Pub Date : 1900-01-01DOI: 10.1109/SPACES.2015.7058283
R. Hemalatha, N. Santhiyakumari, S. Suresh
In the decade of technological advancement, the image processing techniques has made it possible to save lives of several beings. The diagnosis of cardiovascular involved in complex procedures whereas the analysis of blood vessels carried out. The image segmentation technique is used to eliminate such complexities in Ultrasound carotid image diagnosis. In this paper the implementation of segmented intima-media interface of the common carotid artery image has been proposed in real time Virtex Field Programmable Gate Array. The intima-media interface has been extracted using threshold segmentation technique. The pre-processing step is used to remove speckles present in the ultrasound carotid image and the morphological techniques can be used in segmentation algorithm with the aid of Aphelion Dev software. The resulting image has been implemented in Virtex which provides minimum hardware resources and low power consumption and is desirable for real time medical applications and analysis.
{"title":"Implementation of medical image segmentation using Virtex FPGA kit","authors":"R. Hemalatha, N. Santhiyakumari, S. Suresh","doi":"10.1109/SPACES.2015.7058283","DOIUrl":"https://doi.org/10.1109/SPACES.2015.7058283","url":null,"abstract":"In the decade of technological advancement, the image processing techniques has made it possible to save lives of several beings. The diagnosis of cardiovascular involved in complex procedures whereas the analysis of blood vessels carried out. The image segmentation technique is used to eliminate such complexities in Ultrasound carotid image diagnosis. In this paper the implementation of segmented intima-media interface of the common carotid artery image has been proposed in real time Virtex Field Programmable Gate Array. The intima-media interface has been extracted using threshold segmentation technique. The pre-processing step is used to remove speckles present in the ultrasound carotid image and the morphological techniques can be used in segmentation algorithm with the aid of Aphelion Dev software. The resulting image has been implemented in Virtex which provides minimum hardware resources and low power consumption and is desirable for real time medical applications and analysis.","PeriodicalId":432479,"journal":{"name":"2015 International Conference on Signal Processing and Communication Engineering Systems","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124058051","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 : 1900-01-01DOI: 10.1109/SPACES.2015.7058235
S. Arif, S. Pal
Local and global process fluctuations causes increase in threshold voltage (V,) variation in ultra-short channel devices like CMOS. Therefore, it is not possible to operate the CMOS based 6-Transistor (6T) SRAM cell bellow 600 mV. Hence, to mitigate the effect of process fluctuations a CNFET based 8T SRAM cell is proposed in this article. Different design metrics of an SRAM cell are accessed for the proposed cell and to show its effectiveness, the design metrics are compared with its conventional counterpart. The proposed cell consumes 2.06× less power during hold mode and it also offers improvement in write delay (read delay) by 5.23× (4.41×) @ 200 mV compared to conventional CMOS based 8T cell. It depicts its robustness against process fluctuations by showing narrower spread in write delay (95.17%), read delay (75.20%) and hold power consumption (87.34%) for the same supply voltage. The proposed CNFET based 8T cell shows 59.41% higher read stability @ 400 mV than the CMOS based 8T SRAM cell.
{"title":"Variation-resilient CNFET-based 8T SRAM cell for ultra-low-power application","authors":"S. Arif, S. Pal","doi":"10.1109/SPACES.2015.7058235","DOIUrl":"https://doi.org/10.1109/SPACES.2015.7058235","url":null,"abstract":"Local and global process fluctuations causes increase in threshold voltage (V,) variation in ultra-short channel devices like CMOS. Therefore, it is not possible to operate the CMOS based 6-Transistor (6T) SRAM cell bellow 600 mV. Hence, to mitigate the effect of process fluctuations a CNFET based 8T SRAM cell is proposed in this article. Different design metrics of an SRAM cell are accessed for the proposed cell and to show its effectiveness, the design metrics are compared with its conventional counterpart. The proposed cell consumes 2.06× less power during hold mode and it also offers improvement in write delay (read delay) by 5.23× (4.41×) @ 200 mV compared to conventional CMOS based 8T cell. It depicts its robustness against process fluctuations by showing narrower spread in write delay (95.17%), read delay (75.20%) and hold power consumption (87.34%) for the same supply voltage. The proposed CNFET based 8T cell shows 59.41% higher read stability @ 400 mV than the CMOS based 8T SRAM cell.","PeriodicalId":432479,"journal":{"name":"2015 International Conference on Signal Processing and Communication Engineering Systems","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121707238","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 : 1900-01-01DOI: 10.1109/SPACES.2015.7058251
C. V. Ravi Sankar, P. Jayasree
A single feed Broadband Circularly polarized Microstrip patch antenna array, operating at C-band frequency, have been analyzed and designed. The antenna is mainly intended to be used for continuous command transmission. In order to avoid energy losses due to mismatch of linear polarized antennas, we choose circularly polarized antennas. The proposed antenna configuration is designed and optimized by simulation studies using IE3D simulation software, which is based on the Method of Moments (MOM). A broadband circularly polarized Microstrip Antenna array is designed using RT Duriod 5880/ROGERS with dielectric thickness of 1.6 mm having simple coaxial probe feed.
