Abstract: A digital image processing apparatus and tracking method are provided to rapidly and accurately track a subject location in video images. The apparatus searches for a target image that is most similar to a reference image, in a current frame image in which each pixel has luminance, and other, data, the reference image being smaller than the current frame image, and includes a similarity calculator for calculating a degree of similarity between the reference image and each of a plurality of matching images that have the same size as the reference image and are portions of the current frame image; and a target image determination unit for determining one of the plurality of matching images as the target image using the degree of similarity obtained by the similarity calculator. The similarity calculator calculates the degree of similarity by applying greater weight to the other data than to the luminance data.

Abstract: An image interpolating method and apparatus, in which horizontal and vertical Differences of Absolute Inter-channel Differences (DAIDs) are calculated from a color filter array (CFA) image, and an unknown pixel is interpolated in horizontal and vertical directions estimated in consideration of the DAIDs of R, G, and B pixels. Therefore, the image interpolating method and apparatus provide a large Peak Signal and Noise Ratio (PSNR), a Structural Similarity (SSIM), and high visual quality images.

Abstract: Disclosed is a microchip for a flowcytometer. A channel is expanded around a point, on which laser beams emitted from an optical unit are focused, so that focused sample particles slow down when they pass the expanded portion. This improves the detection intensity of sample particles.

Abstract: An image processing method and apparatus may effectively reduce noise in an image which represents an object photographed by a photographing apparatus. The method may include extracting a first low-frequency component and a first high-frequency component from first image data, and applying a noise reduction filter to the first low-frequency component and to the first high-frequency component to obtain a second low-frequency component and a second high-frequency component, respectively. The method may also include obtaining edge data from the second low-frequency component, and amplifying a portion of the second high-frequency component that corresponds to the edge data to obtain a third high-frequency component. The method may further include combining the second low-frequency component with the third high-frequency component to obtain second image data, and controlling the second image data representing the photographed object to be output to at least one of a storage medium and a display unit.

Abstract: A microchannel chip for counting floating microparticles with an optical method is provided. The depth of the microchannel chip is made to be a depth of field such that a clear and sharp optical image of microparticles can be obtained, without necessarily diluting the microparticle mixture inside the microchannel. Consequently, a microparticle counting instrument can easily count microparticles shown on an optical image of the microchannel. Particularly, it enables to count more easily the number of CD3 cells CD4 cells or CD8 cells in white blood cells being stained, without lysing or diluting red blood cells. Therefore, the microchannel chip can advantageously used for counting the number of CD3 cells, CD4 cells or CD8 cells in blood of an AIDS patient to monitor the progression of AIDS.

Abstract: Disclosed is a micro particle analyzing device illuminating light to fluid including micro particles, reading the lights emitted from the micro particles at a signal processing reading section and thus analyzing the micro particles. The device comprises a light source section emitting light which will be illuminated to the fluid; a lens regulating an amount and a focal distance of the light emitted from the light source; and a concave mirror condensing light emitted from the micro particle to reflect it to the reading section wherein the concave mirror is formed with a hole so that the light of the light source section having passed through the lens can pass through the concave mirror. When analyzing the micro particles using the analyzing device according to the invention, the amounts of lights emitted from the micro particles according to up-and-down positions of the micro particles are not different.

Abstract: Disclosed is a focusing channel device which focuses fluid containing micro particles so that the micro particles flow in a line. The channel device comprises a nozzle formed by left and right walls each of which comprises an inclination surface. The cross sectional area in vertical direction decreases from the entrance of the nozzle toward the exit of the nozzle. The shape of cross sectional view in horizontal direction is asymmetric for the central line in the length direction. Using the focus channel device of the invention, the micro particles in the fluid are not combined with each other and passed through the channel one by one. Thus, blockage of the channel or combination and movement of two particles together does not occur.

Abstract: Disclosed is a channel filter for separating microparticles, and more particularly to a channel filter which can easily separate a sample having various sized microparticles by using a surface topology. In the disclosed channel filter, a topology having an upward/downward reference height from a sample inlet to an outlet is continuously or discontinuously formed, and thus it is possible to efficiently separate microparticles from a sample liquid.

Abstract: Disclosed is a a flow cytometer for diagnosis of HIV infections. A fluorescent material having a relatively lower fluorescence intensity is conjugated with one marker and another fluorescent material having a relatively higher fluorescence intensity is conjugated with the other marker. The two markers can be sorted and counted individually and simultaneously from the fluorescence intensity difference.

Abstract: Provided is a rotary bar screen device. The device includes a driving motor, an up/down pair of driving and driven sprockets, left and right transfer chains, a plurality of screen buckets, a removal unit, and a slide plate. The driving motor is provided over a support frame, and transmits a driving force. The driving and driven sprockets are driven by the driving force. The left and right transfer chains connect the driving and driven sprockets with each other while circulatively moving. The plurality of screen buckets are provided between the left and right transfer chains. The removal unit is provided between the left and right driving sprockets. The slide plate guides the foreign materials dropping from the screen buckets.

