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Wiimote Project » Forum » Wiimote Projects » Wiimote Interactive Whiteboard » Wiimote Smoothboard »  (Moderator: boonjin)wii smoothboard VS. wiimote whiteboard ?
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Author Topic: wii smoothboard VS. wiimote whiteboard ?  (Read 2244 times)
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« on: November 26, 2008, 11:48:27 AM »

Hi all, hi benpaddlejones, got another quesiton Smiley

I have set up my own wii IWB and I've used both Boon Jin's smoothboard and Johnny's wiimote whiteboard V3, I have found that Boon Jin's software seems to have a much better resolution than Johnny's, when I draw a diagonal line slowly in Boon Jin's software, the line is nearly straight with only minor aliasing; but when I draw the same diagonal line in Johnny's software, there are large steps all along the line, the steps are as high as 1.5-2cm on my 84" screen. And it is much harder to write in Johnny's software than Boon Jin's.

However, when I write in Boon Jin's smoothboard, the line breaks very often, by contrast, the line never breaks when I write in Johnny's software.

So I'm curious to know, it is the same pen and same screen I have used, why the line breaks in Boon Jin's software but not in Johnny's? maybe it is because the 2 softwares have totally different algorithm on calculating the center of the touch point? and why Boon Jin's software gives a much higher resolution than Johnny's?

Another interesting thing I have found out is, when I write on the screen with the butt of the pen, with the LED facing exactly the wiimote camera, I get very good resolution in both Boon Jin's and Johnny's software.

If anyone could help me understand this, I may be able to develop a pen that exerts full potential of  wiimote and the software, then share my idea and contribute to the wiimote IWB community Smiley



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« Reply #1 on: November 26, 2008, 05:33:16 PM »

dsgclan
The difference is the smoothing feature it averages the pixels. However the line breaking is an interesting thing.

I'm sure you have already told me this but what is your IR-pen setup?

Try changing your sensitivity settings in Smoothboard. Maybe too low or maybe too high and is picking up ambient infrared. Maybe even try changing teh pixel count high/low.

Ben :-)
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« Reply #2 on: November 27, 2008, 10:45:37 AM »

Hi Ben, thank you for the reply, I didn't even realize there is a sensativity setting in Boon Jin's driver, it works much better after I set the sensativity to the highest! still there are so many things to explore with the amazing software!
By the way, on another post I asked why the 2 whiteboard softwares did not work with wiimote, now I found the reason, it was the VISTA system, the 2 softwares work well with wiimote IWB on my desktop PC that runs Windows XP, I guess it is because the stupid "administrator control" thing of the VISTA system, I already had a lot of problems with it on other softwares.

So another problem solved, I can enjoy my IWB again, thanks!
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