Ahmad Lutfi Amri Ramli

lutfi

Dr Ahmad Lutfi Amri Ramli

PhD Durham University
MSc Computational Mathematics with Modelling, Brunel University
BSc Mathematics, Universiti Sains Malaysia

Email: alaramli@usm.my | Room No.: 022 | Phone: 04-6532065

  

Profile

Overview:

He recently joined the School of Mathematical Sciences in 2012 after graduating from Durham University in the field of computer vision.

His current research is in Computer Aided Geometrical Design, Bootstrap and Surface Reconstruction.

During his spare time, he is passionate in doing educational outreach towards under-privileged community.

Selected publications:

1. Ibrahim, F., Misro, M. Y., Ramli A., Ali J. M. : Maximum Safe Speed Estimation Using Planar Quintic Bezier Curve with C2 Continuity. Submitted to: Proceedings of Simposium Kebangsaan Sains Matematik Ke-24 (SKSM24).

An alternative way in estimating design speed or the maximum speed allowed for a vehicle to drive safely on a road is proposed. We use curvature information from Bezier curve fitting on a map. The result is very promising as maximum speed are validated. In this paper, manual adjustment needed to be carried out.

2.  Liew, K. J., Ramli, A., Abd. Majid, A. (2016): B-Spline Surface Fitting on Scattered Points, Applied Mathematics & Information Sciences, Vol. 10, No: 1, page 273-281

An interpolation on 3D points is more challenging on 2D data points. This paper discuss the effectiveness of B-spline approximation algorithm in approximating the bicubic B-spline surface from the set of scattered data points which are taken from the scanned 3D object in the form of point sets.Experimental results demonstrate that the scattered data points are better fitted after the modification of the algorithm and the accuracy of the approximated bicubic B-spline surface is easily influenced by the presence of noise.

3. Ramli, A., Ivrissimtzis, I. (2009) Bootstrap Test Error Estimations of Polynomial Fittings in Surface Reconstruction. VMV 2009: 101-112

The work is written during my PhD candidature. We propose the use of the bootstrap technique for estimating the test error in the context of surface reconstruction from noisy point sets. Bootstrap test error estimation is beneficial as it gives verification of a fitting. This is especially important when the data is overfitted or contains outlier. As research proposal require fitting on real data, a statistical approach like Bootstrap Method will be useful.

Research Interest:

  1. Surface Reconstruction
  2. Bootstrap Error
  3. Curves and Surfaces
  4. Data Fitting
  5. Rail and Road Design

 

 Safe speed estimation based on curvature profile in Jalan Tun Sardon in Balik Pulau, Penang.

 

 

Supervision

Supervision

Graduated

 

Year Name Title Level Role
2017 Liew Khang Jie Bicubic B-Spline and Thin Plate Spline On Surface Appoximation PhD

Main Supervisor

2015 Fauzi Bin Mohamed Yusof

Mathematical Modeling Of The Spread Of Hanta Virus

Infection

PhD Co-Supervisor

 

On- Going

 

No Name Title Level Role
1. Md Yushalify Bin Misro Trigonometric Bezier Transition Curve PhD

Main Supervisor

2. Nur Soffiah Binti Sahubar Ali A generalized class of Bezier-like curves and surface PhD Main Supervisor
3. Najihah Binti Mohamed Shape Optimization Problem Based On Fairing Cubic B-Spline Surfaces Using Simulated Annealing PhD Main Supervisor
4. Mohd Syakir Bin Saffie Bezier Curve Interpolation on Road Design MSc Main Supervisor
5. Siti Jasmida Binti Jamil Shape Preserving Interpolation using Rational Cubic Ball Triangular Pathes PhD Main Supervisor

*Listed are only supervision on PhD and MSc by research-mode

 

Publications

Publication

  A) Publications with peer review process

 Sahubar Ali, N. S., Ramli, A., Azahar, A. A., and Abdul Rahman, N. (2017): Comparing Reliability Of Training Error And Bootstrap Error For Least Square Fitting On Noisy Data. In AIP Conference Proceedings 1830, 080004

 Liew, K. J., Ramli, A., Abd. Majid, A. (2016): Point Set Denoising Using Bootstrap-Based Radial Basis Function. PLoS ONE 11(6): e0156724. doi: 10.1371/journal.pone.0156724

