Optimizate objective function in matrix
2016-07-01 19:12
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1.Min12xTAx+xTb+c
Equals to solve:
12(A+AT)x=−b
2.Min12xTAx+xTb+c
subject to:
A′x=b′
Equals to solve:
⎡⎣12(A+AT)A′A′T0⎤⎦[xλ]=[−bb′]
whose application can be seen in http://blog.csdn.net/seamanj/article/details/51769868
3.Min∥Ax+b∥2
Equals to solve:
Ax=−b
4.Min∑i=1m∥Aixi+bi∥2
Equals to sovle:
Aixi=−bi,∀i=1,2,⋯,m
⎡⎣⎢⎢⎢⎢⎢A1A2⋱Am⎤⎦⎥⎥⎥⎥⎥⎡⎣⎢⎢⎢⎢x1x2⋮xm⎤⎦⎥⎥⎥⎥=⎡⎣⎢⎢⎢⎢−b1−b2⋮−bm⎤⎦⎥⎥⎥⎥
note:∥v∥≥0
5.Min∑i=1m∥Rpi−qi∥2
where R is a rotation matrix
Equals to solve:
the orthogonal part in polar decomposition of the matrix qipTi
[Meshless Deformations Based on Shape Matching]
[Example-Based skeleton Extraction]
Equals to solve:
12(A+AT)x=−b
2.Min12xTAx+xTb+c
subject to:
A′x=b′
Equals to solve:
⎡⎣12(A+AT)A′A′T0⎤⎦[xλ]=[−bb′]
whose application can be seen in http://blog.csdn.net/seamanj/article/details/51769868
3.Min∥Ax+b∥2
Equals to solve:
Ax=−b
4.Min∑i=1m∥Aixi+bi∥2
Equals to sovle:
Aixi=−bi,∀i=1,2,⋯,m
⎡⎣⎢⎢⎢⎢⎢A1A2⋱Am⎤⎦⎥⎥⎥⎥⎥⎡⎣⎢⎢⎢⎢x1x2⋮xm⎤⎦⎥⎥⎥⎥=⎡⎣⎢⎢⎢⎢−b1−b2⋮−bm⎤⎦⎥⎥⎥⎥
note:∥v∥≥0
5.Min∑i=1m∥Rpi−qi∥2
where R is a rotation matrix
Equals to solve:
the orthogonal part in polar decomposition of the matrix qipTi
[Meshless Deformations Based on Shape Matching]
[Example-Based skeleton Extraction]
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