Results 71 to 80 of about 1,019 (182)

External validation of an artificial intelligence model for Gleason grading of prostate cancer on prostatectomy specimens

BJU International, Volume 135, Issue 1, Page 133-139, January 2025.
Objectives To externally validate the performance of the DeepDx Prostate artificial intelligence (AI) algorithm (Deep Bio Inc., Seoul, South Korea) for Gleason grading on whole‐mount prostate histopathology, considering potential variations observed when applying AI models trained on biopsy samples to radical prostatectomy (RP) specimens due to ...
Bogdana Schmidt, Simon John Christoph Soerensen, Hriday P. Bhambhvani, Richard E. Fan, Indrani Bhattacharya, Moon Hyung Choi, Christian A. Kunder, Chia‐Sui Kao, John Higgins, Mirabela Rusu, Geoffrey A. Sonn   +10 more
wiley   +1 more source

Accurate Classification of Pathological Whole‐Slide Images for Out‐of‐Distribution Generalization

International Journal of Intelligent Systems, Volume 2025, Issue 1, 2025.
WSI‐based classification often suffers from out‐of‐distribution (OOD) generalization due to the distribution mismatch between training on mixed patches from multiple WSIs and testing on individual WSIs with varying tissue compositions. This prior shift impairs model generalization and degrades performance.
Kai Sun, Kai Huang, Jiaqi Huang, Maoxu Zhou, Gang Yu, Stefano Cirillo   +5 more
wiley   +1 more source

Adapting Traditional Macro and Micro Photography for Scientific Gigapixel Imaging

, 2018
Traditionally, GigaPan technology has been used to acquire high resolution panoramas of large scenes. While thisapplication is useful for many scientific pursuits, it excludes the macro and microscopic realms of scientific research.
Randy Sargent (5358500), Rich Gibson (5458460), John Rawlins (5458457), Gene Cooper (5458454), Molly Gibson (5458463), Jay Longson (5458466)   +5 more
core   +1 more source

Practical quantification of necrosis in histological whole-slide images

, 2022
S.313-322Since the histological quantification of necrosis is a common task in medical research and practice, we evaluate different image analysis methods for quantifying necrosis in whole-slide images. In a practical usage scenario, we assess the impact
Homeyer, A., Arlt, J., Dahmen, U., Schenk, A., Dirsch, O., Hahn, H.K.   +5 more
core   +1 more source

Multimodal data fusion AI model uncovers tumor microenvironment immunotyping heterogeneity and enhanced risk stratification of breast cancer

MedComm, Volume 5, Issue 12, December 2024.
This study introduces an advanced cohort research on breast cancer prognosis, revealing four distinct immune–metabolic subtypes with notable survival differences. Using cutting‐edge AI techniques, we developed a pathology‐based model integrating a modified ResNet50 network with an attention‐gated mechanism for subtype prediction.
Yunfang Yu, Gengyi Cai, Ruichong Lin, Zehua Wang, Yongjian Chen, Yujie Tan, Zifan He, Zhuo Sun, Wenhao Ouyang, Herui Yao, Kang Zhang   +10 more
wiley   +1 more source

High-Dynamic-Range Spectral Imaging System for Omnidirectional Scene Capture

, 2018
Omnidirectional imaging technology has been widely used for scene archiving. It has been a crucial technology in many fields including computer vision, image analysis and virtual reality. It should be noted that the dynamic range of luminance values in a
Motoki Hori, Shoji Tominaga, Keita Hirai, Takahiko Horiuchi, Naoto Osawa   +4 more
core   +1 more source

UltraZoom: Generating Gigapixel Images from Regular Photos

Proceedings of the SIGGRAPH Asia 2025 Conference Papers
We present UltraZoom, a system for generating gigapixel-resolution images of objects from casually captured inputs, such as handheld phone photos. Given a full-shot image (global, low-detail) and one or more close-ups (local, high-detail), UltraZoom upscales the full image to match the fine detail and scale of the close-up examples. To achieve this, we
Jingwei Ma, Vivek Jayaram, Brian Curless, Ira Kemelmacher-Shlizerman, Steven M. Seitz   +4 more
openaire   +2 more sources

Optical performance test and validation of microcameras in multiscale, gigapixel imagers

Optics Express, 2014
Wide field-of-view gigapixel imaging systems capable of diffraction-limited resolution and video-rate acquisition have a broad range of applications, including sports event broadcasting, security surveillance, astronomical observation, and bioimaging. The complexity of the system integration of such devices demands precision optical components that are
Seo Ho, Youn, Hui S, Son, Daniel L, Marks, Jeffrey M, Shaw, Paul O, McLaughlin, Steven D, Feller, David J, Brady, Jungsang, Kim   +7 more
openaire   +2 more sources

Low-cost gigapixel microscopy

, 2019
We report a Fourier ptychography reconstruction that enabled the use of low-cost Bayer-filtered color cameras. Using 3D-printing, consumer electronics and robust calibration we demonstrated a microscope capable of capturing sub-micron resolution 25 ...
Tomas Aidukas (6914375), Imaging Concepts Group (6905342)   +1 more
core   +1 more source

Navigating Gigapixel Pathology Images with Large Multimodal Models

CoRR
Despite being widely used to support clinical care, general-purpose large multimodal models (LMMs) have generally shown poor or inconclusive performance in medical image interpretation, particularly in pathology, where gigapixel images are used.
Thomas A. Buckley, Kian R. Weihrauch, Katherine Latham, Andrew Z. Zhou, Padmini A. Manrai, Arjun K. Manrai   +5 more
openaire   +2 more sources