Text Extraction from Complex Background Images

2013 ◽  
Vol 765-767 ◽  
pp. 975-979
Author(s):  
Chao Liu ◽  
Fei Peng Da ◽  
Chen Xing Wang

The rapid development of internet technology leads to an effective way to share ideas with digital information. Extracting text information from digital information especially complex background images has become increasingly important due to the demand of text understanding. In this paper, we propose a k-means clustering based method for text extraction. After locating text regions with the corner detection, an improved k-means algorithm is adopted to extract text from complex background. Experiment results show the high performance of the presented method.

2014 ◽  
Vol 989-994 ◽  
pp. 4086-4090
Author(s):  
Li Yan Liu

With the rapid development of communication technology and Internet technology, as well as the popularization of computer, the application of digital multimedia technology is more and more widely, video, voice and image gathering, editing, storage, and dissemination of digital information has become more and more convenient. However, it is because of the computer and the network popularization and the fragility of the digital information itself, digital multimedia data are more vulnerable to attack, digital products is also very easy to forged and tampered with. According to these digital multimedia data more easily by illegal processing problem, people put forward the concept of digital watermark. Digital watermark technology is used to realize the protection of digital information. In this paper, the digital watermark technology research starting from the practical application, the digital image watermark based on DCT domain is studied.


2014 ◽  
Vol 926-930 ◽  
pp. 2208-2212
Author(s):  
Yao Qin Liu

With the rapid development of Internet technology, a variety of Web data also grows at an alarming rate, which has brought great challenges for the traditional data access and storage . Distributed caching technology based on cloud computing nodes provides a storage service with high performance through a large cloud caching service.Distributed cache system in each cache server coordinates and works together effectively to realize the sharing of resources, which is an important means of cloud-based storage platform to improve application performance of the cloud.


2020 ◽  
Vol 13 (4) ◽  
pp. 1132-1153 ◽  
Author(s):  
Tianpei Zhou ◽  
Nan Zhang ◽  
Changzheng Wu ◽  
Yi Xie

Surface/interface nanoengineering of electrocatalysts and air electrodes will promote the rapid development of high-performance rechargeable Zn–air batteries.


2020 ◽  
Vol 16 ◽  
Author(s):  
Alper Gökbulut

Background: Chromatographic techniques such as TLC basically and, HPLC, GC, HPTLC equipped with various detectors are most frequently used for the qualitative and quantitative examination of herbals. Method: An overview of the recent literature concerning the usage of HPTLC for the analysis of medicinal plants has been reviewed. Results: During the last decade/s, HPTLC, a modern, sophisticated and automatized TLC technique with better and advanced separation efficiency, detection limit, data acquisition and processing, has been used for the analysis of herbal materials and preparations since the rapid development of technology in chromatography world. HPTLC with various detectors is a powerful analytical tool especially for the phytochemical applications such as herbal drug quantification and fingerprint analysis. Conclusion: In this review, a latest perspective has been established and some of the previous studies were summarized for the usage of HPTLC in the analysis of herbal remedies, dietary supplements and nutraceuticals.


2020 ◽  
Vol 12 (16) ◽  
pp. 6333
Author(s):  
Chan Liu ◽  
Raymond K. H. Chan ◽  
Maofu Wang ◽  
Zhe Yang

Harnessing the rapid development of mobile internet technology, the sharing economy has experienced unprecedented growth in the global economy, especially in China. Likely due to its increasing popularity, more and more businesses have adopted this label in China. There is a concern as to the essential meaning of the sharing economy. As it is difficult to have a universally accepted definition, we aim to map the sharing economy and demystify the use of it in China in this paper. We propose seven organizing essential elements of the sharing economy: access use rights instead of ownership, idle capacity, short term, peer-to-peer, Internet platforms mediated, for monetary profit, and shared value orientation. By satisfying all or only parts of these elements, we propose one typology of sharing economy, and to differentiate bona fide sharing economy from quasi- and pseudo-sharing economy. Finally, there are still many problems that need to be solved urgently in the real sharing economy from the perspective of the government, companies and individuals.


Micromachines ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 169
Author(s):  
Mengcheng Wang ◽  
Shenglin Ma ◽  
Yufeng Jin ◽  
Wei Wang ◽  
Jing Chen ◽  
...  

Through Silicon Via (TSV) technology is capable meeting effective, compact, high density, high integration, and high-performance requirements. In high-frequency applications, with the rapid development of 5G and millimeter-wave radar, the TSV interposer will become a competitive choice for radio frequency system-in-package (RF SIP) substrates. This paper presents a redundant TSV interconnect design for high resistivity Si interposers for millimeter-wave applications. To verify its feasibility, a set of test structures capable of working at millimeter waves are designed, which are composed of three pieces of CPW (coplanar waveguide) lines connected by single TSV, dual redundant TSV, and quad redundant TSV interconnects. First, HFSS software is used for modeling and simulation, then, a modified equivalent circuit model is established to analysis the effect of the redundant TSVs on the high-frequency transmission performance to solidify the HFSS based simulation. At the same time, a failure simulation was carried out and results prove that redundant TSV can still work normally at 44 GHz frequency when failure occurs. Using the developed TSV process, the sample is then fabricated and tested. Using L-2L de-embedding method to extract S-parameters of the TSV interconnection. The insertion loss of dual and quad redundant TSVs are 0.19 dB and 0.46 dB at 40 GHz, respectively.


