Jimmy peng wrote:
> So far, one of the many ways is to use lighting simulation, it is able 
> to adapt the virtual object to the real scene so as to make the scene 
> more realistic, like blend the AR environment better. However, I was 
> unable to find very detailed information about this like maybe some 
> illustrations, coding would be very nice, or even tutorial if there 
> might be, so guys, if happen that you guys knew it, please help me in 
> this areas, as I am just a starter in this kind of issue, hope you dont 
> mind.

Jimmy,

You're right, this is way outside the scope of the ARToolkit.  Further, 
there is no simple recipe for making a CG overlay integrate with a video 
background.  It's an art, an people in the visual effects industry spend 
man-years trying to improve the integration.  For real-time work, it is 
even harder as you don't have the luxury of spending 5 minutes per frame 
rendering the overlay.  That said, you can learn a lot from watching 
"making of" segments from effect-heavy DVDs like LoTR, Twister, etc. 
Pick a movie that has the effect you are after and study how they 
integrate the CG with the photographic "plate".  Real-time shadows and 
colour correction can go a long way to making your overlay look "real".

Cheers,
Darran.


-- 
Darran Edmundson [darran@e ............]
Interactive visualization for museums and industry
http://www.edmstudio.com

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Hi guys,
   
  sorry about asking this question, because I am just curious about how you expertises would reply to my query, I know this is a bit out of the scope but I am really interested in the kind of comments that you expert would give me? 

So far, one of the many ways is to use lighting simulation, it is able to adapt the virtual object to the real scene so as to make the scene more realistic, like blend the AR environment better. However, I was unable to find very detailed information about this like maybe some illustrations, coding would be very nice, or even tutorial if there might be, so guys, if happen that you guys knew it, please help me in this areas, as I am just a starter in this kind of issue, hope you dont mind.
   
  Thanks a lot for your kind attention and also your most valuable comments. Hope to hear from you soon. :p
   
  Thanks,
  Junming.

 		
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<div>Hi guys,</div>  <div>&nbsp;</div>  <div>sorry about asking this question, because I am just curious about how you expertises would reply to my query, I know this is a bit out of the scope but I am really interested in the kind of comments that you expert would give me? <BR><BR>So far,&nbsp;one of the many ways is to use&nbsp;lighting simulation, it&nbsp;is able to adapt the virtual object to the real scene so as to make the scene more realistic, like blend the AR environment better. However, I was unable to find very detailed information about this like maybe some illustrations, coding would be very nice, or even tutorial if there might be, so guys, if happen that you guys knew it, please help me in this areas, as I am just a starter in this kind of issue, hope you dont mind.</div>  <div>&nbsp;</div>  <div>Thanks a lot for your kind attention and also your most valuable comments. Hope to hear from you soon. :p</div>  <div>&nbsp;</div>  <div>Thanks,</div> 
 <div>Junming.</div><p>&#32;
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What will the world find in 2020?<br> 
Leave a part of your 2006 in the Yahoo! Time Capsule. <a href="http://sg.rd.yahoo.com/mail/sg/footer/def/*http://timecapsule.yahoo.com/capsule.php?intl=sg">Contribute now!</a>
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You can go some way towards more realistic objects with techniques  
such as use of light probes to gather scene illumination information.

There have been a number of papers at ISMAR taking such approaches.  
Search for "photometric registration". One project at the HIT Lab NZ  
taking this approach was "AR Relight" http://www.hitlabnz.org/ 
route.php?r=prj-view&prj_id=11.

Regards,
Phil.


On 10/11/2006, at 4:51 AM, Jimmy peng wrote:

> Hi guys,
>
> sorry about asking this question, because I am just curious about  
> how you expertises would reply to my query, I know this is a bit  
> out of the scope but I am really interested in the kind of comments  
> that you expert would give me?
>
> So far, one of the many ways is to use lighting simulation, it is  
> able to adapt the virtual object to the real scene so as to make  
> the scene more realistic, like blend the AR environment better.  
> However, I was unable to find very detailed information about this  
> like maybe some illustrations, coding would be very nice, or even  
> tutorial if there might be, so guys, if happen that you guys knew  
> it, please help me in this areas, as I am just a starter in this  
> kind of issue, hope you dont mind.
>
> Thanks a lot for your kind attention and also your most valuable  
> comments. Hope to hear from you soon. :p
>
> Thanks,
> Junming.

Jimmy,

The thing to realise is that AR is still an active research area,  
with many unsolved problems. This means that there are not really any  
mature solutions to anything, and that if you want to implement  
something like this you will need to work out how to do it yourself.  
If we are just able to tell you how to do something and provide a  
tutorial for it then it means that it isn't really a research problem  
any more, and AR is still in its infancy which is why you can't buy  
books or anything on how to do all the things you want to do. People  
on this mailing list can tell you how to fix up specific technical  
problems with ARToolkit, but that is about all.

regards,
Wayne

------------------------------------------------------------------------ 
-
Dr Wayne Piekarski                            pho:         
+61-8-8302-5070
Researcher and Senior Lecturer                fax:         
+61-8-8302-3381
Co Director - Wearable Computer Lab           mob:         
+61-407-395-889
School of Computer and Information Science    ema:   
wayne@c ..............
University of South Australia                 www: http:// 
www.tinmith.net


On 10/11/2006, at 7:52 AM, Philip Lamb wrote:

> You can go some way towards more realistic objects with techniques  
> such as use of light probes to gather scene illumination information.
>
> There have been a number of papers at ISMAR taking such approaches.  
> Search for "photometric registration". One project at the HIT Lab  
> NZ taking this approach was "AR Relight" http://www.hitlabnz.org/ 
> route.php?r=prj-view&prj_id=11.
>
> Regards,
> Phil.
>
>
> On 10/11/2006, at 4:51 AM, Jimmy peng wrote:
>
>> Hi guys,
>>
>> sorry about asking this question, because I am just curious about  
>> how you expertises would reply to my query, I know this is a bit  
>> out of the scope but I am really interested in the kind of  
>> comments that you expert would give me?
>>
>> So far, one of the many ways is to use lighting simulation, it is  
>> able to adapt the virtual object to the real scene so as to make  
>> the scene more realistic, like blend the AR environment better.  
>> However, I was unable to find very detailed information about this  
>> like maybe some illustrations, coding would be very nice, or even  
>> tutorial if there might be, so guys, if happen that you guys knew  
>> it, please help me in this areas, as I am just a starter in this  
>> kind of issue, hope you dont mind.
>>
>> Thanks a lot for your kind attention and also your most valuable  
>> comments. Hope to hear from you soon. :p
>>
>> Thanks,
>> Junming.
>
>