A Big Step: flipink 2.0

May 24th, 2013




This week flipink get approved by app store, It’s available for download now https://itunes.apple.com/us/app/id609426490

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Pose recognition using Microsoft Kinect depth sensor

January 1st, 2011


This month I’m working on build a pose recognition middleware ,the whole setup is based on openCV.

I tried a simple way to do the gesture recognition: first use harr-like feature to find the face, then flood fill to get the connected area ,which suppose to be body , then use some sort of  AAM(http://en.wikipedia.org/wiki/Active_appearance_model), ASM (http://en.wikipedia.org/wiki/Active_shape_model) or just simple integral steping model to get the limb’s position and direction.

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the simulation of pigment flow on bibulous paper(1)

April 14th, 2009


The original idea of this article is from Dr. Chu’s PhD thesis,http://visgraph.cs.ust.hk/MoXi/ ,In that project ,he proposed a novel approach for simulate brush and pigment interact with bibulous paper, especially calligraphy brush work with chinese “Xuan” paper. I tried to reconstruct the system during the vacation of Easter,  and come up some different idea for improve the simulation quality.


本文参考香港大学CHU SIU HANGphd学位论文(http://visgraph.cs.ust.hk/MoXi/ ),并对作者的观点提出一些不同的看法和改进意见,探讨如何使用流体力学模型模拟颜料在可渗透材料上的物理运动,以实现尽可能逼真的画笔效果。

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real time fluid simulation on 2D surface

February 12th, 2009

This is also a part of my graduation thesis project, for simulate the oil pigment flow on canvas, based on the Navie-Stokes equations  http://en.wikipedia.org/wiki/Navier-Stokes_equations

most of the ideas are got from


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real time cloth simulation

November 20th, 2007


I develope this cloth simulation engine just for a SONY PS3 game development group who don’t want embed a whole physics engine into theirs game, this project build on c++ /openGL/.net, It’s not creative but I learned a lot about physics simulation. Continue reading »