A. Lopes

1.2k total citations · 1 hit paper
34 papers, 801 citations indexed

About

A. Lopes is a scholar working on Computer Vision and Pattern Recognition, Signal Processing and Electrical and Electronic Engineering. According to data from OpenAlex, A. Lopes has authored 34 papers receiving a total of 801 indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Computer Vision and Pattern Recognition, 8 papers in Signal Processing and 6 papers in Electrical and Electronic Engineering. Recurrent topics in A. Lopes's work include Advanced Image and Video Retrieval Techniques (7 papers), Image Retrieval and Classification Techniques (6 papers) and Direction-of-Arrival Estimation Techniques (4 papers). A. Lopes is often cited by papers focused on Advanced Image and Video Retrieval Techniques (7 papers), Image Retrieval and Classification Techniques (6 papers) and Direction-of-Arrival Estimation Techniques (4 papers). A. Lopes collaborates with scholars based in Brazil, Portugal and Canada. A. Lopes's co-authors include Arnaldo de Albuquerque Araújo, Sandra Avila, Antonio da Luz, Thomas M. Deserno, Guillermo Cámara-Chávez, Alexei Manso Corrêa Machado, Mohammad Reza Iravani, Wallace C. Boaventura, A. Semlyen and Carlos A. Silva and has published in prestigious journals such as The Journal of Chemical Physics, IEEE Transactions on Power Systems and Pattern Recognition Letters.

In The Last Decade

A. Lopes

32 papers receiving 765 citations

Hit Papers

VSUMM: A mechanism designed to produce static video summa... 2010 2026 2015 2020 2010 100 200 300 400
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. VSUMM: A mechanism designed to produce static video summaries and a novel evaluation method
    2010 453 citations Sandra Avila, A. Lopes et al. Pattern Recognition Letters profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
A. Lopes Brazil 11 628 364 120 94 52 34 801
SangEun Han United States 12 195 0.3× 91 0.3× 9 0.1× 74 0.8× 44 0.8× 29 447
A. Webster United States 10 313 0.5× 124 0.3× 37 0.3× 18 0.2× 73 1.4× 23 418
Rekha Vig India 16 336 0.5× 103 0.3× 4 0.0× 204 2.2× 17 0.3× 52 565
Steven Bergner Canada 9 195 0.3× 37 0.1× 11 0.1× 56 0.6× 5 0.1× 11 336
Daniel V. Klein United States 6 53 0.1× 272 0.7× 34 0.3× 69 0.7× 16 0.3× 13 417
Hee-Jung Lee South Korea 13 49 0.1× 32 0.1× 14 0.1× 30 0.3× 36 0.7× 66 464
Thomas Allen United States 3 83 0.1× 42 0.1× 27 0.2× 166 1.8× 52 1.0× 7 397
Marco Ramilli Italy 13 25 0.0× 164 0.5× 26 0.2× 224 2.4× 89 1.7× 39 620
Weixiang Liu China 9 106 0.2× 39 0.1× 5 0.0× 61 0.6× 17 0.3× 20 305
Hung Son Nguyen Poland 14 63 0.1× 80 0.2× 3 0.0× 329 3.5× 54 1.0× 91 669

Countries citing papers authored by A. Lopes

Since Specialization
Citations

This map shows the geographic impact of A. Lopes's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by A. Lopes with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites A. Lopes more than expected).

Fields of papers citing papers by A. Lopes

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by A. Lopes. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by A. Lopes. The network helps show where A. Lopes may publish in the future.

