Researcher Profile > College of International Management> KHAN Muhammad Tahir Abbas
College of International Management

Professor

KHAN Muhammad Tahir Abbas
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Papers Number of the published data : 37
No. Title of presented paper Journal Publication date DOI
1 Segmentation of Lungs in HRCT Scan Images Using Particle Swarm Optimization International Journal of Innovative Computing, Information and Control 2013/05
Type of journal Academic Journal
Authorship Joint work
Title of presented paper Segmentation of Lungs in HRCT Scan Images Using Particle Swarm Optimization
Journal International Journal of Innovative Computing, Information and Control
Volume/issue/page 9/ 5, 2155-2165
Joint authors Qaisar Abbas, M. Tahir Abbas Khan, Amjad Farooq and M. Emre Celebi
ISSN 1349-4198
Summary
A novel segmentation algorithm for lungs based on high-resolution computed
tomography (HRCT) scan images is developed. This segmentation method is mainly de-
rived from particle swam optimization (PSO) technique to select an appropriate threshold
level for pixels-probability density function (P-PDF) that integrates morphological edge-
detection technique to re ne segmentation. A multi-level thresholding technique was pro-
posed for CT slice segmentation by developing new control tness function. After that
morphological functions are utilized to get enhanced delineation of lungs from HRCT scan
images. For computer-aided diagnostics (CADe) of lungs, this algorithm can be used as
an initial step to improve the diagnostic performance of radiologists with an increase
in sensitivity and decrease in false-positive (FP) rate. The system was tested on 120
HRCT scan images. This automatic thresholding method was compared with the other
state-of-the-art techniques based on ground truth obtained from an expert radiologist. The
experimental results indicate that the proposed method provides an effective segmentation
solution with small errors, independent of CT scanners and independent from patient's
low or high dose.
 
2 Frequency and Power Estimator for Digital Receivers in Doppler shift Environment Signal Processing: An international journal (SPIJ) 2011/12
Type of journal Academic Journal
Authorship Joint work
Title of presented paper Frequency and Power Estimator for Digital Receivers in Doppler shift Environment
Journal Signal Processing: An international journal (SPIJ)
Volume/issue/page 5/ 5, 192-208
Joint authors M. Saber, Y. Jitsumatsu
ISSN
Summary
 
3 A low power digital phase locked loop with Rom-free numerically controlled oscillator Signal Processing: An international journal (SPIJ) 2011/10
Type of journal Academic Journal
Authorship Joint work
Title of presented paper A low power digital phase locked loop with Rom-free numerically controlled oscillator
Journal Signal Processing: An international journal (SPIJ)
Volume/issue/page 5/ 4, 142-155
Joint authors M. Saber, Y. Jitsumatsu
ISSN
Summary
An improved digital phase locked loop structure is porposed in this paper.
 
4 Design and Implementation of Low Ripple Low Power Digital Phase-Locked Loop Signal Processing: An International Journal (SPIJ) 2011/02
Type of journal Academic Journal
Authorship Joint work
Title of presented paper Design and Implementation of Low Ripple Low Power Digital Phase-Locked Loop
Journal Signal Processing: An International Journal (SPIJ)
Volume/issue/page 4/ 6, 304 - 317
Joint authors M. Saber, Y. Jitsumatsu
ISSN 1985-2339
Summary
 
5 Clear P-Wave Arrival of Weak Events and Automatic Onset Determination Using Wavelet Filter Banks Elsevier Journal on Digital Signal Processing 2010/05 10.1016/j.dsp.2009.10.002
Type of journal Academic Journal
Authorship Joint work
Title of presented paper Clear P-Wave Arrival of Weak Events and Automatic Onset Determination Using Wavelet Filter Banks
Journal Elsevier Journal on Digital Signal Processing
Volume/issue/page 20/ 3, 715-723
Joint authors A. G. Hafez, T. Kohda,
ISSN
Summary
P-wave arrivals of many weak events cannot be precisely determined manually. Difference in power levels between noise and P-wave in wavelet detail of weak events enables us to determine P-wave arrival manually. Because of this power difference, automatic onset detection and picking algorithm is introduced using the same wavelet detail. Parameter settings are not needed as algorithm will work on data generated by either short or very broad band seismometers. Application of the proposed algorithm on data of three stations of Egyptian National Seismic Network (ENSN) in Cairo region shows a maximum standard deviation of 0.14 seconds of the corresponding manual picks.
 
