Pub Date : 2012-05-16DOI: 10.1109/ECTICON.2012.6254297
R. Diewvilai, R. Nidhiritdhikrai, B. Eua-arporn
Demand side management (DSM) can help reduce demand of the system, resulting in less generating capacity and less total production cost in the future. Generally, each DSM activity, e.g., replacing old with new higher efficiency equipment, has its own cost. Its worth in the system may be used as one of the decision components. Therefore, the methodology in evaluating the DSM worth under the framework of long-term generation system planning will be proposed in this paper. With the obtained results, the system planners will be able to select DSM programs more appropriately.
{"title":"Demand side management worth evaluation under generation system planning framework","authors":"R. Diewvilai, R. Nidhiritdhikrai, B. Eua-arporn","doi":"10.1109/ECTICON.2012.6254297","DOIUrl":"https://doi.org/10.1109/ECTICON.2012.6254297","url":null,"abstract":"Demand side management (DSM) can help reduce demand of the system, resulting in less generating capacity and less total production cost in the future. Generally, each DSM activity, e.g., replacing old with new higher efficiency equipment, has its own cost. Its worth in the system may be used as one of the decision components. Therefore, the methodology in evaluating the DSM worth under the framework of long-term generation system planning will be proposed in this paper. With the obtained results, the system planners will be able to select DSM programs more appropriately.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"96 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2012-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85781928","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}
Pub Date : 2012-05-16DOI: 10.1109/ECTICON.2012.6254246
S. Nimnon, M. Phadoongsidhi, N. Utamaphethai
Boolean satisfiability problem (SAT) is an NP-complete decision problem for determining whether there exists a variable assignment making a Boolean expression satisfiable (TRUE). SAT has been the cornerstone for various Computer Engineering applications. Numerous algorithms for solving SAT exist with varying degrees of completeness and complexity. A class of SAT algorithms based on stochastic local search (SLS) is generally easier to implement than backtracking search procedures. This paper discusses cwSAT, a parallel implementation of an SLS procedure, WalkSAT, on a GPGPU architecture. The performance of cwSAT is compared with that of WalkSAT using 200 benchmarks in Random class of SAT11 Competition. Experimental results showed that cwSAT can find satisfiable assignments for over 99% of the benchmarks while the average improvement of cwSAT is approximately 33% to 98% over WalkSAT.
{"title":"Parallelization of stochastic algorithm for boolean satisfiability on GPGPU architecture","authors":"S. Nimnon, M. Phadoongsidhi, N. Utamaphethai","doi":"10.1109/ECTICON.2012.6254246","DOIUrl":"https://doi.org/10.1109/ECTICON.2012.6254246","url":null,"abstract":"Boolean satisfiability problem (SAT) is an NP-complete decision problem for determining whether there exists a variable assignment making a Boolean expression satisfiable (TRUE). SAT has been the cornerstone for various Computer Engineering applications. Numerous algorithms for solving SAT exist with varying degrees of completeness and complexity. A class of SAT algorithms based on stochastic local search (SLS) is generally easier to implement than backtracking search procedures. This paper discusses cwSAT, a parallel implementation of an SLS procedure, WalkSAT, on a GPGPU architecture. The performance of cwSAT is compared with that of WalkSAT using 200 benchmarks in Random class of SAT11 Competition. Experimental results showed that cwSAT can find satisfiable assignments for over 99% of the benchmarks while the average improvement of cwSAT is approximately 33% to 98% over WalkSAT.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"243 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2012-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75997224","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}
Pub Date : 2012-05-16DOI: 10.1109/ECTICON.2012.6254175
J. Vongkulbhisal, Yan Zhao
In this paper, we propose an indoor localization system using radio frequency identification (RFID) technology. Locations of passive RFID tags are determined by scanning multiple RFID reader antennas' radiation beams. During each scan, the horizontal and elevation angles of the reader antenna are recorded when the transition of a tag entering or leaving the antenna beam's coverage area occurs, and this angle information is used in the developed algorithm to calculate the tag's location. The proposed system requires a minimum of two reader antennas, without the need for reference tags. Experimental results obtained from a controlled environment demonstrate that the average localization error distance of the proposed beam scanning method is less than 20 cm.
