Image processing device, image processing program, and image processing method
An image processing device and image-in-image technology, applied in image data processing, image data processing, image enhancement, etc., can solve problems such as indistinguishable, difficult group separation, multiple error detection, etc.
Active Publication Date: 2014-01-08
OLYMPUS CORP
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Problems solved by technology
Therefore, in the case of abnormal part detection using color tone information as in Patent Document 1, there is a problem that the shape of the object such as these raised shapes or sunken shapes changes the pixel values displayed in the image, and this change makes the normal mucous membrane Separation between groups of abnormal sites becomes difficult
In addition, this pixel value change is similar to the pixel value change when an abnormal part on the object appears, so there is a problem that they cannot be distinguished
For example, in the case of using a morphological filter to extract abnormal shadows as in Patent Document 2, many false detections will occur due to various shapes of mucosal structures and lesion structures
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[0040] figure 1 It is a schematic diagram showing the overall configuration of an image processing system including the image processing device 70 of this embodiment. Such as figure 1 As shown, the image processing system has the following devices, etc.: a capsule endoscope 3 that captures images of the lumen inside the body of the subject 1 (hereinafter referred to as "intraluminal images"); a receiving device 4 that receives images from image data of the intraluminal image wirelessly transmitted by the capsule endoscope 3 ; and an image processing device 70 that performs image processing on the intraluminal image received by the receiving device 4 . In the exchange of image data between the receiving device 4 and the image processing device 70 , for example, a removable recording medium (removable recording medium) 5 is used.
[0041] The capsule endoscope 3 has an imaging function, a wireless function, an illumination function for illuminating an imaging site, and the lik...
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In an embodiment according to the present invention, an image processing apparatus (70) includes an uplift shape estimator (751), a subsidence shape estimator (752), and an abnormality candidate detector (755). The uplift shape estimator (751) and the subsidence shape estimator (752) model gradient variations of pixel values in a lumen in-vivo image according to the pixel values of the lumen in-vivo image. The abnormality candidate detector (755) detects an abnormality candidate area, which is shown in the lumen in-vivo image, according to a difference between the pixel value of each pixel constituting the lumen in-vivo lumen and an estimated pixel value of each pixel that is determined according to the modeled gradient variations of the pixel values.
Description
technical field [0001] The present invention relates to an image processing device and an image processing method for processing an image obtained by photographing an object. Background technique [0002] In recent years, medical imaging devices, represented by capsule-type endoscopes, have been developed that sequentially capture time-series intraluminal images while moving in the lumen of the body. After the capsule endoscope is ingested from the patient's mouth and introduced into the body, it moves through the lumen by means of peristalsis, sequentially captures images, sends them to a receiving device outside the body, and is finally expelled from the body. The internal images of the subject captured by the capsule endoscope and received by the receiving device outside the body are sequentially displayed in chronological order on a diagnostic workstation or the like, and are confirmed by an observer such as a doctor. [0003] This capsule endoscope takes a huge number ...
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IPC IPC(8): A61B1/00A61B1/04G06T1/00G06T7/00
CPCA61B1/041G06T2207/30021G06T2207/10068G06T2207/30028G06T7/0012
Inventor 松田岳博
Owner OLYMPUS CORP