IMAGE GENERATING APPARATUS FOR PAVING MACHINE AND OPERATION SUPPORT SYSTEM FOR PAVING MACHINE

• US 20150197900A1
• Filed: 03/27/2015
• Published: 07/16/2015
• Est. Priority Date: 11/08/2012
• Status: Active Grant

• Current Assignee: Sumitomo Heavy Industries Limited
• Original Assignee: Sumitomo Heavy Industries Limited
• Inventors: ICHIKAWA, Tomoko
• Granted Patent: US 9,255,364 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: E01C 19/004 Devices for guiding or controlling the machines along a predetermined path for graders or bulldozers E02F3/841; for other soil-shifting machines E02F9/2045
• CPC Class Codes: E01C 19/48 for laying-down the materials and consolidating them, or finishing the surface , e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ E01C19/002, E01C23/065 take precedence; devices for guiding or controlling the machines along a predetermined path E01C19/004
• CPC Class Codes: E01C 2301/00 Machine characteristics, parts or accessories not otherwise provided for
• CPC Class Codes: G06V 20/56 exterior to a vehicle by using sensors mounted on the vehicle

Abstract

An image generating apparatus for a paving machine, which generates an output image based on input images captured by multiple image capturing parts attached to the paving machine, includes a coordinates correlating part that correlates coordinates in a space model disposed around the paving machine with coordinates in input image planes in which the input images are positioned and an output image generating part that generates the output image by correlating the values of the coordinates in the input image planes with the values of coordinates in an output image plane in which the output image is positioned, via the coordinates in the space model. The space model includes a first plane area parallel to a road surface and a second plane area that intersects the road surface. The second plane area is set at the front end of the paving machine in a traveling direction of the paving machine.

Claims

1. An image generating apparatus for a paving machine, the image generating apparatus generating an output image based on input images captured by a plurality of image capturing parts attached to the paving machine, the image generating apparatus comprising:

a coordinates correlating part configured to correlate coordinates in a space model disposed around the paving machine with coordinates in input image planes in which the input images are positioned; and

an output image generating part configured to generate the output image by correlating values of the coordinates in the input image planes with values of coordinates in an output image plane in which the output image is positioned, via the coordinates in the space model,

wherein the space model includes a first plane area parallel to a road surface and a second plane area that intersects the road surface, and

wherein the second plane area is set at a front end of the paving machine in a traveling direction of the paving machine.

2. The image generating apparatus for a paving machine as claimed in claim 1,

wherein the coordinates correlating part further correlates coordinates in a processing object image plane in which a processing object image to be subjected to image conversion is positioned with the coordinates in the space model, and

wherein the output image generating part generates the output image by correlating the values of the coordinates in the input image planes with the values of the coordinates in the output image plane via the coordinates in the processing object image plane and the coordinates in the space model.

3. The image generating apparatus for a paving machine as claimed in claim 1,

wherein the paving machine includes a hopper part on a front side relative to the traveling direction, and

wherein the second plane area is set at a front end of the hopper part so as to be perpendicular to the road surface and perpendicular to the traveling direction.

4. The image generating apparatus for a paving machine as claimed in claim 3,

wherein the first plane area is set at a predetermined height from the road surface.

5. The image generating apparatus for a paving machine as claimed in claim 4,

wherein the paving machine includes a screed part on a rear side relative to the traveling direction, and

wherein an imaging range of the plurality of image capturing parts is a continuous area around the paving machine that includes an entirety of the hopper part and a right end and a left end of the screed part.

6. An operation support system that supports a movement or an operation of a paving machine, comprising:

the image generating apparatus for a paving machine as claimed in claim 1; and

a display part that is provided around an operation part for moving or operating the paving machine and that displays the output image generated by the image generating apparatus for a paving machine.

7. An image generating apparatus for a paving machine, the image generating apparatus generating an output image based on input images captured by a plurality of image capturing parts attached to the paving machine that includes a hopper part and a screed part, the image generating apparatus comprising:

a coordinate correlating part configured to correlate coordinates in a space model disposed around the paving machine with coordinates in input image planes in which the input images are positioned; and

an output image generating part configured to generate the output image by correlating values of the coordinates in the input image planes with values of coordinates in an output image plane in which the output image is positioned, via the coordinates in the space model,

wherein the space model includes a hopper part plane area parallel to a road surface, the hopper part plane area corresponding to a position of the hopper part and being set at a position higher than the road surface, and

wherein the output image generating part causes a size relationship between an image of the hopper part and an image of the screed part in the output image to be consistent with an actual size relationship between the hopper part and the screed part.

8. The image generating apparatus for a paving machine as claimed in claim 7,

wherein the coordinate correlating part further correlates coordinates in a processing object image plane in which a processing object image to be subjected to image conversion is positioned with the coordinates in the space model, and

wherein the output image generating part generates the output image by correlating the values of the coordinates in the input image planes with the values of the coordinates in the output image plane via the coordinates in the processing object image plane and the coordinates in the space model.

9. The image generating apparatus for a paving machine as claimed in claim 7,

wherein the space model includes a screed part plane area parallel to the road surface, the screed part plane area corresponding to a position of the screed part, and

wherein a distance from the road surface to the hopper part plane area is greater than a distance from the road surface to the screed part plane area.

10. The image generating apparatus for a paving machine as claimed in claim 9,

wherein the space model includes a connecting surface area that connects the hopper part plane area and the screed part plane area, and

wherein a distance from the road surface to the connecting surface area varies between the distance from the road surface to the hopper part plane area and the distance from the road surface to the screed part plane area.

11. The image generating apparatus for a paving machine as claimed in claim 7,

wherein the image of the screed part in the output image is displayed in an enlarged manner.

12. The image generating apparatus for a paving machine as claimed in claim 7,

wherein the space model includes another plane area set at a front end of the hopper part so as to be perpendicular to the road surface and perpendicular to a traveling direction of the paving machine.

13. The image generating apparatus for a paving machine as claimed in claim 7,

wherein an imaging range of the plurality of image capturing parts is a continuous area around the paving machine that includes an entirety of the hopper part and a right end and a left end of the screed part.

14. An operation support system that supports a movement or an operation of a paving machine, comprising:

the image generating apparatus for a paving machine as claimed in claim 7; and

a display part that is provided around an operation part for moving or operating the paving machine and that displays the output image generated by the image generating apparatus for a paving machine.