6 Detecting Micro-Seisms and Local Earthquake P-Wave arrival using Haar Wavelet Journal of the National Research Institute Of Astronomy & Geophysics (NRIAG) 2009/04
Type of journal Academic Journal
Authorship Joint work
Title of presented paper Detecting Micro-Seisms and Local Earthquake P-Wave arrival using Haar Wavelet
Journal Journal of the National Research Institute Of Astronomy & Geophysics (NRIAG)
Volume/issue/page Accepted for publication on Dec. 21, 2008
Joint authors KHAN M. T. A., A. G. Hafez, T. Kohda
ISSN
Summary
 
7 Earthquake Onset Detection using Spectro-Ratio on Multi-Threshold Time-Frequency Sub-Band Elsevier Journal on Digital Signal Processing 2009/01
Type of journal
Authorship Joint work
Title of presented paper Earthquake Onset Detection using Spectro-Ratio on Multi-Threshold Time-Frequency Sub-Band
Journal Elsevier Journal on Digital Signal Processing
Volume/issue/page 19/ 1, 118-126
Joint authors
ISSN
Summary
 
8 Frequency Estimator Using Newton's Method The 1st International Symposium on Innovative Mathematical Modelling, Tokyo, Japan 2011/03
Type of journal Other
Authorship Joint work
Title of presented paper Frequency Estimator Using Newton's Method
Journal The 1st International Symposium on Innovative Mathematical Modelling, Tokyo, Japan
Volume/issue/page
Joint authors
ISSN
Summary
 
9 Low Noise Low Power Digital Phase-Locked Loop IEEE TENCON 2010, Fukuoka, Japan 2010/11
Type of journal Other
Authorship Joint work
Title of presented paper Low Noise Low Power Digital Phase-Locked Loop
Journal IEEE TENCON 2010, Fukuoka, Japan
Volume/issue/page
Joint authors M. Saber, Y. Jitsumatsu and KHAN M. T. A.
ISSN
Summary
 
10 Design and Implementation of Low Power Digital Phase-Locked Loop 2010 IEEE International Symposium on Information Theory and its Applications (ISITA) & 2010 IEEE International Symposium on Spread Spectrum Techniques and Applications (ISSSTA), Taichung, Taiwan 2010/10
Type of journal Other
Authorship Joint work
Title of presented paper Design and Implementation of Low Power Digital Phase-Locked Loop
Journal 2010 IEEE International Symposium on Information Theory and its Applications (ISITA) & 2010 IEEE International Symposium on Spread Spectrum Techniques and Applications (ISSSTA), Taichung, Taiwan
Volume/issue/page
Joint authors M. Saber, Y. Jitsumatsu
ISSN
Summary
 
11 Frequency Estimator using Newton's Method 2010 IEEE International Symposium on Information Theory and its Applications (ISITA) & 2010 IEEE International Symposium on Spread Spectrum Techniques and Applications (ISSSTA), Taichung, Taiwan 2010/10
Type of journal Other
Authorship Joint work
Title of presented paper Frequency Estimator using Newton's Method
Journal 2010 IEEE International Symposium on Information Theory and its Applications (ISITA) & 2010 IEEE International Symposium on Spread Spectrum Techniques and Applications (ISSSTA), Taichung, Taiwan
Volume/issue/page
Joint authors T. Kohda, K. Ogiwara and K. Aihara
ISSN
Summary
 
12 Initial Synchronization of Spreading Sequences in DS/CDMA System he 8th WSEAS International Conference on applied electromagnetics, wireless and optical communications (ELECTRO'10) 2010/03
Type of journal Other
Authorship Joint work
Title of presented paper Initial Synchronization of Spreading Sequences in DS/CDMA System
Journal he 8th WSEAS International Conference on applied electromagnetics, wireless and optical communications (ELECTRO'10)
Volume/issue/page
Joint authors S.N. Jehan
ISSN
Summary
 
