arXiv Computer Vision

0.5\%>100\%: Bidirectional Reciprocal Learning for Referring Image Segmentation

The paper introduces Bidirectional Reciprocal Learning (BRL), a parameter‑efficient fine‑tuning framework for referring image segmentation that operates on frozen vision foundation models. BRL employs two lightweight adapters—Reciprocal Attention Adapter (RAA) for token‑level cross‑modal attention and Reciprocal Gate Adapter (RGA) for channel‑level gating—to enable hierarchical, bidirectional information flow between vision and language. Experiments on RefCOCO, RefCOCO+, and RefCOCOg show that BRL outperforms existing methods while updating fewer than 0.5% of backbone parameters.

arXiv Computer Vision
Sep 22

DeCo: Efficient Decouple-to-Couple Learning for Multi-Task Visual Grounding

DeCo introduces an efficient decouple-to-couple learning framework for multi-task visual grounding, addressing conflicts between localization and segmentation tasks. It first applies Task-aware Semantic Decoupling (TSD) to separate shared visual cues into task-specific features guided by salient words, then uses Hybrid Prior Coupling (HPC) to merge sentence-level semantic priors with mask-derived spatial priors for improved grounding. Experiments across multiple natural and remote sensing datasets show that DeCo achieves state‑of‑the‑art performance while requiring only lightweight trainable parameters on a frozen multimodal encoder.

By Xiaoqiang Lu, Licheng Jiao, Long Sun, Yuting Yang, Xu Liu, Lingling Li, Wenping Ma, Fang Liu
arXiv AI
Sep 18

Lens: Bringing the Right Semantic Perspective into Focus for Training-Free Multimodal Representation Learning

The paper introduces Lens, a training‑free framework that aligns multimodal representations with the semantic perspective required by downstream tasks. Lens uses a task‑specific readout phrase to anchor the perspective and then aggregates token states after the full input, ensuring the extracted representation reflects task‑conditioned evidence integration rather than generic salient content. The method achieves a Precision@1 of 63.9 across 36 MMEB datasets, outperforming the nearest training‑free baseline by 10.2 points.

By Xinran Liu, Shouqian Shi, Yixian Chen, Ruizhi Chen, Xin-Wei Yao, Sheng Zhong
arXiv AI
Jul 29

RefBench-PRO: Perceptual and Reasoning Oriented Benchmark for Referring Expression Comprehension

arXiv:2512. 06276v3 Announce Type: replace-cross Abstract: Referring Expression Comprehension (REC) is a vision-language task that localizes a specific image region based on a textual description.

By Tianyi Gao, Hao Li, Han Fang, Xin Wei, Xiaodong Dong, Hongbo Sun, Ye Yuan, Zhongjiang He, Jinglin Xu, Jingmin Xin, Hao Sun
arXiv Computer Vision
Oct 15

ReferFlow: Beyond Final-Target Localization for Complex Referring Expressions

arXiv:2610.20352v1 Announce Type: new Abstract: Multimodal Large Language Models have made significant progress in referring expression comprehension (REC), yet most REC benchmarks still focus on fin...

By Tianyi Gao, Han Fang, Xin Wei, Yaoyao Zhong, Zhaoyan Pan, Weijie Zhu, Hongbo Sun, Zhiyu Lin, Kaicheng Yang, Jinglin Xu, Ye Yuan, Hao Li, Hao Sun, Jingmin Xin
arXiv Computer Vision
Oct 23

Loop to Look Better: Learning Adaptive Depth for Question-Guided Perception in Vision-Language Models

LoopLook introduces a lightweight encoder-side recurrent perception framework that equips pretrained Vision‑Language Models with adaptive visual depth. By repeatedly revisiting a middle‑to‑late window of the vision encoder and injecting question representations at each loop, it refines visual evidence in a task‑directed manner. The learned stopping mechanism and token‑wise Mixture‑of‑Looks allow each visual token to selectively integrate information across loops, yielding consistent performance gains across multiple backbones and benchmarks.

By Wencheng Ye, Anning Hu, Hongye Fang, Tianyi Wang, Junchi Yan
arXiv AI
Oct 27

Recursive CLIP: Vision-Language Distillation with Looped Transformer Blocks

The paper explores using a small set of transformer blocks repeatedly—recursively—in CLIP models to reduce parameter count while maintaining performance. Two families are studied: rCLIP, with recursion only in the vision encoder, and r²CLIP, which also recurses the text encoder. Experiments on zero‑shot classification, cross‑modal retrieval, few‑shot learning, visual grounding, and concept unlearning show that CLIP can tolerate significant block reuse, with effects varying by encoder and task, and that recurrence yields parameter efficiency.

By Szymon Mazurek, Alberto Presta, Micha{\l} Byra