发明名称 |
Three-Dimensional Image Processing Apparatus, Three-Dimensional Image Processing Method, Three-Dimensional Image Processing Program, Computer-Readable Recording Medium, And Recording Device |
摘要 |
A three-dimensional image processing apparatus includes: a distance image generating part capable of generating a distance image based on a plurality of images captured in an image capturing part; a pattern generating part for generating a first projection pattern and a second projection pattern whose fringe direction is different from that of the first projection pattern as a plurality of projection patterns obtained by changing a fringe direction of a projection pattern; and an incorrect-height determining part for making comparison in height information of a corresponding portion of an inspection target between a first distance image, generated in the distance image generating part based on a first pattern projected image, and a second distance image, generated based on a second pattern projected image, to determine height information of a portion where a difference not smaller than a predetermined value has occurred as incorrect. |
申请公布号 |
US2015109423(A1) |
申请公布日期 |
2015.04.23 |
申请号 |
US201414459338 |
申请日期 |
2014.08.14 |
申请人 |
Keyence Corporation |
发明人 |
Shimodaira Masato |
分类号 |
H04N13/02;H04N13/00 |
主分类号 |
H04N13/02 |
代理机构 |
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代理人 |
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主权项 |
1. A three-dimensional image processing apparatus which is capable of acquiring a distance image that includes height information of an inspection target and also performing image processing based on the distance image, the apparatus comprising:
a light projecting part for projecting incident light as structured illumination of a predetermined fringe-like projection pattern from an oblique direction with respect to an optical axis of a below-described image capturing part; the image capturing part for acquiring reflected light that is projected by the light projecting part and reflected on an inspection target, to capture a plurality of pattern projected images; a distance image generating part capable of generating a distance image based on the plurality of images captured in the image capturing part; a pattern generating part for generating a first projection pattern and a second projection pattern whose fringe direction is different from that of the first projection pattern as a plurality of projection patterns obtained by changing a fringe direction of the projection pattern; and an incorrect-height determining part for making comparison in height information of a corresponding portion of the inspection target between a first distance image, generated in the distance image generating part based on a first pattern projected image obtained by projecting from the light-projecting part the first projection pattern generated in the pattern generating part and capturing an image of the first projection pattern in the image capturing part, and a second distance image, generated based on a second pattern projected image obtained by the second projection pattern projected from the common light projecting part, to determine height information of a portion where a difference not smaller than a predetermined value occurs as incorrect. |
地址 |
Osaka JP |