Scott Lee
@ScottLee
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Scott Lee
12 years ago 3
New approach to describe a shape: https://images.plurk.com/3aaf245f1897df1524f146e5fbb63c0e.jpg First Order: 1 BFE,
Second Order: 2 BFEs,
Thrid Order: 3 or 4 BFEs...
Scott Lee
13 years ago 2
終於…我搞懂了由 Area Moment of Inertia 推出的 Best Fit Ellipse,和由 Image Moment 推出的 Constant Irradiance Ellipse 及 Moment Matching Ellipse 之間的差別…
Scott Lee
13 years ago 11
最近很想拼一下進度,因為想去參加花蓮的會議(嘿啦!我一向動機不純…),本打算在上星期把草稿擠出來,但as usual,每到想要拼的時候,就會有一些有的沒的大小事情來擾亂,弄得我其實這十天來的進度幾乎是零…然後也沒心情想要拼了…
Scott Lee
13 years ago 3
雖然理論上來說是不會,但實際操作上,某些 shape descriptor 其實是會被 object 在 digital image 上的大小影響,也就是和 spatial resolution 有關,要解決這個問題,有必要把每個 object 都 resize 到同一個大小…
Scott Lee
13 years ago 9
Filter test: Noise+Signal https://images.plurk.com/2ebd03a1824f11e92ff85c835c6a4402.jpg Can you find where is the signal?(LOL)
Scott Lee
13 years ago 8
Noise suppression test: https://images.plurk.com/bb96a7d2bd122e2f914272fe8448b887.jpg original noise, Poisson distribution, mean = 1599.93, std = 39.9695
Scott Lee
13 years ago 3
background estimation and threshold detection: not a problem; local peak detection and star-galaxy separation: not a problem...
Scott Lee
13 years ago 2
Some shape descriptor that I used: Compactness, Formfactor, Solidity, Convexity, Dissimilarity, Asymmetry(90), Asymmetry(180), Ellipticity
Scott Lee
13 years ago 2
想要把兩個或兩個以上的structure合併,結果當然是遇到了問題,且事情不如想像的容易,尤其是當要合併的個數不定,各structures也並非一定是named structure,且不同structure中的tag_name也許會重覆…
Scott Lee
13 years ago 5
好吧…我放棄…