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Efficient object location determination and error analysis based on barycentric coordinates. 基于质心坐标的高效目标定位与误差分析。
4区 计算机科学
Visual Computing for Industry, Biomedicine, and Art Pub Date : 2020-07-31 DOI: 10.1186/s42492-020-00052-y
Andrea Bodonyi, Roland Kunkli
{"title":"Efficient object location determination and error analysis based on barycentric coordinates.","authors":"Andrea Bodonyi,&nbsp;Roland Kunkli","doi":"10.1186/s42492-020-00052-y","DOIUrl":"https://doi.org/10.1186/s42492-020-00052-y","url":null,"abstract":"<p><p>In this paper, we propose an efficient computational method for converting local coordinates to world coordinates using specially structured coordinate data. The problem in question is the computation of world coordinates of an object throughout a motion, assuming that we only know the changing coordinates of some fixed surrounding reference points in the local coordinate system of the object. The proposed method is based on barycentric coordinates; by taking the aforementioned static positions as the vertices of a polyhedron, we can specify the coordinates of the object in each step with the help of barycentric coordinates. This approach can significantly help us to achieve more accurate results than by using other possible methods. In the paper, we describe the problem and barycentric coordinate-based solution in detail. We then compare the barycentric method with a technique based on transformation matrices, which we also tested for solving our problem. We also present various diagrams that demonstrate the efficiency of our proposed approach in terms of precision and performance.</p>","PeriodicalId":52384,"journal":{"name":"Visual Computing for Industry, Biomedicine, and Art","volume":"3 1","pages":"18"},"PeriodicalIF":0.0,"publicationDate":"2020-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1186/s42492-020-00052-y","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38213573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Implementation and experiments for interactive lyrics transcreation system. 交互式歌词创作系统的实现与实验。
4区 计算机科学
Visual Computing for Industry, Biomedicine, and Art Pub Date : 2020-07-30 DOI: 10.1186/s42492-020-00053-x
Ayano Nishimura, Takayuki Itoh
{"title":"Implementation and experiments for interactive lyrics transcreation system.","authors":"Ayano Nishimura,&nbsp;Takayuki Itoh","doi":"10.1186/s42492-020-00053-x","DOIUrl":"https://doi.org/10.1186/s42492-020-00053-x","url":null,"abstract":"<p><p>The evolution of the Internet has enabled us to enjoy the music created in various countries. But still, it is often difficult to understand the lyrics written in foreign languages. Professional translators have published many international songs with lyrics that fit the melody so that the ordinary people can enjoy the lyrics of such international songs. This paper discusses lyrics transcreation into the Japanese language. Also, the paper presents an interactive visual lyrics transcreation system and describes the details of its implementation. This system allows users to select temporary lyrics from a set of tentative translations and then freely modify the lyrics with a real-time visualization mechanism. We also propose a lyrics translation algorithm that solves an essential problem of lyrics translation into Japanese. In this study, we interviewed two experts regarding problems with lyrics translation and received reviews of our presented system. We also conducted preliminary experiments with 19 participants to determine the best combination of user interface components for our system. We performed additional user experiments inviting 12 participants to compare lyrics transcreation using the presented system to manual lyrics transcreation. Lyrics transcreation by the presented system brought better results against those of manual transcreation.</p>","PeriodicalId":52384,"journal":{"name":"Visual Computing for Industry, Biomedicine, and Art","volume":"3 1","pages":"17"},"PeriodicalIF":0.0,"publicationDate":"2020-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1186/s42492-020-00053-x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38220639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Projection-domain iteration to estimate unreliable measurements. 投影域迭代估计不可靠的测量。
4区 计算机科学
Visual Computing for Industry, Biomedicine, and Art Pub Date : 2020-07-21 DOI: 10.1186/s42492-020-00054-w
Gengsheng L Zeng
{"title":"Projection-domain iteration to estimate unreliable measurements.","authors":"Gengsheng L Zeng","doi":"10.1186/s42492-020-00054-w","DOIUrl":"https://doi.org/10.1186/s42492-020-00054-w","url":null,"abstract":"<p><p>Due to the beam-hardening effect of the broad energy spectrum of the X-ray source in computed tomography, the reconstructed images usually suffer from severe artifacts when metallic objects are being imaged. Metal artifact correction methods are usually sophisticated and not practical, especially in some non-medical applications, in which the linear attenuation coefficients are unknown. This paper suggests a simple and effective algorithm to estimate the unreliable measurements. The proposed algorithm is an iterative algorithm, in which the iteration is performed in the projection domain, while the objective function is set up in the image domain. The final image is reconstructed with the conventional filtered backprojection algorithm. The feasibility of the proposed method is verified with airport bags that contain some unknown metals.</p>","PeriodicalId":52384,"journal":{"name":"Visual Computing for Industry, Biomedicine, and Art","volume":"3 1","pages":"16"},"PeriodicalIF":0.0,"publicationDate":"2020-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1186/s42492-020-00054-w","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38182924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Bibliometric review of visual computing in the construction industry. 建筑行业视觉计算文献计量学综述。
