No abstract

No abstract

To improve the interpretability or perception of information in images for human viewers is the main goal of image enhancement. Aiming at the problem that image edges are difficult to determine due to artefacts, plaques, and vascular branches in cardiovascular ultrasound, an edge ultrasound imaging detection algorithm based on spatial-frequency-domain image enhancement is proposed to improve the clarity of ultrasound images. Firstly, this paper uses the space-frequency-domain enhancement algorithm to enhance the image. This algorithm overcomes the problem of low contrast of conventional algorithms. The enhanced data matrix is used as the cost matrix, and then, the heuristic image search method is used to search the image of the cost matrix. The results show that the use of spatial-frequency-domain image ultrasound imaging algorithm can improve the contrast and sharpness of ultrasound images of cardiovascular disease, which can make the middle edge of the image clearer, the detection accuracy rate is increased to 92.76%, and the ultrasound of cardiovascular disease is improved. The edge of the image gets accuracy. The paper confirms that the ultrasound imaging algorithm based on spatial-frequency-domain image enhancement is worthy of application in clinical ultrasound image processing. The performance of the proposed technique is 32.54%, 75.30%, 21.19%, 21.26%, and 11.10% better than the existing technique in terms of edge energy, detail energy, sharpness, contrast, and information entropy, respectively.

At present, designing museum art derivatives attracts more and more attention. Experts in the field often use hand painting or image editing software to process images. This is time-consuming work and requires professional knowledge for design. In order to address this problem, by exploiting the advanced computer simulation and image processing techniques, we develop a novel museum art derivative design system, named NK-CDS. This system consists of element operation and element application modules. Given a cultural relic image, the user extracts the interest region in the image, then processes the appearance of the element by denoising, sharpening, etc. Finally, with the application interface, the user can flexibly map the processed elements to any location of a lifestyle model. This system is intuitive and easy to operate, which can improve the design efficiency of museum derivatives and inspire ideas for creative culture product design. INDEX TERMS Computer simulation, element processing, element application, museum derivatives design.