3results about How to "Accurate information" patented technology

The application provides a crystal level PET time correction method based on an L1 regular term, which changes a PET time correction method based on a response line number mode to establish a system matrix, adopts a coincidence event number mode to establish the system matrix, and realizes crystal level correction from original detector block level correction or sub-crystal level correction. Meanwhile, the application adopts a least square QR decomposition method to speed up according to the sparsity of the system matrix, and adds an L1 regular term in the method to improve the robustness of the method. Through the above mode, the application makes the PET system have better resolution, and further obtains a higher quality reconstructed image, provides more accurate information in medical imaging, and provides better help for clinical diagnosis.

The present application relates to the field of display technology and human-computer interaction, and provides a flat panel display visual comfort prediction method and system based on a multi-modal fusion model, wherein the method comprises the following steps: step one, collecting an original image set, for each original image, using a generative adversarial network model to convert an input random sequence into enhanced materials, and then fusing the enhanced materials and the original image at a preset ratio to obtain a plurality of new images; step two, collecting physiological features and physical features to obtain training samples; step three, training a multi-modal fusion model based on a stacked ensemble framework; and step four, inputting test data to obtain a visual comfort prediction result. The present application aims to solve the problems of a lack of high-quality labeled samples, a lack of coupling relationship in single-modal analysis, and poor scene adaptability in the field of flat panel display visual comfort prediction.

The utility model relates to the technical field of hydraulic engineering, and discloses an artificial lake wetland anti-seepage structure which comprises a lake bottom, an HDPE (high-density polyethylene) film is arranged on the upper surface of the lake bottom, an induction layer is arranged on the upper surface of the HDPE film, a modified bentonite waterproof blanket is arranged on the upper surface of the induction layer, geotechnical cloth is arranged on the upper surface of the modified bentonite waterproof blanket, and an anti-seepage layer is arranged on the upper surface of the geotechnical cloth. The upper surface of the geotechnical cloth is provided with improved soil, the upper surface of the improved soil is provided with landscape stones, the upper surface of the improved soil is provided with vegetation, the upper surface of the lakebed is provided with a supporting assembly, the supporting assembly comprises a lakeside, and the lower surface of the lakeside is arranged on the upper surface of the lakebed; and a supporting seat is fixedly connected to the interior of the lakeside. According to the utility model, the HDPE film, the induction layer, the modified bentonite waterproof blanket, the geotechnical cloth, the improved soil, the landscape stone and the vegetation are matched with one another, so that the effects of effectively blocking seawater permeation, maintaining a proper water quality index and forming a stable ecological system are achieved.