Key points are not available for this paper at this time.
Optimizing the computational efficiency of the artificial neural networks is crucial for resource-constrained platforms like autonomous driving systems. To address this challenge, we proposed a Lightweight Context-aware Network (LCNet) that accelerates semantic segmentation while maintaining a favorable trade-off between inference speed and segmentation accuracy in this paper. The proposed LCNet introduces a partial-channel transformation (PCT) strategy to minimize computing latency and hardware requirements of the basic unit. Within the PCT block, a three-branch context aggregation (TCA) module expands the feature receptive fields, capturing multiscale contextual information. Additionally, a dual-attention-guided decoder (DD) recovers spatial details and enhances pixel prediction accuracy. Extensive experiments on three benchmarks demonstrate the effectiveness and efficiency of the proposed LCNet model. Remarkably, a smaller model LCNet ₃\䃗 achieves 73. 8% mIoU with only 0. 51 million parameters, with an impressive inference speed of 142. 5 fps and 9 fps using a single RTX 3090 GPU and Jetson Xavier NX, respectively, on the Cityscapes test set at 1024 1024 resolution. A more accurate version of the LCNet ₃\䃑₁ can achieve 75. 8% mIoU with 0. 74 million parameters at 117 fps inference speed on Cityscapes at the same resolution. Much faster inference speed can be achieved at smaller image resolutions. LCNet strikes a great balance between computational efficiency and prediction capability for mobile application scenarios. The code is available at https: //github. com/lztjy/LCNet.
Shi et al. (Mon,) studied this question.