“…With the rapid development of image processing technology, imagebased measurement methods have advanced substantially, such as depth images obtained with a depth camera [10,11], point cloud images [12], and RGB images obtained from a single camera, etc. In these methods, RGB images are the most convenient way to acquire images, which utilized a single camera and relied on the user or the device to rotate to acquire images from different viewpoints [11]. Some professional RGB imagebased postural assessment equipment has already emerged, such as GPS600 from Chinesport, Italy [13,14] and PA200LE from BigSports, Japan [15].…”