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Most of the approaches for discovering visual attributes in images demand significant supervision, which is cumbersome to obtain. In this paper, we aim to discover visual attributes in a weakly supervised setting that is commonly…

计算机视觉与模式识别 · 计算机科学 2015-04-21 Sukrit Shankar , Vikas K. Garg , Roberto Cipolla

In hash-based image retrieval systems, degraded or transformed inputs usually generate different codes from the original, deteriorating the retrieval accuracy. To mitigate this issue, data augmentation can be applied during training.…

计算机视觉与模式识别 · 计算机科学 2022-07-14 Young Kyun Jang , Geonmo Gu , Byungsoo Ko , Isaac Kang , Nam Ik Cho

Semantic segmentation using convolutional neural networks (CNN) is a crucial component in image analysis. Training a CNN to perform semantic segmentation requires a large amount of labeled data, where the production of such labeled data is…

计算机视觉与模式识别 · 计算机科学 2021-01-26 Ying Chen , Xu Ouyang , Kaiyue Zhu , Gady Agam

Recent advancements in text-to-image synthesis have been largely propelled by diffusion-based models, yet achieving precise alignment between text prompts and generated images remains a persistent challenge. We find that this difficulty…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Xiefan Guo , Xinzhu Ma , Haiyu Zhang , Di Huang

Score distillation sampling (SDS) has shown great promise in text-to-3D generation by distilling pretrained large-scale text-to-image diffusion models, but suffers from over-saturation, over-smoothing, and low-diversity problems. In this…

机器学习 · 计算机科学 2023-11-23 Zhengyi Wang , Cheng Lu , Yikai Wang , Fan Bao , Chongxuan Li , Hang Su , Jun Zhu

This work presents a method for visual text recognition without using any paired supervisory data. We formulate the text recognition task as one of aligning the conditional distribution of strings predicted from given text images, with…

计算机视觉与模式识别 · 计算机科学 2018-12-11 Ankush Gupta , Andrea Vedaldi , Andrew Zisserman

Automatic Chord Recognition (ACR) is constrained by the scarcity of aligned chord labels, as well-aligned annotations are costly to acquire. At the same time, open-weight pre-trained models are currently more accessible than their…

声音 · 计算机科学 2026-03-31 Nghia Phan , Rong Jin , Gang Liu , Xiao Dong

Deep learning has demonstrated significant improvements in medical image segmentation using a sufficiently large amount of training data with manual labels. Acquiring well-representative labels requires expert knowledge and exhaustive…

计算机视觉与模式识别 · 计算机科学 2021-06-15 Jinxi Xiang , Zhuowei Li , Wenji Wang , Qing Xia , Shaoting Zhang

While supervised learning has achieved remarkable success, obtaining large-scale labeled datasets in biomedical imaging is often impractical due to high costs and the time-consuming annotations required from radiologists. Semi-supervised…

图像与视频处理 · 电气工程与系统科学 2024-01-19 Yuanbin Chen , Tao Wang , Hui Tang , Longxuan Zhao , Ruige Zong , Shun Chen , Tao Tan , Xinlin Zhang , Tong Tong

Ancient history relies on the study of ancient characters. However, real-world scanned oracle characters are difficult to collect and annotate, posing a major obstacle for oracle character recognition (OrCR). Besides, serious abrasion and…

计算机视觉与模式识别 · 计算机科学 2023-12-12 Mei Wang , Weihong Deng , Sen Su

Personalizing text-to-image diffusion models is crucial for adapting the pre-trained models to specific target concepts, enabling diverse image generation. However, fine-tuning with few images introduces an inherent trade-off between…

计算机视觉与模式识别 · 计算机科学 2025-08-04 Sunghyun Park , Seokeon Choi , Hyoungwoo Park , Sungrack Yun

In this work, we leverage estimated depth to boost self-supervised contrastive learning for segmentation of urban scenes, where unlabeled videos are readily available for training self-supervised depth estimation. We argue that the…

计算机视觉与模式识别 · 计算机科学 2022-11-28 Liang Zeng , Attila Lengyel , Nergis Tömen , Jan van Gemert

Unsupervised image retrieval aims to learn an efficient retrieval system without expensive data annotations, but most existing methods rely heavily on handcrafted feature descriptors or pre-trained feature extractors. To minimize human…

计算机视觉与模式识别 · 计算机科学 2022-06-22 Guile Wu , Chao Zhang , Stephan Liwicki

Text-to-image diffusion models have shown an impressive ability to generate high-quality images from input textual descriptions. However, concerns have been raised about the potential for these models to create content that infringes on…

计算机视觉与模式识别 · 计算机科学 2025-01-16 Tingxu Han , Weisong Sun , Yanrong Hu , Chunrong Fang , Yonglong Zhang , Shiqing Ma , Tao Zheng , Zhenyu Chen , Zhenting Wang

Novel Class Discovery (NCD) aims to discover unknown and novel classes in an unlabeled set by leveraging knowledge already learned about known classes. Existing works focus on instance-level or class-level knowledge representation and build…

计算机视觉与模式识别 · 计算机科学 2024-07-04 Yuzheng Wang , Zhaoyu Chen , Dingkang Yang , Yunquan Sun , Lizhe Qi

Convolutional Neural Networks (CNNs) are prone to overfit small training datasets. We present a novel two-phase pipeline that leverages self-supervised learning and knowledge distillation to improve the generalization ability of CNN models…

计算机视觉与模式识别 · 计算机科学 2020-08-04 Bingchen Zhao , Xin Wen

Semi-supervised semantic segmentation relieves the reliance on large-scale labeled data by leveraging unlabeled data. Recent semi-supervised semantic segmentation approaches mainly resort to pseudo-labeling methods to exploit unlabeled…

计算机视觉与模式识别 · 计算机科学 2024-04-11 Hui Xiao , Yuting Hong , Li Dong , Diqun Yan , Jiayan Zhuang , Junjie Xiong , Dongtai Liang , Chengbin Peng

Extremely low-light text images are common in natural scenes, making scene text detection and recognition challenging. One solution is to enhance these images using low-light image enhancement methods before text extraction. However,…

计算机视觉与模式识别 · 计算机科学 2024-04-23 Che-Tsung Lin , Chun Chet Ng , Zhi Qin Tan , Wan Jun Nah , Xinyu Wang , Jie Long Kew , Pohao Hsu , Shang Hong Lai , Chee Seng Chan , Christopher Zach

This work presents CLIPDraw, an algorithm that synthesizes novel drawings based on natural language input. CLIPDraw does not require any training; rather a pre-trained CLIP language-image encoder is used as a metric for maximizing…

计算机视觉与模式识别 · 计算机科学 2021-06-29 Kevin Frans , L. B. Soros , Olaf Witkowski

We propose CatVersion, an inversion-based method that learns the personalized concept through a handful of examples. Subsequently, users can utilize text prompts to generate images that embody the personalized concept, thereby achieving…

计算机视觉与模式识别 · 计算机科学 2023-12-01 Ruoyu Zhao , Mingrui Zhu , Shiyin Dong , Nannan Wang , Xinbo Gao