基本信息:
- 专利标题： 用于工件尺寸测量的图像拼接方法
- 专利标题（英）：Image mosaic method for workpiece size measurement
- 申请号：CN201810714504.8 申请日：2018-07-02
- 公开(公告)号：CN109146778A 公开(公告)日：2019-01-04
- 发明人： 万俊 , 梁毅 , 施沛妍 , 洪刚 , 李志永 , 颜三钧 , 林军 , 李新科 , 王磊 , 闫忠凯
- 申请人： 广西电网有限责任公司北海供电局
- 申请人地址： 广西壮族自治区北海市海城区北部湾东路27号
- 专利权人： 广西电网有限责任公司北海供电局
- 当前专利权人： 广西电网有限责任公司北海供电局
- 当前专利权人地址： 广西壮族自治区北海市海城区北部湾东路27号
- 代理机构： 广西南宁公平知识产权代理有限公司
- 代理人： 杨立华
- 主分类号： G06T3/40
- IPC分类号： G06T3/40 ; G06T5/00 ; G06T7/33
The invention discloses an image mosaic method for measuring the size of a workpiece, which selects a checkerboard lattice calibration board with known size as a reference, and uses checkerboard lattice corner detection based on Harris algorithm to find key points (characteristic points); Random sampling consistency RANSAC algorithm is used to obtain the coordinate transformation matrix of the keypoints of the original image and the registration image to achieve precise matching. Using suture algorithm and considering the different exposure, the gray level, structure and exposure are considered together to get the best stitching thread. In a word, the invention is a method with good stability, high reliability and accurate stitching line, and the application of the invention can completeimage stitching with more effective precision, which lays a foundation for measuring the workpiece in the high-precision image in the later period.
IPC结构图谱:
| G | 物理 |
| --G06 | 计算；推算；计数 |
| ----G06T | 一般的图像数据处理或产生 |
| ------G06T3/00 | 在图像平面内的图形图像转换，例如，从位像到位像地建立一个不同图像 |
| --------G06T3/40 | .整个或部分图形的定标 |