A simple method for planetary surface ruggedness estimation

The method for mapping the pixel-scale and larger ruggednesses of the Martian ridged plains within Solis Planum is described by assuming the Lommel-Seeliger's reflection law. This method allows surface tilt angles towards and away from the Sun to be estimated and topographic elevations to be displayed by the aid of monoscopic digital image data. The restrictions of this method are also discussed.