Title
Variational Saccading: Efficient Inference for Large Resolution Images.
Abstract
Image classification with deep neural networks is typically restricted to images of small dimensionality such as 224x244 in Resnet models. This limitation excludes the 4000x3000 dimensional images that are taken by modern smartphone cameras and smart devices. In this work, we aim to mitigate the prohibitive inferential and memory costs of operating in such large dimensional spaces. To sample from the high-resolution original input distribution, we propose using a smaller proxy distribution to learn the co-ordinates that correspond to regions of interest in the high-dimensional space. We introduce a new principled variational lower bound that captures the relationship of the proxy distributionu0027s posterior and the original imageu0027s co-ordinate space in a way that maximizes the conditional classification likelihood. We empirically demonstrate on one synthetic benchmark and one real world large resolution DSLR camera image dataset that our method produces comparable results with 10x faster inference and lower memory consumption than a model that utilizes the entire original input distribution.
Year
Venue
DocType
2018
arXiv: Computer Vision and Pattern Recognition
Journal
Volume
Citations 
PageRank 
abs/1812.03170
0
0.34
References 
Authors
34
4
Name
Order
Citations
PageRank
Jason Ramapuram101.01
Maurits Diephuis2125.08
Russ Webb301.69
Alexandros Kalousis415110.16