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We observe that the mapping between an image's representation in one model to its representation in another can be learned surprisingly well with just a linear layer, even across diverse models. Building on this observation, we propose…

Computer Vision and Pattern Recognition · Computer Science 2023-05-12 Mazda Moayeri , Keivan Rezaei , Maziar Sanjabi , Soheil Feizi

Human sketch has already proved its worth in various visual understanding tasks (e.g., retrieval, segmentation, image-captioning, etc). In this paper, we reveal a new trait of sketches - that they are also salient. This is intuitive as…

Computer Vision and Pattern Recognition · Computer Science 2023-03-31 Ayan Kumar Bhunia , Subhadeep Koley , Amandeep Kumar , Aneeshan Sain , Pinaki Nath Chowdhury , Tao Xiang , Yi-Zhe Song

Sketch recognition algorithms are engineered and evaluated using publicly available datasets contributed by the sketch recognition community over the years. While existing datasets contain sketches of a limited set of generic objects, each…

Computer Vision and Pattern Recognition · Computer Science 2021-04-20 Kemal Tugrul Yesilbek , T. Metin Sezgin

Large-scale Vision-Language Models, such as CLIP, learn powerful image-text representations that have found numerous applications, from zero-shot classification to text-to-image generation. Despite that, their capabilities for solving novel…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Aleksandar Shtedritski , Christian Rupprecht , Andrea Vedaldi

With the goal of understanding the visual concepts that CLIP associates with text prompts, we show that the latent space of CLIP can be visualized solely in terms of linear transformations on simple geometric primitives like straight lines…

Computer Vision and Pattern Recognition · Computer Science 2025-07-10 Nityanand Mathur , Shyam Marjit , Abhra Chaudhuri , Anjan Dutta

In this work, we investigate the problem of sketch-based object localization on natural images, where given a crude hand-drawn sketch of an object, the goal is to localize all the instances of the same object on the target image. This…

Computer Vision and Pattern Recognition · Computer Science 2023-03-16 Aditay Tripathi , Anand Mishra , Anirban Chakraborty

Large-scale foundation models like CLIP have shown strong zero-shot generalization but struggle with domain shifts, limiting their adaptability. In our work, we introduce \textsc{StyLIP}, a novel domain-agnostic prompt learning strategy for…

Computer Vision and Pattern Recognition · Computer Science 2024-11-08 Ankit Jha

In this paper, we propose a novel abstraction-aware sketch-based image retrieval framework capable of handling sketch abstraction at varied levels. Prior works had mainly focused on tackling sub-factors such as drawing style and order, we…

Computer Vision and Pattern Recognition · Computer Science 2024-03-22 Subhadeep Koley , Ayan Kumar Bhunia , Aneeshan Sain , Pinaki Nath Chowdhury , Tao Xiang , Yi-Zhe Song

Researchers have explored various ways to generate realistic images from freehand sketches, e.g., for objects and human faces. However, how to generate realistic human body images from sketches is still a challenging problem. It is, first…

Computer Vision and Pattern Recognition · Computer Science 2022-05-23 Xian Wu , Chen Wang , Hongbo Fu , Ariel Shamir , Song-Hai Zhang , Shi-Min Hu

Personalization techniques for large text-to-image (T2I) models allow users to incorporate new concepts from reference images. However, existing methods primarily rely on textual descriptions, leading to limited control over customized…

Computer Vision and Pattern Recognition · Computer Science 2024-02-28 Chufeng Xiao , Hongbo Fu

Sketch-based understanding is a critical component of human cognitive learning and is a primitive communication means between humans. This topic has recently attracted the interest of the computer vision community as sketching represents a…

Computer Vision and Pattern Recognition · Computer Science 2022-04-28 Javier Morales , Nils Murrugarra-Llerena , Jose M. Saavedra

Sketches are simple human hand-drawn abstractions of complex scenes and real-world objects. Although the field of sketch representation learning has advanced significantly, there is still a gap in understanding the true relevance of the…

Computer Vision and Pattern Recognition · Computer Science 2025-12-10 Marcelo Isaias de Moraes Junior , Moacir Antonelli Ponti

The application of zero-shot learning in computer vision has been revolutionized by the use of image-text matching models. The most notable example, CLIP, has been widely used for both zero-shot classification and guiding generative models…

Computer Vision and Pattern Recognition · Computer Science 2022-08-09 Roni Paiss , Hila Chefer , Lior Wolf

In this paper, we present a method for converting a given scene image into a sketch using different types and multiple levels of abstraction. We distinguish between two types of abstraction. The first considers the fidelity of the sketch,…

Computer Vision and Pattern Recognition · Computer Science 2023-05-02 Yael Vinker , Yuval Alaluf , Daniel Cohen-Or , Ariel Shamir

We propose a deep hashing framework for sketch retrieval that, for the first time, works on a multi-million scale human sketch dataset. Leveraging on this large dataset, we explore a few sketch-specific traits that were otherwise…

Computer Vision and Pattern Recognition · Computer Science 2018-04-05 Peng Xu , Yongye Huang , Tongtong Yuan , Kaiyue Pang , Yi-Zhe Song , Tao Xiang , Timothy M. Hospedales , Zhanyu Ma , Jun Guo

In recent studies on domain adaptation, significant emphasis has been placed on the advancement of learning shared knowledge from a source domain to a target domain. Recently, the large vision-language pre-trained model, i.e., CLIP has…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Ruoyu Feng , Tao Yu , Xin Jin , Xiaoyuan Yu , Lei Xiao , Zhibo Chen

This work aims to investigate the problem of 3D modeling using single free-hand sketches, which is one of the most natural ways we humans express ideas. Although sketch-based 3D modeling can drastically make the 3D modeling process more…

Multimedia · Computer Science 2023-12-08 Tianrun Chen , Chenglong Fu , Lanyun Zhu , Papa Mao , Jia Zhang , Ying Zang , Lingyun Sun

Given the recent advances in multimodal image pretraining where visual models trained with semantically dense textual supervision tend to have better generalization capabilities than those trained using categorical attributes or through…

Computer Vision and Pattern Recognition · Computer Science 2023-09-22 Alberto Baldrati , Marco Bertini , Tiberio Uricchio , Alberto Del Bimbo

The common practice for training commonsense models has gone from-human-to-corpus-to-machine: humans author commonsense knowledge graphs in order to train commonsense models. In this work, we investigate an alternative,…

Computation and Language · Computer Science 2022-11-30 Peter West , Chandra Bhagavatula , Jack Hessel , Jena D. Hwang , Liwei Jiang , Ronan Le Bras , Ximing Lu , Sean Welleck , Yejin Choi

Contrastive Language-Image Pretraining (CLIP) performs zero-shot image classification by mapping images and textual class representation into a shared embedding space, then retrieving the class closest to the image. This work provides a new…

Computer Vision and Pattern Recognition · Computer Science 2024-12-19 Fawaz Sammani , Nikos Deligiannis