13 Design Implications for Believable and Engaging Scenarios 12th IEEE, International Multi-topic Conference (INMIC) 2008/12
Type of journal
Authorship Joint work
Title of presented paper Design Implications for Believable and Engaging Scenarios
Journal 12th IEEE, International Multi-topic Conference (INMIC)
Volume/issue/page 581-586
Joint authors
ISSN
Summary
 
14 Clear P-Wave Arrival of Weak Events and Automatic Onset Determination Using Wavelet Filter Banks 27th European Center for Geodynamics and Seismology Workshop, EUROSEIS, Luxembourg 2008/11
Type of journal
Authorship Joint work
Title of presented paper Clear P-Wave Arrival of Weak Events and Automatic Onset Determination Using Wavelet Filter Banks
Journal 27th European Center for Geodynamics and Seismology Workshop, EUROSEIS, Luxembourg
Volume/issue/page
Joint authors
ISSN
Summary
 
15 Balancing Fabula & Interactivity: An Approach to VR Drama IEEE Conference on emerging technologies (ICET) 2008/10
Type of journal
Authorship Joint work
Title of presented paper Balancing Fabula & Interactivity: An Approach to VR Drama
Journal IEEE Conference on emerging technologies (ICET)
Volume/issue/page 321-326
Joint authors
ISSN
Summary
 
16 Clear P-wave arrival of weak events and Automatic onset determination using wavelet filter banks JCEEE Kyushu 2008/09
Type of journal
Authorship Joint work
Title of presented paper Clear P-wave arrival of weak events and Automatic onset determination using wavelet filter banks
Journal JCEEE Kyushu
Volume/issue/page
Joint authors
ISSN
Summary
 
17 Virtual Reality in Tackling Ijime Problem IEICE ET 2008, Fukushima, Japan 2008/07
Type of journal
Authorship Joint work
Title of presented paper Virtual Reality in Tackling Ijime Problem
Journal IEICE ET 2008, Fukushima, Japan
Volume/issue/page 7, 57-62
Joint authors
ISSN
Summary
 
18 Finamatics & Innovation in Product Development Designs Of Technology Companies RCAPS Journal 2008/03
Type of journal Bulletin of Universities and Institutes
Authorship Joint work
Title of presented paper Finamatics & Innovation in Product Development Designs
Of Technology Companies
Journal RCAPS Journal
Volume/issue/page 24, 47-57
Joint authors
ISSN
Summary
 
19 Earthquake Onset Detection using Spectro-Ratio on Multi-Threshold Time-Frequency Sub-Band IEICE Tech. Report, NLP2007-106 2007/11
Type of journal
Authorship Joint work
Title of presented paper Earthquake Onset Detection using Spectro-Ratio on Multi-Threshold Time-Frequency Sub-Band
Journal IEICE Tech. Report, NLP2007-106
Volume/issue/page 107/ 349, 61-64
Joint authors
ISSN
Summary
 
20 Spectro-ratio on multi-threshold time-frequency sub-band for P-Wave arrival detection The 15th IEEE International Workshop on Nonlinear Dynamics of Electronic Systems (NDES'07) 2007/07
Type of journal
Authorship Joint work
Title of presented paper Spectro-ratio on multi-threshold time-frequency sub-band for P-Wave arrival detection
Journal The 15th IEEE International Workshop on Nonlinear Dynamics of Electronic Systems (NDES'07)
Volume/issue/page
Joint authors
ISSN
Summary
 
21 Gaussian Chip Waveform Together with Markovian Spreading Codes Improve BER Performance in Chip-Asynchronous... 49th Annual IEEE GLOBECOM, San Francisco, USA 2006/11
Type of journal
Authorship Joint work
Title of presented paper Gaussian Chip Waveform Together with Markovian Spreading Codes Improve BER Performance in Chip-Asynchronous CDMA Systems
Journal 49th Annual IEEE GLOBECOM, San Francisco, USA
Volume/issue/page CTH12-3, 1-5
Joint authors
ISSN
Summary
 