{"title":"Design of broadband microstrip array antenna","authors":"C. V. Ravi Sankar, P. Jayasree","doi":"10.1109/SPACES.2015.7058251","DOIUrl":"https://doi.org/10.1109/SPACES.2015.7058251","url":null,"abstract":"A single feed Broadband Circularly polarized Microstrip patch antenna array, operating at C-band frequency, have been analyzed and designed. The antenna is mainly intended to be used for continuous command transmission. In order to avoid energy losses due to mismatch of linear polarized antennas, we choose circularly polarized antennas. The proposed antenna configuration is designed and optimized by simulation studies using IE3D simulation software, which is based on the Method of Moments (MOM). A broadband circularly polarized Microstrip Antenna array is designed using RT Duriod 5880/ROGERS with dielectric thickness of 1.6 mm having simple coaxial probe feed.","PeriodicalId":432479,"journal":{"name":"2015 International Conference on Signal Processing and Communication Engineering Systems","volume":"168 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121537354","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 : 1900-01-01DOI: 10.1109/SPACES.2015.7058259
S. Bachu, K. M. Chari
In modern world video compression technology is developed in to a bloomed field, with several techniques available for a wide range of applications like video transmission, HDTV, broadcast digital video. Motion Estimation (ME) is a key component for high quality video compression, which is characterized by its high computation complexity and memory requirements. Motion Estimation has been conventionally used in the application of video encoding, but nowadays researchers from various fields other than video encoding are turning towards ME to solve various real time problems in their respective fields. The main aim of the survey paper is to analyze ME in video compression techniques for video processing, especially to estimate how much amount of data to be compressed, which technique is faster and so on. We also compare video compression techniques with conventional methods like ES, ARP, Run length, and Huffman coding. The existing conventional techniques will be implemented on the MATLAB platform and the performance of video compression technique is evaluated with Compression Ratio (CR), Peak Signal to Noise Ratio (PSNR) and search patterns.
{"title":"A review on motion estimation in video compression","authors":"S. Bachu, K. M. Chari","doi":"10.1109/SPACES.2015.7058259","DOIUrl":"https://doi.org/10.1109/SPACES.2015.7058259","url":null,"abstract":"In modern world video compression technology is developed in to a bloomed field, with several techniques available for a wide range of applications like video transmission, HDTV, broadcast digital video. Motion Estimation (ME) is a key component for high quality video compression, which is characterized by its high computation complexity and memory requirements. Motion Estimation has been conventionally used in the application of video encoding, but nowadays researchers from various fields other than video encoding are turning towards ME to solve various real time problems in their respective fields. The main aim of the survey paper is to analyze ME in video compression techniques for video processing, especially to estimate how much amount of data to be compressed, which technique is faster and so on. We also compare video compression techniques with conventional methods like ES, ARP, Run length, and Huffman coding. The existing conventional techniques will be implemented on the MATLAB platform and the performance of video compression technique is evaluated with Compression Ratio (CR), Peak Signal to Noise Ratio (PSNR) and search patterns.","PeriodicalId":432479,"journal":{"name":"2015 International Conference on Signal Processing and Communication Engineering Systems","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123829753","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 : 1900-01-01DOI: 10.1109/SPACES.2015.7058277
R. K. Kumar, C. Jada, M. Feroz, V. A. Kumar, H. Yenala
This research addresses the problem of navigating a robotic vehicle autonomously on unstructured roads where road information is not accurate. A real-time system for finding and tracking unstructured road in off-road conditions is proposed. The subsystems of autonomous navigation - road detection, steering, and obstacle avoidance are discussed in detail. This method has been integrated into a vehicle and driven successfully for both structured and unstructured road. An overview of vehicle performance in field is provided.
