An efficient static gesture recognizer embedded system based on ELM pattern recognition algorithm
•The proposed embedded system supports real time recognition of alphabetic symbols from images of static hands gesture.•Each image is captured and converted into a binary image, which is divided in grids for calculating the percentage of white pixels. This image feature is input for a Extreme Learni...
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Published in | Journal of systems architecture Vol. 68; pp. 1 - 16 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Amsterdam
Elsevier B.V
01.08.2016
Elsevier Sequoia S.A |
Subjects | |
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Abstract | •The proposed embedded system supports real time recognition of alphabetic symbols from images of static hands gesture.•Each image is captured and converted into a binary image, which is divided in grids for calculating the percentage of white pixels. This image feature is input for a Extreme Learning Machine (ELM) neural network that recognizes the symbol.•For improving the recognition process, a checker unit confirms the recognized symbol for a set of images captured.•Through a hardware implementation that explores parallelism of operations and pipelining, it was possible to ensure that the system is able to identify symbols without loss of video frames during recognition.
Millions of people throughout the world describe themselves as being deaf. Some of them suffer from severe hearing loss and consequently use an alternative manner with which to communicate with society by means of either written or visual language. There are several sign languages capable of dealing with such a need. Nonetheless, a communication gap still exists even when using such languages, since only a small fraction of the population is able to use them. Over the last few years, due to the increasing need for universal accessibility when using computational resources, gesture recognition has been widely researched. Thus, in an attempt to reduce this communication gap, our approach proposes a computational solution in order to translate static gesture symbols into text symbols, through computer vision, without the use of hand sensors or gloves. In order to guarantee the highest quality, with emphasis on the reliability of the system and real-time translation, we have developed an approach based on the Extreme Learning Machine (ELM) pattern recognition algorithms fully implemented in hardware, and have assessed it to measure these two metrics. Hardware components were designed in order to perform the best image processing and pattern recognition tasks used within the project. As a case study, and so as to validate the technique, a recognition system for the Brazilian Sign Language (LIBRAS) was implemented. Besides ensuring that this approach could be used for any static hand gesture symbol recognition, our main goal was to guarantee fast, reliable gesture recognition for communication between humans. Experimental results have demonstrated that the system is able to recognize LIBRAS symbols with an accuracy of 97%, a response time of 6.5ms per letter recognition, and using only 43% (about 64,851 logic elements) of the FPGA area. |
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AbstractList | Millions of people throughout the world describe themselves as being deaf. Some of them suffer from severe hearing loss and consequently use an alternative manner with which to communicate with society by means of either written or visual language. Nonetheless, a communication gap still exists even when using such languages, since only a small fraction of the population is able to use them. Thus, in an attempt to reduce this communication gap, the authors' approach proposes a computational solution in order to translate static gesture symbols into text symbols, through computer vision, without the use of hand sensors or gloves. In order to guarantee the highest quality, with emphasis on the reliability of the system and real-time translation, we have developed an approach based on the Extreme Learning Machine pattern recognition algorithms fully implemented in hardware, and have assessed it to measure these two metrics. As a case study, and so as to validate the technique, a recognition system for the Brazilian Sign Language was implemented. Millions of people throughout the world describe themselves as being deaf. Some of them suffer from severe hearing loss and consequently use an alternative manner with which to communicate with society by means of either written or visual language. There are several sign languages capable of dealing with such a need. Nonetheless, a communication gap still exists even when using such languages, since only a small fraction of the population is able to use them. Over the last few years, due to the increasing need for universal accessibility when using computational resources, gesture recognition has been widely researched. Thus, in an attempt to reduce this communication gap, our approach proposes a computational solution in order to translate static gesture symbols into text symbols, through computer vision, without the use of hand sensors or gloves. In order to guarantee the highest quality, with emphasis on the reliability of the system and real-time translation, we have developed an approach based on the Extreme Learning Machine (ELM) pattern recognition algorithms fully implemented in hardware, and have assessed it to measure these two metrics. Hardware components were designed in order to perform the best image processing and pattern recognition tasks used within the project. As a case study, and so as to validate the technique, a recognition system for the Brazilian Sign Language (LIBRAS) was implemented. Besides ensuring that this approach could be used for any static hand gesture symbol recognition, our main goal was to guarantee fast, reliable gesture recognition for communication between humans. Experimental results have demonstrated that the system is able to recognize LIBRAS symbols with an accuracy of 97%, a response time of 6.5ms per letter recognition, and using only 43% (about 64,851 logic elements) of the FPGA area. •The proposed embedded system supports real time recognition of alphabetic symbols from images of static hands gesture.•Each image is captured and converted into a binary image, which is divided in grids for calculating the percentage of white pixels. This image feature is input for a Extreme Learning Machine (ELM) neural network that recognizes the symbol.•For improving the recognition process, a checker unit confirms the recognized symbol for a set of images captured.•Through a hardware implementation that explores parallelism of operations and pipelining, it was possible to ensure that the system is able to identify symbols without loss of video frames during recognition. Millions of people throughout the world describe themselves as being deaf. Some of them suffer from severe hearing loss and consequently use an alternative manner with which to communicate with society by means of either written or visual language. There are several sign languages capable of dealing with such a need. Nonetheless, a communication gap still exists even when using such languages, since only a small fraction of the population is able to use them. Over the last few years, due to the increasing need for universal accessibility when using computational resources, gesture recognition has been widely researched. Thus, in an attempt to reduce this communication gap, our approach proposes a computational solution in order to translate static gesture symbols into text symbols, through computer vision, without the use of hand sensors or gloves. In order to guarantee the highest quality, with emphasis on the reliability of the system and real-time translation, we have developed an approach based on the Extreme Learning Machine (ELM) pattern recognition algorithms fully implemented in hardware, and have assessed it to measure these two metrics. Hardware components were designed in order to perform the best image processing and pattern recognition tasks used within the project. As a case study, and so as to validate the technique, a recognition system for the Brazilian Sign Language (LIBRAS) was implemented. Besides ensuring that this approach could be used for any static hand gesture symbol recognition, our main goal was to guarantee fast, reliable gesture recognition for communication between humans. Experimental results have demonstrated that the system is able to recognize LIBRAS symbols with an accuracy of 97%, a response time of 6.5ms per letter recognition, and using only 43% (about 64,851 logic elements) of the FPGA area. |
Author | Neto, Fernando M.P. Barros, Edna Zanchettin, Cleber Macieira, Rafael M. Cambuim, Lucas F.S. Ludermir, Teresa B. |
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Cites_doi | 10.1007/s13042-011-0019-y 10.1016/j.neucom.2005.12.126 10.1109/TPAMI.1982.4767309 10.1109/TPAMI.1986.4767851 |
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Snippet | •The proposed embedded system supports real time recognition of alphabetic symbols from images of static hands gesture.•Each image is captured and converted... Millions of people throughout the world describe themselves as being deaf. Some of them suffer from severe hearing loss and consequently use an alternative... |
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SubjectTerms | Algorithms Computation Computer vision Deafness Embedded systems FPGA Hardware Logic Neural network Neural networks Nonverbal communication Pattern recognition Pattern recognition systems Recognition Sign language Studies Symbols |
Title | An efficient static gesture recognizer embedded system based on ELM pattern recognition algorithm |
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