22 Introducing ISI can lead to reduction in BER of chip-asynchronous DS/CDMA systems The 9-th International Symposium on Wireless Personal Multimedia Communications (WPMC), San Diego, USA 2006/09
Type of journal
Authorship Joint work
Title of presented paper Introducing ISI can lead to reduction in BER of chip-asynchronous DS/CDMA systems
Journal The 9-th International Symposium on Wireless Personal Multimedia Communications (WPMC), San Diego, USA
Volume/issue/page
Joint authors
ISSN
Summary
 
23 Cross Correlation Matrices for Multiuser Chip-Asynchronous DS/CDMA Systems IEICE Joint Conference on Information Theory, Information Security and Wideband Systems, Nagoya, Japan 2006/03
Type of journal
Authorship Joint work
Title of presented paper Cross Correlation Matrices for Multiuser Chip-Asynchronous DS/CDMA Systems
Journal IEICE Joint Conference on Information Theory, Information Security and Wideband Systems, Nagoya, Japan
Volume/issue/page 159-165
Joint authors
ISSN
Summary
 
24 Variance of Average Interference Parameter for LFSR and Random Markov Codes 28th Symposium on Information Theory and its Applications (SITA2005), Okinawa, Japan 2005/11
Type of journal
Authorship Joint work
Title of presented paper Variance of Average Interference Parameter for LFSR and Random Markov Codes
Journal 28th Symposium on Information Theory and its Applications (SITA2005), Okinawa, Japan
Volume/issue/page 629-633
Joint authors
ISSN
Summary
 
25 MAP Code Acquisition Shows Superiority of Bologna Codes in a Class of Multiuser CDMA Systems 2005 International Symposium on Non-Linear Theory and its Applications (NOLTA 2005), Bruges, Belgium 2005/10
Type of journal
Authorship First
Title of presented paper MAP Code Acquisition Shows Superiority of Bologna Codes in a Class of Multiuser CDMA Systems
Journal 2005 International Symposium on Non-Linear Theory and its Applications (NOLTA 2005), Bruges, Belgium
Volume/issue/page 94-97
Joint authors
ISSN
Summary
 
26 Maximum a posteriori Probability (MAP) Code Acquisition in Multiuser DS/CDMA Systems 2005 Asia Pacific Conference on Communications (APCC), Perth, Australia 2005/10
Type of journal
Authorship First
Title of presented paper Maximum a posteriori Probability (MAP) Code Acquisition in Multiuser DS/CDMA Systems
Journal 2005 Asia Pacific Conference on Communications (APCC), Perth, Australia
Volume/issue/page 654-658
Joint authors
ISSN
Summary
 
27 Code Acquisition in DS/CDMA Systems by Employing a Detector Based on a posteriori Probability... IEICE Transactions on Communications 2005/10
Type of journal Academic Journal
Authorship First
Title of presented paper Code Acquisition in DS/CDMA Systems by Employing a Detector Based on a posteriori Probability Calculation
Journal IEICE Transactions on Communications
Volume/issue/page E88-B/ 10, 4047-4055
Joint authors
ISSN
Summary
 
28 Code Acquisition in Multiuser Chip-Asynchronous DS/CDMA Systems The 7th CNU/KU Joint Symp., Daejeon, South Korea 2005/09
Type of journal
Authorship First
Title of presented paper Code Acquisition in Multiuser Chip-Asynchronous DS/CDMA Systems
Journal The 7th CNU/KU Joint Symp., Daejeon, South Korea
Volume/issue/page 2-5
Joint authors
ISSN
Summary
 
29 A Novel Code Acquisition Algorithm and its Application to Markov Spreading Codes 2005 IEEE International Symposium on Circuits and Systems (ISCAS), Kobe, Japan 2005/05
Type of journal
Authorship First
Title of presented paper A Novel Code Acquisition Algorithm and its Application to Markov Spreading Codes
Journal 2005 IEEE International Symposium on Circuits and Systems (ISCAS), Kobe, Japan
Volume/issue/page 2056-2059
Joint authors
ISSN
Summary
 
