Supervised Raw Video Denoising with a Benchmark Dataset on Dynamic Scenes

• URL: http://arxiv.org/abs/2003.14013v1
• Date: Tue, 31 Mar 2020 08:08:59 GMT
• Title: Supervised Raw Video Denoising with a Benchmark Dataset on Dynamic Scenes
• Authors: Huanjing Yue, Cong Cao, Lei Liao, Ronghe Chu, Jingyu Yang
• Abstract summary: We create motions for controllable objects, such as toys, and capture each static moment for multiple times to generate clean video frames. To our knowledge, this is the first dynamic video dataset with noisy-clean pairs. We propose a raw video denoising network (RViDeNet) by exploring the temporal, spatial, and channel correlations of video frames.
• Score: 16.97140774983356
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: In recent years, the supervised learning strategy for real noisy image denoising has been emerging and has achieved promising results. In contrast, realistic noise removal for raw noisy videos is rarely studied due to the lack of noisy-clean pairs for dynamic scenes. Clean video frames for dynamic scenes cannot be captured with a long-exposure shutter or averaging multi-shots as was done for static images. In this paper, we solve this problem by creating motions for controllable objects, such as toys, and capturing each static moment for multiple times to generate clean video frames. In this way, we construct a dataset with 55 groups of noisy-clean videos with ISO values ranging from 1600 to 25600. To our knowledge, this is the first dynamic video dataset with noisy-clean pairs. Correspondingly, we propose a raw video denoising network (RViDeNet) by exploring the temporal, spatial, and channel correlations of video frames. Since the raw video has Bayer patterns, we pack it into four sub-sequences, i.e RGBG sequences, which are denoised by the proposed RViDeNet separately and finally fused into a clean video. In addition, our network not only outputs a raw denoising result, but also the sRGB result by going through an image signal processing (ISP) module, which enables users to generate the sRGB result with their favourite ISPs. Experimental results demonstrate that our method outperforms state-of-the-art video and raw image denoising algorithms on both indoor and outdoor videos.

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