FYP Presentation

I'm going to have my final assesment for my undergrad life tommorow... the FYP presentation. I'm a little bit nervous right now-- thanks to my supervisor who said to me: "I think your presentation should be okay- I'm not worried about you". You're not the one worried sir.. I am..

LOL

But thankfully there are a lot of friends who gave me inputs and opinion.. so I do hope I can rehearse and test my slides before the presentation tommorow.. maybe tonight.. after workshop =)

I never shared about my FYP in this blog right? I guess I'll talk about it for a while..

Did you ever wonder what takes the most of our brain to do? It's our vision ability. Or.. at least that's what I heard.. For you people who study biology, please correct me if I'm wrong. So, back to human vision system, did you ever wonder how we are able to process those images we see from our eyes, recognize the difference between an apple and a picture of an apple? Have you ever wondered how we are able to tell easily whether a person in running, walking or jumping? Consider the video of two person dancing below. You can directly recognize the two individuals, their body parts and what they are doing right?

Our vision system is one of the most complicated mysteries to researchers who want to imitate it inside a computer. So far, computer vision technique has been attracting a large number of researchers, with debatably small or mediocre breakthrough.

My project, or you can say, my research is to create a system which is able to process a video sequence of two people interacting with each other, tracking the body parts of each individuals. These information will then be used to cross reference with a database of activites to recognize what activity they are doing...

Sounds simple right? But it was not as simple as that.. Gosh..  It took me a lot of time to grasp the original system, not to mention trying to improve it... But I managed to do it.. somehow.. thanks to His blessings.. =)

The system diagram is shown below..

So basically each frame in the sequence will undergo 5 steps: Background subtraction where the individuals will be extracted, followed by pixel color classification to cluster the pixel based on colors as blobs, Relaxation labeling for simplifying the blobs, then blob tracking and finally, grouping of blobs based on their body parts.. in total I managed to type around 80 pages worth of MATLAB code.. And it will run for fourteen hours when I click the button "execute".

Yes - 14 hours. For an 8 seconds video.

That's why now I'm really amazed with the gift God gave us.. We've taken too many things for granted, but after working on this project I really am humbled. True science and knowledge should bring us closer to our Maker, the Lord our God - not throw us away from Him =)

I managed to improve the original algorithm as well. I did a lot of modification and the errors are down by almost half.. Thanks to the idea of my supervisor and God's guidance =). The original paper is written by S. Park and J. K. Aggarwal, titled ‘Simultaneous tracking of multiple body parts of interacting persons’. Google it if you want. You'll find it.

So to close the post.. let me show you the final output ifI used the earlier video sequence. Different color shows different body parts. It looks crappy, I know, but I'm very happy I got this result even though I know it looks crappy haha..

Let there be light!

By the way.. if you're interested, you can come to my presentation. 5th of May 2009 @TR90 NTU, 14.30 pm.

Outing KTB: 2nd of May 2009

I haven't got the chance to introduce you to my (soon-to-be) one year old KTB... We still haven't decided on the name yet (although we nearly decided to name it KTB:Kelompok Tjina Batak - LOL) but I am thankful that the Lord blessed us with a group of (hyper-)active, (hyper-)'cerewet' bunch of people... and we have a common interest: food... this has been the third outing already by now and all of them are mainly on trying to get good foods haha...

Soooooo... without further ado.. meet Randy, Rendi, Charlo and Daniel =)

This picture is taken in Holland Village, where we went for dinner last saturday... Well, there has been a lot of plan changes but thankfully we still can go out together for the last time this semester haha.. Charlo is going back to Tangerang today (4th of May) while the rest of the three are taking special semester=)

We originally wanted to go to Wala-wala cafe.. but after we got there we realized that it was a big mistake haha.. so we stroll around looking for decent food to eat, and we and up in........

Hawker Centre...

LOL

Sad, but true haha.. Cheap but stomach filling they say.. Oh, well.. as long as they're happy then I'm also happy haha.. We ate a lot that night (Randy and Daniel treat us with large sized black carrot cake and oyster egg - They just had their birthday last week) and we closed the dinner with ice cream from the 'Cold Rock'... or was it 'Cold Stone'? I forgot haha..

