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Generative adversarial networks (GANs), trained on a large-scale image dataset, can be a good approximator of the natural image manifold. GAN-inversion, using a pre-trained generator as a deep generative prior, is a promising tool for image…

计算机视觉与模式识别 · 计算机科学 2023-02-27 Shancong Mou , Xiaoyi Gu , Meng Cao , Haoping Bai , Ping Huang , Jiulong Shan , Jianjun Shi

We present variational generative adversarial networks, a general learning framework that combines a variational auto-encoder with a generative adversarial network, for synthesizing images in fine-grained categories, such as faces of a…

计算机视觉与模式识别 · 计算机科学 2018-02-06 Jianmin Bao , Dong Chen , Fang Wen , Houqiang Li , Gang Hua

Iris recognition is widely acknowledged for its exceptional accuracy in biometric authentication, traditionally relying on near-infrared (NIR) imaging. Recently, visible spectrum (VIS) imaging via accessible smartphone cameras has been…

图像与视频处理 · 电气工程与系统科学 2024-12-18 Naveenkumar G Venkataswamy , Yu Liu , Surendra Singh , Soumyabrata Dey , Stephanie Schuckers , Masudul H Imtiaz

In design of instance segmentation networks that reconstruct masks, segmentation is often taken as its literal definition -- assigning each pixel a label. This has led to thinking the problem as a template matching one with the goal of…

计算机视觉与模式识别 · 计算机科学 2021-12-07 Quang H. Le , Kamal Youcef-Toumi , Dzmitry Tsetserukou , Ali Jahanian

Deep networks have been successfully applied to visual tracking by learning a generic representation offline from numerous training images. However the offline training is time-consuming and the learned generic representation may be less…

计算机视觉与模式识别 · 计算机科学 2015-08-25 Kaihua Zhang , Qingshan Liu , Yi Wu , Ming-Hsuan Yang

Gabor kernels are widely accepted as dominant filters for iris recognition. In this work we investigate, given the current interest in neural networks, if Gabor kernels are the only family of functions performing best in iris recognition,…

计算机视觉与模式识别 · 计算机科学 2020-02-24 Aidan Boyd , Adam Czajka , Kevin Bowyer

We propose a novel non-rigid image registration algorithm that is built upon fully convolutional networks (FCNs) to optimize and learn spatial transformations between pairs of images to be registered. Different from most existing deep…

计算机视觉与模式识别 · 计算机科学 2017-09-05 Hongming Li , Yong Fan

This paper proposed a retinal image segmentation method based on conditional Generative Adversarial Network (cGAN) to segment optic disc. The proposed model consists of two successive networks: generator and discriminator. The generator…

We present a fully convolutional neural network (ConvNet), named RatLesNetv2, for segmenting lesions in rodent magnetic resonance (MR) brain images. RatLesNetv2 architecture resembles an autoencoder and it incorporates residual blocks that…

计算机视觉与模式识别 · 计算机科学 2021-01-01 Juan Miguel Valverde , Artem Shatillo , Riccardo de Feo , Olli Gröhn , Alejandra Sierra , Jussi Tohka

Modern deep learning techniques can be employed to generate effective feature extractors for the task of iris recognition. The question arises: should we train such structures from scratch on a relatively large iris image dataset, or it is…

计算机视觉与模式识别 · 计算机科学 2020-02-21 Aidan Boyd , Adam Czajka , Kevin Bowyer

Combined variations containing low-resolution and occlusion often present in face images in the wild, e.g., under the scenario of video surveillance. While most of the existing face image recovery approaches can handle only one type of…

计算机视觉与模式识别 · 计算机科学 2019-11-05 Jiancheng Cai , Hu Han , Shiguang Shan , Xilin Chen

GAN-generated image detection now becomes the first line of defense against the malicious uses of machine-synthesized image manipulations such as deepfakes. Although some existing detectors work well in detecting clean, known GAN samples,…

密码学与安全 · 计算机科学 2024-01-08 Chi Liu , Tianqing Zhu , Sheng Shen , Wanlei Zhou

Despite the rise of deep learning in numerous areas of computer vision and image processing, iris recognition has not benefited considerably from these trends so far. Most of the existing research on deep iris recognition is focused on new…

计算机视觉与模式识别 · 计算机科学 2020-05-12 Juš Lozej , Dejan Štepec , Vitomir Štruc , Peter Peer

In this research work, we address the problem of robust iris centre localisation in unconstrained conditions as a core component of our eye-gaze tracking platform. We investigate the application of U-Net variants for segmentation-based and…

计算机视觉与模式识别 · 计算机科学 2024-11-08 Nipun Sandamal Ranasekara Pathiranage , Stefania Cristina , Kenneth P. Camilleri

One of the most significant challenges in statistical signal processing and machine learning is how to obtain a generative model that can produce samples of large-scale data distribution, such as images and speeches. Generative Adversarial…

计算机视觉与模式识别 · 计算机科学 2020-05-28 Pegah Salehi , Abdolah Chalechale , Maryam Taghizadeh

Conventional remote sensing image retrieval (RSIR) systems usually perform single-label retrieval where each image is annotated by a single label representing the most significant semantic content of the image. This assumption, however,…

计算机视觉与模式识别 · 计算机科学 2020-10-20 Weixun Zhou , Xueqing Deng , Zhenfeng Shao

Generative adversarial network (GAN) for image super-resolution (SR) has attracted enormous interests in recent years. However, the GAN-based SR methods only use image discriminator to distinguish SR images and high-resolution (HR) images.…

计算机视觉与模式识别 · 计算机科学 2020-03-18 Xuan Zhu , Yue Cheng , Jinye Peng , Rongzhi Wang , Mingnan Le , Xin Liu

Smartphone based periocular recognition has gained significant attention from biometric research community because of the limitations of biometric modalities like face, iris etc. Most of the existing methods for periocular recognition…

计算机视觉与模式识别 · 计算机科学 2018-01-18 Amani Alahmadi , Muhammad Hussain , Hatim Aboalsamh , Mansour Zuair

This paper proposes an efficient solution for tumor segmentation and classification in breast ultrasound (BUS) images. We propose to add an atrous convolution layer to the conditional generative adversarial network (cGAN) segmentation model…

图像与视频处理 · 电气工程与系统科学 2019-07-02 Vivek Kumar Singh , Hatem A. Rashwan , Mohamed Abdel-Nasser , Md. Mostafa Kamal Sarker , Farhan Akram , Nidhi Pandey , Santiago Romani , Domenec Puig

Iris serves as one of the best biometric modality owing to its complex, unique and stable structure. However, it can still be spoofed using fabricated eyeballs and contact lens. Accurate identification of contact lens is must for reliable…

计算机视觉与模式识别 · 计算机科学 2017-10-17 Avantika Singh , Vishesh Mistry , Dhananjay Yadav , Aditya Nigam