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Visual grounding is a task to locate the target indicated by a natural language expression. Existing methods extend the generic object detection framework to this problem. They base the visual grounding on the features from pre-generated…

Computer Vision and Pattern Recognition · Computer Science 2022-06-09 Li Yang , Yan Xu , Chunfeng Yuan , Wei Liu , Bing Li , Weiming Hu

What is the interplay between semantic representations learned by language models (LM) from surface form alone to those learned from more grounded evidence? We study this question for a scenario where part of the input comes from a…

Computation and Language · Computer Science 2026-04-23 Tianyang Xu , Marcelo Sandoval-Castaneda , Karen Livescu , Greg Shakhnarovich , Kanishka Misra

The rapid advancement of generative models has intensified the challenge of detecting and interpreting visual forgeries, necessitating robust frameworks for image forgery detection while providing reasoning as well as localization. While…

Computer Vision and Pattern Recognition · Computer Science 2025-09-09 Ipsita Praharaj , Yukta Butala , Badrikanath Praharaj , Yash Butala

Since the introduction of ChatGPT, large language models (LLMs) have demonstrated significant utility in various tasks, such as answering questions through retrieval-augmented generation. Context can be retrieved using a vectorized…

Computation and Language · Computer Science 2025-07-01 Ming Cheung

Despite advancements in grounded content generation, production Large Language Models (LLMs) based applications still suffer from hallucinated answers. We present "Grounded in Context" - a member of Deepchecks' ORION (Output Reasoning-based…

Object-aware reasoning in vision-language tasks poses significant challenges for current models, particularly in handling unseen objects, reducing hallucinations, and capturing fine-grained relationships in complex visual scenes. To address…

Computer Vision and Pattern Recognition · Computer Science 2024-12-17 Antonio Carlos Rivera , Anthony Moore , Steven Robinson

Vision-Language Models (VLMs) are powerful open-set reasoners, yet their direct use as anomaly detectors in video surveillance is fragile: without calibrated anomaly priors, they alternate between missed detections and hallucinated false…

Computer Vision and Pattern Recognition · Computer Science 2026-04-03 Mohamed Eltahir , Ahmed O. Ibrahim , Obada Siralkhatim , Tabarak Abdallah , Sondos Mohamed

Vision-language models (VLMs) have shown powerful capabilities in visual question answering and reasoning tasks by combining visual representations with the abstract skill set large language models (LLMs) learn during pretraining. Vision,…

Artificial Intelligence · Computer Science 2023-09-01 Riley Tavassoli , Mani Amani , Reza Akhavian

The video visual relation detection (VidVRD) task is to identify objects and their relationships in videos, which is challenging due to the dynamic content, high annotation costs, and long-tailed distribution of relations. Visual language…

Computer Vision and Pattern Recognition · Computer Science 2025-03-13 Qi Liu , Weiying Xue , Yuxiao Wang , Zhenao Wei

To reduce issues like hallucinations and lack of control in Large Language Models (LLMs), a common method is to generate responses by grounding on external contexts given as input, known as knowledge-augmented models. However, previous…

Computation and Language · Computer Science 2024-07-02 Hyunji Lee , Sejune Joo , Chaeeun Kim , Joel Jang , Doyoung Kim , Kyoung-Woon On , Minjoon Seo

Multimodal large language models (MLLMs) have revolutionized the landscape of AI, demonstrating impressive capabilities in tackling complex vision and audio-language tasks. However, a critical challenge remains: these models often suffer…

Machine Learning · Computer Science 2026-05-05 Itai Allouche , Joseph Keshet

Learning generalizable reward functions is a core challenge in embodied intelligence. Recent work leverages contrastive vision language models (VLMs) to obtain dense, domain-agnostic rewards without human supervision. These methods adapt…

Machine Learning · Computer Science 2025-12-25 Simon Roy , Samuel Barbeau , Giovanni Beltrame , Christian Desrosiers , Nicolas Thome

Multimodal large language models (MLLMs) often struggle to ground reasoning in perceptual evidence. We present a systematic study of perception strategies-explicit, implicit, visual, and textual-across four multimodal benchmarks and two…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Yizhuo Ding , Mingkang Chen , Zhibang Feng , Tong Xiao , Wanying Qu , Wenqi Shao , Yanwei Fu

Large Multimodal Models (LMMs) extend Large Language Models to the vision domain. Initial LMMs used holistic images and text prompts to generate ungrounded textual responses. Recently, region-level LMMs have been used to generate visually…

Computer Vision and Pattern Recognition · Computer Science 2024-06-04 Hanoona Rasheed , Muhammad Maaz , Sahal Shaji Mullappilly , Abdelrahman Shaker , Salman Khan , Hisham Cholakkal , Rao M. Anwer , Erix Xing , Ming-Hsuan Yang , Fahad S. Khan

Robotic manipulation faces a significant challenge in generalizing across unseen objects, environments and tasks specified by diverse language instructions. To improve generalization capabilities, recent research has incorporated large…

Robotics · Computer Science 2025-06-16 Shizhe Chen , Ricardo Garcia , Paul Pacaud , Cordelia Schmid

Pretrained vision-language models, such as CLIP, have demonstrated strong generalization capabilities, making them promising tools in the realm of zero-shot visual recognition. Visual relation detection (VRD) is a typical task that…

Computer Vision and Pattern Recognition · Computer Science 2023-11-29 Lin Li , Jun Xiao , Guikun Chen , Jian Shao , Yueting Zhuang , Long Chen

Large Vision-Language Models (LVLMs) have achieved remarkable performance on diverse vision-language tasks. However, LVLMs still suffer from hallucinations, generating text that contradicts the visual input. Existing research has primarily…

Computer Vision and Pattern Recognition · Computer Science 2026-05-13 Zhenxin Qin , Qiang Li , Qingzhuo Wang , Ruiyang Qin , Zhihua Wei , Wen Shen

Multimodal Large Language Model (MLLMs) leverages Large Language Models as a cognitive framework for diverse visual-language tasks. Recent efforts have been made to equip MLLMs with visual perceiving and grounding capabilities. However,…

Computer Vision and Pattern Recognition · Computer Science 2024-03-26 Junwen He , Yifan Wang , Lijun Wang , Huchuan Lu , Jun-Yan He , Jin-Peng Lan , Bin Luo , Xuansong Xie

Driven by the rapid progress in vision-language models (VLMs), the responsible behavior of large-scale multimodal models has become a prominent research area, particularly focusing on hallucination detection and factuality checking. In this…

Computer Vision and Pattern Recognition · Computer Science 2025-06-18 Zijian Zhang , Xuecheng Wu , Danlei Huang , Siyu Yan , Chong Peng , Xuezhi Cao

While Vision-Language Models (VLMs) have achieved competitive performance in various tasks, their comprehension of the underlying structure and semantics of a scene remains understudied. To investigate the understanding of VLMs, we study…

Computer Vision and Pattern Recognition · Computer Science 2025-06-23 Massimo Rizzoli , Simone Alghisi , Olha Khomyn , Gabriel Roccabruna , Seyed Mahed Mousavi , Giuseppe Riccardi