A Case Comparison of Single-Image Photogrammetry Methods

Analytical reverse projection is introduced and is shown to offer an improvement in applicability and accuracy over other techniques of single-image photogrammetry, including plane-to-plane transformation and camera reverse-projection methods. A comparison of the methods is made on the basis of a single case of reconstructing missing tire tracks on a roadway intersection. Advantages and disadvantages of each method are discussed.

THIS PAPER REVIEWS non-graphical techniques used to make measurements of features imaged in a single photograph. Two formulations of the plane-to-plane transformation method are re viewed, the camera reverse-projection technique is presented, and a third technique, called the analytical reverse-projection method, is introduced.

Following a review of the various methods, including an indication of their advantages and disadvantages, each method is applied to the problem of relocating a set of tire tracks in an intersection. The results of each method are compared to one another and to the actual tracks.