標(biāo)記點(diǎn)自動(dòng)提取的感興趣目標(biāo)分割方法
[Abstract]:Digital image processing refers to the method and technology of image processing and analysis by computer, which is also called computer image processing. It has been successfully applied in many important fields, including machine vision, medical science and aerospace. As an important part of digital image processing, image segmentation has a direct impact on the future work. An effective image segmentation algorithm is of great practical significance to the development of various industries. In recent years, image segmentation methods based on the combination of depth learning theory and computer vision technology have been emerging, among which convolution neural networks have been successful in many fields. The traditional image segmentation algorithms are based on the extraction of the image's own features. Firstly, the image is divided into different regions by using the correlation method, then the regions are classified, combined and other post-processing operations, finally the meaningful segmentation results are obtained. The process is cumbersome and complex, and there is a lot of room for improvement. The convolutional neural network (CNN) can automatically extract image features, which makes the method more suitable for image processing. Improving image segmentation technology by using CNN method has become an important research direction. The full convolutional neural network (FCN) has opened a new research prologue in the field of image semantic segmentation. By changing the full join layer of CNN, the model is more suitable for image segmentation and has more obvious advantages than the traditional segmentation method. But the approximate region of the object of interest can only be segmented, and the details of the object of interest can not be described. As we all know, the precise target region plays an important role in the image understanding and analysis, and the segmentation result is not precise enough, which is an urgent problem to be solved in full convolutional neural network (FCN). In this paper, the application of full convolution neural network method in image segmentation is discussed, and some improvements are put forward to solve the problem that the segmentation result of full convolutional neural network is not detailed enough and the details of target edge are ignored. The segmentation results of full convolutional neural network (FCN) are further processed by combining with the traditional algorithm. The watershed algorithm is combined with the full convolution neural network (FCN) because of its good sensitivity to weak edges. Using the approximate region of the object of interest segmented by the full convolutional neural network (FCN) as the prior knowledge, the method of obtaining the mark points is improved to refine the edge of the target, and the region of interest with better segmentation effect is obtained. Finally, compared with the segmentation results of (FCN) and other segmentation algorithms, the advantages of this method are proved.
【學(xué)位授予單位】:吉林大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:TP391.41
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