Abstract: An image reconstruction apparatus includes: a transmission signal generation unit configured to generate a transmission signal in an image reconstruction region, in order to acquire an image reconstruction value; an electromagnetic wave measurement unit configured to measure electromagnetic waves by receiving the transmission signal; an image reconstruction unit configured to update a parameter by using a matrix of matched system of a Sinc-Gauss-shaped basis function which is allocated to each node of a reconstruction mesh in the image reconstruction region, and generate an image reconstruction value; and an optimization determination unit configured to determine whether the parameter of the image reconstruction unit is optimized or not, and output the image reconstruction value or cause the image reconstruction unit to repetitively perform the calculation, wherein the reconstruction mesh has a grid structure of which the size is larger than that of a forward mesh and equal to the image spatial resolution.

Abstract: An image reconstruction apparatus includes: a transmission signal generation unit configured to generate a transmission signal in an image reconstruction region, in order to acquire an image reconstruction value; an electromagnetic wave measurement unit configured to measure electromagnetic waves by receiving the transmission signal; an image reconstruction unit configured to update a parameter by using a matrix of matched system of a Sinc-Gauss-shaped basis function which is allocated to each node of a reconstruction mesh in the image reconstruction region, and generate an image reconstruction value; and an optimization determination unit configured to determine whether the parameter of the image reconstruction unit is optimized or not, and output the image reconstruction value or cause the image reconstruction unit to repetitively perform the calculation, wherein the reconstruction mesh has a grid structure of which the size is larger than that of a forward mesh and equal to the image spatial resolution.

Abstract: Disclosed is an electro-magnetic tomography including: a modulator configured to modulate a generated transmit reference signal using a pseudo-noise signal; a transmitter configured to transmit the signal modulated by the modulator; a receiver configured to receive a signal transmitted from a transmitter; an amplitude detector configured to compare an amplitude magnitude between the signal received by the receiver and the transmit reference signal to measure a received amplitude; and a demodulator configured to demodulate the signal received by the receiver using the pseudo-noise signal to generate a cyclic signal, compare a phase between the transmit reference signal and the cyclic signal to measure the phase of the cyclic signal, and determine the phase of the received signal based on the phase of the measured cyclic signal.

Abstract: Disclosed is an image reconfiguration method for electro-magnetic tomography.

Abstract: An apparatus for three-dimensionally measuring an object shape includes: a number of line lasers configured to emit laser lines to a subject to be measured and create a closed-curve shape related to a sectional contour line of the subject; and a camera configured to obtain an image of the created closed-curve shape.

Abstract: Provided are microwave image reconstruction apparatus and method. An apparatus for diagnosing a breast cancer, includes: a plurality of antennas for inserting a breast and configured to transmit and receive the electromagnetic wave; an electromagnetic wave transceiver configured to receive phase and amplitude information of the electromagnetic wave; an initial distribution value provider configured to set an initial dielectric constant and conductivity distribution value for dielectric constant and conductivity of a breast of a patient and in the tank; a first image reconstruction unit configured to transform the amplitude information of the electromagnetic wave through log transform and to obtain a first image by calculating a phase and amplitude information value of electric field generated from the electromagnetic wave; and a second image reconstruction unit configured to transform the first image in a value in a complex number form and to transform values to a second image.

Abstract: A cancer diagnostic apparatus using electromagnetic waves includes: a plurality of antennas configured to transmit an electromagnetic wave signal to a human body and receive the electromagnetic wave signal from the human body; a switching unit configured to switch the antennas to a transmit mode or a receive mode; a signal generator configured to generate an electromagnetic wave signal to be transmitted to an antenna set to the transmit mode; a signal converter configured to convert an electromagnetic wave signal received from an antenna set to the receive mode into an intermediate frequency signal; and a controller including a switching controller to control the switching unit and a data processor to process a permittivity distribution image of the human body from the intermediate frequency signal.

Abstract: A breast cancer diagnosis apparatus controls supply and flow rate of fluid to rapidly and effectively supply the fluid. As a result, time for diagnosing the breast cancer is shortened. Also, by preventing overflow or shortage of the fluid, the breast cancer diagnosis apparatus accurately diagnoses the breast cancer. A breast cancer diagnosis apparatus includes a fluid supply unit, and a supply control unit for controlling the fluid supplied from the fluid supply unit.

Abstract: According to an antenna device of the invention, an antenna frame is formed in a tank having an opening and filled with a medium, and a plurality of antennas are mounted to the antenna frame and vertically extend such that they surround a target of diagnosis. One of the antennas includes a transmitting module that radiates microwave signals and the other antennas include receiving modules that receive the radiated microwave signals.