Medison Co., Ltd.

Samsung Electronics Co., Ltd.

Samsung Medison Co., Ltd.

Industry Academic Cooperation Foundation Hallym University

Madison Co., Ltd.

Moo Ho Bae

Ra Young Yoon

Jung Ho Kim

Sung Chan Park

Tae Yun Kim

Joo Young Kang

Su Hyun Park

Ronald Elvin Daigle

Yung Gil Kim

Jeong Ho Ham

Kyu Hong Kim

Yun Tae Kim

Chi Young Ahn

Mok Kun Jeong

Han Woo Lee

Ki Jong Lee

Sung Jae Kwon

Ki Jeon

Ji Hoon Bang

Song Bai Park

Jae Bum Hong

Sung Bae Park

Chang Sun Kim

Young Seok Lee

Kyoung Bo Lee

Chi Young Discusser & Medison Building Ahn

Ra Young Discusser & Medison Building Yoon

An image processing module includes an input unit, a weight operator, and a synthesizer. The input unit is configured to receive a plurality of input signals of a plurality of channels. The weight operator is configured to calculate at least one weight to be applied to each channel based on at least one converted signal. The at least one converted signal is acquired by converting at least one input signal among the plurality of input signals of each channel, or by converting a synthesized input signal of the plurality of input signals of each channel. The synthesizer is configured to synthesize the plurality of input signals of the plurality of channels using the weight.

Image processing module, ultrasound imaging apparatus, image processing method, and control method of ultrasound imaging apparatus

A beamforming module includes a conversion unit configured to convert an input signal to generate a converted signal using at least one conversion function, a weight calculator configured to calculate a converted signal weight as a weight for the converted signal, and a synthesizer configured to generate a result signal using the converted signal and the converted signal weight.

Beamforming module, ultrasonic imaging apparatus using the same, beamforming method using the beamforming module, and method of controlling the ultrasonic imaging apparatus using the beamforming module

An apparatus and method capable of producing a tissue Doppler image without repeatedly transmitting ultrasound signals by the ensemble number to each scan line. An ultrasound beam is transmitted in a non-sequential manner and a plurality of receive beams received in response to each transmission of the transmit beam are grouped into an increment data group of a scan line index increasing direction and a decrement data group of a scan line index decreasing direction. Auto correlation is performed on the increment data group of the scan line index ascending order and decrement data group of the scan line index descending order, weights are applied to respective auto correlation values for the increment and decrement data group, and then the auto correlation values with the weight applied are summed to compute a mean phase. At least one of velocities, powers and variances in response to the mean phase is outputted to produce TDI.

Apparatus and method for creating tissue doppler image using synthetic image

An ultrasound diagnostic device includes a plurality of channels configured to receive data and a scan line data forming unit including a plurality of sub-scan line data forming groups and a data summing unit. The sub-scan line data forming group forms partial data of scan lines, and the data summing unit forms scan line data of the scan lines by summing the partial data. The sub-scan line data forming group includes a plurality of sub-scan line data forming units for forming the partial data of the scan lines by using the receiving data and providing a transmission path of the receiving data. First data lines transmit the receiving data between at least one of the sub-scan data forming unit and the channels, and second data lines transfer the receiving data between the sub-scan line data forming units.

Ultrasound diagnostic device and method for forming scan line data

There are provided an ultrasound imaging system and a method of forming a plurality of scan lines and frames by using receiving signals provided by transducers in a probe. Main scan lines, which are selected among the scan lines and supplement scan lines determined with the others, are assigned to each scan line data forming unit in the ultrasound imaging system. A partial data of the main scan line and a first supplement data of the supplement scan line are formed with receive data obtained from receive signals from at least one transducer. A second supplement data provided from other scan line data forming units is applied to the partial data of the main scan line to form a scan line data of the main scan line.

System of forming ultrasound image and method of forming scan line data

Disclosed is an ultrasound color Doppler image system. The ultrasound color Doppler image system includes a calculation unit that calculates a mean value associated with an I/Q signal corresponding to a pixel of a color image in an ultrasound image and generates a multiplication value using the calculated mean value; a comparison unit that compares the generated multiplication value with the mean value; and a masking unit that performs masking of the pixel based on a comparison result, and, the calculation unit calculates the mean value of the I/Q signal for each frame, selects a reference mean value based on scales of the calculated mean values, and generates the multiplication value by multiplying the selected reference mean value and a scale factor.

Ultrasound color Doppler imaging system and method for filtering clutter signal of the same

Embodiments of adaptively performing clutter filtering are disclosed. In one embodiment, by way of non-limiting example, an ultrasound system comprises: an ultrasound data acquisition unit configured to transmit and receive ultrasound signals to and from a target object to thereby output a plurality of ultrasound data for obtaining a color Doppler mode image, wherein the target object includes at least one of a tissue and a blood flow; and a processing unit placed in communication with the ultrasound data acquisition unit and being configured to locate the plurality of ultrasound data on a complex plane, the processing unit being further configured to perform a circle fitting upon the plurality of ultrasound data located on the complex plane and perform a downmixing and a clutter filtering upon the circle-fitted ultrasound data in consideration of speed of the tissue.

