Patent ID: 7940973
Filing Date: 2011-05-10
Classification: A61B,H04N

Abstract:
1. A method for capsule camera control, the method comprising: (a) providing a light source with a first light source control to illuminate lumen walls; (b) receiving image data from an image sensor of a capsule camera to derive a first frame; (c) evaluating a motion metric, associated with the first frame and a previously captured frame, based on motion vectors, SAD, MSE, count of pixels having large differences OR count of zero-valued motion vectors; (d) selecting an operation mode for next image data from a group comprising Capture Mode and Conservation Mode based on a profile of the motion metric, wherein the Capture Mode is selected if the profile indicates an amount of motion between the first frame and the previously captured frame exceeding a threshold and the Conservation Mode is selected otherwise; (e) adjusting a luminous energy emitted by the light source to cause the light source to emit less luminous energy if the Conservation Mode is selected than if the Capture Mode is selected; (f) storing a full-sized and full-resolution frame if the mode is the Capture Mode; and wherein steps (a) through (f) are performed inside a capsule camera.