{"title":"An RFID-based indoor localization system using antenna beam scanning","authors":"J. Vongkulbhisal, Yan Zhao","doi":"10.1109/ECTICON.2012.6254175","DOIUrl":"https://doi.org/10.1109/ECTICON.2012.6254175","url":null,"abstract":"In this paper, we propose an indoor localization system using radio frequency identification (RFID) technology. Locations of passive RFID tags are determined by scanning multiple RFID reader antennas' radiation beams. During each scan, the horizontal and elevation angles of the reader antenna are recorded when the transition of a tag entering or leaving the antenna beam's coverage area occurs, and this angle information is used in the developed algorithm to calculate the tag's location. The proposed system requires a minimum of two reader antennas, without the need for reference tags. Experimental results obtained from a controlled environment demonstrate that the average localization error distance of the proposed beam scanning method is less than 20 cm.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"174 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2012-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76113069","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}
Pub Date : 2012-05-16DOI: 10.1109/ECTICON.2012.6254192
R. Phatthanakun, C. Pantong, C. Sriphung, W. Pummara, N. Chomnawang
This paper presents a rapid reproduction method of microparts based on the standard X-ray LIGA processes. The SU-8 master mold of microparts is fabricated by X-ray lithography which offers the high aspect ratio microstructure with vertical sidewall for high precision microparts. A 10:1 mixture of pre-polymer PDMS is cast onto the master mold and peeled off to create the replicated PDMS. It is pressed on the substrate coated with chromium seed layer, resulting in the temporary bonding between them. Nickel is then grown inside the replicated PDMS to create another metallic micropart by electroplating. After the replicated PDMS is removed from the sample, the over-electroplated microparts are covered with unexposed SU-8 photoresist and planarized to achieve the final thickness, followed by photoresist removal. The metallic microparts are finally released from the substrate by the mechanical force, resulting in the massive reproduced metallic microparts. The key geometric dimensional changes throughout the process were less than 1% which obviously confirmed the reliability of the reproduction using X-ray LIGA technology. The proposed method offers the rapid replication of micromolds and microparts in low-cost mass production without further X-ray lithography process.
{"title":"Reproduction of microparts based on standard X-ray LIGA processes for mass production","authors":"R. Phatthanakun, C. Pantong, C. Sriphung, W. Pummara, N. Chomnawang","doi":"10.1109/ECTICON.2012.6254192","DOIUrl":"https://doi.org/10.1109/ECTICON.2012.6254192","url":null,"abstract":"This paper presents a rapid reproduction method of microparts based on the standard X-ray LIGA processes. The SU-8 master mold of microparts is fabricated by X-ray lithography which offers the high aspect ratio microstructure with vertical sidewall for high precision microparts. A 10:1 mixture of pre-polymer PDMS is cast onto the master mold and peeled off to create the replicated PDMS. It is pressed on the substrate coated with chromium seed layer, resulting in the temporary bonding between them. Nickel is then grown inside the replicated PDMS to create another metallic micropart by electroplating. After the replicated PDMS is removed from the sample, the over-electroplated microparts are covered with unexposed SU-8 photoresist and planarized to achieve the final thickness, followed by photoresist removal. The metallic microparts are finally released from the substrate by the mechanical force, resulting in the massive reproduced metallic microparts. The key geometric dimensional changes throughout the process were less than 1% which obviously confirmed the reliability of the reproduction using X-ray LIGA technology. The proposed method offers the rapid replication of micromolds and microparts in low-cost mass production without further X-ray lithography process.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"12 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2012-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78911951","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}
Pub Date : 2012-05-16DOI: 10.1109/ECTICON.2012.6254289
K. Thongkor, T. Pramoun, C. Chaisri, T. Amornraksa
Problem of altering content of faxed document extends in wider range including in Thailand. Since most companies/organizations in Thailand use only one fax machine for common use in each department to reduce the telephone payment and complexity of fax management, someone with malicious intention may get a faxed document directly and personally from fax machine, and then alter the content inside for his/her benefits. In this paper, such problem is addressed, and an integrity verification method of Thai content for faxed document based on MAC algorithm is proposed to detect changes in its content. Our proposed method can be applied to both traditional machine based faxing and Internet fax & fax software. The experimental results show the efficiency of the proposed method with different font sizes.
