Chin Cheng Chen

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Following B.B. Mandelbrot's fractal theory (1982), it was found that the fractal dimension could be obtained in medical images by the concept of fractional Brownian motion. An estimation concept for determination of the fractal dimension based upon the concept of fractional Brownian motion is discussed. Two applications are found: (1) classification; (2)(More)
Radiation therapy has evolved from 2-dimensional (2D) to 3-dimensional (3D) treatments and, more recently, to intensity-modulated radiation therapy and image-guided radiation therapy. Improvements in imaging have enabled improvements in targeting and treatment. As computer-processing power has improved during the past few decades, it has facilitated(More)
PURPOSE To evaluate the effects of breast size on dose-volume histogram parameters and clinical toxicity in whole-breast hypofractionated radiation therapy using intensity modulated radiation therapy (IMRT). MATERIALS AND METHODS In this retrospective study, all patients undergoing breast-conserving therapy between 2005 and 2009 were screened, and(More)
In this paper, we present a biped walking trajectory generator based on the three-mass with angular momentum model using model predictive control. This approach aims to decrease the modeling error and decrease zero moment point (ZMP) horizon, so that high ZMP tracking accuracy and immediate generation are achieved. The contribution of this approach is the(More)
PURPOSE To report our clinical experiences with on-board imager (OBI) kV image verification for cranial stereotactic radiosurgery (SRS) and radiotherapy (SRT) treatments. METHODS AND MATERIALS Between January 2007 and May 2008, 42 patients (57 lesions) were treated with SRS with head frame immobilization and 13 patients (14 lesions) were treated with SRT(More)
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