{"title":"Parking-Lot Vehicles Detection from a Low-Angle Camera Perspective Based on Improved Mask R-CNN","authors":"Yiliang Wu, Yu Sun, Yulin Jia, Fengshun Liao","doi":"10.1109/CACML55074.2022.00102","DOIUrl":"https://doi.org/10.1109/CACML55074.2022.00102","url":null,"abstract":"Camera-based parking occupancy detection driven by deep learning algorithms is a promising technique for building the parking guidance and information system. However, when the available camera is looking at a long parking lot with a relatively low angle, the deep learning method will fail to detect vehicles accurately as vehicles closer to the camera will block those further away. In this study, we provide an improved Mask R-CNN algorithm which is also effective in detecting vehicles for a low-angle camera perspective. Firstly, we introduce the Selective Kernel Networks (SKNet) in the backbone architectures. Secondly, we build a path with clean lateral connections from the low level to the top ones at the back of Feature Pyramid Networks (FPN). Thirdly, we replace the Non-Maximum Suppression (NMS) with the Soft-NMS. Compared to the original Mask R-CNN, the improved ones have better performance, particularly for a low-angle camera perspective.","PeriodicalId":137505,"journal":{"name":"2022 Asia Conference on Algorithms, Computing and Machine Learning (CACML)","volume":"209 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123970708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Experimental Teaching Reform of Angle Measuring Method in Digital Signal Processing Course","authors":"Shaoming Wei, Yuxiang Liu, Jun Wang","doi":"10.1109/CACML55074.2022.00070","DOIUrl":"https://doi.org/10.1109/CACML55074.2022.00070","url":null,"abstract":"The angle measurement experiment is an innovative experiment in the digital signal processing course. This experiment combines engineering practice to allow students to comprehensively master the basic knowledge of circular convolution and window function. Aiming at the problems of the traditional amplitude ratio monopulse angle measurement method, due to the coupling of the azimuth angle and the pitch angle, the normalized error curve is not unique and the angle measurement results are uncertain. In this paper, a new monopulse angle measurement method based on sinusoidal coordinate system is designed. Through the transformation of the sinusoidal coordinate system, the coupling of the azimuth angle and the pitch angle in the angle measurement process is solved, thus realizing the uniqueness of the angle measurement result. On the premise of paying attention to the foundation, professionalism and practicability, this paper introduces innovative experimental methods and updates the teaching content. Through this experiment, students' innovative thinking and problem-solving ability are cultivated.","PeriodicalId":137505,"journal":{"name":"2022 Asia Conference on Algorithms, Computing and Machine Learning (CACML)","volume":"207 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124553713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Semantic and Visual Enrichment Hierarchical Network for Medical Image Report Generation","authors":"Qian Tang, Yongbin Yu, Xiao Feng, Chenhui Peng","doi":"10.1109/CACML55074.2022.00128","DOIUrl":"https://doi.org/10.1109/CACML55074.2022.00128","url":null,"abstract":"This paper highlights a novel medical image report generator named SVEH-Net (Semantic and Visual Enrichment Hierarchical Network), which is based on the encoder-decoder framework and attention mechanism. With the consideration of semantic, visual, and tag features fusion, an image feature encoding (IFE) module is introduced to provide global image features for the decoder, and a hierarchical decoder (H-Decoder) which can fusion all semantic and visual features and generate two reports at one time is proposed. In the experiments, our proposed models are evaluated on the Indiana University Chest X-ray radiology report dataset (IU X-ray) and PEIR Gross dataset. On the both two datasets, our model outperforms the state-of-the-art method in BLEU-1/2/3/4, METEOR, and ROUGE-L scores.","PeriodicalId":137505,"journal":{"name":"2022 Asia Conference on Algorithms, Computing and Machine Learning (CACML)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116007868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Quantitative Trading Method based on Neural Network Machine Learning","authors":"W.