Ralph Hartley

2.3k total citations · 2 hit papers
18 papers, 1.6k citations indexed

About

Ralph Hartley is a scholar working on Computer Vision and Pattern Recognition, Aerospace Engineering and Artificial Intelligence. According to data from OpenAlex, Ralph Hartley has authored 18 papers receiving a total of 1.6k indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Computer Vision and Pattern Recognition, 7 papers in Aerospace Engineering and 5 papers in Artificial Intelligence. Recurrent topics in Ralph Hartley's work include Advanced Image and Video Retrieval Techniques (3 papers), Image Retrieval and Classification Techniques (3 papers) and Image Processing Techniques and Applications (3 papers). Ralph Hartley is often cited by papers focused on Advanced Image and Video Retrieval Techniques (3 papers), Image Retrieval and Classification Techniques (3 papers) and Image Processing Techniques and Applications (3 papers). Ralph Hartley collaborates with scholars based in United States and Israel. Ralph Hartley's co-authors include Harold Szu, Bezalel Peleg, Joseph Naor, David Avnir, Behrooz Kamgar-Parsi, Azriel Rosenfeld, Tsai-Hong Hong, Michael Shneier, C. A. Sullivan and David W. Aha and has published in prestigious journals such as IEEE Transactions on Pattern Analysis and Machine Intelligence, Proceedings of the IEEE and Physics Letters A.

In The Last Decade

Ralph Hartley

18 papers receiving 1.5k citations

Hit Papers

Fast simulated annealing 1984 2026 1998 2012 1987 1984 250 500 750
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. Fast simulated annealing
    1987 775 citations Harold Szu, Ralph Hartley Physics Letters A profile →
  2. Multiple Resolution Texture Analysis and Classification
    1984 576 citations Bezalel Peleg, Joseph Naor et al. IEEE Transactions on Pattern Analysis and Machine Intelligence profile →

Peers

Ralph Hartley
Jonathan Blackledge United Kingdom
Wai Wan Tsang Hong Kong
Haomin Zhou United States
Richard Nock France
Marco Cuturi France
Richard A. Redner United States
Ioannis Andreadis Greece
Vladimir Spokoiny Germany
Ramesh Menon United States
Jonathan Blackledge United Kingdom
Ralph Hartley
Citations per year, relative to Ralph Hartley Ralph Hartley (= 1×) peers Jonathan Blackledge

Countries citing papers authored by Ralph Hartley

Since Specialization
Citations

This map shows the geographic impact of Ralph Hartley'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 Ralph Hartley with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ralph Hartley more than expected).

Fields of papers citing papers by Ralph Hartley

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ralph Hartley. 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 Ralph Hartley. The network helps show where Ralph Hartley may publish in the future.

Co-authorship network of co-authors of Ralph Hartley

This figure shows the co-authorship network connecting the top 25 collaborators of Ralph Hartley. A scholar is included among the top collaborators of Ralph Hartley 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 Ralph Hartley. Ralph Hartley is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

18 of 18 papers shown
1.
Hartley, Ralph, et al.. (2018). Using Roads for Autonomous Air Vehicle Guidance. IEEE Transactions on Intelligent Transportation Systems. 19(12). 3840–3849. 11 indexed citations
2.
Hartley, Ralph, et al.. (2013). Autonomous Release of a Snagged Solar Array: Technologies and Laboratory Demonstration. Journal of Spacecraft and Rockets. 51(1). 86–95. 1 indexed citations
3.
Hartley, Ralph, et al.. (2012). Autonomous Release of a Snagged Solar Array: Technologies and Laboratory Demonstration. AIAA Guidance, Navigation, and Control Conference. 1 indexed citations
4.
Gupta, Kalyan Moy, et al.. (2009). Adaptive maritime video surveillance. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 7346. 734609–734609. 10 indexed citations
5.
Pless, Robert, Michael Dixon, Nathan Jacobs, et al.. (2009). Persistence and tracking: Putting vehicles and trajectories in context. 4. 1–8. 4 indexed citations
6.
Hartley, Ralph, et al.. (2006). A Structured Light Range Imaging System Using a Moving Correlation Code. 931–937. 1 indexed citations
7.
Kellogg, J.C., C. A. Sullivan, J. P. Dahlburg, et al.. (2002). The NRL micro tactical expendable (MITE) air vehicle. The Aeronautical Journal. 106(1062). 431–442. 24 indexed citations
8.
Hartley, Ralph, et al.. (2002). Experiments with the subsumption architecture. 1652–1658. 27 indexed citations
9.
Kellogg, J.C., J. P. Dahlburg, John Gardner, et al.. (2001). The NRL MITE Air Vehicle. Defense Technical Information Center (DTIC). 17 indexed citations
10.
Kamgar-Parsi, Behrooz, et al.. (2001). <title>Three-dimensional computer vision for micro air vehicles</title>. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 4363. 189–197. 13 indexed citations
11.
Hartley, Ralph, et al.. (1998). <title>Moving-correlation-code triangulation range imaging</title>. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 3201. 91–97. 1 indexed citations
12.
Szu, Harold & Ralph Hartley. (1987). Nonconvex optimization by fast simulated annealing. Proceedings of the IEEE. 75(11). 1538–1540. 86 indexed citations
13.
Szu, Harold & Ralph Hartley. (1987). Fast simulated annealing. Physics Letters A. 122(3-4). 157–162. 775 indexed citations breakdown →
14.
Hartley, Ralph. (1985). A Gaussian-weighted multiresolution edge detector. Computer Vision Graphics and Image Processing. 30(1). 70–83. 20 indexed citations
15.
Hartley, Ralph. (1985). Segmentation of optical flow fields by pyramid linking. Pattern Recognition Letters. 3(4). 253–262. 19 indexed citations
16.
Gross, Ari, Ralph Hartley, & Azriel Rosenfeld. (1985). A fast parallel algorithm for dot linking in Glass patterns. Pattern Recognition Letters. 3(4). 263–270. 4 indexed citations
17.
Peleg, Bezalel, Joseph Naor, Ralph Hartley, & David Avnir. (1984). Multiple Resolution Texture Analysis and Classification. IEEE Transactions on Pattern Analysis and Machine Intelligence. PAMI-6(4). 518–523. 576 indexed citations breakdown →
18.
Hong, Tsai-Hong, Michael Shneier, Ralph Hartley, & Azriel Rosenfeld. (1983). Using pyramids to detect good continuation. IEEE Transactions on Systems Man and Cybernetics. SMC-13(4). 631–635. 22 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.

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