Takashi Obi

2.6k total citations · 1 hit paper
107 papers, 1.9k citations indexed

About

Takashi Obi is a scholar working on Radiology, Nuclear Medicine and Imaging, Computer Vision and Pattern Recognition and Radiation. According to data from OpenAlex, Takashi Obi has authored 107 papers receiving a total of 1.9k indexed citations (citations by other indexed papers that have themselves been cited), including 49 papers in Radiology, Nuclear Medicine and Imaging, 36 papers in Computer Vision and Pattern Recognition and 27 papers in Radiation. Recurrent topics in Takashi Obi's work include Medical Imaging Techniques and Applications (35 papers), Advanced MRI Techniques and Applications (21 papers) and Radiation Detection and Scintillator Technologies (20 papers). Takashi Obi is often cited by papers focused on Medical Imaging Techniques and Applications (35 papers), Advanced MRI Techniques and Applications (21 papers) and Radiation Detection and Scintillator Technologies (20 papers). Takashi Obi collaborates with scholars based in Japan, United States and Indonesia. Takashi Obi's co-authors include Nagaaki Ohyama, Masahiro Yamaguchi, Kazuhiro Gono, Yasushi Sano, Shigeaki Yoshida, Hirohisa Machida, Yasuo Hamamoto, Takao Endo, H. Suzuki and Hideo Murayama and has published in prestigious journals such as Optics Letters, Optics Express and IEEE Access.

In The Last Decade

Takashi Obi

95 papers receiving 1.8k citations

Hit Papers

align trajectories

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.

Appearance of enhanced tissue features in narrow-band endoscopic imaging

2004 688 citations Takashi Obi, Masahiro Yamaguchi et al. Journal of Biomedical Optics profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Takashi Obi Japan	20	648	607	437	344	300	107	1.9k
Nagaaki Ohyama Japan	25	651 1.0×	608 1.0×	384 0.9×	910 2.6×	292 1.0×	215	2.9k
Masahiro Oda Japan	26	320 0.5×	557 0.9×	913 2.1×	559 1.6×	764 2.5×	180	3.3k
Jacob Sosna Israel	30	567 0.9×	792 1.3×	1.3k 2.9×	201 0.6×	630 2.1×	138	3.3k
Ivo Wolf Germany	23	693 1.1×	306 0.5×	786 1.8×	936 2.7×	122 0.4×	124	2.6k
Yukako Yagi United States	34	367 0.6×	642 1.1×	990 2.3×	572 1.7×	524 1.7×	127	3.6k
Νικόλαος Δικαίος United Kingdom	23	131 0.2×	428 0.7×	1.2k 2.8×	93 0.3×	66 0.2×	65	1.7k
David S. Paik United States	24	205 0.3×	914 1.5×	1.1k 2.5×	393 1.1×	627 2.1×	55	2.2k
Darren Treanor United Kingdom	30	673 1.0×	498 0.8×	1.0k 2.3×	664 1.9×	1.2k 4.1×	145	3.8k
William B. Eubank United States	18	193 0.3×	440 0.7×	1.3k 3.0×	431 1.3×	185 0.6×	31	2.0k
Atilla P. Kiraly United States	14	138 0.2×	865 1.4×	1.3k 2.9×	318 0.9×	120 0.4×	52	2.1k

Countries citing papers authored by Takashi Obi

Since Specialization

Citations

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

Fields of papers citing papers by Takashi Obi

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Takashi Obi

This figure shows the co-authorship network connecting the top 25 collaborators of Takashi Obi. A scholar is included among the top collaborators of Takashi Obi 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 Takashi Obi. Takashi Obi 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

Fatichah, Chastine, et al.. (2025). FocusAugMix: A data augmentation method for enhancing Acute Lymphoblastic Leukemia classification. Intelligent Systems with Applications. 26. 200512–200512.

