Abstract: Disclosed herein are workstation, medical imaging apparatus having the same and method for controlling thereof. The medical imaging apparatus includes an X-ray source configured to irradiate X-rays; an X-ray detector configured to obtain raw data by detecting X-rays irradiated from the X-ray source; and an image processor configured to determine a motion parameter to represent motion of at least one of an object, the X-ray source, and the X-ray detector from a medical image reconstructed based on the obtained raw data, and reconstruct a motion-compensated medical image of the object based on a virtual trajectory of the X-ray source generated based on the determined motion parameter.

Abstract: Sensor coupled to the ultrasound probe provides position information related to an ultrasound imaging position in the object. A processor performs first registration between the medical image and the ultrasound image based on the anatomical feature in the ultrasound image and a medical image of the object acquired by imaging modality different from the ultrasound apparatus, obtains first registration information which provides a relationship between a coordinate system of the medical image and a coordinate system of the ultrasound image based on the first registration, performs second registration between the sensor and the medical image based on the position information and the first registration information, and obtains second registration information based on the second registration. A display displays a portion of the medical image corresponding to the ultrasound imaging position based on the second registration information. The medical image includes one among SPECT, PET, MR, PET-CT, and PET-MR image.

Abstract: The present invention relates to a method for motion compensation and state-of-motion specific attenuation correction of positron tomography images by using a small number of low-radiation-dose computer tomography images.

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 method of medical image registration includes obtaining a first medical image generated before a medical surgery; obtaining a second medical image generated in real time during the medical surgery; extracting landmark points of at least two adjacent anatomical objects recognizable in the second medical image among a plurality of anatomical objects near an organ of interest of a patient from the first medical image and the second medical image; and registering the first medical image and the second medical image based on a geometrical correlation among the adjacent anatomical objects indicated by the landmark points of the first medical image and a geometrical correlation among the adjacent anatomical objects indicated by the landmark points of the second medical image.

Abstract: Sensor coupled to the ultrasound probe provides position information related to an ultrasound imaging position in the object. A processor performs first registration between the medical image and the ultrasound image based on the anatomical feature in the ultrasound image and a medical image of the object acquired by imaging modality different from the ultrasound apparatus, obtains first registration information which provides a relationship between a coordinate system of the medical image and a coordinate system of the ultrasound image based on the first registration, performs second registration between the sensor and the medical image based on the position information and the first registration information, and obtains second registration information based on the second registration. A display may display a portion of the medical image corresponding to the ultrasound imaging position based on the second registration information. The medical image includes one of SPECT, PET, MR, PET-CT, and PET-MR image.

Abstract: A medical imaging apparatus includes an ultrasound probe to transmit and receive an ultrasound signal to obtain an ultrasound image of an object; a sensor coupled to the ultrasound probe to provide a position information related to an ultrasound imaging position in the object; and a processor to extract a certain anatomical feature from the ultrasound image and the certain anatomical feature from a medical image of the object acquired by an imaging modality different from an ultrasound apparatus, perform a first registration between the medical image and the ultrasound image based on the certain anatomical feature, perform a second registration between the sensor and the medical image based on the position information and the first registration, and control a display to display a portion of the medical image corresponding to the ultrasound imaging position based on the second registration.

Abstract: A method of coding a moving picture is provided that reduces blocking artifacts. The method can include defining a plurality of defining pixels S0, S1, and S2, which are centered around a block boundary. If a default mode is selected then frequency information of the surroundings of the block boundary is obtained. A magnitude of a discontinuous component in a frequency domain belonging to the block boundary is adjusted based on a magnitude of a corresponding discontinuous component selected from a pixel contained entirely within a block adjacent the block boundary. The frequency domain adjustment is then applied to a spatial domain. Or, a DC offset mode can be selected to reduce blocking artifacts in smooth regions where there is little motion.

Abstract: An image-based super-resolution method using a cone-beam-based line-of-response (LOR) reconfiguration in a positron emission tomography (PET) image is provided. That is, an apparatus and method for reconfiguring a super-resolution PET image using a cone-beam-based LOR reconfiguration is provided.

