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• W3204118251 abstract "Attention networks perform well on diverse computer vision tasks. The core idea is that the signal of interest is stronger in some pixels (foreground), and by selectively focusing computation on these pixels, networks can extract subtle information buried in noise and other sources of corruption. Our paper is based on one key observation: in many real-world applications, many sources of corruption, such as illumination and motion, are often shared between the foreground and the background pixels. Can we utilize this to our advantage? We propose the utility of inverse attention networks, which focus on extracting information about these shared sources of corruption. We show that this helps to effectively suppress shared covariates and amplify signal information, resulting in improved performance. We illustrate this on the task of camera-based physiological measurement where the signal of interest is weak and global illumination variations and motion act as significant shared sources of corruption. We perform experiments on three datasets and show that our approach of inverse attention produces state-of-the-art results, increasing the signal-to-noise ratio by up to 5.8 dB, reducing heart rate and breathing rate estimation errors by as much as 30 %, recovering subtle waveform dynamics, and generalizing from RGB to NIR videos without retraining." @default.
• W3204118251 created "2021-10-11" @default.
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• W3204118251 date "2021-10-01" @default.
• W3204118251 modified "2023-09-30" @default.
• W3204118251 title "The Benefit of Distraction: Denoising Camera-Based Physiological Measurements using Inverse Attention" @default.
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• W3204118251 doi "https://doi.org/10.1109/iccv48922.2021.00491" @default.
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