1. A method comprising: imaging a first cavity portion of a greater body cavity using at least one imaging sensor of a catheter to generate a first digital image; imaging a second cavity portion of the greater body cavity using the at least one imaging sensor of the catheter to generate a second digital image, wherein the first and second cavity portions are contiguous portions of the greater body cavity, and wherein first and second digital images partially overlap in an overlap portion; generating a greater image parameter of the greater body cavity from at least the first and second digital images, the generating including identifying the overlap portion in the first image, identifying the overlap portion in the second image, and using the identified overlap portion to combine the first and second images to generate the greater image parameter, wherein combining the first and second images to generate the greater image parameter includes performing an image combining operation comprising: applying a first correction factor, first scaling factor, or first calibration factor to at least part of the first digital image to create a corrected first digital image, and combining information from the corrected first digital image and the second digital image to form the greater image parameter; and generating a greater image from at least the corrected first digital image, second digital image and greater image parameter.