Image processing device, image processing method, and image processing program
A technique for facilitating understanding of a stereoscopic structure of an object in a 3-D image of point cloud data is provided. An image processing device includes a point cloud data display controlling unit, a marker display controlling unit, and a specified point cloud display controlling unit. The point cloud data display controlling unit displays a 3-D image of point cloud data on a screen. The marker display controlling unit displays a marker to specify a cut section of the 3-D image of the point cloud data. The specified point cloud display controlling unit displays a point cloud that constitutes the cut section among the point cloud data, as another image.
1. An image processing device comprising a processor, the processor configured to:
display points of point cloud data on a screen, the point cloud data having known three-dimensional coordinates in an XYZ coordinate system, and the displayed points forming a 3-D image;
display a marker on the screen to specify a cut section of the 3-D image in response to designation of a position of the cut section by an operator;
extract points of the point cloud data within a threshold range to the cut section in the XYZ coordinate system in response to specification of the cut section in the XYZ coordinate system by the displayed marker;
display the extracted points on the screen;
derive a plane equation relating to a plane constituting an object from which the point cloud data is obtained and calculate a normal line of the plane on a basis of the plane equation; and
display a cut-area indication marker on the screen, the cut-area indication marker showing a flat part to be cut out from the point cloud data of the 3-D image,
wherein a direction of a normal line of the flat part coincides with a direction of the normal line of the plane.
2. An image processing method comprising:
displaying points of point cloud data on a screen, the point cloud data having known three-dimensional coordinates in an XYZ coordinate system, and the displayed points forming a 3-D image;
displaying a marker on the screen to specify a cut section of the 3-D image in response to designation of a position of the cut section by an operator;
extracting points of the point cloud data within a threshold range to the cut section in the XYZ coordinate system in response to specification of the cut section in the XYZ coordinate system by the displayed marker;
displaying the extracted points on the screen;
deriving a plane equation relating to a plane constituting an object from which the point cloud data is obtained and calculating a normal line of the plane on a basis of the plane equation; and
displaying a cut-area indication marker on the screen, the cut-area indication marker showing a flat part to be cut out from the point cloud data of the 3-D image,
wherein a direction of a normal line of the flat part coincides with a direction of the calculated normal line of the plane.
3. A non-transitory computer recording medium storing computer executable instructions that, when executed by a computer processor, cause the computer processor to:
display points of point cloud data on a screen, the point cloud data having known three-dimensional coordinates in an XYZ coordinate system, and the displayed points forming a 3-D image;
display a marker on the screen to specify a cut section of the 3-D image in response to designation of a position of the cut section by an operator;
extract points of the point cloud data within a threshold range to the cut section in the XYZ coordinate system in response to specification of the cut section in the XYZ coordinate system by the displayed marker;
display the extracted points on the screen;
derive a plane equation relating to a plane constituting an object from which the point cloud data is obtained and calculate a normal line of the plane on a basis of the plane equation; and
display a cut-area indication marker on the screen, the cut-area indication marker showing a flat part to be cut out from the point cloud data of the 3-D image,
wherein a direction of a normal line of the flat part coincides with a direction of the calculated normal line of the plane.
4. An image processing device comprising a processor, the processor configured to:
display points of point cloud data on a screen, the point cloud data having known three-dimensional coordinates in an XYZ coordinate system, and the displayed points forming a 3-D image;
derive a plane equation relating to a plane constituting an object from which the point cloud data is obtained and calculate a normal line of the plane on a basis of the plane equation; and
display a cut-area indication marker on the screen, the cut-area indication marker showing a flat part to be cut out from the point cloud data of the 3-D image,
wherein a direction of a normal line of the flat part coincides with a direction of the normal line of the plane.