Super-resolution is an important but difficult problem in image/video processing. If a video sequence or some training set other than the given low-resolution image is available, this kind of extra information can greatly aid in the reconstruction of the high-resolution image. The problem is substantially more difficult with only a single low-resolution image on hand. The image reconstruction methods designed primarily for denoising is insufficient for super-resolution problem in the sense that it tends to oversmooth images with essentially no noise. We propose a new adaptive linear interpolation method based on variational method and inspired by local linear embedding (LLE). The experimental result shows that our method avoids the problem of oversmoothing and preserves image structures well.
Uncertainty Estimations by Softplus normalization in Bayesian Convolutional Neural Networks with Variational Inference
TU Kaiserslautern（凯泽斯劳滕工业大学）；MindGarage；Imperial College London（帝国理工学院）；NeuralSpace；Luleå University of Technology（吕勒奥理工大学）
我们介绍了一种新的不确定性估计贝叶斯卷积神经网络与变分推理的分类任务。通过在最后一层对Softplus函数的输出进行归一化，我们以连贯的方式估计任意和认知的不确定性。权重的后验概率分布由Bayes by Backprop推断。首先，我们展示了这种可靠的变分推理方法可以作为各种网络架构的基本构造。在监督学习设置（MNIST，CIFAR-10，CIFAR-100）的多个数据集上，这种变分推理方法在相同的体系结构中实现了与频率论推理相当的性能，而两个必要的，不确定性和正则化的度量自然地结合在一起。其次，我们研究了我们提出的任意性和认知不确定性的度量是如何推导出来的，并在上述数据集上进行了验证。
Biological Brain Age Estimation using Sex-Aware Adversarial Variational Autoencoder with Multimodal Neuroimages
Dongguk University（东国大学）；Seoul National University（首尔大学）；Stanford University（斯坦福大学）；DeepChain AI&IT Technologies（DeepChain AI与IT技术公司）；DeepNoid Inc.（DeepNoid公司）；Soonchunhyang University Bucheon Hospital（顺天乡大学富川医院）；Naif Arab University for Security Sciences（奈夫阿拉伯安全科学大学）；University of New South Wales（新南威尔士大学）
Bayesian Uncertainty Estimation of Learned Variational MRI Reconstruction
Graz University of Technology（格拉茨技术大学）；Silicon Austria Labs（奥地利硅谷实验室）；University of Bonn（波恩大学）；Johannes Kepler University（约翰·开普勒大学）；Technical University of Munich（慕尼黑工业大学）；Imperial College London（伦敦帝国理工学院）；NYU School of Medicine（纽约大学医学院）