4区 计算机科学
Visual Computing for Industry, Biomedicine, and Art Pub Date : 2020-06-08 DOI: 10.1186/s42492-020-00050-0
Heng-Wei Wang, Zhen-Zhong Hu, Jia-Rui Lin
{"title":"Bibliometric review of visual computing in the construction industry.","authors":"Heng-Wei Wang,&nbsp;Zhen-Zhong Hu,&nbsp;Jia-Rui Lin","doi":"10.1186/s42492-020-00050-0","DOIUrl":"https://doi.org/10.1186/s42492-020-00050-0","url":null,"abstract":"<p><p>In the construction area, visuals such as drawings, photos, videos, and 3D models, play a significant role in the design, build and maintenance of a facility, bringing efficiency to generate, transfer, and store information. Advanced visual computing techniques facilitate the understanding of design contents, work plans, and other types of information shared in the construction industry. Automatic visual data collection and analysis provide many possibilities to the construction industry and a large number of works have investigated how visual computing can improve construction management processes and other problems in the construction area. However, a comprehensive literature review is needed. This study uses bibliometric approaches to review the works published to date, and analyses the development of knowledge, significant research results, and trends. The purpose of this study is to help newcomers to this research field understand knowledge structure and formulate research directions, thereby enhancing knowledge development. From this study, it can be concluded that computer vision is a key axis of improvement. Moreover, building information modeling, laser scanning, and other visualization-related techniques are also important in advancing the construction area.</p>","PeriodicalId":52384,"journal":{"name":"Visual Computing for Industry, Biomedicine, and Art","volume":"3 1","pages":"14"},"PeriodicalIF":0.0,"publicationDate":"2020-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7276469/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38021567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A digital assistant for shading paper sketches. 一个数字助手为底纹纸草图。
4区 计算机科学
Visual Computing for Industry, Biomedicine, and Art Pub Date : 2020-06-08 DOI: 10.1186/s42492-020-00049-7
Amal Dev Parakkat, Hari Hara Gowtham, Sarang Joshi, Ramanathan Muthuganapathy
{"title":"A digital assistant for shading paper sketches.","authors":"Amal Dev Parakkat,&nbsp;Hari Hara Gowtham,&nbsp;Sarang Joshi,&nbsp;Ramanathan Muthuganapathy","doi":"10.1186/s42492-020-00049-7","DOIUrl":"https://doi.org/10.1186/s42492-020-00049-7","url":null,"abstract":"<p><p>We present a mixed reality-based assistive system for shading paper sketches. Given a paper sketch made by an artist, our interface helps inexperienced users to shade it appropriately. Initially, using a simple Delaunay-triangulation based inflation algorithm, an approximate depth map is computed. The system then highlights areas (to assist shading) based on a rendering of the 2.5-dimensional inflated model of the input contour. With the help of a mixed reality system, we project the highlighted areas back to aid users. The hints given by the system are used for shading and are smudged appropriately to apply an artistic shading to the sketch. The user is given flexibility at various levels to simulate conditions such as height and light position. Experiments show that the proposed system aids novice users in creating sketches with impressive shading.</p>","PeriodicalId":52384,"journal":{"name":"Visual Computing for Industry, Biomedicine, and Art","volume":"3 1","pages":"15"},"PeriodicalIF":0.0,"publicationDate":"2020-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1186/s42492-020-00049-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38022581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pre-filter that incorporates the noise model. 包含噪声模型的预滤波器。
4区 计算机科学
Visual Computing for Industry, Biomedicine, and Art Pub Date : 2020-05-22 DOI: 10.1186/s42492-020-00051-z
Gengsheng L Zeng
{"title":"Pre-filter that incorporates the noise model.","authors":"Gengsheng L Zeng","doi":"10.1186/s42492-020-00051-z","DOIUrl":"10.1186/s42492-020-00051-z","url":null,"abstract":"<p><p>A linear denoising filter is usually of lowpass type, and the main parameter in a lowpass filter is the cutoff frequency. The lowpass filters are normally shift invariant and can be implemented as convolution in the spatial domain or as multiplication in the Fourier domain. This paper presents a linear filter that is not characterized by its cutoff frequency but is characterized by the noise model. An example of such a linear filter is presented for low-dose X-ray computed tomography (CT).</p>","PeriodicalId":52384,"journal":{"name":"Visual Computing for Industry, Biomedicine, and Art","volume":"3 1","pages":"13"},"PeriodicalIF":0.0,"publicationDate":"2020-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7242545/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37964771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Classes of tree-based networks. 树状网络的分类。
4区 计算机科学
Visual Computing for Industry, Biomedicine, and Art Pub Date : 2020-05-15 DOI: 10.1186/s42492-020-00043-z
Mareike Fischer, Michelle Galla, Lina Herbst, Yangjing Long, Kristina Wicke
