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Algorithms, Volume 17, Issue 8

August 2024 - 55 articles

Cover Story: This article introduces Lester, a novel method with which to automatically synthesize retro-style 2D animations from videos. The method approaches the challenge mainly as an object segmentation and tracking problem. Video frames are processed with the Segment Anything Model (SAM), and the resulting masks are tracked through subsequent frames with DeAOT, a method for semi-supervised video object segmentation. The geometry of the masks' contours is simplified with the Douglas–Peucker algorithm. Finally, facial traits, pixelation, and a basic rim light effect can be optionally added. The results show that the method exhibits an excellent temporal consistency and can correctly process videos with different poses and appearances, dynamic shots, partial shots, and diverse backgrounds. View this paper
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Articles (55)

  • Article
  • Open Access
6 Citations
2,470 Views
20 Pages

22 August 2024

One of the primary challenges in the railway industry revolves around achieving a comprehensive and insightful understanding of track conditions. The geometric parameters and stiffness of railway tracks play a crucial role in condition monitoring as...

  • Article
  • Open Access
2 Citations
1,432 Views
28 Pages

21 August 2024

This paper presents a novel, multi-objective scatter search algorithm (MOSS) for a bi-objective, dynamic, multiprocessor open-shop scheduling problem (Bi-DMOSP). The considered objectives are the minimization of the maximum completion time (makespan)...

  • Article
  • Open Access
2 Citations
2,656 Views
23 Pages

Joint Optimization of Service Migration and Resource Allocation in Mobile Edge–Cloud Computing

  • Zhenli He,
  • Liheng Li,
  • Ziqi Lin,
  • Yunyun Dong,
  • Jianglong Qin and
  • Keqin Li

21 August 2024

In the rapidly evolving domain of mobile edge–cloud computing (MECC), the proliferation of Internet of Things (IoT) devices and mobile applications poses significant challenges, particularly in dynamically managing computational demands and use...

  • Article
  • Open Access
1,024 Views
16 Pages

21 August 2024

The bipartite polarization problem is an optimization problem where the goal is to find the highest polarized bipartition on a weighted and labeled graph that represents a debate developed through some social network, where nodes represent user&rsquo...

  • Article
  • Open Access
2 Citations
1,970 Views
22 Pages

Identification of Crude Distillation Unit: A Comparison between Neural Network and Koopman Operator

  • Abdulrazaq Nafiu Abubakar,
  • Mustapha Kamel Khaldi,
  • Mujahed Aldhaifallah,
  • Rohit Patwardhan and
  • Hussain Salloum

21 August 2024

In this paper, we aimed to identify the dynamics of a crude distillation unit (CDU) using closed-loop data with NARX−NN and the Koopman operator in both linear (KL) and bilinear (KB) forms. A comparative analysis was conducted to assess the per...

  • Article
  • Open Access
2 Citations
1,896 Views
16 Pages

Augmented Dataset for Vision-Based Analysis of Railroad Ballast via Multi-Dimensional Data Synthesis

  • Kelin Ding,
  • Jiayi Luo,
  • Haohang Huang,
  • John M. Hart,
  • Issam I. A. Qamhia and
  • Erol Tutumluer

21 August 2024

Ballast serves a vital structural function in supporting railroad tracks under continuous loading. The degradation of ballast can result in issues such as inadequate drainage, lateral instability, excessive settlement, and potential service disruptio...

  • Article
  • Open Access
2 Citations
1,750 Views
19 Pages

Determining Thresholds for Optimal Adaptive Discrete Cosine Transformation

  • Alexander Khanov,
  • Anastasija Shulzhenko,
  • Anzhelika Voroshilova,
  • Alexander Zubarev,
  • Timur Karimov and
  • Shakeeb Fahmi

21 August 2024

The discrete cosine transform (DCT) is widely used for image and video compression. Lossy algorithms such as JPEG, WebP, BPG and many others are based on it. Multiple modifications of DCT have been developed to improve its performance. One of them is...

  • Article
  • Open Access
1 Citations
2,100 Views
16 Pages

20 August 2024

This paper demonstrates how the processing of Brillouin gain spectra (BGS) by two-dimensional correlation methods improves the accuracy of Brillouin frequency shift (BFS) extraction in distributed fiber optic sensor systems based on the BOTDA/BOTDR (...

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Algorithms - ISSN 1999-4893