CLX-34: Cervical lateral X-ray 34-point dataset

A landmark comprising 34 keypoints for lateral X-ray images of the cervical spine has been proposed. This benchmark allows for the calculation of cervical curvature using various methods, including Harrison, Ishihara, C2-C7 Cobb, and C2 slope. Landmarks represent the geometric parameters associated with 4 measurement sub-method. In addition to the C1-C7 range selected within the box, the proposal suggests marking specific points on C2, including two on the upper and lower ends of the trailing edge (C2_1, C2_2), and two on the back and front ends of the lower edge (C2_3, C2_4). For C3-C7, a set of points is proposed, including two at the anterior and posterior ends of the upper edge, two at the upper and lower ends of the posterior edge, and two at the posterior and anterior ends of the lower edge (e.g., C3_1, C3_2, C3_3, C3_4, C3_5, C3_6). In total, 34 points are marked. The annotation file for each image is stored in .json format.