqueness theorems are invoked as load-bearing. The derivation chain is self-contained against external benchmarks.

Axiom & Free-Parameter Ledger

0 free parameters · 0 axioms · 0 invented entities

Only abstract available; no identifiable free parameters, axioms, or invented entities can be extracted without the full manuscript.

pith-pipeline@v0.9.1-grok · 5857 in / 1033 out tokens · 25336 ms · 2026-06-27T18:52:38.463596+00:00 · methodology

discussion (0)

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