Information processing apparatus and control method thereof

摘要

An information processing method includes: converting voxel data to node data in which a voxel, which has a brightness value that is outside a certain brightness value range, is set as a first node, and a voxel, which has a brightness value that is within the certain brightness value range, is set as a second node that has a capability to extract relating nodes based on a neighborhood relationship between voxels; performing, for each second node, a calculation processing to calculate an output value of a reaction-diffusion equation by using a value corresponding to a brightness value of the second node and values corresponding to brightness values of relating nodes extracted from the second node, a predetermined number of times; and determining a brightness value of each second node from the output value of the reaction-diffusion equation after performing the calculation processing the predetermined number of times.

主权项

1. An image processing method, comprising:
converting, by using a computer, voxel data of tomographic images to node data in which a voxel of the voxel data, which has a brightness value that is equal to or greater than an upper limit value of a certain brightness value range to be focused on, is set as a first node whose value corresponds to the upper limit value and is within a value range of a reaction-diffusion equation, a voxel of the voxel data, which has a brightness value that is equal to or less than a lower limit value of the certain brightness value range, is set as a second node whose value corresponds to the lower limit value and is within the value range of the reaction-diffusion equation, and a voxel of the voxel data, which has a brightness value that is within the certain brightness value range, is set as a third node that has a capability to extract relating nodes that are based on a neighborhood relationship between voxels; performing, by using the computer and for each third node included in the node data, a calculation processing to calculate an output value of the reaction-diffusion equation by using a value corresponding to a brightness value of the third node and values corresponding to brightness values of relating nodes extracted from the third node, a predetermined number of times; determining, by using the computer, a brightness value of each third node from the output value of the reaction-diffusion equation after performing the calculation processing the predetermined number of times; and another performing, by using the computer, a rendering processing by using a brightness value of each first node, a brightness value of each second node and the brightness value of each third node.