Title :
Local Activity Levels Guided Adaptive Scan Conversion Algorithm
Author :
Ma, Liyong ; Ma, Jiachen ; Shen, Yi
Author_Institution :
Sch. of Information Sci. & Eng., Harbin Inst. of Technol
Abstract :
Digital scan converter in ultrasound machine prepares data in display buffer for displaying ultrasonic echo signals on monitor with interpolating missed pixel values. The popular bilinear interpolation and bicubic interpolation in scan conversion blurred image edges and detail regions. An adaptive scan conversion algorithm was proposed with applying warped distance interpolation to enhance image edges. And local activity level threshold distinguished smooth regions from detail regions to preserve sharpness in smooth regions. Simulation result indicated that result ultrasound images were superior to other common algorithms
Keywords :
biomedical ultrasonics; image enhancement; interpolation; medical image processing; adaptive scan conversion algorithm; bicubic interpolation; bilinear interpolation; detail regions; digital scan converter; image edge enhancement; local activity level threshold; smooth regions; ultrasonic echo signals; ultrasound machine; warped distance interpolation; Biomedical imaging; Data engineering; Displays; Hardware; Image converters; Information science; Interpolation; Local activities; Ultrasonic imaging; Vectors; Digital Scan Conversion; Image Interpolation; Local Activity Property; Ultrasound Imaging;
Conference_Titel :
Engineering in Medicine and Biology Society, 2005. IEEE-EMBS 2005. 27th Annual International Conference of the
Conference_Location :
Shanghai
Print_ISBN :
0-7803-8741-4
DOI :
10.1109/IEMBS.2005.1616045
