Feb 18, 2010

SIFT



I still have many question marks flying around my head. There may be some miss-understanding that make my implementation is weak for scaling & orientation invariance (which should be the strongest compared with the other algorithms).
Ref :
My code is heavily base on Rob Hess`s implementation. But I don`t want to install opencv and can`t understand the descriptor building function. So I just sampling a rotated grid with fixed size in all scale. In the matching step, check distance between 2 descriptor only (accepted if d is less than 0.001)

20100223
Get better result after pre-smoothing.

Feb 5, 2010

新春特輯


又有兩位同事離開corel 了。然後大家超捧場的 XD


Feb 3, 2010

CUDA Quick Guide

Jan 25, 2010

春聯節


用金漆寫起來完全是兩回事!看來寫之前不能潤筆了,可那樣洗筆的時候會很難過。然後可能是顆粒比較大的關係,金粉幾乎都附在筆毛外,一筆下去就沒了,大概得多用點筆肚。

桌子很小,所以用新的螢幕接上NB,然後直接看字帖,不過這樣感覺好累啊!另外G1S的跟這台三星牌的resolution好像不太合 /_\

Jan 22, 2010

bug in Dragon Age


If you rush in the fade, you have to handle the same illusion twice, sometimes.

Jan 20, 2010

DOG




A rough DOG result between 2 scale level. (float value are clamped between 0.0f - 1.0f)

Jan 18, 2010

篆刻:堅


刻得很趕,刻的時候覺得狀況不太好,很久很久沒刻這麼小的章了,不過刻完後覺得效果還不錯,也就沒什麼修了。