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The latest 2022 review of "small sample deep learning image recognition"
2022-07-07 03:19:00 【Zhiyuan community】
Image recognition is the core problem in the field of image research , Solve the problem of image recognition, face recognition 、 Autopilot 、 Research on robots and other fields is of great significance . At present, the widely used machine learning method based on deep neural network , It has been classified in birds 、 Face recognition 、 Daily object classification and other image recognition data sets have reached a level higher than human beings , At the same time, more and more industrial applications begin to consider the method based on deep neural network , To complete a series of image recognition services . However, deep learning methods rely heavily on large-scale annotation data , This defect greatly limits the application of deep learning method in practical image recognition tasks . To address this issue , More and more researchers begin to study how to train the recognition model based on a small number of image recognition annotation samples . In order to better understand the problem of image recognition based on a small number of labeled samples , Several mainstream annotation learning methods in the field of image recognition are widely discussed , Including methods based on data enhancement 、 Methods based on transfer learning and methods based on meta learning , By discussing the processes and core ideas of different algorithms , We can clearly see the advantages and disadvantages of the existing methods in solving the problem of image recognition with a small number of annotations . Finally, aiming at the limitations of existing methods , The future research direction of small sample image recognition is pointed out .
Address :
http://www.jos.org.cn/jos/article/abstract/6342?st=article_issue
Today's machine learning methods , In particular, the machine learning method based on deep neural network has been used in face recognition [1]、 Autopilot [2]、 robot [3] And other image recognition related fields have made great achievements , Some have even exceeded the current human recognition level . However, great achievements have been made in deep learning At the same time , People find it difficult to apply it to practical problems . The first is the problem of labeling data , Current deep learning methods require a large number of standards Note data to train [4] , However, in practical application, data acquisition is often difficult , There is also the issue of personal privacy , Like face data , Also have The problem object itself is very few problems , For example, the problem of identifying rare and protected animals , besides , Data annotation often requires a lot of manpower and material resources , This hinders the application of deep learning technology in the field of image recognition . The second is the problem of computational power , The deep learning method can improve the performance of the algorithm at the same time , Often accompanied by huge network operations , This makes it difficult for deep learning methods to be deployed on devices with limited computing resources , Therefore, in some cases, the computational power is limited Application scenarios of , Like autonomous driving 、 robot 、 Road monitoring and other issues , At present, most of the image recognition tasks still use some low intelligence 、 Technology with low computational power consumption , This also seriously hinders the development of intelligent image recognition technology .
By contrast , Human recognition is relatively light , That is, you don't need to collect a lot of data to learn , It doesn't take a long time to think or Calculation [5] . For example, parents teach newborn babies to read , Distinguish animals , Simply paste one or two corresponding calligraphy and paintings at home , Children will soon recognize Read the content above . How to retain the powerful knowledge representation ability of the current deep learning methods at the same time , So that it can quickly learn from a small number of samples Useful knowledge , This problem of image recognition based on small samples has gradually attracted people's attention .
This article will discuss in the following order , First, in the first place. 1 This section introduces the problem description of small sample image recognition , Then it will be on the 2 This section introduces the base Small sample learning algorithm for data enhancement , In the 3 This part introduces the algorithm based on transfer learning , In the 4 This section introduces the algorithm based on meta learning , It will be in the 5 This section introduces the widely used evaluation indexes of small sample image recognition , And compare the performance of the above algorithm on the benchmark of the problem , In the end The first 6 Part refers to the shortcomings of existing algorithms and the future development direction .
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