Wave rock is an important form of American rock in the early 1960s. Compared with the rippling sound of guitar, the timbre of rock instruments is more like the absolute sound of waves, simple and pure, trio songs. Music seems to be similar to monochrome, but it was a colorful music at that time and became the pioneer of rock music.

Wave music, automatic inspection system, function name, SURF algorithm, algorithm introduction, algorithm principle, wave music The first wave rock was started by Dick Dale and his single "Let Go Tripping". This was a success in California. But this kind of songs are inspired by countless bands ―― like Chantays and Surfaris, which are recognized all over the country (individual ones like Pipeline and Wipe Out), and almost all of them are trying to create another single percussion music to make a breakthrough. The second wave of rock and roll was started by the beach boys. They combined the pop style of Four Freshmen with the rock rhythm of Chuck Berry. Like Jan &；; Ronnie & The Day Tonas, these later bands, but the beach boy still insisted on bringing the last wave of music to the audience, because they integrated the infectious sound of the beach and waves into the lyrics instead of impressionist music. However, among artists in the 1960s, rock and roll was widely tried, and it remained popular until the 1990s, where it influenced those generations. Representative: beach boys automatic inspection system settlement tool, used to manage risks &; Finance is a system that automatically checks the consistency of freight documents. Function name Function surf is used to draw a three-dimensional surface (color) diagram, similar to mesh. Surf(X, y, Z)X, y and z are usually functions of x and y, that is, Z(X, y). X and y are usually data grids generated by calling the meshgrid function (see meshgrid for details). SURF (...,' attribute name', ...) related functions: mesh, meshc, meshz SURF algorithm accelerated robust features (surf) is a robust image recognition and description algorithm, which was presented at the European Computer Vision Conference in 2006. This algorithm can be used in computer vision tasks, such as object recognition and 3D reconstruction. Part of his inspiration comes from SIFT algorithm. The version of SURF standard is several times faster than SIFT, and its author claims that it is more robust than SIFT in different image transformations. SURF is based on approximate 2D discrete wavelet transform, and effectively uses the integral graph. Herbert Bay (left) This algorithm was first published by Herbert Bay in ECCV in 2006, and was officially published in Computer Vision and Image Understanding in 2008. This paper has been cited more than 9000 times. SURF algorithm is introduced as an accelerated version of Scale Invariant Feature Transform (SIFT) algorithm, which completes the matching of objects in two images under moderate conditions and basically realizes real-time processing. In fact, its fast basis is only the first haar derivative of the integral image. Algorithm principle Heisenberg matrix is the core of SURF algorithm. For the convenience of operation, it is assumed that the function f(x, y) and the Hessian matrix h consist of the second-order partial derivative of the function: