| 摘要 |
PURPOSE:To clearly distinguish each internal organ by allowing the processing of shadow to include information corresponding to the density value of each slice section picture information. CONSTITUTION:Luminance information are successively read out from slice section pictures #1 to #n and are binarized to obtain binarized and extracted pictures $1 to - ($2), and a three-dimensional picture is constituted by operation and shadow is added (S3). Luminance information are read out from slice section pictures #1 to #n, and at this time, information of the same addresses as information indicating parts of internal organs in binarized and extracted pictures $1 to -, namely, only luminance (including CT values) information constituting internal organs like a stomach and a liver are extracted to obtain cut-out and extracted pictures &1 to &n (S4). A picture is constituted by luminance information selected from respective luminance information of cut-out and extracted pictures &1 to &n (S5). The shadow formed in this case includes CT values, and shadows added to surfaces of the stomach and the liver are different from each other, and consequently, they are clearly distinguished. |
