The Research Of 3D Reconstruction Algorithm Of Medical Ultrasound Images

Ultrasound three-dimensional imaging technology has become an important direction of modern ultrasonic imaging technology, with its visual display and quantitative measurement of many parameters. The core work is the development of three-dimensional reconstruction algorithm combined with the three-dimensional ultrasound data acquisition methods. This paper mainly studies of the reconstruction algorithm of three-dimensional ultrasonic imaging technology based on xMatrix transducer.Firstly, this paper reviewed and summarized the typical reconstruction algorithm of medical ultrasound three-dimensional image, including Surface Rendering algorithm and Volume Rendering algorithm. This paper analyzed and compared the characteristics and applicability of the two kinds of algorithm. Comparatively speaking, Volume Rendering algorithm is the research hotspot of current visualization.Secondly, this paper put forward improvement of traditional volume rendering algorithm (Ray Casting), according to data collection characteristics of the xMatrix transducer and improving the effect and velocity of reconstruction. The main idea is to adjust space sampling rate adaptively, using the correlation and uniformity of image space. The test results of special ultrasonic imitation (Mode1055) show that the improved algorithm retains image quality and improves calculation speed obviously.Finally, this paper preliminarily fulfilled the software design of ultrasound images visualization system, trying to make the interactive interface humanization and handy. It provides a good platform for testing, development and application of the subsequent three-dimensional reconstruction algorithm, because of integrating of traditional surface rendering algorithm, volume rendering algorithm and improved volume rendering algorithm.