This work presents an in-depth analysis of the majority of the deep neural
networks (DNNs) proposed in the state of the art for image recognition. For
each DNN multiple performance indices are observed, such as recognition
accuracy, model complexity, computational complexity, memory usage, and
inference time. The behavior of such performance indices and some combinations
of them are analyzed and discussed. To measure the indices we experiment the
use of DNNs on two different computer architectures, a workstation equipped
with a NVIDIA Titan X Pascal and an embedded system based on a NVIDIA Jetson
TX1 board. This experimentation allows a direct comparison between DNNs running
on machines with very different computational capacity. This study is useful
for researchers to have a complete view of what solutions have been explored so
far and in which research directions are worth exploring in the future; and for
practitioners to select the DNN architecture(s) that better fit the resource
constraints of practical deployments and applications. To complete this work,
all the DNNs, as well as the software used for the analysis, are available
online.

本研究分析了当前用于图像识别的大多数深度神经网络 (DNN) 的性能指标，包括识别准确率、模型复杂度、计算复杂度、内存使用和推断时间等，并通过在两种不同计算机架构上的实验来测量指标，以帮助研究者们了解目前已经研究探索的解决方案及其未来发展方向，并帮助从业者选择最适合其资源限制的 DNN 架构。