1. A method of determining a length of a wear pin in a brake assembly, the method comprising: obtaining an input image of a portion of the brake assembly, wherein the input image comprises an image of the wear pin and a reference object, and wherein the reference object has a known dimension; determining, based on the input image, an image dimension of the reference object; determining, based on the input image, an image dimension of the wear pin; and determining, based on the image dimension of the reference object, the image dimension of the wear pin, and the known dimension of the reference object, an estimated measurement of the dimension of the wear pin.