Ohyama, Nagaaki, et al.. (2024). Human pose feature enhancement for human anomaly detection and tracking. International Journal of Information Technology. 17(3). 1311–1320. 4 indexed citations

Suzuki, H., et al.. (2024). Security-enhanced firmware management scheme for smart home IoT devices using distributed ledger technologies. International Journal of Information Security. 23(3). 1927–1937. 10 indexed citations

Obi, Takashi, et al.. (2024). Integrating prior knowledge to build transformer models. International Journal of Information Technology. 16(3). 1279–1292. 21 indexed citations

Ohyama, Nagaaki, et al.. (2024). The improvement of ground truth annotation in public datasets for human detection. Machine Vision and Applications. 35(3). 1 indexed citations

Ishikawa, Masahiro, Takaya Ichimura, T Murakami, et al.. (2023). Effects of dimension reduction of hyperspectral images in skin gross pathology. Skin Research and Technology. 29(2). e13270–e13270. 6 indexed citations

Suzuki, H., et al.. (2023). Generation of RGB EVG stained image from hyperspectral H and E stained image using generative adversarial network (GAN). 12–12. 1 indexed citations

Suzuki, H., et al.. (2023). XAI-based cross-ensemble feature ranking methodology for machine learning models. International Journal of Information Technology. 15(4). 1759–1768. 14 indexed citations

Suzuki, H., et al.. (2023). Interpretable machine learning analysis to identify risk factors for diabetes using the anonymous living census data of Japan. Health and Technology. 13(1). 119–131. 4 indexed citations

10.

Suzuki, H., et al.. (2023). Generative adversarial network based digital stain conversion for generating RGB EVG stained image from hyperspectral H&E stained image. Journal of Biomedical Optics. 28(5). 56501–56501. 3 indexed citations

11.

Obi, Takashi, et al.. (2021). Generation of attenuation correction factors from time-of-flight PET emission data using high-resolution residual U-net. Biomedical Physics & Engineering Express. 7(6). 65006–65006. 1 indexed citations

12.

Kobayashi, Naoki, H. Suzuki, Masahiro Ishikawa, et al.. (2020). Telepathology Support System with Gross Specimen Image Using High Resolution 4K Multispectral Camera. PubMed. 2020. 1388–1391. 2 indexed citations

13.

Suzuki, H., et al.. (2020). Patient Consent Management by a Purpose-Based Consent Model for Electronic Health Record Based on Blockchain Technology. Healthcare Informatics Research. 26(4). 265–273. 35 indexed citations

14.

Suzuki, H., et al.. (2020). Application of Blockchain to Maintaining Patient Records in Electronic Health Record for Enhanced Privacy, Scalability, and Availability. Healthcare Informatics Research. 26(1). 3–3. 62 indexed citations

15.

Obi, Takashi, et al.. (2016). A study on utilizing the Public Certification Service for Individuals in the qualification of medical insurance. IEICE Technical Report; IEICE Tech. Rep.. 116(23). 1–6.

16.

Tashima, Hideaki, Hiroyuki Kudo, Hideo Murayama, et al.. (2014). Restoration of lost frequency in OpenPET imaging: comparison between the method of convex projections and the maximum likelihood expectation maximization method. Radiological Physics and Technology. 7(2). 329–339. 2 indexed citations

17.

Obi, Takashi, et al.. (2010). Empirical analysis of internet identity misuse: Case study of south Korean real name system. 27–34. 1 indexed citations

18.

Hashimoto, Noriaki, Yuri Murakami, Masahiro Yamaguchi, Takashi Obi, & Nagaaki Ohyama. (2010). Color Enhancement of Multispectral Images for Effective Visualization. Conference on Colour in Graphics Imaging and Vision. 5(1). 282–288. 1 indexed citations

19.

Obi, Takashi, Masahiro Yamaguchi, Hideaki Haneishi, et al.. (2005). Investigaton of the effects of inter-crystal scatter reduction on reconstructed images in the jPET-D4 scanner.. 23(5). 318–327. 4 indexed citations

20.

Murakami, Yuri, et al.. (2001). Multispectral Image Compression for Color Reproduction; Weighted KLT and Adaptive Quantization based on Visual Color Perception. Color and Imaging Conference. 9(1). 68–72. 4 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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