Abstract: A tomography method for generating a computed tomography (CT) image, including generating a first tomography image based on first raw data corresponding to a received X-ray comprising acquired photons; determining second raw data by generating a second tomography image having an increased resolution in comparison with the first tomography image and performing forward projection on the second tomography image; determining third raw data based on a first parameter, the first raw data, and the second raw data; and generating a third tomography image based on the third raw data, wherein the determining of the third raw data may be based on information about a distribution of the acquired photons, the information being included in at least one from among the first raw data and the second raw data.

Abstract: Provided are a tomography apparatus and a method for reconstructing a tomography image. The method includes obtaining a plurality of raw data corresponding to a plurality of views by performing a tomography scan on an object and deblurring each of the plurality of raw data based on a point spread function (PSF) that varies according to locations in a field of view (FOV) in a gantry. The method also includes reconstructing a final tomography image in which a motion of the object is corrected from the plurality of deblurred raw data based on a motion vector indicating the motion of the object.

Abstract: Provided is a medical image processing apparatus and method. The medical image processing apparatus includes: an image processor configured to extract a blood vessel area and at least one contour line of the blood vessel area from a first image representing the blood vessel area, and to obtain a second image representing an area of at least one plaque based on the blood vessel area and the at least one contour line; a display configured to display the second image; and a user interface configured to receive a user input for correcting at least one contour line corresponding to at least one of the at least one plaque represented in the second image, wherein the image processor corrects the second image based on the user input. The medical image processing apparatus may precisely visualize a contour line of the blood vessel area.

Abstract: A tomography apparatus includes an image processor configured to obtain a first image, which is a partial image of an object, by using data obtained from a first angle section corresponding to a first point, and to obtain a second image, which is a partial image of the object, by using data obtained from a second angle section corresponding to a second point subsequent to the first point; and a controller configured to obtain first information representing a brightness change, to obtain second information representing a rate of change in a Hounsfield unit (HU) value between the first point and the second point based on the first information, and to determine a tomography start point of the object based on the second information.

Abstract: An apparatus and a method of processing a medical image are provided. The apparatus is configured to generate a cross-sectional image of an object by transmitting X-rays through a region of the object, and includes an X-ray generator configured to generate the X-rays. The apparatus further includes a controller configured to determine sub-regions included in the region, based on positions of body parts included in the region, determine image qualities of the sub-regions based on types of the body parts included in the sub-regions, control doses of the X-rays based on the image qualities, and control the X-ray generator to transmit the controlled X-rays to the region.

Abstract: A tomography apparatus is provided that include a controller configured to acquire a point spread function (PSF) map representing a PSF that varies according to a position in a field of view (FOV) created within a gantry, and an image processor configured to acquire a final tomography image by deblurring a tomography image based on the acquired PSF map.

Abstract: A tomography apparatus includes a data acquirer configured to obtain a first partial image and a second partial image of an object based on data that is obtained respectively at a first angular section corresponding to a first time and at a second angular section corresponding to a second time during a tomography scan of the object that is moving, a controller configured to determine first information indicating a motion amount of the object in a first area of an entire image based on the first partial image and the second partial image, and determine second information indicating a degree of blur of a point included in the object in the first area based on the first information, and an image processor configured to correct the first area based on the first information and the second information, and output a tomography image based on the corrected first area.

Abstract: Provided are an ultrasound image processing method and an ultrasound image processing apparatus. The ultrasound image processing apparatus includes: an ultrasonic probe configured to acquire ultrasound image data with respect to an object by transmitting ultrasound waves to the object; at least one processor configured to generate at least one ultrasound image based on the ultrasound image data, configured to determine, based on the at least one ultrasound image, whether at least one target region included in an imaging list has been imaged, and generate first imaging status information indicating whether the at least one target region has been imaged; and a display configured to display the first imaging status information.

Abstract: Provided are a tomography apparatus and a method for reconstructing a tomography image. The method includes obtaining a plurality of raw data corresponding to a plurality of views by performing a tomography scan on an object and deblurring each of the plurality of raw data based on a point spread function (PSF) that varies according to locations in a field of view (FOV) in a gantry. The method also includes reconstructing a final tomography image in which a motion of the object is corrected from the plurality of deblurred raw data based on a motion vector indicating the motion of the object.

Abstract: A tomography method for generating a computed tomography (CT) image, including generating a first tomography image based on first raw data corresponding to a received X-ray comprising acquired photons; determining second raw data by generating a second tomography image having an increased resolution in comparison with the first tomography image and performing forward projection on the second tomography image; determining third raw data based on a first parameter, the first raw data, and the second raw data; and generating a third tomography image based on the third raw data, wherein the determining of the third raw data may be based on information about a distribution of the acquired photons, the information being included in at least one from among the first raw data and the second raw data.