 Liew, K. J., Ramli, A., Abd. Majid, A. (2016): A Comparison Study Between B-Spline Surface Fitting and Radial Basis Function Surface Fitting on Scattered Point, Jurnal Teknologi, Vol. 78, No: 6-5,  page 103-107

 Liew, K. J., Ramli, A., Abd. Majid, A. (2016): B-Spline Surface Fitting on Scattered Points, Applied Mathematics & Information Sciences, Vol. 10, No: 1, page 273-281

 Liew, K. J., Ramli, A., Abd. Majid, A. (2016): Searching For The Optimum Value Of The Smoothing Parameter For A Radial Basis Function Surface With Feature Area By Using The Bootstrap Method, Comp. Appl. Math., 2016. doi:10.1007/s40314-016-0332-x

Ahmad, A., Ali, J. M., Ramli A. (2015): Designing font using radial basis function, Proceedings of the 2nd Innovation and Analytics Conference & Exhibition. Vol. 1691. AIP Publishing.

 Misro, M. Y., Ramli A. & Ali J. M. (2015): Approximating Maximum Speed on Road from Curvature Information of  Bezier Curve, International Journal of Mathematical, Computational, Physical, Electrical and Computer Engineering 2015, Vol. 9, No:12,  page 709 -716

Ibrahim, F., Ali J. M. & Ramli A. (2015): Generating Arabic Fonts Using Rational Cubic Ball Functions, World Academy of Science, Engineering and Technology, International Journal of Computer, Electrical, Automation, Control and Information Engineering 10.2: 257-260.

Sahubar Ali, N. S., Ramli A. (2014): Preservation of sharp edges on 2D drawing using B-Spline curve, Proceedings of the 3rd International Conference on Computer Engineering & Mathematical Sciences (ICCEMS 2014), Langkawi, Malaysia, 4 – 5 December, 2014: 339 – 343

Liew, K. J., Ramli, A., Abd. Majid, A. (2014): Sharp Edge Preservation Using Bicubic B-spline Surfaces, Proceedings of the 3rd International Conference on Computer Engineering & Mathematical Sciences (ICCEMS 2014), Langkawi, Malaysia, 4 – 5 December, 2014: 717 – 722

Ramli, A., Mohd Rosli, N. A. I., Ivrissimtzis, I. (2013): Bootstrap based bilateral smoothing of point sets, Lecture Notes in Engineering and Computer Science: Proceedings of The World Congress on Engineering 2013, U.K., 3-5 July, 2013, London, pp879-884

Ramli, A., Ivrissimtzis, I. (2012) Bootstrap-Based Normal Reconstruction. In: Boissonnat JD. et al. (eds) Curves and Surfaces. Curves and Surfaces 2010. Lecture Notes in Computer Science, vol 6920. Springer, Berlin, Heidelberg

Ramli, A., Ivrissimtzis, I. (2009) Bootstrap Test Error Estimations of Polynomial Fittings in Surface Reconstruction. VMV 2009: 101-112

Ramli, A., Ivrissimtzis, I. (2009) Distance Based Feature Detection on 3D Point Sets. TPCG 2009: 53-56

Ramli A. L. A., Md. Ismail A. I., Abdul Karim M. F. (2008): Qualitative Aspects Of A Model For Hantavirus Infection, Far East Journal of Mathematical Sciences (FJMS), Volume 29, Issue 3, June 2008: 653 – 660

 B) Submitted publications with peer review process

 Liew, K. J., Ramli, A., Abd. Majid, A.: Sharp edge preservation using bicubic B-spline surfaces. Submitted to: ScienceAsia. 

 Ibrahim, F., Misro, M. Y., Ramli A., Ali J. M.: Maximum Safe Speed Estimation Using Planar Quintic Bezier Curve with C2 Continuity. Submitted to: Proceedings of Simposium Kebangsaan Sains Matematik Ke-24 (SKSM24)

 Sahubar Ali, N. S., Ramli A., Abdul Rahman, N.: Analysis on Training and Bootstrap Error Evaluation with Different Parameter Values for Radial Basis Function on Noisy Data. Submitted to: Proceedings of Simposium Kebangsaan Sains Matematik Ke-24 (SKSM24). Misro, M. Y., Ramli A. & Ali J. M.: S-shaped and C-shaped Transition Curve using Cubic Trigonometric Bezier. Submitted to: Proceedings of Simposium Kebangsaan Sains Matematik Ke-24 (SKSM24).