-S. Weng","doi":"10.1109/CACML55074.2022.00107","DOIUrl":"https://doi.org/10.1109/CACML55074.2022.00107","url":null,"abstract":"Quantitative trading plays an essential role in the investment field with its advanced mathematical models for computer-aided trading of investment strategies. The artificial neural network algorithm is the trading algorithm with the largest amount of funds managed in the world. Due to the short history of quantitative trading research in China, large-scale funds have not been reported to be managed by the neural network algorithm. The results of tests on financial derivatives using neural networks with different structures demonstrate that the neural network strategies all have positive expected return. Within a considerable range of changes in structure. In this paper, the python language is majorly used to design a model implementation plan for a quantitative trading system reading currently widely recognized stock technical indicators, such as MA, MACD, KDJ, and BOLL. Additionally, position management strategies are optimized. Furthermore, a quantitative trading method based on neural network machine learning is constructed and verified with examples.","PeriodicalId":137505,"journal":{"name":"2022 Asia Conference on Algorithms, Computing and Machine Learning (CACML)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115846282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Learning 3D Face Representation with Vision Transformer for Masked Face Recognition","authors":"Yuan Wang, Zhen Yang, Zhiqiang Zhang, Huaijuan Zang, Qiang Zhu, Shu Zhan","doi":"10.1109/CACML55074.2022.00092","DOIUrl":"https://doi.org/10.1109/CACML55074.2022.00092","url":null,"abstract":"Masked face recognition, a non-contact biometric technology, has attracted much attention and developed rapidly during the coronavirus disease 2019 (COVID-19) outbreak. The existing work trains the masked face recognition model based on a large number of 2D masked face images. However, in practical application scenarios, it is difficult to obtain a large number of masked face images in a short period of time. Therefore, combined with 3D face recognition technology, this paper proposes a masked face recognition model trained with non-masked face images. In this paper, we locate and segment the complete face region and the face region not occluded by masks from the face point clouds. The geometric features of the 3D face surface, namely depth, azimuth, and elevation, are extracted from the above two regions to generate training data. The proposed masked face recognition model based on vision Transformer divides the complete faces and part of the faces into sequence images, and then captures the relationship between the image slices to compensate for the impact caused by the lack of face information, thereby improving the recognition performance. Comparative experiments with the state-of-the-art masked face recognition work are carried out on four databases. The experimental results show that the recognition accuracy of the proposed model is improved by 9.86% on Bosphorus database, 16.77% on CASIA-3D FaceV1 database, 2.32% on StirlingESRC database, and 34.81% on Ajmal main database, respectively, which verifies the effectiveness and stability of the proposed model.","PeriodicalId":137505,"journal":{"name":"2022 Asia Conference on Algorithms, Computing and Machine Learning (CACML)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114865978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Analysis of range anxiety using NEV monitoring big data","authors":"Lina Xia, Chuan Chen, Huanhuan Ren, Zejun Kang","doi":"10.1109/CACML55074.2022.00032","DOIUrl":"https://doi.org/10.1109/CACML55074.2022.00032","url":null,"abstract":"Range anxiety caused by the insufficient driving range is one of the important factors that affect the willingness of consumers to buy battery electric vehicles. Currently, the research on range anxiety mostly relies on questionnaire surveys, and the analysis results are subjective. In order to improve the accuracy of range anxiety analysis and increase the penetration rate of new energy vehicles (NEV), we proposed a new analysis method based on NEV monitoring big data. This method uses data from two dimensions of charging behavior and driving behavior to analyze range anxiety from the aspects of charging urgency and range trust. The results are objective and highly reliable. The analysis results show that due to the influence of ambient temperature and air conditioner power consumption, range anxiety presents a seasonal fluctuation trend.","PeriodicalId":137505,"journal":{"name":"2022 Asia Conference on Algorithms, Computing and Machine Learning (CACML)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126617313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Research on Complexity Change of Stock Market Based on Approximate Entropy","authors":"Xuemei Yang, Yuting Zhou, Shiqi Liu, Junping Yin","doi":"10.1109/CACML55074.2022.00113","DOIUrl":"https://doi.org/10.1109/CACML55074.2022.00113","url":null,"abstract":"Approximate entropy, a method of analyzing the complexity of time series. This study analyzes the time series data of Shanghai Composite Index, and researches the complexity changes of stock market. By simulating, we generate periodic sequence, chaotic sequence, white noise sequence and combinatorial sequence, calculate the approximate entropy of different typical sequences, and it is verified that the approximate entropy method can reflect the complexity of different sequences. By calculating the approximate entropy