Automatic Projector Calibration

Johnny Chung Lee - Projects - Thesis

Automatic Projector Calibration

The fundamental concept of my thesis is to: 1) Embed optical sensors into the projection surface. 2) Project a series of Gray-coded binary patterns. 3) Decode the location of the sensors for use in a projected application. This video demonstrates this idea in the form of a target screen fitting application. It goes on to demonstrate how this approach can be used in multi-projector applications such as stitching (creating a large display using tiled projection) or layering (multiple versions of content on the same area for view dependent displays). Additionally, it can be used to automatically register the orientation of 3D surfaces for augmenting the appearance of physical objects.

This technique is also useful for performing automatic touch calibration of interactive whiteboards or touch-tables.

Lee, J., Dietz, P., Aminzade, D., and Hudson, S. "Automatic Projector Calibration using Embedded Light Sensors", Proceedings of the ACM Symposium on User Interface Software and Technology, October 2004. [pdf][mov][ppt]

Quick Reckoner Submission

Open publication - Free publishing - More hong kong

Tressured objects box

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Your Very Own Treasure Box
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Remember the scene in Amelie when she finds a little tin treasure box that had been hidden behind the tiles of her powder room?

amelie and the box

“…Only excavators of Tutankhamen’s tomb could have known what she felt like, uncovering this.”

Or Addie Loggins’ (Tatum O’Neal) keepsake box with the false bottom in Paper Moon?

addies treasure boxaddies treasures inside the box

These were the only things she held on to from her old life with her mother, before her whole life was turned around by a con artist with a heart of gold.

Having to leave a place without all your belongings is traumatic to anyone, yet she took the things that mattered most to her, and they served her well: a picture of her mother, some of her mothers old perfume and jewelry, cigarettes – all little memories that will comfort her and make sure she never loses that part of her.

Whenever I see things like this, such as a character that only has one suitcase of their belongings, it intrigues me. We have been trained in this capitalist society to buy more stuff buy bigger houses to fit more stuff. When does it end? If there was a fire in your gigantic house, would you be running into your bathroom to grab the soaps carved into roses? No, you’d be grabbing a quilt your grandmother made you and your dog (or children, if the case called for it). It’s these things that are most important to us, so why do we need all the other things? Why do we keep unimportant stuff around?

I have started reading Rowdy Kittens, and became very interested in the subject of downsizing. This couple is downsizing their life because they want to be able to move into a tiny house soon. But they have nothing but good things to say about living with less. Why don’t more of us do that? :)

I have been inspired to start purging my life as well; the Beau and I are going to have a garage sale to get rid of a lot of stuff, and once the dust settles from that, the real purging can begin.

What would you put in your trinket box?

Interview with Rohan Whiteley - Survey Submission

Key Aspects Submission

Open publication - Free publishing - More hong kong

touchpoints - memory and identity

spacial and object based memory triggers