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发明公开
CN107680146A PET图像的重建方法、装置、设备及存储介质 审中-实审

PET图像的重建方法、装置、设备及存储介质
摘要：
本发明适用计算机技术领域，提供了一种PET图像的重建方法、装置、设备以及存储介质，该方法包括：对接收的低分辨率PET图像进行分割，根据分割后得到的每个低分辨率PET图像块、低分辨率字典和高分辨率字典，生成每个低分辨率PET图像块的稀疏系数，根据这些稀疏系数和高分辨率字典，生成低分辨率PET图像对应的高分辨率PET图像，根据低分辨率PET图像、高分辨率PET图像、模糊矩阵和下采样矩阵，生成并输出低分辨率PET图像的重建图像，从而有效地降低了PET图像重建的时间消耗，有效地提高了PET图像重建效率和PET图像重建后的图像质量。
摘要（英）：

The invention is suitable for the technical field of computers, and provides a PET image reconstruction method, device and equipment and a storage medium. The method comprises the steps: carrying outthe segmentation of a received low-resolution PET image; generating a sparse coefficient of each low-resolution PET image according to each obtained low-resolution PET image after segmentation, a low-resolution dictionary and a high-resolution dictionary; generating a high-resolution PET image corresponding to the low-resolution PET image according to the sparse coefficients and the high-resolution dictionary; generating and outputting a reconstruction image of the low-resolution PET image according to the low-resolution PET image, the high-resolution PET image, a fuzzy matrix and a downsampling matrix, thereby effectively reducing the time in reconstructing a PET image, and effectively improving the PET image reconstruction efficiency and the quality of the reconstruction image of the PETimage.

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