Ultrasound system and method for adaptively performing clutter filtering

An ultrasound system and method for forming ultrasound data corresponding to a receive scan line independent of a synthetic aperture. The ultrasound system includes the ultrasound data forming unit configured to: form scan line data corresponding to each of the receive scan lines by using data provided from the receive channels; form accumulated data by accumulating the scan line data corresponding to the receive scan lines of the same position; set a storing start position for storing the accumulated data based on the transmit synthesizing number; and store the accumulated data by shifting the storing start position by 1, thereby forming ultrasound data corresponding to each of the receive scan linen lines.

Ultrasound system and method for ultrasound data

The present invention relates to a method of removing an effect of side lobes in an ultrasound synthetic image. The method includes: a) setting a plurality of scan lines and defining sequential indices upon the scan lines; b) setting a transmit order of a transmit beam for the scan lines in a non-sequential manner in which increment and decrement of the indices of the scan lines are repeated; c) transmitting the transmit beam based on the set transmit order to obtain a plurality of receive beams in response to each transmission of the transmit beam; d) grouping the receive beams to an increment group corresponding to an increment direction of the numbers of the scan lines and a decrement group corresponding to a decrement direction of the numbers of the scan lines; e) performing an auto correlation upon the receive beams included in the respective increment group and the decrement group; and f) applying weights to the auto correlation results and summing the weight-applied auto correlation results to thereby remove an effect of side lobes.

Method of removing an effect of side lobes in forming an ultrasound synthetic image

There is provided an ultrasound system for forming strain images by decreasing decorrelation of receive signals, which vary with time or space. More specifically, the decorrelation between the receive signals obtained without and with applying stress to a target object is reduced to decrease an error, which occurs during the calculation of a delay. Also, a center frequency, which varies with depth of a target object, is compensated to form the strain image.

Ultra sound system for forming strain images with instantaneous frequency

A digital receive-focusing apparatus for receive-focusing ultrasound channel signals from a plurality of transducers in an ultrasound imaging system is provided. The digital receive-focusing apparatus in accordance with the present invention comprises a plurality of channel modules responsive to the ultrasound channel signals for producing a receive-focused beam. Each of the plurality of channel modules comprises an analogue multiplexer for multiplexing at least two ultrasound channel signals and a signal processor for digitally processing and compensating the multiplexed signal.

Digital receive-focusing apparatus using analogue multiplexers

Embodiments of the present invention may provide an ultrasound imaging system and method for forming multiple receiving scan lines from one original receiving scan line. Ultrasound signals reflected from one original receiving scan line are converted into analog signals having a center frequency. The analog signals are converted into digital data. The digital data are coarsely delayed, wherein the coarsely delayed data are extracted at a rate of n-times of the center frequency. Data of the multiple receiving scan lines are formed by performing fine delay and interpolation. For the interpolation, parts of the extracted data are selected at a rate of n-times of the center frequency and the multiple receiving scan lines.

Ultrasound diagnostic system and method for forming multiple receiving scan lines

An ultrasound imaging method and apparatus forms high-quality color ultrasound images by using variable power threshold levels depending on pixel position. The method comprises the steps of determining a power threshold level that is varied depending on a noise, transmitting ultrasound signals from at least one transducer array to a target object, receiving a first signal including a signal reflected from the target object mixed with a noise, and imaging an ultrasound image of the target object corresponding to the first signal when the power level of the first signal is greater than the variable power threshold level. The apparatus comprises one or more transducers for transmitting an ultrasound signal to an object and receiving a first signal including a reflected signal from the object mixed with a noise; and a digital signal processor for forming an ultrasound image of the object corresponding to the first signal when a power level of the first signal is greater than a variable power threshold level.

Ultrasound imaging method and apparatus for forming color images by using a variable power threshold level

An adaptive transmit-focusing and beam-forming method and apparatus is provided, which in connection with beam-forming applies adaptive patterns of delay profiles to reflected ultrasonic pulses from a group of ultrasonic pulses, received by transducer arrays, forms multiple sets of preliminary scan-line data, and combines the multiple sets of preliminary scan-line data into single scan-line data; and in connection with transmit-focusing performs focusing a group of ultrasonic pulses by applying a plurality of delay profiles in accordance with propagation velocities within an object region to be ultrasonic imaged. The adaptive transmit-focusing and beam-forming method and apparatus reduces transmit-focusing and beam-forming errors generated from applying a single pattern of delay profile, and provides clear ultrasonic images.

Transmit-focusing and beam-forming method and apparatus for providing adaptive scan-line

Disclosed is an ultrasound imaging system based on a multi-stage pulse compression and multi-stage time delaying scheme. In the ultrasound imaging system, a transducer array is grouped into a predetermined number of transducer groups, and the grouped ultrasound signals are processed hierarchically via multi-stage pulse compression and multi-stage time delaying operations so that a finely receive-focused ultrasound signal can be obtained.

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Seoul, South Korea

Moo Ho Bae