{"title":"ROBOG an autonomously navigating vehicle based on road detection for unstructured road","authors":"R. K. Kumar, C. Jada, M. Feroz, V. A. Kumar, H. Yenala","doi":"10.1109/SPACES.2015.7058277","DOIUrl":"https://doi.org/10.1109/SPACES.2015.7058277","url":null,"abstract":"This research addresses the problem of navigating a robotic vehicle autonomously on unstructured roads where road information is not accurate. A real-time system for finding and tracking unstructured road in off-road conditions is proposed. The subsystems of autonomous navigation - road detection, steering, and obstacle avoidance are discussed in detail. This method has been integrated into a vehicle and driven successfully for both structured and unstructured road. An overview of vehicle performance in field is provided.","PeriodicalId":432479,"journal":{"name":"2015 International Conference on Signal Processing and Communication Engineering Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120969059","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 : 1900-01-01DOI: 10.1109/SPACES.2015.7058253
K. V. Kishore, G. Rajesh, Vijay Kumar, P. Srinivasulu, K. Kavya, Sarat K. Kotamraju
In this paper, the feasibility of an 8-way unequal amplitude equal phase power splitter using a conventional microstrip technology in the 430MHz UHF band is proposed for Tropospheric wind profiling radar. Feeder network with unequal amplitude is designed based on the side lobe level requirement -17db down from the main beam. The theoretical design and simulated results are presented to verify our proposed design. The main advantage of this present design is to reduce the complexity in Transmit-Receive module.
{"title":"Design and simulation of 8-way unequal amplitude equal phase RF feeder network using conventional microstrip technology for 430MHz Tropospheric wind profiling radar","authors":"K. V. Kishore, G. Rajesh, Vijay Kumar, P. Srinivasulu, K. Kavya, Sarat K. Kotamraju","doi":"10.1109/SPACES.2015.7058253","DOIUrl":"https://doi.org/10.1109/SPACES.2015.7058253","url":null,"abstract":"In this paper, the feasibility of an 8-way unequal amplitude equal phase power splitter using a conventional microstrip technology in the 430MHz UHF band is proposed for Tropospheric wind profiling radar. Feeder network with unequal amplitude is designed based on the side lobe level requirement -17db down from the main beam. The theoretical design and simulated results are presented to verify our proposed design. The main advantage of this present design is to reduce the complexity in Transmit-Receive module.","PeriodicalId":432479,"journal":{"name":"2015 International Conference on Signal Processing and Communication Engineering Systems","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116356743","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 : 1900-01-01DOI: 10.1109/SPACES.2015.7058256
V. Janarthanan, P. Venkataramana, P. Bhargavi, M. Suresh, J. G. Krishna
Tracking performance of Radar is characterized by its Accuracy and maximum tracking range. Both of the parameters depend on the Signal to Noise Ratio (SNR) of the received signal. Improving the SNR of the received signal by using some signal processing techniques enhances the performance of the radar without any changes to the other subsystems of the Radar. There are various signal processing algorithms among which correlation and pulse integration are very popular and widely used. These algorithms should be implemented using suitable hardware to process the received signal in real time. The deadlines available for such processing are of the order one to two milli seconds. Therefore implementation of any signal-processing algorithm in real time is very critical and challenging. In this paper we propose design and implementation of an optimized correlation algorithm (correlator) with minimum computation time and hardware resources for a pulsed Continuous Wave (CW) radar using Field Programmable Gate Array (FPGA). Improvement in the radar tracking performance using this correlator is also presented.
{"title":"Optimized correlation algorithm for enhancing tracking performance in pulsed CW radar","authors":"V. Janarthanan, P. Venkataramana, P. Bhargavi, M. Suresh, J. G. Krishna","doi":"10.1109/SPACES.2015.7058256","DOIUrl":"https://doi.org/10.1109/SPACES.2015.7058256","url":null,"abstract":"Tracking performance of Radar is characterized by its Accuracy and maximum tracking range. Both of the parameters depend on the Signal to Noise Ratio (SNR) of the received signal. Improving the SNR of the received signal by using some signal processing techniques enhances the performance of the radar without any changes to the other subsystems of the Radar. There are various signal processing algorithms among which correlation and pulse integration are very popular and widely used. These algorithms should be implemented using suitable hardware to process the received signal in real time. The deadlines available for such processing are of the order one to two milli seconds. Therefore implementation of any signal-processing algorithm in real time is very critical and challenging. In this paper we propose design and implementation of an optimized correlation algorithm (correlator) with minimum computation time and hardware resources for a pulsed Continuous Wave (CW) radar using Field Programmable Gate Array (FPGA). Improvement in the radar tracking performance using this correlator is also presented.","PeriodicalId":432479,"journal":{"name":"2015 International Conference on Signal Processing and Communication Engineering Systems","volume":"154 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132170748","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 : 1900-01-01DOI: 10.1109/SPACES.2015.7058276
M. S. Prakash, R. Shaik
A Distributed Arithmetic (DA) based scheme for the implementation of Sign-LMS adaptive filter is presented. DA is an efficient technique for the computation of the dot product of two vectors. This is done by storing the pre-computed partial-products in memories which are then shift-accumulated for the computation of the output. DA can be used for the realization of the finite impulse response (FIR) filters, however, for the realization of the adaptive filters, the partial-products have to be updated from time to time. This is achieved by using a memory which stores the partial-products of the set of recent input samples. The proposed scheme has a convergence performance similar to that of the multiply-and-accumulate (MAC) based implementation. Results show that the throughput of the DA based implementation is better than the MAC based implementation. Further, it is observed that the throughput is almost a constant with respect to the filter order which makes it more suitable for implementing large filters.
