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一、引言 云纹成像是利用平行光通过条纹光栅在物体表面形成变形光栅影像、由变形影像与基准光栅相互重叠形成干涉产生云纹等高线图像,可精确测定物体表面的形态变化。以往该项技术多用于工业领域,近年来扩展到医学领域。该方法具有快速、简便、易识别,无损伤,成本低廉的优点,用于临床检查可与X光片检查具有互补作用,可弥补X光对软组织和人体轮廓改变识别不足的缺点。特别适用于我国基层医疗单位,如中医正骨门诊和脊柱外科对腰背部疾患的诊断及治疗前后的疗效评定。也可用于征兵、招工中的腰背部检查及青少年脊柱发育状况的普查。
I. INTRODUCTION Moire imaging is the use of parallel light through the grating to form a deformed grating image on the surface of the object. The deformed image and the reference grating overlap each other to form a moire contour image, which can accurately measure the morphological changes of the object surface. In the past the technology used in industrial fields, in recent years extended to the medical field. The method has the advantages of quickness, simplicity, easy identification, no damage and low cost. The method has the advantages of being complementary to the X-ray examination for clinical examination and can make up for the defect that the X-ray can not recognize the change of the soft tissue and the human body contour. Especially suitable for primary medical units in China, such as orthopedic clinic and spine surgery in the diagnosis of lumbar and back disease and curative effect evaluation before and after treatment. Can also be used for conscription, recruiting in the back and back examination and young spine development status survey.