JPEG compression 1. Pixel based motion estimation: the pixel based motion estimation approach seeks to determine motion vectors for every pixel in the image. This is also referred to as the optical flow method, which works on the fundamental assump

非负约束最小二乘法丰度反演 NCLS 矩阵运算 EA=X 参考文献：[1]R. Bro, S. D. Jong,"A FAST NON-NEGATIVITY-CONSTRAINED LEAST SQUARES algorithm" [2]Charles L. Lawson, Richard J. Hanson ,Solving Least Squares Problems (Classics in Applied Mathematics) (Society for Industri