2results about How to "Achieving Super-Resolution Reconstruction" patented technology

The invention relates to a Mama-based seismic image super-resolution reconstruction method, which comprises the step of constructing a local feature extraction module, a global feature extraction module and a high-quality seismic section reconstruction module so as to solve the problem of insufficient resolution caused by high-frequency attenuation and sparse acquisition. According to the invention, a Mama model is introduced, and a novel super-resolution reconstruction network is constructed. The local feature extraction module extracts shallow feature information through a convolutional layer; the global feature extraction module obtains global features through the multi-stage residual state space block; and the high-quality seismic image reconstruction module realizes reconstruction of a high-resolution seismic image through pixel recombination and convolution operation. In addition, a Charbonnier loss function is adopted, the gradient disappearance problem is effectively avoided, and the loss function of traditional Mamba is improved. According to the method, the seismic image resolution can be improved, and meanwhile, the calculation complexity and the time cost are remarkably reduced.

The present application relates to the technical field of micro computer tomography, and discloses a large-aperture parabolic single glass tube micro-CT system and a reconstruction method thereof, the system comprising an X-ray source, a straight-through X-ray shutter, a first lens supported by a lens support to move, a sample supported by a sample stage and an X-ray flat panel detector arranged in sequence along an optical axis; the first lens is a large-aperture parabolic glass tube lens of millimeter level, and the lens support is used for adjusting the angle, pitch and optical axis coaxiality of the first lens; an electric control platform controller is electrically connected with the lens support and the sample stage respectively, and a main control computer controls the sample stage to perform angle scanning, sub-pixel angle jitter sampling and multi-view field splicing scanning through the electric control platform controller. The present application adopts a large-aperture parabolic glass tube lens of millimeter level, and the quasi-parallel beam geometry after system regulation and control enables the micro-CT system to be compatible with parallel beam algorithm, and the image reconstruction quality of the original cone beam algorithm is retained and improved.