A histogram based data-reducing algorithm for the fixed-point independent component analysis

作者：Chiu Shih Hsuan^*; Lu Chuan Pin; Wu Dien Chi; Wen Che Yen

来源：Pattern Recognition Letters, 2008, 29(3): 370-376.

DOI：10.1016/j.patrec.2007.10.014

• independent component analysis
• FastICA
• data reduction

This paper proposes a histogram based data-reducing algorithm for improving the performance of the fixed-point independent component analysis (FastICA). This data-reducing independent component analysis (DR-FastICA) is based upon two statistical criteria to keep the histogram contour of processed data. This algorithm uses two steps (a coarse step for data sampling and a fine one for data tuning) to improve the performance of FastICA. Experimental results show that the proposed algorithm can reduce the computation time and implementation memory needed for executing FastICA, especially for large amounts of data (e.g. 1024 x 1024 images).

• 出版日期2008-2-1