Search Results for author: Zhengchang Kou

Found 6 papers, 0 papers with code

High-resolution Power Doppler Using Null Subtraction Imaging

no code implementations9 Jan 2023 Zhengchang Kou, Matthew Lowerison, Qi You, Yike Wang, Pengfei Song, Michael L. Oelze

Up to six-fold resolution improvement was demonstrated by the FWHM estimate and four-fold resolution improvement was demonstrated by the iso-frequency curve from the NSI-based PD microvessel images compared to microvessel images generated by traditional DAS-based beamforming.

Vocal Bursts Intensity Prediction

Grating lobe reduction in plane wave imaging with angular compounding using subtraction of coherent signals

no code implementations24 Oct 2022 Zhengchang Kou, Rita J. Miller, Michael L. Oelze

NSI was observed to greatly reduce the presence of grating lobes in ultrasonic images, compared to DAS with Hann and GCF, while maintaining spatial resolution and contrast in the images.

Through Tissue Ultra-high-definition Video Transmission Using an Ultrasound Communication Channel

no code implementations18 Oct 2022 Zhengchang Kou, Andrew C. Singer, Michael L. Oelze

Wireless capsule endoscopy (WCE) has been widely adopted as complementary to traditional wired gastroendoscopy, especially for small bowel diseases which are beyond the latter's reach.

High-level synthesis design of scalable ultrafast ultrasound beamformer with single FPGA

no code implementations6 Aug 2022 Zhengchang Kou, Qi You, Jihun Kim, Zhijie Dong, Matthew R. Lowerison, Nathiya V. Chandra Sekaran, Daniel A. Llano, Pengfei Song, Michael L. Oelze

Ultrafast ultrasound imaging is essential for advanced ultrasound imaging techniques such as ultrasound localization microscopy (ULM) and functional ultrasound (fUS).

Real-time video streaming in vivo using ultrasound as the communication channel

no code implementations28 Sep 2020 Zhengchang Kou, Rita J. Miller, Andrew C. Singer, Michael L. Oelze

To achieve real-time video streaming through tissue, data rates of ultrasound need to exceed 1 Mbps.

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