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Temperature Measurement of small objects by Mach-Zehnder Interferometer

Journal of Thermal Science 1993年第4期2卷 270-274页

作者： Y.T.Wong W.K.Chin Hong Kong Polytechnic

A Mach-Zehnder Interferometer incorporated with image processing has been set up to study the temperature field of small *** objects with width to height ratios ranging from 0.33 to 1.0 subjected to natural convection are used to simulate the condition at which the end effects are significant. Interferogram representing the temperature gradient is captured,digitized,and image processed with the aid of an image processing unit.A simple correction model is proposed to treat the stored interferometric *** interference data are found to compare well with those provided by the thermocouples.

关键词： temperature measurement small objects mach-zehnder interferometer

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The Application of the Dilated Convolution based on small Object Detection

The Application of the Dilated Convolution based on Small Ob...

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第三十九届中国控制会议

作者： Chengtao Cai Yue Wu Shuofeng Li The college of Automation Harbin Engineering University

Object detection is an important part of computer vision applications. It is widely used in robot navigation, intelligent video surveillance, industrial testing, aerospace and other fields. Full application of computer vision can reduce the consumption of human capital. At present, most deep learning-based methods focus on large objects, and we know that large objects always account a large part of an image. Therefore, these methods are not ideal for detecting small objects. The reason is that small objects carry very little information and their ability to express features are also weak. To solve this problem, we use our model and try to enlarge the resolution of feature maps by applying the dilated convolution. The results show that it improves the accuracy of detecting small objects.

关键词： Object detection small objects Dilated convolution

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