Popular Filters When smoothing or blurring images (the most popular goal of smoothing is to reduce noise), we can use diverse linear filters, because linear filters are easy to achieve, and are kind of fast, the most used ones are Homogeneous filter, Gaussian filter, Median filter, et al.
There are a lot of advantages of using image pyramids in digital image processing, and this article is about image pyramids. WHY PYRAMIDS? We all know about the two popular kinds of domain: Spatial Domain and Frequency Domain.
In last week Computational Photography class, Rob showed us a video about seam carving, which is really awesome, like magic. During my last bachelor year, I published a paper with my group named “Semantic aware sport image resizing jointly using seam carving and warping”, I worked for the sport image field detection part. So when … [Read more…]
In the Motion Capture course lecture this week, teachers talked about camShift algorithm, I heard about this algorithm since about three or four years before, but I never tried it, and during that class I thought I must do it this time. CamShift is a tracking algorithm, which is based on MeanShift algorithm, what camShift … [Read more…]
In my AI class this term, I’ll make a Checkers game strategy with my group, I think maybe we will use decision tree, and if using decision tree, an alpha-beta-pruning algorithm will be very useful. Alpha–beta pruning is a search algorithm that seeks to decrease the number of nodes that are evaluated by the minimax … [Read more…]
I watched part of a course video of “Introduction to Image Segmentation” by Yuri Boykov (University of Western Ontario) this afternoon, and at the beginning of this course, he mentioned an algorithm about active contour, which also called snakes, is a framework for delineating an object outline from a possibly noisy 2D image. By searching … [Read more…]