{"title":"Integrity verification method of Thai content for faxed document","authors":"K. Thongkor, T. Pramoun, C. Chaisri, T. Amornraksa","doi":"10.1109/ECTICON.2012.6254289","DOIUrl":"https://doi.org/10.1109/ECTICON.2012.6254289","url":null,"abstract":"Problem of altering content of faxed document extends in wider range including in Thailand. Since most companies/organizations in Thailand use only one fax machine for common use in each department to reduce the telephone payment and complexity of fax management, someone with malicious intention may get a faxed document directly and personally from fax machine, and then alter the content inside for his/her benefits. In this paper, such problem is addressed, and an integrity verification method of Thai content for faxed document based on MAC algorithm is proposed to detect changes in its content. Our proposed method can be applied to both traditional machine based faxing and Internet fax & fax software. The experimental results show the efficiency of the proposed method with different font sizes.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"25 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2012-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78942707","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}
Pub Date : 2012-05-16DOI: 10.1109/ECTICON.2012.6254127
P. Phoosekieaw, S. Khunkhao
The technology of surface finishes for printed circuit boards is seeing a dramatic shift from the hot air solder leveling (HASL) towards alternative finishes like electroless nickel immersion gold (ENIG), immersion silver and organic solder preservatives (OSP). It is expected that soldering in nitrogen atmosphere might overcome some of the technical barriers and provide soldered products comparable to those conventional lead-containing materials processed in air. but quantitative data regarding the soldering behaviour of lead-free solders under various atmospheres are sparse. As part of an ongoing study on the effects of inerting on the solderability of lead-free alloys an examination has been made of solderability, as measured in a wetting balance of three common board finishes using a 95.5/3.8/0.7 SnAgCu solder.The board finishes used were ENIG HASL, immersion silver and a copper OSP. A peak reflow temperature of 250°C and an R flux was used for the ENIG and Ag finishes. The OSP finish performed poorly under these conditions and OSP testing was done using a 235°C peak temperature and a 0.5% activated R flux. During testing the atmospheres were controlled at levels of oxygen of 21% (air) 10000, 1000 and 100 ppm. Although inerting improved the solderability of all three finishes, there were differences between the individual alloys, Aging by multiple reflow cycles adversely affected the solder ability of all finishes but the effects were less for ENIG than the other finishes.
{"title":"A study of several board finish solderability with Sn-Ag-Cu under different atmospheres","authors":"P. Phoosekieaw, S. Khunkhao","doi":"10.1109/ECTICON.2012.6254127","DOIUrl":"https://doi.org/10.1109/ECTICON.2012.6254127","url":null,"abstract":"The technology of surface finishes for printed circuit boards is seeing a dramatic shift from the hot air solder leveling (HASL) towards alternative finishes like electroless nickel immersion gold (ENIG), immersion silver and organic solder preservatives (OSP). It is expected that soldering in nitrogen atmosphere might overcome some of the technical barriers and provide soldered products comparable to those conventional lead-containing materials processed in air. but quantitative data regarding the soldering behaviour of lead-free solders under various atmospheres are sparse. As part of an ongoing study on the effects of inerting on the solderability of lead-free alloys an examination has been made of solderability, as measured in a wetting balance of three common board finishes using a 95.5/3.8/0.7 SnAgCu solder.The board finishes used were ENIG HASL, immersion silver and a copper OSP. A peak reflow temperature of 250°C and an R flux was used for the ENIG and Ag finishes. The OSP finish performed poorly under these conditions and OSP testing was done using a 235°C peak temperature and a 0.5% activated R flux. During testing the atmospheres were controlled at levels of oxygen of 21% (air) 10000, 1000 and 100 ppm. Although inerting improved the solderability of all three finishes, there were differences between the individual alloys, Aging by multiple reflow cycles adversely affected the solder ability of all finishes but the effects were less for ENIG than the other finishes.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"127 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2012-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77077673","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}
Pub Date : 2012-05-16DOI: 10.1109/ECTICON.2012.6254228
Prapoch Jirasakulporn, S. Chaimool, P. Akkaraekthalin
This paper proposes gain enhancement technique for microstrip antenna by using square aperture superstrate. The microstrip antenna and superstrate is performed as Fabry-Perot resonator antenna, resulting in plentifully attracted properties. The proposed antenna was designed to operate at 12.2 GHz. The measured gain of the antenna was increased to be 11.95 dBi or 5.35 dB improved from the microstrip antenna without superstrate. The proposed antenna also has a good cross-polarization discrimination over 30 dB in both E and H planes. In addition, the square aperture superstrate could be created on a low cost printed broad with low complicate structure. The prototype antenna characteristics were presented and compared, which measured and simulated results.