C) Publications without peer review process

 Misro, M. Y., Ramli, A., Ali, J. M. , Abd Hamid, N. N. (2017): Cubic Trigonometric Bézier  Spiral  Curves. Proceedings of the 14th  International  Conference  on  Computer  Graphics,Imaging and Visualization (IEEE) at Marrakesh, Morocco, May 2017.

Misro, M. Y., Ramli, A., Ali, J. M. , Abd Hamid, N. N. (2017): Pythagorean Hodograph Quintic Trigonometric Bézier Transition Curve. Proceedings of the 14th  International  Conference  on  Computer  Graphics,Imaging and Visualization (IEEE) at Marrakesh, Morocco, May 2017.

Others

Community Engagement

2016

No Event Source of Funding Output
1

English Camp: Pumpkin Academy

- Project Leader

Date: 28-30 January 2016
Venue: SMK Labu besar

Target participants: Students of  SMK Labu Besar

English camp for students from low-income family

SMK Labu Besar

Peserta: 80 students

2

Musical Theater : But Cikgu, We Lost
- Project Leader

Date: 19 February 2016
Venue: Kompleks Cahaya Siswa, Universiti Sains Malaysia

A follow-up from the English Camp. This theater involve students of SMK Labu Besar and USM students

Ticket selling 11 SMK Labu Besar students

10 USM students

120+ audience
3

Musical Theater : But Cikgu, We Lost
- Project Leader

Date: 8 January 2016
Venue: Dewan Asrama, SMK Labu Besar

A follow-up from the English Camp. This theater involve students of SMK Labu Besar and USM students

SMK Labu Besar About 100 students who are staying in hostel of SMK Labu Besar and teachers of SMK Labu Besar
4

Kem 'I Love Math : Digit Dash' at SMK Padang Serai
- Advisor

Date: 20 March 2016
Venue: SMK Padang Serai

Target participants: SMK Padang Serai students

School of Mathematical Sciences, USM

and SMK Padang Serai

100 students of Form 3, 4 and 5 of SMK Padang Serai

Staff  and students of  USM

5

Kem 'I Love Math : Digit Dash' at SK Bertam Indah
- Advisor

Date: 2 April 2016
Venue: SK Bertam Indah

Target participants: 200 students from 20 different primary school

School of Mathematical Sciences, USM

and SK Bertam Indah

200 students from 20 different primary schools

Staff  and students of  USM

6

Kem 'I Love Math : Math Explorer'
- Advisor

Date: 23 April 2016
Venue: School of Mathematical Sciences, USM, USM

Target participants: Kem for students from Kedah, Penang and Perak in collaboration with Kesatuan India Muslim Malaysia

School of Mathematical Sciences, USM

and Kesatuan India Muslim Malaysia

About 100 students from Kedah, Perak dan Pulau Pinang

Staff  and students of  USM

7

Kem 'I Love Math : Math Explorer' di SMK Labu Besar
- Project Leader

Date: 7 May 2016
Venue: SMK Labu Besar

Target participants: Mathematics Camp for Form 5 students of SMK Labu Besar

School of Mathematical Sciences, USM

and SMK Labu Besar

100 students Tingkatan 5 SMK Labu Besar

Staff  and students of  USM

2015

No Aktiviti Source of Funding Output
1

Kem Matematik, Digit Dash: Bertam
- Project Leader

Date: 17 Oktober 2015
Venue: SK Bertam Indah

Target participants: Primary school students

Sekolah SK Bertam Indah, Kementerian Pelajaran Malaysia dan School of Mathematical Sciences, USM 126 students from  10 primary schools from around Malaysia
2

