動的受容野時間注意ネットワークによる街路シーン変化検出
DR-TANet: Dynamic Receptive Temporal Attention Network for Street Scene Change Detection
時間注意の依存範囲サイズの影響を調べ、軽量な動的受容野時間注意モジュールと水平垂直同時注意を導入して街路シーンの変化検出精度を向上させた論文。
著者: Shuo Chen, Kailun Yang, Rainer Stiefelhagen
分類: cs.CV, cs.LG, cs.RO, eess.IV
原文アブストラクト
Street scene change detection continues to capture researchers' interests in the computer vision community. It aims to identify the changed regions of the paired street-view images captured at different times. The state-of-the-art network based on the encoder-decoder architecture leverages the feature maps at the corresponding level between two channels to gain sufficient information of changes. Still, the efficiency of feature extraction, feature correlation calculation, even the whole network requires further improvement. This paper proposes the temporal attention and explores the impact of the dependency-scope size of temporal attention on the performance of change detection. In addition, based on the Temporal Attention Module (TAM), we introduce a more efficient and light-weight version - Dynamic Receptive Temporal Attention Module (DRTAM) and propose the Concurrent Horizontal and Vertical Attention (CHVA) to improve the accuracy of the network on specific challenging entities. On street scene datasets `GSV', `TSUNAMI' and `VL-CMU-CD', our approach gains excellent performance, establishing new state-of-the-art scores without bells and whistles, while maintaining high efficiency applicable in autonomous vehicles.
