Image processing device, image processing program and image processing method

An image processing device, comprising:

• an imaging device movement amount estimating unit that processes time-series intraluminal images captured by an imaging device moving in an in-vivo lumen and estimates a movement amount of the imaging device.

An image processing program that, when executed by a computer, causes the computer to perform:

• an imaging device movement amount estimating process that processes time-series intraluminal images captured by an imaging device moving in an in-vivo lumen to estimate a movement amount of the imaging device;
• and
• a position estimating process that accumulates a plurality of values of the movement amount estimated by processing a plurality of the intraluminal images by the imaging device movement amount estimating process, thereby estimating a position of the imaging device in the lumen at each time when capturing each intraluminal image.

An image processing method, comprising:

• an imaging device movement amount estimating step that processes time-series intraluminal images captured by an imaging device moving in an in-vivo lumen to estimate a movement amount of the imaging device;
• and
• a position estimating step that accumulates a plurality of values of the movement amount estimated by processing a plurality of the intraluminal images by the imaging device movement amount estimating step, thereby estimating a position of the imaging device in the lumen at each time when capturing each intraluminal image.

An image processing device for analyzing images of a row of images captured in time series by a moving imaging device, the image processing device comprising:

• a movement amount calculating unit that calculates a positional displacement of an object on an image area using correlation between images, and calculates a movement amount the imaging device moves between captures of the images based on the positional displacement;
• and
• a distance calculating unit that calculates a movement distance of the imaging device by accumulating and adding the movement amounts.

An image processing program that, when executed by a computer for analyzing images of a row of images captured in time series by a moving imaging device, causes the computer to perform:

• a movement amount calculating process that calculates a positional displacement of an object on an image area using correlation between images, and calculates a movement amount the imaging device moves between captures of the images based on the positional displacement;
• and
• a distance calculating process that calculates a movement distance of the imaging device by accumulating and adding the movement amounts.

An image processing method for analyzing images of a row of images captured in time series by a moving imaging device, the method comprising:

• a movement amount calculating step that calculates a positional displacement of an object on an image area using correlation between images, and calculates a movement amount the imaging device moves between captures of the images based on the positional displacement;
• and
• a distance calculating step that calculates a movement distance of the imaging device by accumulating and adding the movement amounts.