{"title":"A distributed arithmetic based approach for the implementation of the Sign-LMS adaptive filter","authors":"M. S. Prakash, R. Shaik","doi":"10.1109/SPACES.2015.7058276","DOIUrl":"https://doi.org/10.1109/SPACES.2015.7058276","url":null,"abstract":"A Distributed Arithmetic (DA) based scheme for the implementation of Sign-LMS adaptive filter is presented. DA is an efficient technique for the computation of the dot product of two vectors. This is done by storing the pre-computed partial-products in memories which are then shift-accumulated for the computation of the output. DA can be used for the realization of the finite impulse response (FIR) filters, however, for the realization of the adaptive filters, the partial-products have to be updated from time to time. This is achieved by using a memory which stores the partial-products of the set of recent input samples. The proposed scheme has a convergence performance similar to that of the multiply-and-accumulate (MAC) based implementation. Results show that the throughput of the DA based implementation is better than the MAC based implementation. Further, it is observed that the throughput is almost a constant with respect to the filter order which makes it more suitable for implementing large filters.","PeriodicalId":432479,"journal":{"name":"2015 International Conference on Signal Processing and Communication Engineering Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130032383","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 : 1900-01-01DOI: 10.1109/SPACES.2015.7058258
Chethan Sharma, P. Sathish
In current era, most of the information is captured using multimedia techniques. Most used methods for information capturing is through images and videos. In processing a video, large information needs to be processed and a number of frames could contain similar information which could cause unnecessary delay in gathering the required information. Video summarization can speed up video processing. There are different techniques for video summarization. In this paper key frames are used for summarization. Key frames are extracted using discrete wavelet transforms. Two HD videos having 356 frames and 7293 frames were used as test videos and the runtime was 17 seconds and 98 seconds respectively in CPU and 11 seconds and 53 seconds respectively in GPU.
{"title":"Parallelizing keyframe extraction for video summarization","authors":"Chethan Sharma, P. Sathish","doi":"10.1109/SPACES.2015.7058258","DOIUrl":"https://doi.org/10.1109/SPACES.2015.7058258","url":null,"abstract":"In current era, most of the information is captured using multimedia techniques. Most used methods for information capturing is through images and videos. In processing a video, large information needs to be processed and a number of frames could contain similar information which could cause unnecessary delay in gathering the required information. Video summarization can speed up video processing. There are different techniques for video summarization. In this paper key frames are used for summarization. Key frames are extracted using discrete wavelet transforms. Two HD videos having 356 frames and 7293 frames were used as test videos and the runtime was 17 seconds and 98 seconds respectively in CPU and 11 seconds and 53 seconds respectively in GPU.","PeriodicalId":432479,"journal":{"name":"2015 International Conference on Signal Processing and Communication Engineering Systems","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134355194","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 : 1900-01-01DOI: 10.1109/SPACES.2015.7058225
Deepali Vyas, Yogesh Misra, H R Kamath
Implementation of Fuzzy Logic in sugar industry will provide a new method to overcome various problems and increase the overall efficiency of sugar industries. The fuzzification, rule base and defuzzification are the key elements of a fuzzy system. Apart from fuzzification and defining rule there are numerous ways of defuzzification. This paper deals with the analysis and a comparative study of different deffuzification methods used for a three input fuzzy controller. The fuzzy controller developed and simulated for different deffuzification method by using Fuzzy Tool Box provided by MATLAB version 7.7 (R2008b).
{"title":"Comparison and analysis of defuzzification methods of a fuzzy controller to maintain the cane level during cane juice extraction","authors":"Deepali Vyas, Yogesh Misra, H R Kamath","doi":"10.1109/SPACES.2015.7058225","DOIUrl":"https://doi.org/10.1109/SPACES.2015.7058225","url":null,"abstract":"Implementation of Fuzzy Logic in sugar industry will provide a new method to overcome various problems and increase the overall efficiency of sugar industries. The fuzzification, rule base and defuzzification are the key elements of a fuzzy system. Apart from fuzzification and defining rule there are numerous ways of defuzzification. This paper deals with the analysis and a comparative study of different deffuzification methods used for a three input fuzzy controller. The fuzzy controller developed and simulated for different deffuzification method by using Fuzzy Tool Box provided by MATLAB version 7.7 (R2008b).","PeriodicalId":432479,"journal":{"name":"2015 International Conference on Signal Processing and Communication Engineering Systems","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133244883","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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