PSCS-Net: Perception Optimized Image Reconstruction Network for Autonomous Driving Systems
Résumé
The progress achieved in transportation systems
and artificial intelligence has amplified the use of intelligent
transportation systems and Autonomous Vehicles (AVs). Indeed,
AV systems have attracted much research in recent years, which
enabled multiple autonomous driving tasks, including scene
understanding, visual prediction, decision-making, and commu-
nication. The latter may create a bottleneck in low-resource
autonomous driving systems that send the collected images to
remote edge servers for processing and decision-making. Such
an issue can be addressed by compressing the images in the
AV and ensuring a good-quality reconstruction at the edge. In
this paper, we propose a deep neural network for Compressed
Sensing (CS) based image reconstruction that integrates image
semantic perception to improve the reconstruction process for
visual prediction tasks. The reconstruction process is optimized
using a perception-inspired loss in an end-to-end model learning
process. The trained model is evaluated on autonomous driving
car datasets. Obtained experimental results outperform state-
of-the-art approaches in terms of both image reconstruction
quality and processing time. Finally, we perform semantic urban
scene segmentation on the reconstructed image to evaluate
reconstruction quality for visual task prediction. Obtained results
on three semantic urban scene datasets demonstrate the efficiency
of the proposed approach.