{"title":"Classes of tree-based networks.","authors":"Mareike Fischer,&nbsp;Michelle Galla,&nbsp;Lina Herbst,&nbsp;Yangjing Long,&nbsp;Kristina Wicke","doi":"10.1186/s42492-020-00043-z","DOIUrl":"https://doi.org/10.1186/s42492-020-00043-z","url":null,"abstract":"<p><p>Recently, so-called tree-based phylogenetic networks have attracted considerable attention. These networks can be constructed from a phylogenetic tree, called the base tree, by adding additional edges. The primary aim of this study is to provide sufficient criteria for tree-basedness by reducing phylogenetic networks to related graph structures. Even though it is generally known that determining whether a network is tree-based is an NP-complete problem, one of these criteria, namely edge-basedness, can be verified in linear time. Surprisingly, the class of edge-based networks is closely related to a well-known family of graphs, namely, the class of generalized series-parallel graphs, and we explore this relationship in full detail. Additionally, we introduce further classes of tree-based networks and analyze their relationships.</p>","PeriodicalId":52384,"journal":{"name":"Visual Computing for Industry, Biomedicine, and Art","volume":"3 1","pages":"12"},"PeriodicalIF":0.0,"publicationDate":"2020-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7229134/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37942882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Software development for modeling irregular fine protrusions formed by sputter etching. 溅射蚀刻形成的不规则精细突起建模软件开发。
4区 计算机科学
Visual Computing for Industry, Biomedicine, and Art Pub Date : 2020-05-07 DOI: 10.1186/s42492-020-00047-9
Sande Gao, Keijiro Nakasa, Loulin Huang
{"title":"Software development for modeling irregular fine protrusions formed by sputter etching.","authors":"Sande Gao,&nbsp;Keijiro Nakasa,&nbsp;Loulin Huang","doi":"10.1186/s42492-020-00047-9","DOIUrl":"https://doi.org/10.1186/s42492-020-00047-9","url":null,"abstract":"<p><p>Irregular fine protrusions formed on the surface of a mechanical part through biomimetic technology can enhance the part's properties, including tribology, self-cleaning, and light absorption. However, underlying principles for the formation of fine protrusions according to the requirements of their shapes, sizes, and material distributions have not been studied sufficiently. This paper presents the software development for modeling irregular fine protrusions, which is essential for the simulation, experimentation, and analysis of fine protrusions formed by sputter etching.</p>","PeriodicalId":52384,"journal":{"name":"Visual Computing for Industry, Biomedicine, and Art","volume":"3 1","pages":"11"},"PeriodicalIF":0.0,"publicationDate":"2020-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1186/s42492-020-00047-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37909328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Poisson-noise weighted filter for time-of-flight positron emission tomography. 用于飞行时间正电子发射断层扫描的泊松噪声加权滤波器。
4区 计算机科学
Visual Computing for Industry, Biomedicine, and Art Pub Date : 2020-04-29 DOI: 10.1186/s42492-020-00048-8
Gengsheng L Zeng, Li Lv, Qiu Huang
{"title":"Poisson-noise weighted filter for time-of-flight positron emission tomography.","authors":"Gengsheng L Zeng, Li Lv, Qiu Huang","doi":"10.1186/s42492-020-00048-8","DOIUrl":"10.1186/s42492-020-00048-8","url":null,"abstract":"<p><p>Image reconstruction for list-mode time-of-flight (TOF) positron emission tomography (PET) can be achieved by analytic algorithms. The backprojection filtering (BPF) algorithm is an efficient algorithm for this task. The conventional noise control method for analytic image reconstruction is the use of a stationary lowpass filter, which does not model the Poisson noise properly. This study proposes a nonstationary filter for Poisson noise control. The filter is implemented in the spatial domain in a form similar to convolution.</p>","PeriodicalId":52384,"journal":{"name":"Visual Computing for Industry, Biomedicine, and Art","volume":"3 1","pages":"10"},"PeriodicalIF":0.0,"publicationDate":"2020-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7190774/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37885611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Non-iterative image reconstruction from sparse magnetic resonance imaging radial data without priors. 稀疏磁共振成像径向数据无先验的非迭代图像重建。
4区 计算机科学
Visual Computing for Industry, Biomedicine, and Art Pub Date : 2020-04-23 DOI: 10.1186/s42492-020-00044-y
Gengsheng L Zeng, Edward V DiBella
{"title":"Non-iterative image reconstruction from sparse magnetic resonance imaging radial data without priors.","authors":"Gengsheng L Zeng,&nbsp;Edward V DiBella","doi":"10.1186/s42492-020-00044-y","DOIUrl":"https://doi.org/10.1186/s42492-020-00044-y","url":null,"abstract":"<p><p>The state-of-the-art approaches for image reconstruction using under-sampled k-space data are compressed sensing based. They are iterative algorithms that optimize objective functions with spatial and/or temporal constraints. This paper proposes a non-iterative algorithm to estimate the un-measured data and then to reconstruct the image with the efficient filtered backprojection algorithm. The feasibility of the proposed method is demonstrated with a patient magnetic resonance imaging study. The proposed method is also compared with the state-of-the-art iterative compressed-sensing image reconstruction method using the total-variation optimization norm.</p>","PeriodicalId":52384,"journal":{"name":"Visual Computing for Industry, Biomedicine, and Art","volume":"3 1","pages":"9"},"PeriodicalIF":0.0,"publicationDate":"2020-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1186/s42492-020-00044-y","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37863542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
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