Emission signal visualization device

An emission signal visualization device which acquires a signal generated from a measured object as a detection signal while moving a sensor in a rectangular parallelepiped measurement space with one surface stationarily facing a measured object and displays a signal level of the detection signal in a color on a display device, the emission signal visualization device comprising:

• a photographed image storage unit configured to store a photographed image acquired by photographing the measurement space for every given time;
• a three-dimensional memory that stores, in an analytical three-dimensional space model defined as a lattice-shaped mesh in which the measurement space is divided into a depth direction, a lateral width direction, and a height direction at respective given intervals, each section of the analytical three-dimensional space model in association with section management information including a three-dimensional coordinate of each section in the analytical three-dimensional space model, the detection signal, and a color value of a maximum signal level in the detection signal;
• a unit configured to display the photographed image stored in the photographed image storage unit on the display device;
• a unit configured to overlap and display a screen mesh frame constituted by screen sections associated with the section as a mesh frame for displaying an analytical result and the photographed image;
• a unit configured to sequentially specify the sections having a depth coordinate corresponding to a specified distance from the measured object;
• a unit configured to read, for each specified section, a two-dimensional coordinate constituting the three-dimensional coordinate assigned to the section and the color value assigned to the section;
• and
• a unit configured to display the screen section corresponding to the two-dimensional coordinate with a color of the read color value.