Abstract: A tomography apparatus includes an image processor configured to reconstruct a tomography image by using pieces of image data that are acquired during partial periods included in a heartbeat period; and a display configured to display a screen image, which includes information representing the heartbeat period, and the reconstructed tomography image, and on which the partial periods and image sections corresponding to the partial periods are displayed in association with each other.

Abstract: A tomography apparatus includes a data acquirer which acquires a first image which corresponds to a first time point and a second image which corresponds to a second time point by performing a tomography scan on an object; an image reconstructor which acquires first information which relates to a relationship between a motion amount of the object and the time based on a motion amount between the first image and the second image, predicts a third image which corresponds to a third time point between the first and second time points based on the first information, corrects the first information by using the predicted third image and measured data which corresponds to the third time point, and reconstructs the third image by using the corrected first information; and a display which displays the reconstructed third image.

Abstract: Provided is a medical image processing apparatus and method. The medical image processing apparatus includes: an image processor configured to extract a blood vessel area and at least one contour line of the blood vessel area from a first image representing the blood vessel area, and to obtain a second image representing an area of at least one plaque based on the blood vessel area and the at least one contour line; a display configured to display the second image; and a user interface configured to receive a user input for correcting at least one contour line corresponding to at least one of the at least one plaque represented in the second image, wherein the image processor corrects the second image based on the user input. The medical image processing apparatus may precisely visualize a contour line of the blood vessel area.

Abstract: A tomography apparatus includes an image processor configured to obtain a first image, which is a partial image of an object, by using data obtained from a first angle section corresponding to a first point, and to obtain a second image, which is a partial image of the object, by using data obtained from a second angle section corresponding to a second point subsequent to the first point; and a controller configured to obtain first information representing a brightness change, to obtain second information representing a rate of change in a Hounsfield unit (HU) value between the first point and the second point based on the first information, and to determine a tomography start point of the object based on the second information.

Abstract: A tomography apparatus includes a data acquirer configured to obtain a first partial image and a second partial image of an object based on data that is obtained respectively at a first angular section corresponding to a first time and at a second angular section corresponding to a second time during a tomography scan of the object that is moving, a controller configured to determine first information indicating a motion amount of the object in a first area of an entire image based on the first partial image and the second partial image, and determine second information indicating a degree of blur of a point included in the object in the first area based on the first information, and an image processor configured to correct the first area based on the first information and the second information, and output a tomography image based on the corrected first area.

Abstract: An apparatus and a method of processing a medical image are provided. The apparatus is configured to generate a cross-sectional image of an object by transmitting X-rays through a region of the object, and includes an X-ray generator configured to generate the X-rays. The apparatus further includes a controller configured to determine sub-regions included in the region, based on positions of body parts included in the region, determine image qualities of the sub-regions based on types of the body parts included in the sub-regions, control doses of the X-rays based on the image qualities, and control the X-ray generator to transmit the controlled X-rays to the region.

Abstract: A tomography apparatus includes a data acquirer which acquires a first image which corresponds to a first time point and a second image which corresponds to a second time point by performing a tomography scan on an object; an image reconstructor which acquires first information which relates to a relationship between a motion amount of the object and the time based on a motion amount between the first image and the second image, predicts a third image which corresponds to a third time point between the first and second time points based on the first information, corrects the first information by using the predicted third image and measured data which corresponds to the third time point, and reconstructs the third image by using the corrected first information; and a display which displays the reconstructed third image.

Abstract: A tomography apparatus includes an image processor configured to reconstruct a tomography image by using pieces of image data that are acquired during partial periods included in a heartbeat period; and a display configured to display a screen image, which includes information representing the heartbeat period, and the reconstructed tomography image, and on which the partial periods and image sections corresponding to the partial periods are displayed in association with each other.

Abstract: A de-skew method of an image forming apparatus is provided which includes reading an image on a print medium fed through an automatic document feeder (ADF); detecting a leading edge of the print medium and calculating a skew angle of the read image; comparing the calculated skew angle to a first threshold and determining whether to perform a de-skew operation; and setting skew compensation levels based on the calculated skew angle and performing different de-skew operations according to the set skew compensation levels to output a de-skewed image when the absolute value of the calculated skew angle is equal to or greater than the first threshold.

Abstract: A scanner, an image forming apparatus and a motor control method of the scanner and the image forming apparatus. The motor control method includes scanning a test image formed on a document, calculating an actual speed of a scan head moved by the motor using the scanned test image, calculating a matrix representing a relation between a driving signal to drive the motor and the calculated actual speed of the scan head, and renewing the driving signal using an inverse matrix to the calculated matrix to correct the actual speed of the scan head.