potok/opencv
1
0
Fork 0
mirror of https://github.com/opencv/opencv.git synced 2026-07-30 15:53:03 +04:00
Code Packages Releases Wiki Activity

Add QR decomposition to HAL

Browse Source
This commit is contained in:
Vladislav Sovrasov
2016-08-23 16:35:03 +03:00
parent d102ea96c0
commit dfe4519c07
10 changed files with 348 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files
modules/core/src/hal_replacement.hpp
+23
View File
@@ -634,6 +634,27 @@ inline int hal_ni_SVD32f(float* src, size_t src_step, float* w, float* u, size_t
inline int hal_ni_SVD64f(double* src, size_t src_step, double* w, double* u, size_t u_step, double* vt, size_t vt_step, int m, int n, int flags) { return CV_HAL_ERROR_NOT_IMPLEMENTED; }
//! @}
/**
Performs QR decomposition of \f$M\times N\f$(\f$M>N\f$) matrix \f$A = Q*R\f$ and solves matrix equation \f$A*X=B\f$.
@param src1 pointer to input matrix \f$A\f$ stored in row major order. After finish of work src1 contains upper triangular \f$N\times N\f$ matrix \f$R\f$.
Lower triangle of src1 will be filled with vectors of elementary reflectors. See @cite VandLec and Lapack's DGEQRF documentation for details.
@param src1_step number of bytes between two consequent rows of matrix \f$A\f$.
@param m number fo rows in matrix \f$A\f$.
@param n number of columns in matrix \f$A\f$.
@param k number of right-hand vectors in \f$M\times K\f$ matrix \f$B\f$.
@param src2 pointer to \f$M\times K\f$ matrix \f$B\f$ which is the right-hand side of system \f$A*X=B\f$. \f$B\f$ stored in row major order.
If src2 is null pointer only QR decomposition will be performed. Otherwise system will be solved and src1 will be used as temporary buffer, so
after finish of work src2 contains solution \f$X\f$ of system \f$A*X=B\f$.
@param src2_step number of bytes between two consequent rows of matrix \f$B\f$.
@param dst pointer to continiuos \f$N\times 1\f$ array for scalar factors of elementary reflectors. See @cite VandLec for details.
@param info indicates success of decomposition. If *info is zero decomposition failed.
*/
//! @addtogroup core_hal_interface_decomp_qr QR matrix decomposition
//! @{
inline int hal_ni_QR32f(float* src1, size_t src1_step, int m, int n, int k, float* src2, size_t src2_step, float* dst, int* info) { return CV_HAL_ERROR_NOT_IMPLEMENTED; }
inline int hal_ni_QR64f(double* src1, size_t src1_step, int m, int n, int k, double* src2, size_t src2_step, double* dst, int* info) { return CV_HAL_ERROR_NOT_IMPLEMENTED; }
//! @}
//! @cond IGNORED
@@ -643,6 +664,8 @@ inline int hal_ni_SVD64f(double* src, size_t src_step, double* w, double* u, siz
#define cv_hal_Cholesky64f hal_ni_Cholesky64f
#define cv_hal_SVD32f hal_ni_SVD32f
#define cv_hal_SVD64f hal_ni_SVD64f
#define cv_hal_QR32f hal_ni_QR32f
#define cv_hal_QR64f hal_ni_QR64f
//! @endcond