of Shanghai Composite Index, the results show that the complexity of stock market is generally between periodic system and chaotic superimposed periodic system. In addition, the complexity of the stock market can reflect the volatility of the stock to some extent. It is also found that the higher the approximate entropy, the stronger the complexity of the stock market, and the greater the volatility of the stock market.","PeriodicalId":137505,"journal":{"name":"2022 Asia Conference on Algorithms, Computing and Machine Learning (CACML)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126597222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Asymmetric Generative Adversarial Networks with a New Attention Mechanism","authors":"Jian Chen, Gang Liu, Aihua Ke","doi":"10.1109/CACML55074.2022.00038","DOIUrl":"https://doi.org/10.1109/CACML55074.2022.00038","url":null,"abstract":"In this paper, a new residual decoding network is proposed to solve the problem that semantic label maps are transformed into real images in image processing tasks, which is a very challenging and difficult task. Since the input semantic label map lacks rich detailed information, it will generate blurry, low-detailed, and color-distorted images during con-version. We propose a new residual decoding network to solve the above problems, calling AsymmetricGAN. Compared with the traditional upsampling network, our proposed new residual module with skip and attention connections can better preserve the information in the original image to avoid the loss of details. We also propose a new module with channel and spatial attention mechanism as the main component of the network which can better retain useful information and make the edges of the synthesized image clearer and more abundant in the details. The experimental results on Cityscapes and ADE20K datasets demonstrate the advantage of AsymmetricGAN over the state-of-the-art approaches, regarding both visual quality and the representative evaluating criteria.","PeriodicalId":137505,"journal":{"name":"2022 Asia Conference on Algorithms, Computing and Machine Learning (CACML)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125149206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Experimental Teaching Reform of Window Function Design in Digital Signal Processing Course","authors":"Shaoming Wei, Xin Ma, Jun Wang","doi":"10.1109/CACML55074.2022.00071","DOIUrl":"https://doi.org/10.1109/CACML55074.2022.00071","url":null,"abstract":"Window functions are widely used in communication, image, voice, sonar and other information processing. At the same time, the design of window function is closely related to the design of digital filter in the course of digital signal processing, so this content is particularly important in teaching. In order to make students familiar with the design and application of window function, this paper introduces the characteristics and application of window function in detail, and through three experiments, including the effect of whole-cycle sampling on spectral leakage, the effect of different window functions on spectral leakage, and the effect of different window functions on spectral resolution, enables students to better grasp the principle of window function and devote themselves to solving practical problems.","PeriodicalId":137505,"journal":{"name":"2022 Asia Conference on Algorithms, Computing and Machine Learning (CACML)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125215599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Face alignment by learning from small real datasets and large synthetic datasets","authors":"Haoqi Gao, K. Ogawara","doi":"10.1109/CACML55074.2022.00073","DOIUrl":"https://doi.org/10.1109/CACML55074.2022.00073","url":null,"abstract":"In recent years, face-related research had a wide variety of real-life applications. However, issues such as privacy violations and data abuse caused by its applications have also triggered global controversy. It is undeniable that face-related technology is efficient and convenient, but the dangers and risks are hidden by face technology should be comprehensively considered. Current face algorithms are still challenging in complex and challenging environments (e.g., large angles or expressions). Firstly the existing public training datasets are mostly frontal faces, which have an unbalanced distribution of challenging data. Secondly, the collected real datasets require explicit user consent, and the annotation process is time-consuming and expensive. In this paper, we open a new research direction through synthetic datasets. We try to use synthetic datasets to reduce the dependence of the model on the real-world data set. The face alignment experiments explore the synthetic dataset's complementarity and availability.","PeriodicalId":137505,"journal":{"name":"2022 Asia Conference on Algorithms, Computing and Machine Learning (CACML)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116588480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}