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Zero-Shot Learning (ZSL) presents the challenge of identifying categories not seen during training. This task is crucial in domains where it is costly, prohibited, or simply not feasible to collect training data. ZSL depends on a mapping…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 William Heyden , Habib Ullah , M. Salman Siddiqui , Fadi Al Machot

Despite the dominance of convolutional and transformer-based architectures in image-to-image retrieval, these models are prone to biases arising from low-level visual features, such as color. Recognizing the lack of semantic understanding…

Computer Vision and Pattern Recognition · Computer Science 2025-05-23 Nikolaos Chaidos , Angeliki Dimitriou , Maria Lymperaiou , Giorgos Stamou

Sketch-based 3D shape retrieval (SBSR) aims to retrieve 3D shapes that are consistent with the category of the input hand-drawn sketch. The core challenge of this task lies in two aspects: existing methods typically employ simplified…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Hang Cheng , Muyan He , Mingyu Fan , Chengfeng Xie , Xi Cheng , Long Zeng

Non-native speakers with limited vocabulary often struggle to name specific objects despite being able to visualize them, e.g., people outside Australia searching for numbats. Further, users may want to search for such elusive objects with…

Computer Vision and Pattern Recognition · Computer Science 2025-02-13 Prajwal Gatti , Kshitij Parikh , Dhriti Prasanna Paul , Manish Gupta , Anand Mishra

Composed Image Retrieval (CIR) aims to retrieve target images by integrating a reference image with a corresponding modification text. CIR requires jointly considering the explicit semantics specified in the query and the implicit semantics…

Computer Vision and Pattern Recognition · Computer Science 2026-04-17 Jiyoung Lim , Heejae Yang , Jee-Hyong Lee

We study the underexplored but fundamental vision problem of machine understanding of abstract freehand scene sketches. We introduce a sketch encoder that results in semantically-aware feature space, which we evaluate by testing its…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Ahmed Bourouis , Judith Ellen Fan , Yulia Gryaditskaya

Zero-shot learning methods rely on fixed visual and semantic embeddings, extracted from independent vision and language models, both pre-trained for other large-scale tasks. This is a weakness of current zero-shot learning frameworks as…

Computer Vision and Pattern Recognition · Computer Science 2022-04-12 Shah Nawaz , Jacopo Cavazza , Alessio Del Bue

Zero-shot learning (ZSL) aims to recognize objects from novel unseen classes without any training data. Recently, structure-transfer based methods are proposed to implement ZSL by transferring structural knowledge from the semantic…

Computer Vision and Pattern Recognition · Computer Science 2017-11-21 Bo Zhao , Xinwei Sun , Yuan Yao , Yizhou Wang

Most of the research in content-based image retrieval (CBIR) focus on developing robust feature representations that can effectively retrieve instances from a database of images that are visually similar to a query. However, the retrieved…

Computer Vision and Pattern Recognition · Computer Science 2023-08-17 Aishwarya Venkataramanan , Martin Laviale , Cédric Pradalier

Contemporary deep learning techniques have made image recognition a reasonably reliable technology. However training effective photo classifiers typically takes numerous examples which limits image recognition's scalability and…

Computer Vision and Pattern Recognition · Computer Science 2018-05-01 Conghui Hu , Da Li , Yi-Zhe Song , Tao Xiang , Timothy M. Hospedales

This paper proposes a novel approach for Sketch-Based Image Retrieval (SBIR), for which the key is to bridge the gap between sketches and photos in terms of the data representation. Inspired by channel-wise attention explored in recent…

Computer Vision and Pattern Recognition · Computer Science 2021-07-27 Peng Lu , Gao Huang , Hangyu Lin , Wenming Yang , Guodong Guo , Yanwei Fu

We propose and evaluate several triplet CNN architectures for measuring the similarity between sketches and photographs, within the context of the sketch based image retrieval (SBIR) task. In contrast to recent fine-grained SBIR work, we…

Computer Vision and Pattern Recognition · Computer Science 2020-07-30 Tu Bui , Leonardo Ribeiro , Moacir Ponti , John Collomosse

In some specific scenarios, face sketch was used to identify a person. However, drawing a complete face sketch often needs skills and takes time, which hinder its widespread applicability in the practice. In this study, we proposed a new…

Computer Vision and Pattern Recognition · Computer Science 2023-02-14 Dawei Dai , Yutang Li , Liang Wang , Shiyu Fu , Shuyin Xia , Guoyin Wang

Zero-Shot Learning (ZSL) is an emerging research that aims to solve the classification problems with very few training data. The present works on ZSL mainly focus on the mapping of learning semantic space to visual space. It encounters many…

Computer Vision and Pattern Recognition · Computer Science 2021-03-01 Zeng Ting , Xiang Hongxin , Xie Cheng , Yang Yun , Liu Qing

Composed Image Retrieval (CIR) enables fine-grained visual search by combining a reference image with a textual modification. While supervised CIR methods achieve high accuracy, their reliance on costly triplet annotations motivates…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Xin Wang , Haipeng Zhang , Mang Li , Zhaohui Xia , Yueguo Chen , Yu Zhang , Chunyu Wei

Image and text retrieval is one of the foundational tasks in the vision and language domain with multiple real-world applications. State-of-the-art approaches, e.g. CLIP, ALIGN, represent images and texts as dense embeddings and calculate…

Computer Vision and Pattern Recognition · Computer Science 2023-02-09 Chen Chen , Bowen Zhang , Liangliang Cao , Jiguang Shen , Tom Gunter , Albin Madappally Jose , Alexander Toshev , Jonathon Shlens , Ruoming Pang , Yinfei Yang

Composed Image Retrieval (CIR) is a challenging task that aims to retrieve the target image with a multimodal query, i.e., a reference image, and its complementary modification text. As previous supervised or zero-shot learning paradigms…

Computer Vision and Pattern Recognition · Computer Science 2024-11-13 Bohan Hou , Haoqiang Lin , Haokun Wen , Meng Liu , Mingzhu Xu , Xuemeng Song

Recently, encoders like ViT (vision transformer) and ResNet have been trained on vast datasets and utilized as perceptual metrics for comparing sketches and images, as well as multi-domain encoders in a zero-shot setting. However, there has…

Computer Vision and Pattern Recognition · Computer Science 2023-07-28 Gianluca Berardi , Yulia Gryaditskaya

This paper advances the fine-grained sketch-based image retrieval (FG-SBIR) literature by putting forward a strong baseline that overshoots prior state-of-the-arts by ~11%. This is not via complicated design though, but by addressing two…

Computer Vision and Pattern Recognition · Computer Science 2023-03-27 Aneeshan Sain , Ayan Kumar Bhunia , Subhadeep Koley , Pinaki Nath Chowdhury , Soumitri Chattopadhyay , Tao Xiang , Yi-Zhe Song

Zero-shot learning (ZSL) is a framework to classify images belonging to unseen classes based on solely semantic information about these unseen classes. In this paper, we propose a new ZSL algorithm using coupled dictionary learning. The…

Computer Vision and Pattern Recognition · Computer Science 2021-10-26 Mohammad Rostami , Soheil Kolouri , Zak Murez , Yuri Owekcho , Eric Eaton , Kuyngnam Kim
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