{"title":"Gain enhancement of microstrip antenna using square aperture superstrate","authors":"Prapoch Jirasakulporn, S. Chaimool, P. Akkaraekthalin","doi":"10.1109/ECTICON.2012.6254228","DOIUrl":"https://doi.org/10.1109/ECTICON.2012.6254228","url":null,"abstract":"This paper proposes gain enhancement technique for microstrip antenna by using square aperture superstrate. The microstrip antenna and superstrate is performed as Fabry-Perot resonator antenna, resulting in plentifully attracted properties. The proposed antenna was designed to operate at 12.2 GHz. The measured gain of the antenna was increased to be 11.95 dBi or 5.35 dB improved from the microstrip antenna without superstrate. The proposed antenna also has a good cross-polarization discrimination over 30 dB in both E and H planes. In addition, the square aperture superstrate could be created on a low cost printed broad with low complicate structure. The prototype antenna characteristics were presented and compared, which measured and simulated results.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"24 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2012-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80868044","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}
Pub Date : 2012-05-16DOI: 10.1109/ECTICON.2012.6254135
T. Intharah, N. Khiripet
Segmenting characters from mural images is a crucial basic operation for other tasks whose common goal is to preserve the mural art, one of the important Thai cultural heritage. The problem is effective segmentation algorithms, which are used at present, are semi-automatic and general purpose; so users have to put heavy effort to get the satisfied result. Hence this paper proposes the automatic segmentation algorithm to segment characters from mural images automatically. The algorithm is divided into two main parts: automatic selection part and segmentation part. In automatic selection, we applied spectral residual to play a key role in selecting regions of interest, i.e., an object region and a background region to be inputs of the segmentation part. In segmentation part, an iterated graph-cut is used as the main mechanism of the segmentation in this work. Besides, In order to improve performance of the iterated graph-cuts, a superpixels algorithm is applied. Result of the algorithm from ordinary background images is 7.49% misclassified pixels with precision 73.02% and recall 94.64%.
{"title":"MuralCut: Automatic character segmentation from mural images","authors":"T. Intharah, N. Khiripet","doi":"10.1109/ECTICON.2012.6254135","DOIUrl":"https://doi.org/10.1109/ECTICON.2012.6254135","url":null,"abstract":"Segmenting characters from mural images is a crucial basic operation for other tasks whose common goal is to preserve the mural art, one of the important Thai cultural heritage. The problem is effective segmentation algorithms, which are used at present, are semi-automatic and general purpose; so users have to put heavy effort to get the satisfied result. Hence this paper proposes the automatic segmentation algorithm to segment characters from mural images automatically. The algorithm is divided into two main parts: automatic selection part and segmentation part. In automatic selection, we applied spectral residual to play a key role in selecting regions of interest, i.e., an object region and a background region to be inputs of the segmentation part. In segmentation part, an iterated graph-cut is used as the main mechanism of the segmentation in this work. Besides, In order to improve performance of the iterated graph-cuts, a superpixels algorithm is applied. Result of the algorithm from ordinary background images is 7.49% misclassified pixels with precision 73.02% and recall 94.64%.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"49 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2012-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87547283","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}
Pub Date : 2012-05-16DOI: 10.1109/ECTICON.2012.6254330
J. Tippinit, W. Asawamethapant
In this paper, we present the improvement of optical properties of 1 × 8 arrayed waveguide grating (AWG) de-multiplexer by adding Transmission Star Couplers (TSC) into Free Propagation Region 1 (FPR1) which has refractive index 1.455. It is found that the appropriate value of refractive index of TSC area is 1.460. Using this method, the insertion loss of AWG decreased from 1.79 dB to 1.58 dB while the crosstalk increased from -23.94 dB to -22.49 dB. To maintain the problem of the increased crosstalk, the traditional output guide structure is replaced by a taper structure which has start width 11 μm and end width 6 μm. Then, the insertion loss is reduced from 1.58 dB to 1.09 dB, and the crosstalk is reduced from -22.49 dB to -24.94 dB, respectively. Therefore, by using all design concepts, the appropriate structure of proposed AWG can be achieved. The size of the proposed AWG is the half of that of the traditional AWG, and the insertion loss of the proposed AWG is lower than that of the traditional AWG.