Kem Bahasa Inggeris, HOP Alpha
- Project Leader

Date: 8-10 Oktober 2015
Venue: Kem Seri Ternas, Sik Kedah

Target participants: Students from SMK Bandar Baharu Sintok and SMK Gulau

English camp for students

US Embassy in Kuala Lumpur

Participants: 60 students

International students from USM: 3 students

 USM students: 7

USM staff: 5 persons

Others: 20

3

Kem Matematik, Digit Dash: Langkawi
- Project Leader

Date: 15 Ogos 2015
Venue: SMK Tunku Putra, Langkawi, Kedah

Target participants: Form 5 students of the school

School of Mathematical Sciences, USM

110 students from SMK Tunku Putra, SMK Kedawang and SMK Ayer Hangat, Langkawi, Kedah

3 staff, 11 USM students

4

Kem Matematik, Digit Dash
- Project Leader

Date: 18 April 2015
Venue: SMK Labu Besar, Kulim, Kedah

Target participants: Form 5 students of the school

Sponsored by SMK Labu Besar for food and transportation

School of Mathematical Sciences, USM

99 students from SMK Labu Besar

9 USM students

5

Kem Bahasa Inggeris, HoP 5
- Project Leader

Date: 5-8 Februari 2015
Venue: Sedim Eco Resort, Kulim, Kedah

Target participants: Students from Kulim/Baling District

US Embassy in KL:

60 students from SMK Labu Besar, Kulim SMK Bakai, Baling and SMK Sungai Karangan, Kulim

2014

6

The Green Festival

- Project Leader

Date: 25 September 2014
Venue: SMK Derma

Target participants: Students from Kedah and Perlis

Environmental camp with student conference, field trip and exhibition

US Embassy in KL

141 individuals from 11 schools, lecturers of UiTM Perlis, UUM and UNIMAP, agencies: JAS, WWF and SAM
7

South East Asia Youth Leadership Program 2014 :
- Chaperon


Date: 3 – 27 April 2014
Venue: Northern Illinois University, USA

Department of State, United States Of America 5 Form 4 students

 A) Publications with peer review process

 

1.     Sahubar Ali, N. S., Ramli, A., Azahar, A. A., and Abdul Rahman, N. (2017): Comparing Reliability Of Training Error And Bootstrap Error For Least Square Fitting On Noisy Data. In AIP Conference Proceedings 1830, 080004

 

2.     Liew, K. J., Ramli, A., Abd. Majid, A. (2016): Point Set Denoising Using Bootstrap-Based Radial Basis Function. PLoS ONE 11(6): e0156724. doi: 10.1371/journal.pone.0156724

 

3.     Liew, K. J., Ramli, A., Abd. Majid, A. (2016): A Comparison Study Between B-Spline Surface Fitting and Radial Basis Function Surface Fitting on Scattered Point, Jurnal Teknologi, Vol. 78, No: 6-5,  page 103-107

 

4.     Liew, K. J., Ramli, A., Abd. Majid, A. (2016): B-Spline Surface Fitting on Scattered Points, Applied Mathematics & Information Sciences, Vol. 10, No: 1, page 273-281

 

5.     Liew, K. J., Ramli, A., Abd. Majid, A. (2016): Searching For The Optimum Value Of The Smoothing Parameter For A Radial Basis Function Surface With Feature Area By Using The Bootstrap Method, Comp. Appl. Math., 2016. doi:10.1007/s40314-016-0332-x

6.     Ahmad, A., Ali, J. M., Ramli A. (2015): Designing font using radial basis function, 

Proceedings of the 2nd Innovation and Analytics Conference & Exhibition. Vol. 1691. AIP Publishing.

 

7.     Misro, M. Y., Ramli A. & Ali J. M. (2015): Approximating Maximum Speed on Road from Curvature Information of  Bezier Curve, International Journal of Mathematical, Computational, Physical, Electrical and Computer Engineering 2015, Vol. 9, No:12,  page 709 -716

8.     Ibrahim, F., Ali J. M. & Ramli A. (2015): Generating Arabic Fonts Using Rational Cubic Ball Functions, World Academy of Science, Engineering and Technology, International Journal of Computer, Electrical, Automation, Control and Information Engineering 10.2: 257-260.

