The Experts below are selected from a list of 249 Experts worldwide ranked by ideXlab platform
Won Il Park - One of the best experts on this subject based on the ideXlab platform.
-
Comparison of Safety Level between Driver’s Ages by Threshold Zone Luminance Level of Vehicular Traffic Tunnel
Journal of the Korean Society of Road Engineers, 2015Co-Authors: Won-bum Cho, Jun Hwa Jeong, Gyeong Kim, Won Il ParkAbstract:PURPOSES : The purpose of this study is to suggest a basis for setting appropriate safety goals specifically related to the threshold zone Luminance in a vehicular traffic tunnel. METHODS : In the test, drivers were divided into two groups. One group consisted of all drivers (average drivers) group with an age ratio of drivers holding domestic driver`s license and driver group by age to produce threshold zone Luminance in the tunnel. The threshold zone Luminance produced as a result was used to analyze how it affects the safety Level of each driver group and provide a basis for setting an appropriate safety criterion that can be used to determine threshold zone Luminance. We used test equipment, test conditions, and ananalysis of threshold zone Luminance identical to that reported by ChoandJung(2014) but the values of adaptation Luminance in our analys is were expanded to range from100 to . RESULTS : Adaptation Luminance and threshold zone Luminance are found to be related by a quadratic function. The threshold zone Luminance needed by older drivers to ensure a certain safety Level is significantly higher than that for drivers of other age brackets when adaptation Luminance increases. 56% of older drivers are at an increased risk of an accident at the same Luminance for which the safety Level of average drivers is 75%. The safety Level that can be achieved for older drivers increases to above 60% when threshold zone Luminance Level is set with the goal of attaining a safety Level of more than 85% for average drivers. The safety Level that can be attained for average drivers is above 90% when the threshold zone Luminance is high enough to ensure over 75% in the safety Level of older drivers. Results of this study are applicable to highways and others whose designed speed is 100 km/h. CONCLUSIONS : Threshold zone Luminance determined on the basis of drivers having average visual ability is of limited value as a performance standard for ensuring the safety of older drivers. Hence, safety Level for older drivers should be considered separately from safety Levels for drivers with an average ability to avoid risk. Upward adjustment of older drivers` safety Level in the process of determining appropriate threshold zone Luminance in a vehicular traffic tunnel may bring both tangible and intangible benefit as a result of reducing accidents. However, there is an associated dollar cost arising from installing and operating lights. As a result, the economic impact of these trade-offs should also be considered.
-
comparison of safety Level between driver s ages by threshold zone Luminance Level of vehicular traffic tunnel
Journal of the Korean Society of Road Engineers, 2015Co-Authors: Won-bum Cho, Jun Hwa Jeong, Do Gyeong Kim, Won Il ParkAbstract:PURPOSES : The purpose of this study is to suggest a basis for setting appropriate safety goals specifically related to the threshold zone Luminance in a vehicular traffic tunnel. METHODS : In the test, drivers were divided into two groups. One group consisted of all drivers (average drivers) group with an age ratio of drivers holding domestic driver`s license and driver group by age to produce threshold zone Luminance in the tunnel. The threshold zone Luminance produced as a result was used to analyze how it affects the safety Level of each driver group and provide a basis for setting an appropriate safety criterion that can be used to determine threshold zone Luminance. We used test equipment, test conditions, and ananalysis of threshold zone Luminance identical to that reported by ChoandJung(2014) but the values of adaptation Luminance in our analys is were expanded to range from100 to . RESULTS : Adaptation Luminance and threshold zone Luminance are found to be related by a quadratic function. The threshold zone Luminance needed by older drivers to ensure a certain safety Level is significantly higher than that for drivers of other age brackets when adaptation Luminance increases. 56% of older drivers are at an increased risk of an accident at the same Luminance for which the safety Level of average drivers is 75%. The safety Level that can be achieved for older drivers increases to above 60% when threshold zone Luminance Level is set with the goal of attaining a safety Level of more than 85% for average drivers. The safety Level that can be attained for average drivers is above 90% when the threshold zone Luminance is high enough to ensure over 75% in the safety Level of older drivers. Results of this study are applicable to highways and others whose designed speed is 100 km/h. CONCLUSIONS : Threshold zone Luminance determined on the basis of drivers having average visual ability is of limited value as a performance standard for ensuring the safety of older drivers. Hence, safety Level for older drivers should be considered separately from safety Levels for drivers with an average ability to avoid risk. Upward adjustment of older drivers` safety Level in the process of determining appropriate threshold zone Luminance in a vehicular traffic tunnel may bring both tangible and intangible benefit as a result of reducing accidents. However, there is an associated dollar cost arising from installing and operating lights. As a result, the economic impact of these trade-offs should also be considered.
