Ravi Kumar

964 total citations
61 papers, 682 citations indexed

About

Ravi Kumar is a scholar working on Computer Vision and Pattern Recognition, Atomic and Molecular Physics, and Optics and Artificial Intelligence. According to data from OpenAlex, Ravi Kumar has authored 61 papers receiving a total of 682 indexed citations (citations by other indexed papers that have themselves been cited), including 46 papers in Computer Vision and Pattern Recognition, 17 papers in Atomic and Molecular Physics, and Optics and 14 papers in Artificial Intelligence. Recurrent topics in Ravi Kumar's work include Chaos-based Image/Signal Encryption (33 papers), Advanced Steganography and Watermarking Techniques (20 papers) and Orbital Angular Momentum in Optics (12 papers). Ravi Kumar is often cited by papers focused on Chaos-based Image/Signal Encryption (33 papers), Advanced Steganography and Watermarking Techniques (20 papers) and Orbital Angular Momentum in Optics (12 papers). Ravi Kumar collaborates with scholars based in India, Israel and China. Ravi Kumar's co-authors include Basanta Bhaduri, Chenggen Quan, Phool Singh, Fuqiang Zhong, Joseph Rosen, John T. Sheridan, Vijayakumar Anand, Naveen K. Nishchal, Rekha Vig and Y. Xiong and has published in prestigious journals such as SHILAP Revista de lepidopterología, Applied Physics Letters and Scientific Reports.

In The Last Decade

Ravi Kumar

57 papers receiving 646 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Ravi Kumar India	17	515	148	147	87	78	61	682
Xueju Shen China	14	629 1.2×	211 1.4×	190 1.3×	115 1.3×	37 0.5×	67	759
Yi Qin China	19	638 1.2×	159 1.1×	177 1.2×	158 1.8×	19 0.2×	34	726
Matthew Fickus United States	16	314 0.6×	142 1.0×	31 0.2×	44 0.5×	72 0.9×	53	824
Yabin Zhang China	16	357 0.7×	86 0.6×	280 1.9×	166 1.9×	66 0.8×	40	530
Xiongjun Zhang China	16	417 0.8×	66 0.4×	26 0.2×	76 0.9×	32 0.4×	50	811
Roummel F. Marcia United States	14	221 0.4×	91 0.6×	68 0.5×	61 0.7×	313 4.0×	94	895
Liansheng Sui China	23	1.4k 2.7×	283 1.9×	211 1.4×	292 3.4×	43 0.6×	61	1.6k
Wenqi He China	23	1.2k 2.3×	250 1.7×	376 2.6×	383 4.4×	136 1.7×	108	1.6k
Hala S. El‐sayed Egypt	20	808 1.6×	226 1.5×	27 0.2×	99 1.1×	52 0.7×	77	1.1k
Qiwen Ran China	23	1.0k 2.0×	208 1.4×	126 0.9×	61 0.7×	38 0.5×	62	1.4k

Countries citing papers authored by Ravi Kumar

Since Specialization

Citations

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

Fields of papers citing papers by Ravi Kumar

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ravi Kumar

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

All Works

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20 of 20 papers shown

Reddy, Salla Gangi, et al.. (2025). Free space evolution of perfect optical vortices through interferometric analysis. Optics and Lasers in Engineering. 194. 109178–109178.

Vardhan, Harsh, et al.. (2025). Coded aperture imaging with helico-conical beams. Applied Physics B. 131(12).

Kumar, Ravi, et al.. (2025). Asymmetric optical cryptosystem using C-point polarization singularity speckles and polar decomposition in 2D-NS-LCT domain. Physica Scripta. 100(5). 55504–55504.

Vardhan, Harsh, et al.. (2024). Optical phase image encryption using stokes parameters and singular value decomposition. Journal of Optics. 26(11). 115701–115701. 1 indexed citations

Kumar, Ravi, et al.. (2024). Advances in Optical Visual Information Security: A Comprehensive Review. Photonics. 11(1). 99–99. 13 indexed citations

Kumar, Ravi, et al.. (2024). Phase only CGH and sparse separation based approach to biometric image authentication. Journal of Optics. 3 indexed citations

Vardhan, Harsh, et al.. (2024). Nonlinear multi-image optical authentication based on QR decomposition and Kramer-Kronig relations. Physica Scripta. 99(12). 125559–125559.

Xiong, Y., et al.. (2023). Collision in a phase-only asymmetric cryptosystem based on interference and phase-truncated Fourier transforms. Optical and Quantum Electronics. 55(8). 3 indexed citations

Xiong, Y., et al.. (2023). Hybrid plaintext attack for a cryptosystem based on interference and the phase-retrieval technique. Applied Optics. 62(16). 4301–4301. 1 indexed citations

10.

Kahro, Tauno, Ravi Kumar, Kaupo Kukli, et al.. (2023). Enhanced design of multiplexed coded masks for Fresnel incoherent correlation holography. Scientific Reports. 13(1). 7390–7390. 13 indexed citations

11.

Kahro, Tauno, Ravi Kumar, Kaupo Kukli, et al.. (2023). Enhanced design of pure phase greyscale diffractive optical elements by phase retrieval assisted multiplexing of complex functions. DSpace repository (University of Tartu). 2–2. 2 indexed citations

12.

Xiong, Y., et al.. (2023). Collision in double-image encryption scheme based on spatial encoding and phase-truncation Fourier transforms. Applied Optics. 62(31). 8416–8416. 3 indexed citations

13.

Prabhakar, Shashi, Harsh Vardhan, Ravi Kumar, et al.. (2023). An Asymmetric Optical Cryptosystem Using Physically Unclonable Functions in the Fresnel Domain. SHILAP Revista de lepidopterología. 8–8. 2 indexed citations

14.

Vardhan, Harsh, Shashi Prabhakar, Sakshi Sakshi, et al.. (2023). Multi-User Nonlinear Optical Cryptosystem Based on Polar Decomposition and Fractional Vortex Speckle Patterns. Photonics. 10(5). 561–561. 14 indexed citations

15.

Kumar, Ravi, Sakshi Sakshi, & Kehar Singh. (2022). An asymmetric optical cryptosystem based on Radon transform for phase image encryption. 31(7). 2 indexed citations

16.

Kumar, Ravi, et al.. (2022). Multiuser optical image authentication platform based on sparse constraint and polar decomposition in Fresnel domain. Physica Scripta. 97(11). 115101–115101. 26 indexed citations

17.

Anand, Vijayakumar, Svetlana N. Khonina, Ravi Kumar, et al.. (2022). Three-Dimensional Incoherent Imaging Using Spiral Rotating Point Spread Functions Created by Double-Helix Beams [Invited]. Nanoscale Research Letters. 17(1). 37–37. 26 indexed citations

18.

Kumar, Ravi, Vijayakumar Anand, & Joseph Rosen. (2022). 3d Single Shot Lensless Incoherent Optical Imaging Using Coded Phase Aperture System with Point Response of Scattered Airy Beams. SSRN Electronic Journal. 2 indexed citations

19.

Kumar, Ravi & Basanta Bhaduri. (2017). Optical image encryption in Fresnel domain using spiral phase transform. Journal of Optics. 19(9). 95701–95701. 40 indexed citations

20.

Kumar, Ravi & Basanta Bhaduri. (2017). Double image encryption in Fresnel domain using wavelet transform, gyrator transform and spiral phase masks. 10449. 25–25. 3 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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