30 Code Acquisition in Asynchronous DS/CDMA Systems IEICE Joint Conference on Information Theory, Information Security and Wideband Systems, Kyoto, Japan 2005/03
Type of journal
Authorship First
Title of presented paper Code Acquisition in Asynchronous DS/CDMA Systems
Journal IEICE Joint Conference on Information Theory, Information Security and Wideband Systems, Kyoto, Japan
Volume/issue/page
Joint authors
ISSN
Summary
 
31 Code Acquisition in Asynchronous DS/CDMA Systems, Markov and i.i.d. Codes in Multiuser Scenario 2004 International Symposium on Non-Linear Theory and its Applications (NOLTA 2004), Fukuoka, Japan 2004/12
Type of journal
Authorship First
Title of presented paper Code Acquisition in Asynchronous DS/CDMA Systems, Markov and i.i.d. Codes in Multiuser Scenario
Journal 2004 International Symposium on Non-Linear Theory and its Applications (NOLTA 2004), Fukuoka, Japan
Volume/issue/page
Joint authors
ISSN
Summary
 
32 Reduction of MAI in Asynchronous DS/CDMA Systems Using Post-Filterin IEICE Transactions on Fundamentals 2004/09
Type of journal Academic Journal
Authorship Joint work
Title of presented paper Reduction of MAI in Asynchronous DS/CDMA Systems Using Post-Filterin
Journal IEICE Transactions on Fundamentals
Volume/issue/page E87-A/ 9, 2301-2307
Joint authors
ISSN
Summary
 
33 Bit Error Rates of Information and Watermark Bits in Digital Watermarking Systems Based on SS Techniques 2004 IEEE International Symposium on Spread Spectrum Techniques and Applications (2004 ISSSTA), Sydney, Australia 2004/08
Type of journal
Authorship Joint work
Title of presented paper Bit Error Rates of Information and Watermark Bits in Digital Watermarking Systems Based on SS Techniques
Journal 2004 IEEE International Symposium on Spread Spectrum Techniques and Applications (2004 ISSSTA), Sydney, Australia
Volume/issue/page
Joint authors
ISSN
Summary
 
34 An a posteriori Probability Threshold Rule for Multiuser Code Acquisition in DS/CDMA Systems:... IEEE 59th Vehicular Technology Conference (VTC), Milan, Italy 2004/05
Type of journal
Authorship First
Title of presented paper An a posteriori Probability Threshold Rule for Multiuser Code Acquisition in DS/CDMA Systems: Theoretical and Approximate Methods
Journal IEEE 59th Vehicular Technology Conference (VTC), Milan, Italy
Volume/issue/page
Joint authors
ISSN
Summary
 
35 Multiuser Code Acquisition in DS/CDMA Systems 2003 IEEE Topical Conference on Wireless Communications Technology, Hawaii, USA 2003/10
Type of journal
Authorship First
Title of presented paper Multiuser Code Acquisition in DS/CDMA Systems
Journal 2003 IEEE Topical Conference on Wireless Communications Technology, Hawaii, USA
Volume/issue/page
Joint authors
ISSN
Summary
 
36 Spread Spectrum Markovian-Code Acquisition in Asynchronous DS/CDMA Systems 2003 IEEE International Symposium on Circuits and Systems (ISCAS), Bangkok, Thailand 2003/05
Type of journal
Authorship Joint work
Title of presented paper Spread Spectrum Markovian-Code Acquisition in Asynchronous DS/CDMA Systems
Journal 2003 IEEE International Symposium on Circuits and Systems (ISCAS), Bangkok, Thailand
Volume/issue/page
Joint authors
ISSN
Summary
 
37 Short Term Load Forecasting for an Inter-Connected Power System IEEE National Multi Topic Conference (INMIC 2000), Islamabad, Pakistan 2000/09
Type of journal
Authorship Corresponding author
Title of presented paper Short Term Load Forecasting for an Inter-Connected Power System
Journal IEEE National Multi Topic Conference (INMIC 2000), Islamabad, Pakistan
Volume/issue/page
Joint authors
ISSN
Summary