Won-bum Cho - One of the best experts on this subject based on the ideXlab platform.
-
Comparison of Safety Level between Driver’s Ages by Threshold Zone Luminance Level of Vehicular Traffic Tunnel
Journal of the Korean Society of Road Engineers, 2015Co-Authors: Won-bum Cho, Jun Hwa Jeong, Gyeong Kim, Won Il ParkAbstract:PURPOSES : The purpose of this study is to suggest a basis for setting appropriate safety goals specifically related to the threshold zone Luminance in a vehicular traffic tunnel. METHODS : In the test, drivers were divided into two groups. One group consisted of all drivers (average drivers) group with an age ratio of drivers holding domestic driver`s license and driver group by age to produce threshold zone Luminance in the tunnel. The threshold zone Luminance produced as a result was used to analyze how it affects the safety Level of each driver group and provide a basis for setting an appropriate safety criterion that can be used to determine threshold zone Luminance. We used test equipment, test conditions, and ananalysis of threshold zone Luminance identical to that reported by ChoandJung(2014) but the values of adaptation Luminance in our analys is were expanded to range from100 to . RESULTS : Adaptation Luminance and threshold zone Luminance are found to be related by a quadratic function. The threshold zone Luminance needed by older drivers to ensure a certain safety Level is significantly higher than that for drivers of other age brackets when adaptation Luminance increases. 56% of older drivers are at an increased risk of an accident at the same Luminance for which the safety Level of average drivers is 75%. The safety Level that can be achieved for older drivers increases to above 60% when threshold zone Luminance Level is set with the goal of attaining a safety Level of more than 85% for average drivers. The safety Level that can be attained for average drivers is above 90% when the threshold zone Luminance is high enough to ensure over 75% in the safety Level of older drivers. Results of this study are applicable to highways and others whose designed speed is 100 km/h. CONCLUSIONS : Threshold zone Luminance determined on the basis of drivers having average visual ability is of limited value as a performance standard for ensuring the safety of older drivers. Hence, safety Level for older drivers should be considered separately from safety Levels for drivers with an average ability to avoid risk. Upward adjustment of older drivers` safety Level in the process of determining appropriate threshold zone Luminance in a vehicular traffic tunnel may bring both tangible and intangible benefit as a result of reducing accidents. However, there is an associated dollar cost arising from installing and operating lights. As a result, the economic impact of these trade-offs should also be considered.
-
comparison of safety Level between driver s ages by threshold zone Luminance Level of vehicular traffic tunnel
Journal of the Korean Society of Road Engineers, 2015Co-Authors: Won-bum Cho, Jun Hwa Jeong, Do Gyeong Kim, Won Il ParkAbstract:PURPOSES : The purpose of this study is to suggest a basis for setting appropriate safety goals specifically related to the threshold zone Luminance in a vehicular traffic tunnel. METHODS : In the test, drivers were divided into two groups. One group consisted of all drivers (average drivers) group with an age ratio of drivers holding domestic driver`s license and driver group by age to produce threshold zone Luminance in the tunnel. The threshold zone Luminance produced as a result was used to analyze how it affects the safety Level of each driver group and provide a basis for setting an appropriate safety criterion that can be used to determine threshold zone Luminance. We used test equipment, test conditions, and ananalysis of threshold zone Luminance identical to that reported by ChoandJung(2014) but the values of adaptation Luminance in our analys is were expanded to range from100 to . RESULTS : Adaptation Luminance and threshold zone Luminance are found to be related by a quadratic function. The threshold zone Luminance needed by older drivers to ensure a certain safety Level is significantly higher than that for drivers of other age brackets when adaptation Luminance increases. 56% of older drivers are at an increased risk of an accident at the same Luminance for which the safety Level of average drivers is 75%. The safety Level that can be achieved for older drivers increases to above 60% when threshold zone Luminance Level is set with the goal of attaining a safety Level of more than 85% for average drivers. The safety Level that can be attained for average drivers is above 90% when the threshold zone Luminance is high enough to ensure over 75% in the safety Level of older drivers. Results of this study are applicable to highways and others whose designed speed is 100 km/h. CONCLUSIONS : Threshold zone Luminance determined on the basis of drivers having average visual ability is of limited value as a performance standard for ensuring the safety of older drivers. Hence, safety Level for older drivers should be considered separately from safety Levels for drivers with an average ability to avoid risk. Upward adjustment of older drivers` safety Level in the process of determining appropriate threshold zone Luminance in a vehicular traffic tunnel may bring both tangible and intangible benefit as a result of reducing accidents. However, there is an associated dollar cost arising from installing and operating lights. As a result, the economic impact of these trade-offs should also be considered.
