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Representing images by compact hash codes is an attractive approach for large-scale content-based image retrieval. In most state-of-the-art hashing-based image retrieval systems, for each image, local descriptors are first aggregated as a…

Computer Vision and Pattern Recognition · Computer Science 2019-09-04 Thanh-Toan Do , Khoa Le , Tuan Hoang , Huu Le , Tam V. Nguyen , Ngai-Man Cheung

Vision transformers in vision-language models typically use the same amount of compute for every image, regardless of whether it is simple or complex. We propose ICAR (Image Complexity-Aware Retrieval), an adaptive computation approach that…

Information Retrieval · Computer Science 2026-01-16 Mikel Williams-Lekuona , Georgina Cosma

Few-shot and zero-shot entity linking focus on the tail and emerging entities, which are more challenging but closer to real-world scenarios. The mainstream method is the ''retrieve and rerank'' two-stage framework. In this paper, we…

Computation and Language · Computer Science 2023-08-15 Shijue Huang , Bingbing Wang , Libo Qin , Qin Zhao , Ruifeng Xu

Existing low-light image enhancement techniques are mostly not only difficult to deal with both visual quality and computational efficiency but also commonly invalid in unknown complex scenarios. In this paper, we develop a new…

Computer Vision and Pattern Recognition · Computer Science 2022-04-22 Long Ma , Tengyu Ma , Risheng Liu , Xin Fan , Zhongxuan Luo

The goal of few-shot classification is to classify new categories with few labeled examples within each class. Nowadays, the excellent performance in handling few-shot classification problems is shown by metric-based meta-learning methods.…

Computer Vision and Pattern Recognition · Computer Science 2021-08-02 Xu Luo , Yuxuan Chen , Liangjian Wen , Lili Pan , Zenglin Xu

Fine-grained visual classification (FGVC) requires distinguishing between visually similar categories through subtle, localized features - a task that remains challenging due to high intra-class variability and limited inter-class…

Computer Vision and Pattern Recognition · Computer Science 2025-09-22 Johann Schmidt , Sebastian Stober , Joachim Denzler , Paul Bodesheim

Discrete diffusion models excel at visual synthesis but rely on slow, iterative decoding. Existing single-step distillation methods attempt to bypass this bottleneck, either by training auxiliary score networks that effectively double…

Computer Vision and Pattern Recognition · Computer Science 2026-05-21 Chaoyang Wang , Yunhai Tong

Recently, prompt learning has demonstrated remarkable success in adapting pre-trained Vision-Language Models (VLMs) to various downstream tasks such as image classification. However, its application to the downstream Image-Text Retrieval…

Computer Vision and Pattern Recognition · Computer Science 2025-08-07 Yifan Wang , Tao Wang , Chenwei Tang , Caiyang Yu , Zhengqing Zang , Mengmi Zhang , Shudong Huang , Jiancheng Lv

In image classification, it is common practice to train deep networks to extract a single feature vector per input image. Few-shot classification methods also mostly follow this trend. In this work, we depart from this established direction…

Computer Vision and Pattern Recognition · Computer Science 2022-04-05 Arman Afrasiyabi , Hugo Larochelle , Jean-François Lalonde , Christian Gagné

Fine-grained visual categorization (FGVC), which aims at classifying objects with small inter-class variances, has been significantly advanced in recent years. However, ultra-fine-grained visual categorization (ultra-FGVC), which targets at…

Computer Vision and Pattern Recognition · Computer Science 2021-10-28 Yajie Sun , Miaohua Zhang , Xiaohan Yu , Yi Liao , Yongsheng Gao

Composed image retrieval aims to find an image that best matches a given multi-modal user query consisting of a reference image and text pair. Existing methods commonly pre-compute image embeddings over the entire corpus and compare these…

Computer Vision and Pattern Recognition · Computer Science 2024-01-30 Zheyuan Liu , Weixuan Sun , Damien Teney , Stephen Gould

Learned image compression methods generally optimize a rate-distortion loss, trading off improvements in visual distortion for added bitrate. Increasingly, however, compressed imagery is used as an input to deep learning networks for…

Image and Video Processing · Electrical Eng. & Systems 2022-02-02 Maxime Kawawa-Beaudan , Ryan Roggenkemper , Avideh Zakhor

We consider the problem of category-level 6D pose estimation from a single RGB image. Our approach represents an object category as a cuboid mesh and learns a generative model of the neural feature activations at each mesh vertex to perform…

Computer Vision and Pattern Recognition · Computer Science 2022-09-14 Wufei Ma , Angtian Wang , Alan Yuille , Adam Kortylewski

Recent advances in text-to-image diffusion models have achieved remarkable success in generating high-quality, realistic images from textual descriptions. However, these approaches have faced challenges in precisely aligning the generated…

Computer Vision and Pattern Recognition · Computer Science 2024-10-25 Zutao Jiang , Guian Fang , Jianhua Han , Guansong Lu , Hang Xu , Shengcai Liao , Xiaojun Chang , Xiaodan Liang

Convolutional neural networks rely on image texture and structure to serve as discriminative features to classify the image content. Image enhancement techniques can be used as preprocessing steps to help improve the overall image quality…

Computer Vision and Pattern Recognition · Computer Science 2018-03-30 Vivek Sharma , Ali Diba , Davy Neven , Michael S. Brown , Luc Van Gool , Rainer Stiefelhagen

With the development of computational power and techniques for data collection, deep learning demonstrates a superior performance over most existing algorithms on visual benchmark data sets. Many efforts have been devoted to studying the…

Computer Vision and Pattern Recognition · Computer Science 2021-08-25 Yuanhong Xu , Qi Qian , Hao Li , Rong Jin , Juhua Hu

In this paper, we propose a novel quadratic optimized model based on the deep convolutional neural network (QODCNN) for full-reference and no-reference screen content image (SCI) quality assessment. Unlike traditional CNN methods taking all…

Computer Vision and Pattern Recognition · Computer Science 2019-03-05 Xuhao Jiang , Liquan Shen , Guorui Feng , Liangwei Yu , Ping An

The cost-effective visual representation and fast query-by-example search are two challenging goals that should be maintained for web-scale visual retrieval tasks on moderate hardware. This paper introduces a fast and robust method that…

Computer Vision and Pattern Recognition · Computer Science 2020-12-15 Savas Ozkan , Gozde Bozdagi Akar

Training deep CNNs to capture localized image artifacts on a relatively small dataset is a challenging task. With enough images at hand, one can hope that a deep CNN characterizes localized artifacts over the entire data and their effect on…

Computer Vision and Pattern Recognition · Computer Science 2017-11-15 Parag Shridhar Chandakkar , Baoxin Li

Methods that combine local and global features have recently shown excellent performance on multiple challenging deep image retrieval benchmarks, but their use of local features raises at least two issues. First, these local features simply…

Computer Vision and Pattern Recognition · Computer Science 2022-02-01 Philippe Weinzaepfel , Thomas Lucas , Diane Larlus , Yannis Kalantidis
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