Transformer-based Models for Supervised Monocular Depth Estimation
2022 International Conference on Intelligent Controller and Computing for Smart Power (ICICCSP)(2022)
摘要
Existing traditional solutions for monocular depth estimation, usually use convolution networks as the backbone of their model architecture. This work presents an encoder-decoder network using a transformer architecture that can perform monocular depth estimation on a single RGB image. For environment perception and autonomous navigation systems, where depth estimation is done on edge devices, there is a need for lightweight and efficient models. It is shown that transformer-based architectures provide comparable results to the currently used convolution networks with significantly fewer parameters. Unlike convolutional networks, transformers don't downsample the input progressively at each layer. Maintaining a similar resolution throughout the encoding process allows for global awareness at each stage. 2 different decoder models are implemented on top of a transformer encoder and their usability is evaluated for depth estimation. On comparing with a comparable convolution network, it is observed that on the KITTI outdoor dataset, the lighter transformer model performs better in terms of robustness and accuracy.
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关键词
transformer-based architectures,convolutional networks,decoder models,transformer encoder,comparable convolution network,lighter transformer model,transformer-based models,supervised monocular depth estimation,model architecture,encoder-decoder network,transformer architecture,single RGB image,autonomous navigation systems,lightweight models,efficient models,KITTI outdoor dataset
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