RASTER IMAGE THREE-DIMENSIONALIZATION PROCESSING DEVICE, RASTER IMAGE THREE-DIMENSIONALIZATION METHOD, AND RASTER IMAGE THREE-DIMENSIONALIZATION PROGRAM

• US 20150091901A1
• Filed: 12/10/2014
• Published: 04/02/2015
• Est. Priority Date: 06/14/2012
• Status: Active Grant

• Current Assignee: Asia Air Survey Company Limited
• Original Assignee: Asia Air Survey Company Limited
• Inventors: CHIBA, Tatsuro
• Granted Patent: US 9,430,862 B2
• Time in Patent Office: Days
• US Class Current: 345/419
• CPC Class Codes: G06T 11/001 Texturing; Colouring; Generation of texture or colour inpainting G06T5/77
• CPC Class Codes: G06T 11/60 Editing figures and text; Combining figures or text
• CPC Class Codes: G06T 15/00 3D [Three Dimensional] image rendering
• CPC Class Codes: H04N 13/257 Colour aspects

Abstract

The computer main body includes a mesh size matching unit, a shading map generator, a red three-dimensional image generator, a raster image reader, a gradient reader, a floating-sinking degree reader, a first HSV converter, a mesh designator, a shading data reader, a second HSV converter, a hue reader, a first synthesis unit, a second synthesis unit, a third synthesis unit, an image output unit, a register, a color adjuster and the like, and causes the raster image RSGi having an elevation value to be viewed three-dimensionally.

Claims

1. A raster image three-dimesionalization processing device, comprising:

a first storage unit configured to store DEM data;

a second storage unit configured to store a raster image of a region where the DEM data is obtained;

a display unit;

(A) a unit configured to matching a mesh size of the DEM data with a mesh size of the raster image;

(B) a unit configured to obtain an above-ground opening image, an underground opening image, and a slope emphasis image in which a more enhanced color is allocated for a larger gradient value, from the DEM data, and obtain a three-dimensionally visualized image which combines these images;

(C) a unit configured to read a floating-sinking degree which is a parameter when the above-ground opening image and the underground opening image are obtained, and read a gradient when the slope emphasis map is obtained;

(D) a first HSV conversion unit configured to convert the floating-sinking degree and the gradient into brightness (Va) and saturation (Sa), respectively, while fixing hue (H) to “

0”

, and output a conversion result as a first conversion image;

(E) a second HSV conversion unit configured to subject the raster image to HSV conversion and output a conversion result as a second conversion image;

(F) a unit configured to read the hue (H) of the second conversion image and obtain a first color composite image which combines this hue (H) and the first conversion image; and

(G) a unit configured to generate a second color composite image which combines the first color composite image and the second conversion image, and display the second color composite image on a screen of the display unit.

2. The raster image three-dimensionalization processing device according to claim 1, further comprising:

(H) a unit configured to display, on the screen, a color adjustment value input screen causing HSV values of the first color composite image and HSV values of the second color composite image to be input;

(I) a unit configured to set the HSV values of the first color composite image input into the color adjustment value input screen, to the first HSV conversion unit, and also set the HSV values of the second color composite image input into the color adjustment value input screen, to the second HSV conversion unit; and

(J) a unit configured to activate the (A) to (G) units in response to the setting.

3. The raster image three-dimensionalization processing device according to claim 1, comprising:

(K) a unit configured to generate a shading image of the DEM data; and

(L) a unit configured to combine the shading image with the saturation (Sb) and the brightness (Vb) of the second conversion image, to thereby form a second conversion image.

4. The raster image three-dimensionalization processing device according to claim 1, wherein

the three-dimensionally visualized image is a red three-dimensional image in which more enhanced red color is allocated to a larger gradient value and bright color is allocated to a ridge.

5. A raster image three-dimensionalization method, comprising:

preparing;

a first storage unit configured to store DEM data;

a second storage unit configured to store a raster image of a region where the DEM data is obtained;

a display unit, and

causing a computer to perform;

(A) a step of matching a mesh size of the DEM data with a mesh size of the raster image;

(B) a step of obtaining an above-ground opening image, an underground opening image, and a slope emphasis image in which a more enhanced color is allocated for a larger gradient value, from the DEM data, and obtaining a three-dimensionally visualized image which combines these images;

(C) a step of reading a floating-sinking degree which is a parameter when the above-ground opening image and the underground opening image are obtained, and reading a gradient when the slope emphasis map is obtained;

(D) a first HSV conversion step of converting the floating-sinking degree and the gradient into brightness (Va) and saturation (Sa), respectively, while fixing hue (H) to “

0”

, and outputting a conversion result as a first conversion image;

(E) a second HSV conversion step of subjecting the raster image to HSV conversion and outputting a conversion result as a second conversion image;

(F) a step of reading the hue (H) of the second conversion image and obtaining a first color composite image which combines this hue (H) and the first conversion image; and

(G) a step of generating a second color composite image which combines the first color composite image and the second conversion image, and displaying the second color composite image on a screen of the display unit.

6. The raster image three-dimensionalization method according to claim 5, causing the computer to perform:

(H) a step of displaying, on the screen, a color adjustment value input screen causing HSV values of the first color composite image and HSV values of the second color composite image to be input;

(I) a step of setting the HSV values of the first color composite image input to the color adjustment value input screen, to the first HSV conversion step, and also setting the HSV values of the second color composite image input to the color adjustment value input screen, to the second HSV conversion step; and

(J) a step of executing the (A) to (G) steps in response to the setting.

7. The raster image three-dimensionalization method according to claim 5, causing the computer to perform:

(K) a step of generating a shading image of the DEM data; and

(L) a step of combining the shading image with the saturation (Sb) and the brightness (Vb) of the second conversion image, to thereby form a second conversion image.

8. The raster three-dimensionalization method according to claim 5, causing the computer to perform

the three-dimensionally visualized image to be a red three-dimensional image in which more enhanced red color is allocated to a larger gradient value and bright color is allocated to a ridge.