To realize the function of size and direction independent detection, a quasi-circular object recognition algorithm was put forth in this study by taking advantage of the similarity among the polar contour coordinates.
进一步利用轮廓极坐标曲线的相似性,提出基于轮廓边缘的类圆形识别算法,实现大小、旋转无关的物体检测。
参考来源 - 基于机器视觉的分钢关键技术研究及其应用·2,447,543篇论文数据，部分数据来源于NoteExpress
内镜下形态以纵行条状粗大皱襞多见，弧形、类圆形次之。
The frequent HGF morphology was longitudinal institia shaped, half-moon and unrepresentative round.
结果右颞叶类圆形高密度肿块，周边有水肿带，均无强化。
Results: a analogous round mass with high density was surrounded with edema zone in the right temporal lobe.
Gliese 581周围的行星拥有同太阳系的行星一样类圆形轨道。
Like our solar system, the planets around Gliese 581 have nearly-circular orbits.
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