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Related papers: Vocabulary-free Image Classification

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Vision-language models (VLMs) have enabled strong zero-shot classification through image-text alignment. Yet, their purely visual inference capabilities remain under-explored. In this work, we conduct a comprehensive evaluation of both…

Computer Vision and Pattern Recognition · Computer Science 2025-09-12 Illia Volkov , Nikita Kisel , Klara Janouskova , Jiri Matas

Large-scale pre-trained Vision & Language (VL) models have shown remarkable performance in many applications, enabling replacing a fixed set of supported classes with zero-shot open vocabulary reasoning over (almost arbitrary) natural…

Computer Vision and Pattern Recognition · Computer Science 2023-08-31 Paola Cascante-Bonilla , Khaled Shehada , James Seale Smith , Sivan Doveh , Donghyun Kim , Rameswar Panda , Gül Varol , Aude Oliva , Vicente Ordonez , Rogerio Feris , Leonid Karlinsky

The novel unseen classes can be formulated as the extreme values of known classes. This inspired the recent works on open-set recognition \cite{Scheirer_2013_TPAMI,Scheirer_2014_TPAMIb,EVM}, which however can have no way of naming the novel…

Computer Vision and Pattern Recognition · Computer Science 2018-01-30 Yanwei Fu , HanZe Dong , Yu-feng Ma , Zhengjun Zhang , Xiangyang Xue

While deep learning, including Convolutional Neural Networks (CNNs) and Vision Transformers (ViTs), has significantly advanced classification performance, its typical reliance on extensive annotated datasets presents a major obstacle in…

Computer Vision and Pattern Recognition · Computer Science 2025-09-24 Matheus Vinícius Todescato , Joel Luís Carbonera

Recent advances in foundational Vision Language Models (VLMs) have reshaped the evaluation paradigm in computer vision tasks. These foundational models, especially CLIP, have accelerated research in open-vocabulary computer vision tasks,…

Computer Vision and Pattern Recognition · Computer Science 2025-04-15 M. Arda Aydın , Efe Mert Çırpar , Elvin Abdinli , Gozde Unal , Yusuf H. Sahin

Image clustering is an important and open-challenging task in computer vision. Although many methods have been proposed to solve the image clustering task, they only explore images and uncover clusters according to the image features, thus…

Computer Vision and Pattern Recognition · Computer Science 2023-04-11 Shaotian Cai , Liping Qiu , Xiaojun Chen , Qin Zhang , Longteng Chen

The pre-trained vision-language model, exemplified by CLIP, advances zero-shot semantic segmentation by aligning visual features with class embeddings through a transformer decoder to generate semantic masks. Despite its effectiveness,…

Computer Vision and Pattern Recognition · Computer Science 2024-03-14 Zicheng Zhang , Tong Zhang , Yi Zhu , Jianzhuang Liu , Xiaodan Liang , QiXiang Ye , Wei Ke

We introduce NOVIC, an innovative real-time uNconstrained Open Vocabulary Image Classifier that uses an autoregressive transformer to generatively output classification labels as language. Leveraging the extensive knowledge of CLIP models,…

Computer Vision and Pattern Recognition · Computer Science 2025-04-15 Philipp Allgeuer , Kyra Ahrens , Stefan Wermter

Video Instance Segmentation (VIS) aims at segmenting and categorizing objects in videos from a closed set of training categories, lacking the generalization ability to handle novel categories in real-world videos. To address this…

Computer Vision and Pattern Recognition · Computer Science 2023-08-08 Haochen Wang , Cilin Yan , Shuai Wang , Xiaolong Jiang , XU Tang , Yao Hu , Weidi Xie , Efstratios Gavves

Vision-language foundation models pretrained on large-scale data provide a powerful tool for many visual understanding tasks. Notably, many vision-language models build two encoders (visual and textual) that can map two modalities into the…

Computer Vision and Pattern Recognition · Computer Science 2023-04-20 Taihong Xiao , Zirui Wang , Liangliang Cao , Jiahui Yu , Shengyang Dai , Ming-Hsuan Yang

We study how to leverage off-the-shelf visual and linguistic data to cope with out-of-vocabulary answers in visual question answering task. Existing large-scale visual datasets with annotations such as image class labels, bounding boxes and…

Machine Learning · Computer Science 2019-04-09 Hyeonwoo Noh , Taehoon Kim , Jonghwan Mun , Bohyung Han

A key benefit of deep vision-language models such as CLIP is that they enable zero-shot open vocabulary classification; the user has the ability to define novel class labels via natural language prompts at inference time. However, while…

Computer Vision and Pattern Recognition · Computer Science 2024-01-05 A K Nirala , A Joshi , C Hegde , S Sarkar

Open-Vocabulary Segmentation (OVS) methods are capable of performing semantic segmentation without relying on a fixed vocabulary, and in some cases, without training or fine-tuning. However, OVS methods typically require a human in the loop…

Computer Vision and Pattern Recognition · Computer Science 2025-03-13 Osman Ülger , Maksymilian Kulicki , Yuki Asano , Martin R. Oswald

Given the accelerating progress of vision and language modeling, accurate evaluation of machine-generated image captions remains critical. In order to evaluate captions more closely to human preferences, metrics need to discriminate between…

Computer Vision and Pattern Recognition · Computer Science 2024-02-29 Koki Maeda , Shuhei Kurita , Taiki Miyanishi , Naoaki Okazaki

Semantic segmentation is a crucial task in computer vision that involves segmenting images into semantically meaningful regions at the pixel level. However, existing approaches often rely on expensive human annotations as supervision for…

Computer Vision and Pattern Recognition · Computer Science 2023-06-02 Jun Chen , Deyao Zhu , Guocheng Qian , Bernard Ghanem , Zhicheng Yan , Chenchen Zhu , Fanyi Xiao , Mohamed Elhoseiny , Sean Chang Culatana

Large scale vision and language models can achieve impressive zero-shot recognition performance by mapping class specific text queries to image content. Two distinct challenges that remain however, are high sensitivity to the choice of…

Computer Vision and Pattern Recognition · Computer Science 2023-04-05 Sarah Parisot , Yongxin Yang , Steven McDonagh

Explainability is a longstanding challenge in deep learning, especially in high-stakes domains like healthcare. Common explainability methods highlight image regions that drive an AI model's decision. Humans, however, heavily rely on…

Artificial Intelligence · Computer Science 2023-11-21 Shobhit Agarwal , Yevgeniy R. Semenov , William Lotter

Language-vision models like CLIP have made significant strides in vision tasks, such as zero-shot image classification (ZSIC). However, generating specific and expressive visual descriptions remains challenging; descriptions produced by…

Computer Vision and Pattern Recognition · Computer Science 2024-11-25 Michael Ogezi , Bradley Hauer , Grzegorz Kondrak

Large Vision-Language Models (LVLMs) have demonstrated impressive performance on vision-language reasoning tasks. However, their potential for zero-shot fine-grained image classification, a challenging task requiring precise differentiation…

Computer Vision and Pattern Recognition · Computer Science 2025-10-07 Md. Atabuzzaman , Andrew Zhang , Chris Thomas

Open-vocabulary semantic segmentation enables models to identify novel object categories beyond their training data. While this flexibility represents a significant advancement, current approaches still rely on manually specified class…

Computer Vision and Pattern Recognition · Computer Science 2025-02-18 Klara Reichard , Giulia Rizzoli , Stefano Gasperini , Lukas Hoyer , Pietro Zanuttigh , Nassir Navab , Federico Tombari