Abstract: Disclosed is a method for detecting and counting cell surface markers using a difference in fluorescence intensities. A fluorescent material having a relatively lower fluorescence intensity is conjugated with one marker and another fluorescent material having a relatively higher fluorescence intensity is conjugated with the other marker. The two markers can be sorted and counted individually and simultaneously from the fluorescence intensity difference.

Abstract: Disclosed is an optical device for illuminating a chip having a sample provided thereto with a beam in an apparatus for observing the sample. The optical device comprises a light source; and a first reflector reflecting the beam of the light source to allow the reflected beam to be incident on the chip at an inclined angle. In addition, the invention provides an apparatus for observing micro particles having the optical device. When the light of the light source is incident on the sample at an incline angle according to the optical device of the invention, it is possible to maximize a transmittancy of the light. Accordingly, the light emitted from the sample is clearer and a clear image can be thus obtained.

Abstract: Disclosed is a focusing channel device which focuses fluid containing micro particles so that the micro particles flow in a line. The channel device comprises a nozzle formed by left and right walls each of which comprises an inclination surface. The cross sectional area in vertical direction decreases from the entrance of the nozzle toward the exit of the nozzle. The shape of cross sectional view in horizontal direction is asymmetric for the central line in the length direction. Using the focus channel device of the invention, the micro particles in the fluid are not combined with each other and passed through the channel one by one. Thus, blockage of the channel or combination and movement of two particles together does not occur.

Abstract: Disclosed is a micro particle analyzing device illuminating light to fluid including micro particles, reading the lights emitted from the micro particles at a signal processing reading section and thus analyzing the micro particles. The device comprises a light source section emitting light which will be illuminated to the fluid; a lens regulating an amount and a focal distance of the light emitted from the light source; and a concave mirror condensing light emitted from the micro particle to reflect it to the reading section wherein the concave mirror is formed with a hole so that the light of the light source section having passed through the lens can pass through the concave mirror. When analyzing the micro particles using the analyzing device according to the invention, the amounts of lights emitted from the micro particles according to up-and-down positions of the micro particles are not different.

Abstract: Disclosed is a microchip for a flowcytometer. A channel is expanded around a point, on which laser beams emitted from an optical unit are focused, so that focused sample particles slow down when they pass the expanded portion. This improves the detection intensity of sample particles.

Abstract: A device for counting micro particles is presented. The device comprises a light source; a chip containing micro particles; an object lens; a CCD camera; a counting part; and a shifter for shifting the position of the chip. It is easy to count the number of micro particles, such as red blood cells or somatic cells, by using the device. The shifter shifts the position of the chip by a predetermined distance at every predetermined time interval in order that a certain area adjacent to the area photographed just before is shifted to the point where the light is incident. Therefore, sub-areas on the chip are photographed successively. The counting part counts the number of micro particles in each sub-area, and adds them together to calculate the total number of micro particles in the samples.

Abstract: A speaker recognition method and apparatus are provided. In the speaker recognition method, basic data and voice data of a speaker are received using contents that constantly request the speaker to constantly response using the speaker's voice. Then, a voice of the speaker is extracted from voice data, and a feature vector for recognition is extracted from the voice of the speaker. Based on the extracted feature vector, a speaker model is created. Then, a speaker stored in a speaker model is recognized based on information analyzed from input voice.

Abstract: An electroporation apparatus comprising an elongated hollow member in order to provide a uniform electric field during electroporation, wherein specifically, electroporation is carried out by applying electric pulses through a couple of electrodes from both end parts of the elongated hollow member, after the hollow member is charged with fluid specimen including cells and material which would be injected into the cells.

Abstract: Provided is a rotary bar screen device. The device includes a driving motor, an up/down pair of driving and driven sprockets, left and right transfer chains, a plurality of screen buckets, a removal unit, and a slide plate. The driving motor is provided over a support frame, and transmits a driving force. The driving and driven sprockets are driven by the driving force. The left and right transfer chains connect the driving and driven sprockets with each other while circulatively moving. The plurality of screen buckets are provided between the left and right transfer chains. The removal unit is provided between the left and right driving sprockets. The slide plate guides the foreign materials dropping from the screen buckets.

Abstract: A method of examining blood type and an apparatus for examining blood type using the method are presented. According to the method, the blood type is examined once the blood is injected into the apparatus, and the result of examination is kept safely. The method comprises introducing the reagents into the plural reagent chambers respectively; flowing the blood into each of reagent chambers and mixing them with the reagents; filtering the mixture of blood; and flowing the mixture of blood which passed the filters-into the reading channels. The introduced blood is passed the micro channels and reacted with the reagents, and the results are obtained from filtering the mixture of blood. Thus, even small quantity of blood may be examined easily and clearly. Further, the results of examination are easily read and kept. The apparatus may be carried out and used with convenience.