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Method and apparatus for image stitching of images captured using a capsule camera

An image and camera technology, which is used in the field of image stitching and devices for images captured by a capsule camera, and can solve problems such as occurrence and imperfection.

Active Publication Date: 2019-07-19
CAPSO VISION INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Also, although the GI tract should be well washed before taking the capsules, various objects such as food residues and air bubbles may still appear in the image
Therefore, the images captured by the capsule camera are not ideal for image models used in various image synthesis or image stitching processes

Method used

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  • Method and apparatus for image stitching of images captured using a capsule camera
  • Method and apparatus for image stitching of images captured using a capsule camera
  • Method and apparatus for image stitching of images captured using a capsule camera

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Embodiment Construction

[0018] In the following description, various aspects of the invention will be described. For purposes of explanation, specific arrangements and details are set forth in order to provide a thorough understanding of the invention. Well-known features may be omitted or simplified in order not to obscure the invention.

[0019] A review of general technical approaches to image registration and stitching can be found in Szeliski, "Image Alignment and stitching: A Tutorial", Microsoft Research Technical Report MSR-TR-2004-92, December 10, 2006.

[0020] Sequential image stitching is a process commonly used in image stitching. It takes as input several sequences of images captured by the camera and seamlessly combines them on a large canvas. This process reduces the number of image frames by mosaicing similar consecutive images into a "big picture". Therefore, it reduces the time for doctors or medical experts to check the stitched images. The input image may correspond to a pano...

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Abstract

A method and apparatus of processing images captured from human gastrointestinal (GI) tract by a capsule camera are disclosed. High frame-rate images captured from human gastrointestinal (GI) tract bya capsule camera are received for processing. The high frame-rate images comprise first images at a first spatial resolution corresponding to a regular frame rate and second images at a second spatial resolution, the first images and the second images are interleaved, and the second spatial resolution is lower than the first spatial resolution. Motion models among the high frame-rate images are derived by applying image registration to the high frame-rate images. The high frame-rate images are stitched according to the motion models to generate stitching outputs comprising stitched images andnon-stitched images. The stitching outputs are provided.

Description

[0001] Cross References to Related Applications [0002] This invention is related to PCT Patent Application Serial No. PCT / US14 / 38533, filed May 19, 2014, which claims the priority. This invention is also related to US Nonprovisional Patent Application Serial No. 14 / 675,744, filed April 1, 2015. The PCT patent application, US provisional patent application and US nonprovisional patent application are hereby incorporated by reference in their entirety. technical field [0003] The present invention relates to image stitching for images captured by a capsule camera when the capsule camera passes through the human gastrointestinal (GI) tract. In particular, the present invention relates to techniques for improving stitching efficiency to reduce the number of output images in stitching. Background technique [0004] A capsule camera is an in vivo imaging device that attempts to solve many of the problems of traditional endoscopy. The camera is housed in the swallowable caps...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B1/04
CPCA61B1/00009A61B1/041G06T2207/10016G06T2207/10068G06T2207/30092G06T7/33G06T7/246G06T3/4038G06T7/251G06T7/337G06T5/50G06T7/0014G06T2207/20221
Inventor 王康怀徐毅伍晨愉
Owner CAPSO VISION INC