9.     Sahubar Ali, N. S., Ramli A. (2014): Preservation of sharp edges on 2D drawing using B-Spline curve, Proceedings of the 3rd International Conference on Computer Engineering & Mathematical Sciences (ICCEMS 2014), Langkawi, Malaysia, 4 – 5 December, 2014: 339 – 343

10.  Liew, K. J., Ramli, A., Abd. Majid, A. (2014): Sharp Edge Preservation Using Bicubic B-spline Surfaces, Proceedings of the 3rd International Conference on Computer Engineering & Mathematical Sciences (ICCEMS 2014), Langkawi, Malaysia, 4 – 5 December, 2014: 717 – 722

11.  Ramli, A., Mohd Rosli, N. A. I., Ivrissimtzis, I. (2013): Bootstrap based bilateral smoothing of point sets, Lecture Notes in Engineering and Computer Science: Proceedings of The World Congress on Engineering 2013, U.K., 3-5 July, 2013, London, pp879-884

12.  Ramli, A., Ivrissimtzis, I. (2012) Bootstrap-Based Normal Reconstruction. In: Boissonnat JD. et al. (eds) Curves and Surfaces. Curves and Surfaces 2010. Lecture Notes in Computer Science, vol 6920. Springer, Berlin, Heidelberg

13.  Ramli, A., Ivrissimtzis, I. (2009) Bootstrap Test Error Estimations of Polynomial Fittings in Surface Reconstruction. VMV 2009: 101-112

14.  Ramli, A., Ivrissimtzis, I. (2009) Distance Based Feature Detection on 3D Point Sets. TPCG 2009: 53-56

15.  Ramli A. L. A., Md. Ismail A. I., Abdul Karim M. F. (2008): Qualitative Aspects Of A Model For Hantavirus Infection, Far East Journal of Mathematical Sciences (FJMS), Volume 29, Issue 3, June 2008: 653 – 660

 

B) Submitted publications with peer review process

1.      Liew, K. J., Ramli, A., Abd. Majid, A.: Sharp edge preservation using bicubic B-spline surfaces. Submitted to: ScienceAsia. (publisher's acknowledgement of receipt enclosed – ‘Accepted - 1 – Kenji.pdf’)

2.      Ibrahim, F., Misro, M. Y., Ramli A., Ali J. M.: Maximum Safe Speed Estimation Using Planar Quintic Bezier Curve with C2 Continuity. Submitted to: Proceedings of Simposium Kebangsaan Sains Matematik Ke-24 (SKSM24). (publisher's acknowledgement of receipt enclosed – ‘Accepted - 2a - Fakharuddin.pdf’ and ‘Accepted – 2b – Fakharuddin.pdf’)

3.      Sahubar Ali, N. S., Ramli A., Abdul Rahman, N.: Analysis on Training and Bootstrap Error Evaluation with Different Parameter Values for Radial Basis Function on Noisy Data. Submitted to: Proceedings of Simposium Kebangsaan Sains Matematik Ke-24 (SKSM24). (publisher's acknowledgement of receipt enclosed – ‘Accepted - 3a – Soffiah.pdf’ and ‘Accepted – 3b – Soffiah.pdf’)

4.      Misro, M. Y., Ramli A. & Ali J. M.: S-shaped and C-shaped Transition Curve using Cubic Trigonometric Bezier. Submitted to: Proceedings of Simposium Kebangsaan Sains Matematik Ke-24 (SKSM24). (publisher's acknowledgement of receipt enclosed – ‘Accepted - 4a – Yus.pdf’ and ‘Accepted – 4b – Yus.pdf’)

C) Publications without peer review process

 

1.     Misro, M. Y., Ramli, A., Ali, J. M. , Abd Hamid, N. N. (2017): Cubic Trigonometric Bézier  Spiral  Curves. Proceedings of the 14th  International  Conference  on  Computer  Graphics,Imaging and Visualization (IEEE) at Marrakesh, Morocco, May 2017.

2.     Misro, M. Y., Ramli, A., Ali, J. M. , Abd Hamid, N. N. (2017): Pythagorean Hodograph Quintic Trigonometric Bézier Transition Curve. Proceedings of the 14th  International  Conference  on  Computer  Graphics,Imaging and Visualization (IEEE) at Marrakesh, Morocco, May 2017.

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