Temel Kayikcioglu - One of the best experts on this subject based on the ideXlab platform.
-
observation of the effect of the increase in Luminance Level on emotional assessment in eeg records using welch method
Signal Processing and Communications Applications Conference, 2017Co-Authors: Kubra Eroglu, Pinar Kurt, Onur Osman, Temel KayikciogluAbstract:The aim of this study is to investigate the effect of the difference in Level of Luminance of visual stimuli on the emotional evaluation (negative, positive, neutral) from electroencephalogram (EEG) data recorded. EEG records of 31 healthy individuals were used in the study. These records were analyzed on the frequency domain using the Welch method and the features obtained after the analysis were evaluated statistically. According to the results of the evaluation, it was seen that there was a comparable difference between the reaction of individuals to the bright photographs with increased Luminance Level and the reaction of individuals to the original photographs, and it is revealed that this difference is spatially observed in which electrode region and in which frequency bands.
-
Investigation of the effect of Luminance Level on emotional evaluation by P300 waves observed in EEG records
2017 Medical Technologies National Congress (TIPTEKNO), 2017Co-Authors: Kubra Eroglu, Pinar Kurt, Temel Kayikcioglu, Onur OsmanAbstract:In this study, the effect of the Luminance Level on the emotional evaluation was investigated using P300 waves observed in electroencephalography (EEG) records. EEG records of 31 helathy individuals were used in this study. The power graphs of records were examined and statistical analysis of the features obtained these power values was performed. With the findings, it was tried to find out how the increase in Luminance Level reflects the EEG activity and the change in brain, which region, frequency and time interval.
-
SIU - Observation of the effect of the increase in Luminance Level on emotional assessment in EEG records using Welch method
2017 25th Signal Processing and Communications Applications Conference (SIU), 2017Co-Authors: Kubra Eroglu, Pinar Kurt, Onur Osman, Temel KayikciogluAbstract:The aim of this study is to investigate the effect of the difference in Level of Luminance of visual stimuli on the emotional evaluation (negative, positive, neutral) from electroencephalogram (EEG) data recorded. EEG records of 31 healthy individuals were used in the study. These records were analyzed on the frequency domain using the Welch method and the features obtained after the analysis were evaluated statistically. According to the results of the evaluation, it was seen that there was a comparable difference between the reaction of individuals to the bright photographs with increased Luminance Level and the reaction of individuals to the original photographs, and it is revealed that this difference is spatially observed in which electrode region and in which frequency bands.
-
investigation the effect of Luminance Level on the emotional assesment in eeg recordings using wavelet transform
Signal Processing and Communications Applications Conference, 2016Co-Authors: Kubra Eroglu, Pinar Kurt, Temel Kayikcioglu, Onur OsmanAbstract:The aim of this study is to investigate the impact of Luminance Level on the emotional evaluation from electroencefelography (EEG) data recorded. EEG recordings obtained from 13 healthy individuals were used in the study. Features were obtained from EEG recordings which obtained from 13 different people using discrete wavelet transform. 92.3% of different people' s features value in the feature vector obtained from EEG data base of neutral visual stimule in BRIGHT data group to be greater than the ORIGINAL data group were found. This study has an initial research on the issue. In the following study, the difference in Luminance Level which regions of the brain, frequency and time, it will try to determine what caused the change. The impact of the difference in the Luminance Level on the emotional evaluation in frequency, time and space plane will continue to be analyzed in more detail.
-
investigation the effect of Luminance Level on the image in eeg recordings using wigner ville distrubition
2016 Electric Electronics Computer Science Biomedical Engineerings' Meeting (EBBT), 2016Co-Authors: Kubra Eroglu, Pinar Kurt, Temel Kayikcioglu, Onur OsmanAbstract:The aim of this study is to investigate the relationship between the emotional evaluation and Luminance over the P300 compenent observed on EEG records. EEG recordings obtained from 13 healthy individuals were used in the study. Features were obtained using wigner ville distribution (WVD) of these records. According to ‘accuracy percentage’ performance results that the analysis of the obtained features, 92.3% of individual's values in the feature vector obtained from EEG data base of neutral visual stimule in BRIGHT data group to be greater than the ORIGINAL data group were found. The results of studies on the subject of electrophysiology is considered an important parameter that can include methods such as Luminance.
