利用双目立体视觉技术从二维图象中恢复三维距离信息是立体视觉研究中的一个重要研究方向。在双目立体视觉系统中，立体匹配部分是其核心部分。该文提出了一种基于边缘特征的立体匹配方法。该方法用边缘象素作为匹配基元，利用边缘的位置、差分强度和梯度方向属性，在核心线约束和视差连续性约束下，通过迭代运算实现了立体匹配，获得了较好的匹配效果，通过对匹配结果进行三维重建表明，该方法是有效可行的 The use of binocular stereo vision technology to recover three-dimensional distance information from two-dimensional images is an important research direction in stereoscopic vision. In the binocular stereo vision system, the stereo matching part is its core part. This paper presents a stereo matching method based on edge features. The method uses the edge pixels as the matching primitives and utilizes the edge position, the difference intensity and the gradient direction property to achieve the stereo matching by the iterative operation under the constraints of the core line constraint and the disparity continuity, and obtains a good matching effect. Three-dimensional reconstruction of matching results shows that this method is effective and feasible