Results 11 to 20 of about 278,785 (319)

Adaptive Fine Distortion Correction Method for Stereo Images of Skin Acquired with a Mobile Phone [PDF]

Sensors, 2020
With the development of the mobile phone, we can acquire high-resolution images of the skin to observe its detailed features using a mobile camera. We acquire stereo images using a mobile camera to enable a three-dimensional (3D) analysis of the skin ...
Cho-I Moon, Onseok Lee
doaj   +2 more sources

SynBOLD-DisCo: Synthetic BOLD images for distortion correction of fMRI without additional calibration scans. [PDF]

Proc SPIE Int Soc Opt Eng, 2023
Yu T, Cai LY, Morgan VL, Goodale SE, Englot DJ, Chang CE, Landman BA, Schilling KG.   +7 more
europepmc   +3 more sources

An Efficient Barrel Distortion Correction Processor for Bayer Pattern Images

IEEE Access, 2018
This paper proposes a low-complexity and high-throughput VLSI architecture for correction of barrel distortion in images acquired by wide-angle cameras.
Tae-Hwan Kim
doaj   +2 more sources

Thin-slice reverse encoding distortion correction DWI facilitates visualization of non-functioning pituitary neuroendocrine tumor (PitNET)/pituitary adenoma and surrounding normal structures [PDF]

European Radiology Experimental
Background To evaluate the clinical usefulness of thin-slice echo-planar imaging (EPI)-based diffusion-weighted imaging (DWI) with an on-console distortion correction technique, termed reverse encoding distortion correction DWI (RDC-DWI), in patients ...
Shuichi Ito, Sachi Okuchi, Yasutaka Fushimi, Sayo Otani, Krishna Pandu Wicaksono, Akihiko Sakata, Kanae Kawai Miyake, Hitomi Numamoto, Satoshi Nakajima, Hiroshi Tagawa, Masahiro Tanji, Noritaka Sano, Hiroki Kondo, Rimika Imai, Tsuneo Saga, Koji Fujimoto, Yoshiki Arakawa, Yuji Nakamoto   +17 more
doaj   +2 more sources

Optical distortion correction considering radial and tangential distortion rates defined by optical design

Results in Optics, 2021
This paper proposes a high-accuracy distortion correction method for optical imaging distortion mapping and computational image predistortion. Due to the establishment of the predistortion is based on the distortion evaluation in the common optical ...
Yue Liu, Dewen Cheng, Qiwei Wang, Qichao Hou, Luo Gu, Hailong Chen, Tong Yang, YongTian Wang   +7 more
doaj   +1 more source

Assessment of intraoperative diffusion EPI distortion and its impact on estimation of supratentorial white matter tract positions in pediatric epilepsy surgery

NeuroImage: Clinical, 2022
The effectiveness of correcting diffusion Echo Planar Imaging (EPI) distortion and its impact on tractography reconstruction have not been adequately investigated in the intraoperative MRI setting, particularly for High Angular Resolution Diffusion ...
Joseph Yuan-Mou Yang, Jian Chen, Bonnie Alexander, Kurt Schilling, Michael Kean, Alison Wray, Marc Seal, Wirginia Maixner, Richard Beare   +8 more
doaj   +1 more source

Distortion Correction Algorithm for Complex Document Image Based on Multi-level TextDetection [PDF]

Jisuanji kexue, 2021
Document distortion correction is the basic step of document OCR(optical character recognition),which plays an important role in improving the accuracy of OCR.Document image distortion correction often depends on text extraction.However,most of the ...
KOU Xi-chao, ZHANG Hong-rui, FENG Jie, ZHENG Ya-yu
doaj   +1 more source

The Design and Implementation of the Lookup Table in Distortion Correction for the Optical System

IEEE Access, 2023
Image geometric distortion is common in a large field of view optical system. It becomes a technical difficulty for high distortion rate optical systems and high resolution image geometric distortion correction.
Huiling Peng, Changku Sun, Peng Wang
doaj   +1 more source

Improved geometric accuracy of whole body diffusion-weighted imaging at 1.5T and 3T using reverse polarity gradients

Scientific Reports, 2022
Whole body diffusion-weighted imaging (WB-DWI) is increasingly used in oncological applications, but suffers from misalignments due to susceptibility-induced geometric distortion.
T. Sjöholm, J. Kullberg, R. Strand, M. Engström, H. Ahlström, F. Malmberg   +5 more
doaj   +1 more source

A solution method for image distortion correction model based on bilinear interpolation [PDF]

Компьютерная оптика, 2019
In the process of the image generation, because the imaging system itself has differences in terms of nonlinear or cameraman perspective, the generated image will face the geometric distortion.
Jun Li, Jie Su, Xiliang Zeng
doaj   +1 more source