Confessions of a researchaholic

2009-05-11

A Scanner Darkly

Filed under: Imaginary,Real — liyiwei @ 1:26 pm
Tags: ,

A Scanner Darkly is a movie that I have wanted to see for a long time but somehow did not manage to do so until recently. And it turned out to be so good that I regret haven’t watched it earlier.

The movie depicts the world and life seen from the view points of a group of drug addicts. To convey the distorted views from these druggies with impaired perceptions and brain functions, the movie deployed not only the traditional story line and dialogues, but also a cartoonish, non-photorealistic rendering achieved by rotoscoping.
The combined effect is so realistically surreal (oxymoron?) and disoriented that for the first time I kind of be able to feel what it is like to be a druggie. Rotoscoping not only preserves the original acting, but also facilitates hallucinatory or science-fiction effects such as bugs crawling all over one’s body and the “scramble suit” that disguises an undercover’s identity by constant shifting through the difference appearances of millions of people.

And yes, like all good movies, this one has a great story as well.

I believe this is one of these movies that are so unique that it is going to hang in my head for a long time.

[youtube=http://www.youtube.com/watch?v=TXpGaOqb2Z8&hl=en&fs=1]

2009-05-08

Research collaboration disclosure

Filed under: Real — liyiwei @ 3:12 pm
Tags:

It appears that I have quite a high volatility for (annual) paper acceptance rate.

As a mock to mutual fund prospectus, I would like to provide a full faith disclosure to my present and future collaborators:

  • All collaborations (with Li-Yi) are subject to rejections
  • Past performance (of Li-Yi) is no guarantee of future acceptances

;-D

2009-04-21

Similar image search

Filed under: Real — liyiwei @ 11:19 am
Tags: ,

Google’s new toy similar image search looks intriguing, but still it does not allow query by images directly.

True content-based image search is definitely very hard, and so far I haven’t seen any system that (remotely) works.

I do not know exactly how Google’s similar image search is implemented, but it could entirely avoid content-based image search by providing similarity links between images that are already indexed in Google’s database. Thus, the similarity computation could not only be conducted offline, but also leverage contextual information such as texts surrounding images. The similarity links could even be edited by humans if necessary.

I still remember the first encounter that prompted me to feel the need for content-based image search. After submitting my camera-ready paper to SIGGRAPH 2000, Stephen Spencer asked me to secure proper copyrights for all images used in the paper. But there is this famous little green texture that I simply could not track down the original ownership (even until today).

If there is a system that would allow me to do so, I will consider it a real success. (I am looking forward to Google’s official deployment of their similar image search system to see if I could unveil the true origin of “my little green friend”).

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