Method of processing image and image processing apparatus using the method
AssigneeSamsung Electronics Co., Ltd.
InventorsKi-won Sohn, Hae-kyung Jung, Young-yoon Lee
Life of this patent
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Abstract
A method of processing an image so as to correctly and better extract an image of a lung region, the method including operations of extracting a trachea region_image by using pixel values in a predetermined region of a radiographic image, adjusting pixel values corresponding to the trachea region in the radiographic image, extracting the lung region image from the radiographic image in which the pixel values of the trachea region image have been adjusted, and smoothing outer boundaries of the lung region image.
Claims23
A method of processing an image, the method comprising:
- receiving an image captured by irradiating radiation to a chest;
- extracting an image of a trachea region based on pixel values in a predetermined region of the image, and adjusting pixel values corresponding to the trachea region in the image;
- generating an image of the trachea region based on the adjusted pixel values;
- and
- extracting an image of a lung region from the generated image of the trachea region.
An image processing apparatus comprising:
- an image input unit which receives an image captured by irradiating radiation to a chest;
- and
- an image processing unit which extracts an image of a trachea region based on pixel values in a predetermined region of the image, and adjusts pixel values corresponding to the trachea region in the image, and extracts a lung region image from the adjusted pixel values corresponding to the trachea region.
A method of processing an image, the method comprising:
- receiving a radiation chest image;
- setting a predetermined region in the radiation chest image;
- determining an image of the trachea in the predetermined region, the determining comprising determining one boundary of the image of the trachea based on one from among i) a rate of change of pixel values along a linear direction with respect to a first threshold value and ii) a change in the rate of change of pixel values along the linear direction with respect to a second threshold value;
- adjusting pixel values of the image of the trachea to generate an adjusted image of the trachea;
- and
- determining an image of the lung based on the image of the trachea,
- wherein the determining the image of the lung comprises applying a geometric active contour model.
Dependencies are inferred from the claim text.