Abstract: Sensor coupled to the ultrasound probe provides position information related to an ultrasound imaging position in the object. A processor performs first registration between the medical image and the ultrasound image based on the anatomical feature in the ultrasound image and a medical image of the object acquired by imaging modality different from the ultrasound apparatus, obtains first registration information which provides a relationship between a coordinate system of the medical image and a coordinate system of the ultrasound image based on the first registration, performs second registration between the sensor and the medical image based on the position information and the first registration information, and obtains second registration information based on the second registration. A display may display a portion of the medical image corresponding to the ultrasound imaging position based on the second registration information.

Abstract: A method of coding a moving picture is provided that reduces blocking artifacts. The method can include defining a plurality of defining pixels S0, S1, and S2, which are centered around a block boundary. If a default mode is selected then frequency information of the surroundings of the block boundary is obtained. A magnitude of a discontinuous component in a frequency domain belonging to the block boundary is adjusted based on a magnitude of a corresponding discontinuous component selected from a pixel contained entirely within a block adjacent the block boundary. The frequency domain adjustment is then applied to a spatial domain. Or, a DC offset mode can be selected to reduce blocking artifacts in smooth regions where there is little motion.

Abstract: A method of reconstructing a tomography image and a tomography apparatus configured to reconstruct a tomography image are provided. Tomography data corresponding to a moving object is acquired by performing a tomography scan on the object, and a tomography image is reconstructed using prior images obtained based on the acquired tomography data.

Abstract: An image-based super-resolution method using a cone-beam-based line-of-response (LOR) reconfiguration in a positron emission tomography (PET) image is provided. That is, an apparatus and method for reconfiguring a super-resolution PET image using a cone-beam-based LOR reconfiguration is provided.

Abstract: A magnetic resonance imaging (MRI) apparatus and an MRI method are provided. The MRI apparatus includes a data acquisition unit configured to acquire a first image by performing an MRI scan on an object. The MRI apparatus further includes an image acquisition unit configured to acquire a second image by performing de-noising filtering on the first image in a spatial domain, acquire a third image based on the first image and the second image, acquire a fourth image by performing low-pass filtering on the third image in a frequency domain, and acquire a final image based on the second image and the fourth image.

Abstract: An image-based super-resolution method using a cone-beam-based line-of-response (LOR) reconfiguration in a positron emission tomography (PET) image is provided. That is, an apparatus and method for reconfiguring a super-resolution PET image using a cone-beam-based LOR reconfiguration is provided.

Abstract: Embodiments for providing a 2-dimensional (D) computerized-tomography (CT) image corresponding to a 2-D ultrasound image through image registration between 3-D ultrasound and CT images are disclosed. An imaging system comprises a CT imaging unit, an ultrasound image forming unit, a storing unit, a processor and a display unit. The processor extracts the 2-D CT image from the 3-D ultrasound-CT registered image by performing a rigid-body transform upon the 3-D ultrasound image and calculating similarities between reference images and the 2-D ultrasound images, wherein the reference images are obtained through the rigid-body transform.

Abstract: There is disclosed an embodiment for performing a calibration of a sensor by using an image registration between a three-dimensional ultrasound image and computerized tomography (CT) image. An ultrasound image forming unit includes an ultrasound probe and forms a three-dimensional ultrasound image of a target object. A sensor is coupled to the ultrasound probe. A memory stores a three-dimensional computed tomography (CT) image of the target object and position information on a position between the three-dimensional ultrasound image and the sensor. A processor performs image registration between the three-dimensional CT image and the three-dimensional ultrasound image to form a first transformation function for transforming a position of the sensor to a corresponding position on the three-dimensional CT image and performs calibration of the sensor by applying the position information to the first transformation function.

Abstract: A medical image registration method and apparatus are described. By performance of a medical image registration method, a highly accurate registered image, in which breathing deformation information is considered, may be obtained by generation of non-real-time medical images in which the breathing deformation information is reflected before a medical procedure is conducted and by rigid registration of a real-time medical image and the generated non-real-time medical images during the medical procedure.

Abstract: A tomography apparatus includes a data acquirer acquiring a first image and a second image that are partial images, by using data acquired in a first angular section corresponding to a first time point and a second angular section corresponding to a second time and facing the first angular section, by performing a tomography scan on an object that is moving, and acquiring first information indicating a motion amount of the object by using the first image and the second image, and an image reconstructor reconstructing a target image indicating the object at a target time, based on the first information.

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.