This is the first time I got included in the photos we took on our outings.. haha.. Why? Because I'm the only one who took the photos.. that's why -__-'

A lot of laughter and joy was shared that night and I am thankful to have been able to know them =). Learned a lot about God, discipleship and about myself from them throughout the year. I just hope that they can keep growing into Christ-likeness in the KTB and ISCF =).

And the night was closed by...

Playing Citadels.. haha.. XD

It was a great night and I am thankful to God for it =)

Let there be light!

New Design

Ooookay...

Probably it's time for me to go back to blogging after more than one semester break.. I hope I will be able to go back to blogging constantly again.. haha.. This blog has been very useful to me for taking notes of the events surrounding my life, and my journey with God =)

So.. With the newly found spirit of blogging,  I think I could use a new look to the blog as a motivation boost =P... I'm a beginner in blogging so I'm sorry if there's a lot of mistakes here and there... especially when the title is more than one line.. (really.. i am amazed that the design maker missed this thing -__-')

Sooo.... with this... Let there be light, once again!

Rainbow over the cloudy skies

Pelangi adalah satu bentuk peringatan perjanjian Allah dengan manusia, bahwa Dia tidak akan memusnahkan bumi dan segala isinya seperti yang Ia lakukan saat kejadian air bah yang dialami oleh Nuh (Kejadian 9). Allah menempatkan busurnya di langit, dan busur itu menjadi satu pertanda janji Allah, bahwa Ia tidak akan pernah meninggalkan kita.

Kita melihat pelangi seringkali adalah pada saat saat setelah hujan. ini mengingatkan kita bahwa setelah hujan, badai atau mendung, pengharapan itu ada dan Tuhan beserta kita (let's save the scientific explanation of rainbow for another time). It is not just a symbol for God, but a symbol for us man as well. He is watching over us, guarding us, sustaining our life and standing right beside us.

Tapi saya tidak pernah melihat pelangi saat hujan belum turun atau saat langit mulai mendung.

Not before last week.

It was a cloudy saturday. Aku, Abed, dan Tozzy baru mau makan mie di JP buat dinner (since kita bosen makan di Hall terus) sekalian belanja untuk masak pasta. What await us in front of JP is this sight captured from my handphone. The picture is not clear, but you can still see the glimpses of the rainbow over the cloudy skies.


It took me a while to actually appreciate this rare occasion before I finally shoot a photo of it. And it took me almost a week to fully understands what God wanted to say to me that time.

He is always watching over us, guiding us, standing right beside us, sustaining our life and give light unto our path. Be it in clear sunny days, be it moments after a storm or a rain, or be it moments before the storms and the rain. He is always with us all the way, and we are not outside of His power.

This has been a tough 3 days for me (since Friday). One of the hardest choice that I have to take in my life, and in such a short time to think. Aku mengalami berkat Tuhan, pencobaan dari Tuhan, hantaman keras terhadap apa yang menjadi pemikiran tentang tujuan hidupku selama ini, dan ujian untuk hidup sesuai dengan FirmanNya pada saat yang bersamaan. And I will be struggling until the next two days with it (at least).

Tapi saat aku melihat-lihat kembali foto yang aku ambil minggu lalu, aku terharu. Saya termenung dan terdiam melihat jawaban Allah atas segala kekhawatiranku.

Dia menjaga diriku, dan yang aku alami ini tidak lepas dari kuasaNya.

JanjiNya besertaku, bahwa Ia tidak akan meninggalkan anak-anakNya.

It's funny how God speaks through these events. I will still be struggling with it, I will still be having tough time thinking about it. I might be having trouble sleeping because of it. But one thing I know for sure: He is right by me all the way, and nothing is beyond His reach. He will give His answer to my struggle in His time.

And He made all things good in His time. Amen

-----

Lastly, this is a song I choose when I became the worship leader in PU last friday. I choose this hoping that it can help my friends to see that He is always with us, and to remind us to submit to His will. Tetapi, ternyata aku sendirilah yang terberkati oleh lagu ini.

Be it unto me, according to your Word
According to your promises,
I can stand secure
Carve upon my heart,
The truth that sets me free
According to your Word O Lord,
Be it unto me