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20232026
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cs.CV2026

Rigel: Self-Distilled Score Adaptation for Image and Video Captioning Evaluation

Shuitsu Koyama, Kazuki Matsuda, Yuiga Wada +3

Automatic evaluation of image and video captioning is essential for benchmarking multimodal systems, although standard evaluation metrics show limited alignment with human judgment…

cs.CV2026

MLLM-as-a-Judge Exhibits Model Preference Bias

Shuitsu Koyama, Yuiga Wada, Daichi Yashima +1

Automatic evaluation using multimodal large language models (MLLMs), commonly referred to as MLLM-as-a-Judge, has been widely used to measure model performance. If such MLLM-as-a-J…

cs.CV2025

LLM-Free Image Captioning Evaluation in Reference-Flexible Settings

Shinnosuke Hirano, Yuiga Wada, Kazuki Matsuda +2

We focus on the automatic evaluation of image captions in both reference-based and reference-free settings. Existing metrics based on large language models (LLMs) favor their own g…

cs.CV2025

VELA: An LLM-Hybrid-as-a-Judge Approach for Evaluating Long Image Captions

Kazuki Matsuda, Yuiga Wada, Shinnosuke Hirano +2

In this study, we focus on the automatic evaluation of long and detailed image captions generated by multimodal Large Language Models (MLLMs). Most existing automatic evaluation me…

cs.CV2025

Attention Lattice Adapter: Visual Explanation Generation for Visual Foundation Model

Shinnosuke Hirano, Yuiga Wada, Tsumugi Iida +1

In this study, we consider the problem of generating visual explanations in visual foundation models. Numerous methods have been proposed for this purpose; however, they often cann…

cs.CV2025

Capturing Fine-Grained Alignments Improves 3D Affordance Detection

Junsei Tokumitsu, Yuiga Wada

In this work, we address the challenge of affordance detection in 3D point clouds, a task that requires effectively capturing fine-grained alignments between point clouds and text.…