Co-authorship network of co-authors of A. Lopes

This figure shows the co-authorship network connecting the top 25 collaborators of A. Lopes. A scholar is included among the top collaborators of A. Lopes based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with A. Lopes. A. Lopes is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Lopes, A., Ana João Rodrigues, Ana Paula Ventura‐Silva, et al.. (2024). Early morphological and neurochemical changes of the bed nucleus of stria terminalis (BNST) in gestational protein-restricted male offspring. Nutritional Neuroscience. 27(11). 1250–1268. 1 indexed citations
2.
Lopes, A., et al.. (2022). A dataflow execution engine for automatic visual inspection of production lines. IECON 2022 – 48th Annual Conference of the IEEE Industrial Electronics Society. 1–6. 1 indexed citations
3.
Lopes, A., et al.. (2019). Ensemble Learning Approaches for Retinal Vessel Segmentation. 1–4. 5 indexed citations
4.
Coudert, L. H., Bérenger Gans, Fabian Holzmeier, et al.. (2018). Experimental and theoretical threshold photoelectron spectra of methylene. The Journal of Chemical Physics. 149(22). 224304–224304. 9 indexed citations
5.
Lopes, A., Ana João Rodrigues, João Cerqueira, et al.. (2012). Gestational protein restriction induces CA3 dendritic atrophy in dorsal hippocampal neurons but does not alter learning and memory performance in adult offspring. International Journal of Developmental Neuroscience. 31(3). 151–156. 11 indexed citations
6.
Lopes, A., et al.. (2011). Transfer Learning for Human Action Recognition. 11. 352–359. 5 indexed citations
7.
Machado, Alexei Manso Corrêa, et al.. (2010). MammoSys: A content-based image retrieval system using breast density patterns. Computer Methods and Programs in Biomedicine. 99(3). 289–297. 56 indexed citations
8.
Avila, Sandra, A. Lopes, Antonio da Luz, & Arnaldo de Albuquerque Araújo. (2010). VSUMM: A mechanism designed to produce static video summaries and a novel evaluation method. Pattern Recognition Letters. 32(1). 56–68. 453 indexed citations breakdown →
9.
Lopes, A., et al.. (2009). Detecting Buildings in Historical Photographs Using Bag-of-Keypoints. 3. 276–283. 4 indexed citations
10.
Lopes, A., et al.. (2009). Nude Detection in Video Using Bag-of-Visual-Features. 49 indexed citations
11.
12.
Lopes, A., et al.. (2009). Improving the threshold performance of maximum likelihood estimation of direction of arrival. Signal Processing. 90(5). 1582–1590. 16 indexed citations
13.
Lopes, A., et al.. (2009). Spatio-Temporal Frames in a Bag-of-Visual-Features Approach for Human Actions Recognition. 315–321. 6 indexed citations
14.
15.
Lopes, A. & Crediné Silva de Menezes. (2006). Avaliando o EpA – um estudo de caso na aprendizagem de computação. 1(1). 1 indexed citations
16.
Lopes, A., et al.. (2005). EpA: texto e discussão integrados para apoiar aaprendizagem por meio de escrita cooperativa. Brazilian Symposium on Computers in Education (Simpósio Brasileiro de Informática na Educação - SBIE). 1(1). 243–253. 1 indexed citations
17.
Marafão, Fernando Pinhabel, S.M. Deckmann, & A. Lopes. (2004). Robust delta operator-based discrete systems for fixed-point DSP implementations. 3. 1764–1770. 2 indexed citations
18.
Lopes, A., et al.. (2002). Frequency detection by linear prediction using total least squares criterion. 2. 823–826. 3 indexed citations
19.
Lopes, A., et al.. (2002). Improving the threshold of the minimum-norm frequency detection method. 60–65. 1 indexed citations
20.
Boaventura, Wallace C., A. Semlyen, Mohammad Reza Iravani, & A. Lopes. (2001). Sparse Network Equivalent Based on Time-Domain Fitting. IEEE Power Engineering Review. 21(11). 63–63. 12 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by SangEun Han Breakdown of academic impact, for papers by A. Webster Breakdown of academic impact, for papers by Rekha Vig Breakdown of academic impact, for papers by Steven Bergner Breakdown of academic impact, for papers by Daniel V. Klein Breakdown of academic impact, for papers by Hee-Jung Lee Breakdown of academic impact, for papers by Thomas Allen Breakdown of academic impact, for papers by Marco Ramilli Breakdown of academic impact, for papers by Weixiang Liu Breakdown of academic impact, for papers by Hung Son Nguyen
Rankless by CCL
2026