Patent ID: 9107578
Filing Date: 2015-08-18
Classification: A61B

Abstract:
1. An imaging apparatus, comprising: a pattern projecting device configured when in use to project a pattern onto a wall of a body cavity, wherein the pattern comprises at least a first section and a second section; an illumination device configured to direct an illumination light onto the wall of the body cavity; an imaging device configured when in use and while in a first orientation directed to the first section of the pattern projected onto the wall, to acquire a first pattern image of the first section of the projected pattern and a first wall image of the wall of the body cavity under the illumination light, and when in use and while in a second orientation directed to the second section of the pattern projected onto the wall, to acquire a second pattern image of the second section of the projected pattern and a second wall image of the wall of the body cavity under the illumination light; and a processor, which switches between the pattern projecting device and the illumination device intermittently so as to toggle the pattern projecting device and the illumination device such that the imaging device acquires the first and the second pattern images during the use of the pattern projecting device and acquires the first and the second wall images during the use of the illumination light, and stitches the first wall image to the second wall image using the first pattern image and the second pattern image.