A Mixed Quantization Network for Computationally Efficient Mobile Inverse Tone Mapping

• URL: http://arxiv.org/abs/2203.06504v1
• Date: Sat, 12 Mar 2022 19:40:01 GMT
• Title: A Mixed Quantization Network for Computationally Efficient Mobile Inverse Tone Mapping
• Authors: Juan Borrego-Carazo, Mete Ozay, Frederik Laboyrie, Paul Wisbey
• Abstract summary: We propose combining efficient operations of deep neural networks with a novel mixed quantization scheme to construct a well-performing but computationally efficient mixed quantization network (MQN) MQN provides up to 10 times improvement on latency and 25 times improvement on memory consumption.
• Score: 8.277567852741242
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: Recovering a high dynamic range (HDR) image from a single low dynamic range (LDR) image, namely inverse tone mapping (ITM), is challenging due to the lack of information in over- and under-exposed regions. Current methods focus exclusively on training high-performing but computationally inefficient ITM models, which in turn hinder deployment of the ITM models in resource-constrained environments with limited computing power such as edge and mobile device applications. To this end, we propose combining efficient operations of deep neural networks with a novel mixed quantization scheme to construct a well-performing but computationally efficient mixed quantization network (MQN) which can perform single image ITM on mobile platforms. In the ablation studies, we explore the effect of using different attention mechanisms, quantization schemes, and loss functions on the performance of MQN in ITM tasks. In the comparative analyses, ITM models trained using MQN perform on par with the state-of-the-art methods on benchmark datasets. MQN models provide up to 10 times improvement on latency and 25 times improvement on memory consumption.

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