Author(s):  
Yucheng Shen ◽  
Wei Lu

With the rapid development of Internet technology in China, mechanical drawing plays a more and more important role in social development and practice. The main purpose is to use the course of mechanical drawing to accurately represent the appearance, size, principle and technology of the machine. It is often called the language of communication in the industry. In order to make mechanical drawing better applied and practiced, and to make maximum use of Internet technical resources, the establishment of multimedia courseware teaching mechanism is the development trend of mechanical drawing.In order to adapt to the trend of network information, based on the multimedia environment, this paper studies the application of animation technology in mechanical drawing teaching, and constructs a small multimedia teaching platform. Through the explanation of animation courseware, students can better understand the making and principle of mechanical drawing, and cultivate students' divergent thinking. The teaching platform combines teaching material knowledge with practice to deepen students' understanding of the basic content of mechanical drawing. Finally, the rationality and practicability of the system are analyzed by investigating the platform users. The results show that the application of animation technology in mechanical drawing teaching is reasonable and practical.


Nanoscale ◽  
2021 ◽  
Author(s):  
Shaoyang Xiong ◽  
Yue Qin ◽  
Linhong Li ◽  
Guoyong Yang ◽  
Maohua Li ◽  
...  

In order to meet the requirement of thermal performance with the rapid development of high-performance electronic devices, constructing a three-dimensional thermal transport skeleton is an effective method for enhancing thermal...


2016 ◽  
Vol 9 (4) ◽  
pp. 225 ◽  
Author(s):  
Rosemary M. Shafack

The world faces immense challenges which range from people living in poverty and denied dignity, rising inequalities, unemployment, global health threats, natural disasters, spiraling conflicts, violent extremism, terrorism and related humanitarian crises leading to force displacement of people, the depletion of natural resources and environmental degradation and the resultant climate change problem, just to name these. Fortunately, there are recognized human rights in the context of the United Nations (UN) Universal Declaration of Human Right in Article 19 and the Africa Chatter. These problems have thus challenged the world’s organizations to think and reflect on the way forward and some of these ways are developmental plans which include the UN Post 2015 Sustainable Development Agenda, the African Union (AU) 2063 Development Agenda with 17 aspirations, the International Federation of Library Associations and Institutions (IFLA) Strategy Plan and key initiative and the Cameroon Development Vision 2035 emergence programme. These agendas require a number of stakeholders to intervene if these challenges must be reduced for the benefit of humanity. One of such stakeholders is the Library and Information Science (LIS) Profession. The question that comes up with respect to the Cameroon context is, “Is the LIS profession in Cameroon able to meet its information role?” In line with this, three research questions were coined to guide data collection for this paper. The survey method was adopted with document analysis and interview schedule constituting the main data collecting instruments. The simple descriptive statistical method was used for data analysis. The information profession is critical in the development agenda, because it provides the platform for access to various information that enhance the progress of all human activities. The LIS profession drives the knowledge economy. Thus it is well placed to roll the information literacy programmes of any nation to help people have access to quality information, enhance community education, social, health and economic needs thereby improving lives and development. There is equally the shift from a print to a digital information environment as supported by the advent of new Internet technology such as mobile or broadband. This is changing the means and mechanisms of information delivery in libraries which have the potential to lead, improve and provide more relevant services and programmes for users. This profession has proven to be the most suitable with skills and mandate to pull together, organize and make available and accessible information in all forms and formats to all irrespective of their social, educational and physical status. From the study it is clear that the LIS profession in Cameroon is not able to play its role of collector and steward of human heritage, is not able to play its fundamental role in enhancing education through the different libraries and information services, is not able to enhance and ensure inclusive, equitable, quality education and promote lifelong learning and is unable to increase access to information and knowledge assisted by ICTs to support sustainable development to help Cameroon in its development agenda. The recommendation is that it will be unfortunate for a nation like Cameroon not to afford to accord an appropriate attention to the LIS profession which is a suitable developmental tool. The government needs therefore to provide the needed status for this sector and put it on its agenda and this will usher in a new spirit of information professionalism in Cameroon that will go a long way to enhance literacy that is needed if Cameroon must develop.


Polymers ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1237 ◽  
Author(s):  
Yu Jiang ◽  
Xuemin Yan ◽  
Zhaofei Ma ◽  
Ping Mei ◽  
Wei Xiao ◽  
...  

Solid polymer electrolytes (SPEs) have attracted considerable attention due to the rapid development of the need for more safety and powerful lithium ion batteries. The prime requirements of solid polymer electrolytes are high ion conductivity, low glass transition temperature, excellent solubility to the conductive lithium salt, and good interface stability against Li anode, which makes PEO and its derivatives potential candidate polymer matrixes. This review mainly encompasses on the synthetic development of PEO-based SPEs (PSPEs), and the potential application of the resulting PSPEs for high performance, all-solid-state lithium ion batteries.


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