Onur Osman - One of the best experts on this subject based on the ideXlab platform.
-
observation of the effect of the increase in Luminance Level on emotional assessment in eeg records using welch method
Signal Processing and Communications Applications Conference, 2017Co-Authors: Kubra Eroglu, Pinar Kurt, Onur Osman, Temel KayikciogluAbstract:The aim of this study is to investigate the effect of the difference in Level of Luminance of visual stimuli on the emotional evaluation (negative, positive, neutral) from electroencephalogram (EEG) data recorded. EEG records of 31 healthy individuals were used in the study. These records were analyzed on the frequency domain using the Welch method and the features obtained after the analysis were evaluated statistically. According to the results of the evaluation, it was seen that there was a comparable difference between the reaction of individuals to the bright photographs with increased Luminance Level and the reaction of individuals to the original photographs, and it is revealed that this difference is spatially observed in which electrode region and in which frequency bands.
-
Investigation of the effect of Luminance Level on emotional evaluation by P300 waves observed in EEG records
2017 Medical Technologies National Congress (TIPTEKNO), 2017Co-Authors: Kubra Eroglu, Pinar Kurt, Temel Kayikcioglu, Onur OsmanAbstract:In this study, the effect of the Luminance Level on the emotional evaluation was investigated using P300 waves observed in electroencephalography (EEG) records. EEG records of 31 helathy individuals were used in this study. The power graphs of records were examined and statistical analysis of the features obtained these power values was performed. With the findings, it was tried to find out how the increase in Luminance Level reflects the EEG activity and the change in brain, which region, frequency and time interval.
-
SIU - Observation of the effect of the increase in Luminance Level on emotional assessment in EEG records using Welch method
2017 25th Signal Processing and Communications Applications Conference (SIU), 2017Co-Authors: Kubra Eroglu, Pinar Kurt, Onur Osman, Temel KayikciogluAbstract:The aim of this study is to investigate the effect of the difference in Level of Luminance of visual stimuli on the emotional evaluation (negative, positive, neutral) from electroencephalogram (EEG) data recorded. EEG records of 31 healthy individuals were used in the study. These records were analyzed on the frequency domain using the Welch method and the features obtained after the analysis were evaluated statistically. According to the results of the evaluation, it was seen that there was a comparable difference between the reaction of individuals to the bright photographs with increased Luminance Level and the reaction of individuals to the original photographs, and it is revealed that this difference is spatially observed in which electrode region and in which frequency bands.
-
investigation the effect of Luminance Level on the emotional assesment in eeg recordings using wavelet transform
Signal Processing and Communications Applications Conference, 2016Co-Authors: Kubra Eroglu, Pinar Kurt, Temel Kayikcioglu, Onur OsmanAbstract:The aim of this study is to investigate the impact of Luminance Level on the emotional evaluation from electroencefelography (EEG) data recorded. EEG recordings obtained from 13 healthy individuals were used in the study. Features were obtained from EEG recordings which obtained from 13 different people using discrete wavelet transform. 92.3% of different people' s features value in the feature vector obtained from EEG data base of neutral visual stimule in BRIGHT data group to be greater than the ORIGINAL data group were found. This study has an initial research on the issue. In the following study, the difference in Luminance Level which regions of the brain, frequency and time, it will try to determine what caused the change. The impact of the difference in the Luminance Level on the emotional evaluation in frequency, time and space plane will continue to be analyzed in more detail.
-
investigation the effect of Luminance Level on the image in eeg recordings using wigner ville distrubition
2016 Electric Electronics Computer Science Biomedical Engineerings' Meeting (EBBT), 2016Co-Authors: Kubra Eroglu, Pinar Kurt, Temel Kayikcioglu, Onur OsmanAbstract:The aim of this study is to investigate the relationship between the emotional evaluation and Luminance over the P300 compenent observed on EEG records. EEG recordings obtained from 13 healthy individuals were used in the study. Features were obtained using wigner ville distribution (WVD) of these records. According to ‘accuracy percentage’ performance results that the analysis of the obtained features, 92.3% of individual's values in the feature vector obtained from EEG data base of neutral visual stimule in BRIGHT data group to be greater than the ORIGINAL data group were found. The results of studies on the subject of electrophysiology is considered an important parameter that can include methods such as Luminance.
