Patent ID: 9107569
Filing Date: 2015-08-18
Classification: A61B,G06T

Abstract:
1. A medical instrument comprising: an optical examination system for acquiring a cervical image; a processor for controlling the medical instrument; a memory containing machine executable instructions for execution by the processor, wherein execution of the instructions causes the processor to: wherein execution of the instructions further causes the processor to: acquire a second cervical image using the optical examination system; calculate a second set of interest point locations using the digital filter; calculate a second filtered set of interest point locations using the second set of interest point locations and the morphological filter; calculate a second reduced set of interest points locations using the second filtered set of interest point locations and the neighborhood based filter; calculate a second classified set of interest point locations using the trained classification module and the second reduced set of interest points; and calculate a second set of punctation locations using the second neighborhood based filter and the second classified set of interest point locations, wherein the punctation mark regions using the punctation point locations and the second punctation point locations; register the cervical image and the second cervical image using an image registration module; acquire the first cervical image and the second cervical image by acquiring video data comprising multiple image frames; select the first cervical image and the second cervical image from the multiple image frames; receive the video data comprising multiple image frames; determine a transformation model between each pair of consecutive image frames selected from the multiple image frames; calculate a cumulative transformation model from the transformation model between each pair of consecutive image frames; register each of the multiple image frames using the cumulative transformation model; and provide the registration of the first cervical image and the second cervical image using the cumulative transformation model.