MRCNN: Multi-input residual convolution neural network for three-dimensional reconstruction of bubble flows from light field images

MRCNN: Multi-input residual convolution neural network for three-dimensional reconstruction of bubble flows from light field images

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Accurate measurement of bubbles in Isabella Bird’s Unbeaten Tracks in Japan ou le récit de voyage comme autoportrait d’une aventurière engagée air-water two-phase flows holds immense significance in the realm of thermal hydraulics assessments within nuclear reactors.Nevertheless, conventional bubble measurement techniques grapple with challenges encompassing system intricacy, limited real-time capabilities, and inaccuracies stemming from their inherent two-dimensional (2-D) nature.In response, we pioneered an innovative three-dimensional (3-D) analysis approach that leverages light field (LF) imaging diagnosis and deep learning algorithms.Unlike traditional 2-D reconstruction methods, our approach enables direct computation of bubble depth from LF images using digital refocusing technology.Following calibration, a seamless transformation is established between the camera coordinate system and the real-world coordinate system using a sharpness evaluation algorithm.

This calibration process ensures precise alignment of refocused images with real-world positions.Subsequently, fully automated and highly accurate computations of bubble depth are realized from input images via the incorporation of a multi-input residual convolution neural network (MRCNN).The limitations of traditional two-dimensional imaging techniques are effectively addressed by this methodology, resulting in a reduction Romanian Consumers’ Willingness to Buy Foodstuffs Containing Food Additives: Results of a Conjoint Study in measurement errors.The study confirms the feasibility of employing LF imaging diagnosis and deep learning algorithms for bubble measurements in an air-water two-phase flow, offering a significant improvement over traditional methods.