Compcam 2012 Fall Assignment 3
Posted: November 1, 2012 Filed under: Uncategorized Leave a commentUsed the matlab code to do the edge detection. We then do region filling to create mask for foreground/background separation. Kmeans clustering method was applied to create a cartoonized photo, which is used to be the color source of final output image.
Tested on photos given, edges found:
Mask created via region filling:
Cartoonized effect via Kmeans clustering with 8 colors:
Output image (background color changed to illustrate the background/foreground separation):
Another experiment by our own photos:
Since the lighting condition, background is less controlled compared to the photos given, edges detected are more noisy. Also, some edges such as desk boundary is actually correct.
Via low-pass filtering some manually editing (e.g., for desk boundary) we get the following mask:
We again apply Kmeans clustering to get cartoonized effect (with 32 colors):
Here is the output image:
Compcam 2012 Fall Assignment 1
Posted: September 20, 2012 Filed under: Uncategorized Leave a commentOriginal photo with left light:
Relighted photo with left light:
Original photo with right light:
Relighted photo with right light:
Original photo with both lights:
Relighted photo with both lights:
Source code can be found in the bitbucket.
Challenges: hard to take photos in position, angles that almost identical without a tripod.
Photo taken with Sony NEX-5N.
Tag Everything
Posted: January 6, 2012 Filed under: Idea | Tags: AI, Augmented Reality, Bokode, Computer Vision, RFID 2 CommentsAs mentioned in the previous post, given any visual information (image, video), it’s still difficult for computers to recognize the object that contained in the information. Although a lot of works have been done in this area, we still have only limited progress. Unfortunately, in the near future, we still can’t be too optimistic about the progress towards the field. But the good news is that we do have an easier solution: tag everything!
Design and Research
Posted: January 3, 2012 Filed under: Idea | Tags: Design, iPad, Research Leave a commentAs a problem solver, I’m interested in the similarity and difference of design and research. Paul Graham has also written an article to discuss this issue. He summarized as the following:
Design doesn’t have to be new, but it has to be good. Research doesn’t have to be good, but it has to be new. I think these two paths converge at the top: the best design surpasses its predecessors by using new ideas, and the best research solves problems that are not only new, but actually worth solving.
Basically I agree with him, but I would like to address some personal thoughts here. Having both academic and industrial background, sometimes I feel academia doesn’t offer enough recognition to the design approach. Even if you can solve a problem in a more elegant way than any other previous works, say invent a web browser that’s greater than any current browser, it’s hard for you to publish as long as your work lacks enough “technical originality” in terms of algorithm, etc.
High-level Knowledge on the Web
Posted: December 29, 2011 Filed under: Idea | Tags: AI, Common Sense Computing, Data-driven Vision, Human-based Computation, Siri 2 CommentsLet computers “think” like a human being is probably the dream of almost every computer scientist. However, despite extraordinary capability in repetitive computation, computers totally lack the high-level knowledge that human possess. For instance, while a five-year old child can easily understand what the object is given a photo, the image understanding problem is still an open problem in the computer vision community. The same can also be true to many other problems, e.g., translation between two different human languages.
Vikipedia (Visual Wikipedia)
Posted: December 27, 2011 Filed under: Idea | Tags: Networked Image, Open Data, Panaroma Leave a commentImagine that you can move your cursor on a digital map, tap and see the real time photo or video of that physical point as if you were there. You use this to check the traffic condition from your home to your office; to check whether your favorite restaurant is open today or not; to check whether maple trees in the mountain is in its best and deserve your trip, etc. That kind of life there would be easy and awesome. How can we achieve it?
About the Title
Posted: December 23, 2011 Filed under: Uncategorized Leave a comment“Beauty is our business” is a birthday salute to computer scientist Edsger W. Dijkstra. I borrowed the quotation to show that beauty can also be one of the main target of technology.
Beauty is My Business 