An improved CLG Algorithm based on HSV color model Danxia Luo; Shuqing Li; Chao Li
2010 3rd International Conference on Advanced Computer Theory and Engineering(ICACTE),
2010-Aug., Volume:
5
Conference Proceeding
The implementation and optimization of the traditional CLG (Combined local and global) algorithm is always proposed in the gray model. It doesn't make full use of color information. The same global ...smoothness factor doesn't facilitate discontinuity preservation. This paper, firstly, improves the traditional Gradient Constraint Equation; then combines Horn Schunk algorithm and Lucas Kanade algorithm in the HSV color space and chooses adaptive smoothing factor by canny edge detection; finally, comparisons with experiments from the literature demonstrate the favorable performance of the proposed methods with more robustness and 100% density.
Coal bed seams have been considered as promising sequestration reservoirs for CO2 disposal to mitigate the green house gas emissions. The CO2 adsorption and desorption attributes of CO2 on dry ...Malaysian coals (Sarawak, volatile bituminous) were performed using a sorptomat apparatus (ASAP 2010, Micromeritics, USA) and BELSORP-mini II machine (BEL Japan, Inc.) at 273K, 298K and pressure up to 1bar. The CO2 adsorption was favourable at low temperature and dry coal conditions. However, S3 and S4 coals have the highest adsorption capacity by 0.71 and 0.73 mmol/g respectively. According to IUPAC classification of adsorption isotherms, CO2 adsorption isotherm of all coal samples follow type I which most probably describe the adsorption limited to a few molecular layers (micropores). The results of adsorption and desorption isotherm demonstrate a positive hysteresis in all coal samples. The S1 coal and S2 coal have the highest hysteresis between adsorption and desorption isotherm compared to S3 coal and S4 coal. According to hysteresis classifications, the hysteresis during CO2 adsorption and desorption process for all coal samples follows type H3 which describes micropores and mesopores. The evaluation of the equilibrium adsorption data where fitted using by Langmuir, Freundlich, Redlich-Peterson, Koble-Corrigan, Toth and Sips models. Toth model provided the best fit for all adsorption experimental data that predicting all coals having heterogeneous surface properties.
PDF