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We introduce a novel unsupervised loss function for learning semantic segmentation with deep convolutional neural nets (ConvNet) when densely labeled training images are not available. More specifically, the proposed loss function penalizes…

计算机视觉与模式识别 · 计算机科学 2018-08-09 Mehran Javanmardi , Mehdi Sajjadi , Ting Liu , Tolga Tasdizen

We present a new loss function, namely Wing loss, for robust facial landmark localisation with Convolutional Neural Networks (CNNs). We first compare and analyse different loss functions including L2, L1 and smooth L1. The analysis of these…

计算机视觉与模式识别 · 计算机科学 2018-10-25 Zhen-Hua Feng , Josef Kittler , Muhammad Awais , Patrik Huber , Xiao-Jun Wu

Image segmentation is critically important in almost all medical image analysis for automatic interpretations and processing. However, it is often challenging to perform image segmentation due to data imbalance between intra- and…

计算机视觉与模式识别 · 计算机科学 2024-07-09 Zhhengyong Huang , Yao Sui

A supervised learning approach is proposed for regularization of large inverse problems where the main operator is built from noisy data. This is germane to superresolution imaging via the sampling indicators of the inverse scattering…

数值分析 · 数学 2025-08-22 Fatemeh Pourahmadian , Yang Xu

Deep neural networks have increased the accuracy of automatic segmentation, however, their accuracy depends on the availability of a large number of fully segmented images. Methods to train deep neural networks using images for which some,…

Automated segmentation of cancerous lesions in PET/CT images is a vital initial task for quantitative analysis. However, it is often challenging to train deep learning-based segmentation methods to high degree of accuracy due to the…

图像与视频处理 · 电气工程与系统科学 2023-09-26 Shadab Ahamed , Arman Rahmim

Despite considerable strides in developing deep learning models for 3D medical image segmentation, the challenge of effectively generalizing across diverse image distributions persists. While domain generalization is acknowledged as vital…

Loss functions are at the heart of deep learning, shaping how models learn and perform across diverse tasks. They are used to quantify the difference between predicted outputs and ground truth labels, guiding the optimization process to…

Image segmentation is the foundation of several computer vision tasks, where pixel-wise knowledge is a prerequisite for achieving the desired target. Deep learning has shown promising performance in supervised image segmentation. However,…

图像与视频处理 · 电气工程与系统科学 2024-03-19 Boujemaa Guermazi , Riadh Ksantini , Naimul Khan

Deep convolutional neural networks have driven substantial advancements in the automatic understanding of images. Requiring a large collection of images and their associated annotations is one of the main bottlenecks limiting the adoption…

计算机视觉与模式识别 · 计算机科学 2019-08-22 Zahra Mirikharaji , Yiqi Yan , Ghassan Hamarneh

In recent years, deep perceptual loss has been widely and successfully used to train machine learning models for many computer vision tasks, including image synthesis, segmentation, and autoencoding. Deep perceptual loss is a type of loss…

计算机视觉与模式识别 · 计算机科学 2024-07-04 Gustav Grund Pihlgren , Konstantina Nikolaidou , Prakash Chandra Chhipa , Nosheen Abid , Rajkumar Saini , Fredrik Sandin , Marcus Liwicki

Segmentation of white matter lesions and deep grey matter structures is an important task in the quantification of magnetic resonance imaging in multiple sclerosis. In this paper we explore segmentation solutions based on convolutional…

State-of-the-art deep neural networks have been shown to be extremely powerful in a variety of perceptual tasks like semantic segmentation. However, these networks are vulnerable to adversarial perturbations of the input which are…

计算机视觉与模式识别 · 计算机科学 2026-01-13 Kira Maag , Asja Fischer

The choice of a loss function is an important factor when training neural networks for image restoration problems, such as single image super resolution. The loss function should encourage natural and perceptually pleasing results. A…

图像与视频处理 · 电气工程与系统科学 2021-10-19 Aamir Mustafa , Aliaksei Mikhailiuk , Dan Andrei Iliescu , Varun Babbar , Rafal K. Mantiuk

Convolutional Neural Networks (CNNs) have been recently employed to solve problems from both the computer vision and medical image analysis fields. Despite their popularity, most approaches are only able to process 2D images while most…

计算机视觉与模式识别 · 计算机科学 2016-06-16 Fausto Milletari , Nassir Navab , Seyed-Ahmad Ahmadi

The remarkable performance of deep neural networks (DNNs) currently makes them the method of choice for solving linear inverse problems. They have been applied to super-resolve and restore images, as well as to reconstruct MR and CT images.…

图像与视频处理 · 电气工程与系统科学 2021-06-01 Marija Vella , João F. C. Mota

Multi-modal medical image segmentation plays an essential role in clinical diagnosis. It remains challenging as the input modalities are often not well-aligned spatially. Existing learning-based methods mainly consider sharing trainable…

计算机视觉与模式识别 · 计算机科学 2021-01-06 Jingkun Chen , Wenqi Li , Hongwei Li , Jianguo Zhang

Deep distance metric learning (DDML), which is proposed to learn image similarity metrics in an end-to-end manner based on the convolution neural network, has achieved encouraging results in many computer vision tasks.$L2$-normalization in…

计算机视觉与模式识别 · 计算机科学 2018-03-29 Xuefei Zhe , Shifeng Chen , Hong Yan

We present a Gaussian kernel loss function and training algorithm for convolutional neural networks that can be directly applied to both distance metric learning and image classification problems. Our method treats all training features…

计算机视觉与模式识别 · 计算机科学 2018-07-03 Benjamin J. Meyer , Ben Harwood , Tom Drummond

This paper presents a new robust loss function, the T-Loss, for medical image segmentation. The proposed loss is based on the negative log-likelihood of the Student-t distribution and can effectively handle outliers in the data by…

计算机视觉与模式识别 · 计算机科学 2023-06-02 Alvaro Gonzalez-Jimenez , Simone Lionetti , Philippe Gottfrois , Fabian Gröger , Marc Pouly , Alexander Navarini