{"title":"Optical properties improvement on AWG Achieved by Adding Transmission Star Couplers into FPR1","authors":"J. Tippinit, W. Asawamethapant","doi":"10.1109/ECTICON.2012.6254330","DOIUrl":"https://doi.org/10.1109/ECTICON.2012.6254330","url":null,"abstract":"In this paper, we present the improvement of optical properties of 1 × 8 arrayed waveguide grating (AWG) de-multiplexer by adding Transmission Star Couplers (TSC) into Free Propagation Region 1 (FPR1) which has refractive index 1.455. It is found that the appropriate value of refractive index of TSC area is 1.460. Using this method, the insertion loss of AWG decreased from 1.79 dB to 1.58 dB while the crosstalk increased from -23.94 dB to -22.49 dB. To maintain the problem of the increased crosstalk, the traditional output guide structure is replaced by a taper structure which has start width 11 μm and end width 6 μm. Then, the insertion loss is reduced from 1.58 dB to 1.09 dB, and the crosstalk is reduced from -22.49 dB to -24.94 dB, respectively. Therefore, by using all design concepts, the appropriate structure of proposed AWG can be achieved. The size of the proposed AWG is the half of that of the traditional AWG, and the insertion loss of the proposed AWG is lower than that of the traditional AWG.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"143 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2012-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90541776","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}
Pub Date : 2012-05-16DOI: 10.1109/ECTICON.2012.6254213
Y. Chompusri, K. Dejhan, S. Yimman
The electrocardiogram compression method presented in this research processes the residual signal which is the difference between the original signal and the reference signal. The residual signal is transformed to wavelet domain and then the redundant information is eliminated in wavelet domain. The selection of mother wavelet is one of main factor to maintain the important data in wavelet domain. The difference type of mother wavelet has its own shape and its own characteristic. Therefore this affects to the performance of compression. This work compares the efficiency of compression algorithm by using difference type of Mother Wavelet. The test shows that no mother wavelet which is the best for all ECG. Thereby, reducing the time consuming for selection the proper mother wavelet, the Best of Four Method is introduced. This algorithm uses four types of mother wavelet to be competitors, `db1', `db2', `db9' and `bior2.4'. The result shows that the selected mother wavelet types have the good performance on overall tested signals. Moreover, the `db1' mother wavelet has the best performance on more than a half of all signals.
{"title":"Mother wavelet selecting method for selective mapping technique ECG compression","authors":"Y. Chompusri, K. Dejhan, S. Yimman","doi":"10.1109/ECTICON.2012.6254213","DOIUrl":"https://doi.org/10.1109/ECTICON.2012.6254213","url":null,"abstract":"The electrocardiogram compression method presented in this research processes the residual signal which is the difference between the original signal and the reference signal. The residual signal is transformed to wavelet domain and then the redundant information is eliminated in wavelet domain. The selection of mother wavelet is one of main factor to maintain the important data in wavelet domain. The difference type of mother wavelet has its own shape and its own characteristic. Therefore this affects to the performance of compression. This work compares the efficiency of compression algorithm by using difference type of Mother Wavelet. The test shows that no mother wavelet which is the best for all ECG. Thereby, reducing the time consuming for selection the proper mother wavelet, the Best of Four Method is introduced. This algorithm uses four types of mother wavelet to be competitors, `db1', `db2', `db9' and `bior2.4'. The result shows that the selected mother wavelet types have the good performance on overall tested signals. Moreover, the `db1' mother wavelet has the best performance on more than a half of all signals.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"46 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2012-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90620199","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}
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