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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

Image segmentation is the process of partitioning an image into a set of meaningful regions according to some criteria. Hierarchical segmentation has emerged as a major trend in this regard as it favors the emergence of important regions at…

Computer Vision and Pattern Recognition · Computer Science 2017-03-10 Amin Fehri , Santiago Velasco-Forero , Fernand Meyer

Consider a scenario in one-shot query-guided object localization where neither an image of the object nor the object category name is available as a query. In such a scenario, a hand-drawn sketch of the object could be a choice for a query.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-25 Aditay Tripathi , Rajath R Dani , Anand Mishra , Anirban Chakraborty

Iterative Hessian sketch (IHS) is an effective sketching method for modeling large-scale data. It was originally proposed by Pilanci and Wainwright (2016; JMLR) based on randomized sketching matrices. However, it is computationally…

Machine Learning · Statistics 2020-03-10 Aijun Zhang , Hengtao Zhang , Guosheng Yin

The efficacy of zero-shot sketch-based image retrieval (ZS-SBIR) models is governed by two challenges. The immense distributions-gap between the sketches and the images requires a proper domain alignment. Moreover, the fine-grained nature…

Computer Vision and Pattern Recognition · Computer Science 2022-01-19 Ushasi Chaudhuri , Ruchika Chavan , Biplab Banerjee , Anjan Dutta , Zeynep Akata

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

One tough problem of image inpainting is to restore complex structures in the corrupted regions. It motivates interactive image inpainting which leverages additional hints, e.g., sketches, to assist the inpainting process. Sketch is simple…

Computer Vision and Pattern Recognition · Computer Science 2024-05-21 Chang Liu , Shunxin Xu , Jialun Peng , Kaidong Zhang , Dong Liu

Scene text retrieval aims to localize and search all text instances from an image gallery, which are the same or similar to a given query text. Such a task is usually realized by matching a query text to the recognized words, outputted by…

Computer Vision and Pattern Recognition · Computer Science 2021-04-06 Hao Wang , Xiang Bai , Mingkun Yang , Shenggao Zhu , Jing Wang , Wenyu Liu

The immense amount of daily generated and communicated data presents unique challenges in their processing. Clustering, the grouping of data without the presence of ground-truth labels, is an important tool for drawing inferences from data.…

Machine Learning · Statistics 2018-02-08 Panagiotis A. Traganitis , Georgios B. Giannakis

Establishing visual correspondence across images is a challenging and essential task. Recently, an influx of self-supervised methods have been proposed to better learn representations for visual correspondence. However, we find that these…

Computer Vision and Pattern Recognition · Computer Science 2022-07-25 Yingdong Hu , Renhao Wang , Kaifeng Zhang , Yang Gao

In recent years, multi-view subspace learning has been garnering increasing attention. It aims to capture the inner relationships of the data that are collected from multiple sources by learning a unified representation. In this way,…

Computer Vision and Pattern Recognition · Computer Science 2022-12-07 Shizhen Chang , Michael Kopp , Pedram Ghamisi

We propose a method for scene-level sketch-to-photo synthesis with text guidance. Although object-level sketch-to-photo synthesis has been widely studied, whole-scene synthesis is still challenging without reference photos that adequately…

Computer Vision and Pattern Recognition · Computer Science 2023-02-15 AprilPyone MaungMaung , Makoto Shing , Kentaro Mitsui , Kei Sawada , Fumio Okura

Freehand sketching is an inherently sequential process. Yet, most approaches for hand-drawn sketch recognition either ignore this sequential aspect or exploit it in an ad-hoc manner. In our work, we propose a recurrent neural network…

Computer Vision and Pattern Recognition · Computer Science 2016-08-12 Ravi Kiran Sarvadevabhatla , Jogendra Kundu , Babu R. Venkatesh

Most real world applications of image retrieval such as Adobe Stock, which is a marketplace for stock photography and illustrations, need a way for users to find images which are both visually (i.e. aesthetically) and conceptually (i.e.…

Information Retrieval · Computer Science 2020-10-06 Aashish Kumar Misraa , Ajinkya Kale , Pranav Aggarwal , Ali Aminian

Visual scenes are naturally organized in a hierarchy, where a coarse semantic is recursively comprised of several fine details. Exploring such a visual hierarchy is crucial to recognize the complex relations of visual elements, leading to a…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Hyeongjun Kwon , Jinhyun Jang , Jin Kim , Kwonyoung Kim , Kwanghoon Sohn

Retrieving content relevant images from a large-scale fine-grained dataset could suffer from intolerably slow query speed and highly redundant storage cost, due to high-dimensional real-valued embeddings which aim to distinguish subtle…

Computer Vision and Pattern Recognition · Computer Science 2020-08-05 Quan Cui , Qing-Yuan Jiang , Xiu-Shen Wei , Wu-Jun Li , Osamu Yoshie

Content-based image retrieval has seen astonishing progress over the past decade, especially for the task of retrieving images of the same object that is depicted in the query image. This scenario is called instance or object retrieval and…

Computer Vision and Pattern Recognition · Computer Science 2020-11-13 Björn Barz , Joachim Denzler

Sketch-Based Image Retrieval (SBIR) is a crucial task in multimedia retrieval, where the goal is to retrieve a set of images that match a given sketch query. Researchers have already proposed several well-performing solutions for this task,…

Computer Vision and Pattern Recognition · Computer Science 2023-05-31 Omar Seddati , Nathan Hubens , Stéphane Dupont , Thierry Dutoit

We introduce SketchYourSeg, a novel framework that establishes freehand sketches as a powerful query modality for subjective image segmentation across entire galleries through a single exemplar sketch. Unlike text prompts that struggle with…

Computer Vision and Pattern Recognition · Computer Science 2025-03-19 Subhadeep Koley , Viswanatha Reddy Gajjala , Aneeshan Sain , Pinaki Nath Chowdhury , Tao Xiang , Ayan Kumar Bhunia , Yi-Zhe Song

Stereo image super-resolution aims to improve the quality of high-resolution stereo image pairs by exploiting complementary information across views. To attain superior performance, many methods have prioritized designing complex modules to…

Computer Vision and Pattern Recognition · Computer Science 2023-04-14 Wenbin Zou , Hongxia Gao , Liang Chen , Yunchen Zhang , Mingchao Jiang , Zhongxin Yu , Ming Tan