Results 61 to 70 of about 52,493 (283)

Improving Multi-pixel Visual Quality of Invariant Visual Cryptography Scheme

International Journal of Computational Intelligence Systems
A visual cryptography scheme (VCS) splits the secret image into several shares. Stacking a certain number of shares will reveal the secret image. The principle algorithm (deterministic algorithm) retains the size of shares, and the revealed image is at ...
Maged Wafy
doaj   +1 more source

Visual Secret Sharing Techniques without Pixel Expansion

, 2009
[[abstract]]Unlike traditional cryptography, visual secret sharing technology decodes a ciphertext by using human?s eyes. The traditional visual secret sharing technology must go through pixel expansion and decomposition to produce some meaningless ...
Yu-Wei Liao
core  

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat, Guido Barale, John Stavridis, Ehsan Norouzi, Jin‐Yoo Suh, Dong‐Ik Kim, Luca Iuliano, Abdollah Saboori   +7 more
wiley   +1 more source

Modeling Land-Cover Types Using Multiple Endmember Spectral Mixture Analysis in a Desert City [PDF]

Spectral mixture analysis is probably the most commonly used approach among sub-pixel analysis techniques. This method models pixel spectra as a linear combination of spectral signatures from two or more ground components.
Soe W. Myint, Gregory S. Okin
core  

Spatiotemporal Fuzzy Clustering Strategy for Urban Expansion Monitoring Based on Time Series of Pixel-Level Optical and SAR Images

, 2017
Monitoring urban expansion dynamically using remote sensing technology is an essential method for obtaining and understanding urban spatial structure.
Xu, Xinliang, Wang, Yafei, Chen, Peipei, Shuang Li, Peipei Chen, Li, Shuang, Cheng, Chengqi, Xinliang Xu, Bo Chen, Chengqi Cheng, Chen, Bo, Yafei Wang   +11 more
core   +1 more source

Amodal Instance Segmentation via Prior-Guided Expansion

, 2023
Amodal instance segmentation aims to infer the amodal mask, including both the visible part and occluded part of each object instance. Predicting the occluded parts is challenging.
Qian, Chen, Niu, Li, Zhang, Jianfu, Chen, Junjie, Zhang, Liqing, Si, Jianlou   +5 more
core   +1 more source

Multimodal Data‐Driven Microstructure Characterization

Advanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang, Santiago Benito, Özge Özgün, Sebastian Weber, Markus Stricker   +4 more
wiley   +1 more source

Lossless Basis Expansion for Gradient-Domain Rendering

Gradient-domain rendering utilizes difference estimates with shift mapping to reduce variance in Monte Carlo rendering. Such difference estimates are effective under the assumption that pixels for difference estimates have similar integrands.
Fang, Qiqin
core   +2 more sources

Deep learning segmentation and registration-driven lung parenchymal volume and movement CT analysis in prone positioning.

PLoS ONE
PurposeTo conduct a volumetric and movement analysis of lung parenchyma in prone positioning using deep neural networks (DNNs).MethodWe included patients with suspected interstitial lung abnormalities or disease who underwent full-inspiratory supine and ...
Hyungin Park, Soon Ho Yoon
doaj   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source