Kubra Eroglu - One of the best experts on this subject based on the ideXlab platform.
-
observation of the effect of the increase in Luminance Level on emotional assessment in eeg records using welch method
Signal Processing and Communications Applications Conference, 2017Co-Authors: Kubra Eroglu, Pinar Kurt, Onur Osman, Temel KayikciogluAbstract:The aim of this study is to investigate the effect of the difference in Level of Luminance of visual stimuli on the emotional evaluation (negative, positive, neutral) from electroencephalogram (EEG) data recorded. EEG records of 31 healthy individuals were used in the study. These records were analyzed on the frequency domain using the Welch method and the features obtained after the analysis were evaluated statistically. According to the results of the evaluation, it was seen that there was a comparable difference between the reaction of individuals to the bright photographs with increased Luminance Level and the reaction of individuals to the original photographs, and it is revealed that this difference is spatially observed in which electrode region and in which frequency bands.
-
Investigation of the effect of Luminance Level on emotional evaluation by P300 waves observed in EEG records
2017 Medical Technologies National Congress (TIPTEKNO), 2017Co-Authors: Kubra Eroglu, Pinar Kurt, Temel Kayikcioglu, Onur OsmanAbstract:In this study, the effect of the Luminance Level on the emotional evaluation was investigated using P300 waves observed in electroencephalography (EEG) records. EEG records of 31 helathy individuals were used in this study. The power graphs of records were examined and statistical analysis of the features obtained these power values was performed. With the findings, it was tried to find out how the increase in Luminance Level reflects the EEG activity and the change in brain, which region, frequency and time interval.
-
SIU - Observation of the effect of the increase in Luminance Level on emotional assessment in EEG records using Welch method
2017 25th Signal Processing and Communications Applications Conference (SIU), 2017Co-Authors: Kubra Eroglu, Pinar Kurt, Onur Osman, Temel KayikciogluAbstract:The aim of this study is to investigate the effect of the difference in Level of Luminance of visual stimuli on the emotional evaluation (negative, positive, neutral) from electroencephalogram (EEG) data recorded. EEG records of 31 healthy individuals were used in the study. These records were analyzed on the frequency domain using the Welch method and the features obtained after the analysis were evaluated statistically. According to the results of the evaluation, it was seen that there was a comparable difference between the reaction of individuals to the bright photographs with increased Luminance Level and the reaction of individuals to the original photographs, and it is revealed that this difference is spatially observed in which electrode region and in which frequency bands.
-
investigation the effect of Luminance Level on the emotional assesment in eeg recordings using wavelet transform
Signal Processing and Communications Applications Conference, 2016Co-Authors: Kubra Eroglu, Pinar Kurt, Temel Kayikcioglu, Onur OsmanAbstract:The aim of this study is to investigate the impact of Luminance Level on the emotional evaluation from electroencefelography (EEG) data recorded. EEG recordings obtained from 13 healthy individuals were used in the study. Features were obtained from EEG recordings which obtained from 13 different people using discrete wavelet transform. 92.3% of different people' s features value in the feature vector obtained from EEG data base of neutral visual stimule in BRIGHT data group to be greater than the ORIGINAL data group were found. This study has an initial research on the issue. In the following study, the difference in Luminance Level which regions of the brain, frequency and time, it will try to determine what caused the change. The impact of the difference in the Luminance Level on the emotional evaluation in frequency, time and space plane will continue to be analyzed in more detail.
-
investigation the effect of Luminance Level on the image in eeg recordings using wigner ville distrubition
2016 Electric Electronics Computer Science Biomedical Engineerings' Meeting (EBBT), 2016Co-Authors: Kubra Eroglu, Pinar Kurt, Temel Kayikcioglu, Onur OsmanAbstract:The aim of this study is to investigate the relationship between the emotional evaluation and Luminance over the P300 compenent observed on EEG records. EEG recordings obtained from 13 healthy individuals were used in the study. Features were obtained using wigner ville distribution (WVD) of these records. According to ‘accuracy percentage’ performance results that the analysis of the obtained features, 92.3% of individual's values in the feature vector obtained from EEG data base of neutral visual stimule in BRIGHT data group to be greater than the ORIGINAL data group were found. The results of studies on the subject of electrophysiology is considered an important parameter that can include methods such as Luminance.
