title: Heart visualization based on hybrid transfer function using size and gradient.
abstract: Having the ability to visualize the heart clearly and precisely would be beneficial for pathology research, presurgical planning, and clinical approaches. Multi-dimensional transfer functions were employed to improve the overall performance of images. To provide a satisfactory visualization quality on the shape and boundaries of the heart, a new hybrid transfer function combining structure size with gradient was designed to highlight the area of the heart. Initially, a histogram of gradient and histogram of size was computed and then classification was performed for providing the spatial information. Finally, several hybrid strategies were presented for the design of the transfer function, including opacity and color. By experimental evaluation, the proposed hybrid transfer function visualized the cardiac outline and internal structure more clearly and easily.
authors.affiliation: Department of Computer Science and Technology, Harbin Institute of Technology, Harbin, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Xia
authors.affiliation: Department of Computer Science and Technology, Harbin Institute of Technology, Harbin, China.
authors.forename: Yixuan
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Department of Computer Science and Technology, Harbin Institute of Technology, Harbin, China.
authors.forename: Kuanquan
authors.initials: K
authors.lastname: Wang
mesh_terms: D000465:Algorithms; D000818:Animals; D003124:Colorimetry / Q000379:methods*; D006321:Heart / Q000033:anatomy & histology*; D007089:Image Enhancement / Q000379:methods; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012756:Sheep; D014584:User-Computer Interface
keywords: histogram of gradient; histogram of structure size; multi-dimensional transfer function; visualization of heart