Abstract: A polynomial calculation method includes: obtaining a plurality of to-be-calculated polynomials in a polynomial calculation application; dividing the plurality of to-be-calculated polynomials to obtain a plurality of to-be-calculated groups, where the plurality of to-be-calculated groups include a first to-be-calculated group; loading a common variable, a variable coefficient, and a reference variable that correspond to at least one to-be-calculated polynomial in the first to-be-calculated group respectively to at least one first register group, at least one second register group, and at least one third register group; controlling outer product calculation to be performed on the common variable in the at least one first register group and the variable coefficient in the at least one second register group, to obtain a first result; and controlling inner product calculation to be performed on the first result and the reference variable in the at least one third register group, to obtain a second result.

Abstract: The disclosure discloses a magnetic stimulation method with a controllable induced field direction, and belongs to the technical field of noninvasive neural regulation. The method includes the following steps: S100, determining currents i1j, i2j, i3j, j=1, 2, . . . , n required to respectively generate unit vector electric fields at a target point Pt, when the currents i1j, i2j, i3j, are respectively applied through a coil j of a magnetic stimulation coil group, n?3 and n being an integer; S200, decomposing an electric field E required at the target point Pt to three electric field components E1, E2, E3; S300, calculating currents I1j, I2j, I3j that respectively generate the electric field components E1, E2, E3 at the target point Pt, I1j=E1i1j, I2j=E2i2j, I3j=E3i3j; S400, generating the electric field E at the target point Pt by applying a current Ij=I1j+I2j+I3j=E1i1+E2i2, I3j+E3i3; through the coil j, j=1, 2, . . . , n.

Abstract: The disclosure discloses a magnetic stimulation method with a controllable induced field direction, and belongs to the technical field of noninvasive neural regulation. The method includes the following steps: S100, calculating currents i1j, i2j, i3j, j=1, 2, . . . n required to be made to generate a unit-direction vector electric field at a target point Pt, the same below; S200, decomposing a vector electric field E required at the target point to three fundamental vector directions to obtain electric field components E1, E2, E3; S300, calculating currents that may generate the electric field components E1, E2, E3 at the target point, I1j=E1i1j, I2j=E2i2j, I3j=E3i3j; S400, superimposing the currents of the three energization modes to obtain a resultant current Ij=I1j+I2j+I3j=E1i1j+E2i2j+E3i3j to be made of each coil of a coil group, that is, generating a required electric field E at the target point for specific directional simulation.

Abstract: A system and method for determining a dimension of a target. The method includes: determining a camera parameter, the camera parameter including at least one of a focal length, a yaw angle, a roll angle, a pitch angle, or a height of one or more cameras; acquiring a first image and a second image of an target captured by the one or more cameras; generating a first corrected image and a second corrected image by correcting the first image and the second image; determining a parallax between a pixel in the first corrected image and a corresponding pixel in the second corrected image; determining an outline of the target; and determining a dimension of the target based at least in part on the camera parameter, the parallax, and the outline of the target.

Abstract: A system and method for determining a dimension of a target. The method includes: determining a camera parameter, the camera parameter including at least one of a focal length, a yaw angle, a roll angle, a pitch angle, or a height of one or more cameras; acquiring a first image and a second image of an target captured by the one or more cameras; generating a first corrected image and a second corrected image by correcting the first image and the second image; determining a parallax between a pixel in the first corrected image and a corresponding pixel in the second corrected image; determining an outline of the target; and determining a dimension of the target based at least in part on the camera parameter, the parallax, and the outline of the target.

Abstract: A system and method for determining a dimension of a target. The method includes: determining a camera parameter, the camera parameter including at least one of a focal length, a yaw angle, a roll angle, a pitch angle, or a height of one or more cameras; acquiring a first image and a second image of an target captured by the one or more cameras; generating a first corrected image and a second corrected image by correcting the first image and the second image; determining a parallax between a pixel in the first corrected image and a corresponding pixel in the second corrected image; determining an outline of the target; and determining a dimension of the target based at least in part on the camera parameter, the parallax, and the outline of the target.

Abstract: A system and method for determining a dimension of a target. The method includes: determining a camera parameter, the camera parameter including at least one of a focal length, a yaw angle, a roll angle, a pitch angle, or a height of one or more cameras; acquiring a first image and a second image of an target captured by the one or more cameras; generating a first corrected image and a second corrected image by correcting the first image and the second image; determining a parallax between a pixel in the first corrected image and a corresponding pixel in the second corrected image; determining an outline of the target; and determining a dimension of the target based at least in part on the camera parameter, the parallax, and the outline of the target.