摘要:
An image processing apparatus is provided, including a brightness change level classifying unit, a dynamic weight calculating unit, and a brightness correcting unit. The brightness change level classifying unit compares a brightness change average value representing brightness changes from a pixel of interest to neighboring pixels around the pixel of interest with an upper threshold value and a lower threshold value and classifies the brightness change level of the pixel of interest into three types of levels according to the result of the comparison. An upper threshold value and a lower threshold value are predetermined based on the brightness of the pixel of interest. The dynamic weight calculating unit calculates different dynamic weights according to the brightness change level of the pixel of interest. The brightness correcting unit corrects the brightness of the pixel of interest, based on the dynamic weights. Accordingly, noise generated on a plane part of an image is minimized and a contour of the image is appropriately emphasized, consequently improving the definition of images.
摘要:
An image processing apparatus according to the present invention comprises an object area extracting unit for extracting an object area including an object pixel and pixels adjacent to the object pixel from a bayer pattern image; a fault pixel judging unit for determining if the object pixel is a fault pixel based on levels of the adjacent pixels and a fault pixel judgment standard range that varies according to a level of the object pixel; and a fault pixel correcting unit for correcting the level of the object pixel determined to be a fault pixel based on a level average value of the adjacent pixels and a fault pixel correction standard range that varies according to the level average value of the adjacent pixels.Therefore, the present invention can remove a hot pixel and noise effectively.
摘要:
The present invention relates to treating an inter-vertebral disc, in particular, to a method of treating an inter-vertebral disc by effectively ablating a tissue within a disc, in which herniation of nucleus pulposus occurs.A method of treating an inter-vertebral disc according to one embodiment of the present invention relates to treatment using a guidable electrode to be inserted into an inter-vertebral disc of a patient, in which the treatment comprises a step of inserting a front end of a needle unit from the outside of annulus fibrosus into the inside of the annulus fibrosus, a step of inserting a guidable electrode through the rear of the needle unit, a step of adjusting position of the end of the electrode to be adjacent to a target tissue within the annulus fibrosus, and a step of ablating a tissue within nucleus pulposus by applying electrical energy to the electrode.
摘要:
An image processing apparatus according to the present invention comprises an object area extracting unit for extracting an object area including an object pixel and pixels adjacent to the object pixel from a bayer pattern image; a fault pixel judging unit for determining if the object pixel is a fault pixel based on levels of the adjacent pixels and a fault pixel judgment standard range that varies according to a level of the object pixel; and a fault pixel correcting unit for correcting the level of the object pixel determined to be a fault pixel based on a level average value of the adjacent pixels and a fault pixel correction standard range that varies according to the level average value of the adjacent pixels.Therefore, the present invention can remove a hot pixel and noise effectively.
摘要:
Provided is an apparatus and method for processing an image which can correct image distortion caused by hand shake. The apparatus includes: a reference image acquiring unit for acquiring a first and a second reference images by using different shutter times and international standard organization (ISO) values; and a color information correcting unit for correcting color information of an input image, which is obtained by using a shutter time that is shorter of the shutter times used to acquire the first and the second reference images, based on a brightness ratio and a chrominance ratio of the first and second reference images. Accordingly, image distortion caused by hand shake can be corrected.
摘要:
Provided is an apparatus and method for processing an image which can correct image distortion caused by hand shake. The apparatus includes: a reference image acquiring unit for acquiring a first and a second reference images by using different shutter times and international standard organization (ISO) values; and a color information correcting unit for correcting color information of an input image, which is obtained by using a shutter time that is shorter of the shutter times used to acquire the first and the second reference images, based on a brightness ratio and a chrominance ratio of the first and second reference images. Accordingly, image distortion caused by hand shake can be corrected.
摘要:
An image processing apparatus is provided, including a brightness change level classifying unit, a dynamic weight calculating unit, and a brightness correcting unit. The brightness change level classifying unit compares a brightness change average value representing brightness changes from a pixel of interest to neighboring pixels around the pixel of interest with an upper threshold value and a lower threshold value and classifies the brightness change level of the pixel of interest into three types of levels according to the result of the comparison. An upper threshold value and a lower threshold value are predetermined based on the brightness of the pixel of interest. The dynamic weight calculating unit calculates different dynamic weights according to the brightness change level of the pixel of interest. The brightness correcting unit corrects the brightness of the pixel of interest, based on the dynamic weights. Accordingly, noise generated on a plane part of an image is minimized and a contour of the image is appropriately emphasized, consequently improving the definition of images.
摘要:
Disclosed is a direction controllable electrode body, comprising a flexible body which comprises: a first electrode, comprising a body, a first cap joined to one end of the body, and a first electrode line connected to an other end of the body; an insulator in partial contact with the body and the first cap of the first electrode, said insulator functioning to insulate the first electrode from the second electrode; a second electrode, comprising a first ring in contact with the insulator, and a second electrode line connected to one end of the first ring; and a direction controller, comprising a first direction controlling wire communicating with the first electrode or the second electrode to control direction of the electrode body. Also, a guide pipe is provided for leading the electrode body to a target tissue.