Student written Research Laboratory Guidebook 2022

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Electrical, Electronics and Information Engineering 

Image & Media Engineering Laboratory

Professor / Masahiro IWAHASHI  Assistant Professor / Ryosuke HARAKAWA  Technical Staff / Kentaro YAMAURA

ProfessorMasahiro IWAHASHI

profiles and activiities profiles and activiities at nagaoka university of technology

Assistant ProfessorRyosuke HARAKAWA

profiles and activiities profiles and activiities at nagaoka university of technology

Technical StaffKentaro YAMAURA

profiles and activiities profiles and activiities at nagaoka university of technology
  • Research using images, sounds, texts, or anything multimedia!
  • Become a deep learning and optimization expert!
  • Be an excellent presenter that can impress anyone!


Prof. / Masahiro IWAHASHI, Assistant Prof. / Ryosuke HARAKAWA, Mr. Kentaro YAMAURA
Prof. Iwahashi is a person with wide range of knowledge in image processing, who actively conducts various joint researches. Assistant Prof. Harakawa, who just arrived in 2019, is a specialist in multimedia and a very eager teacher. Meanwhile, Mr. Yamaura is the person in charge of the technicals and will gladly help you if you were facing any technical problem.

Research Content

In this laboratory, we conduct researches on advanced image processing technology. As examples, we are currently researching super-resolution imaging to increase resolution of images, object detection algorithm to extract relevant objects from images, and text recognition technology to detect word characters appearing in images. Other than that, researches such as self-evaluation of road lines’ condition from in-vehicle camera images are also being conducted. Besides images, researches onto multimedia data such as sounds and texts are also conducted. For example, we conduct a research that analyses multimedia data from the Internet, to provide a more personalized contents to users.

Example of researches - to evaluate flood risk by analysing images and Web data

A Day in the Lab

In this laboratory, we hold a seminar session once a week with all of our members and professors to report and discuss the progress of our researches. No need to worry about the lack of experience or knowledge, because you can always ask our professors or refer the books. Therefore, our laboratory members will be equipped with the required logical reasonings and presentation skills when becoming a workforce in the future. In addition, our laboratory also holds events such as futsal and softball tournaments, cherry blossom viewing and picnic, and watching the Nagaoka Firework Show.

During a futsal tournament

Thesis Subjects

  • (D)Speech Enhancement and Anti-spoofing in Speaker Recognition by utilizing Phase Information
  • (D)Four-Dimensional Medical Image Compression by Using Non-Separable Integer Wavelet Transform
  • (D)A Study on Speech Classification Based on Deep Neural Network under Adverse Environments
  • (D)A Study on Speech Signal Processing for Noise Robust Speaker and Speech Recognition

The number of
PhD Graduates


Major employers of Graduates

  • NEC Solution Innovators
  • NTT Comware
  • NTT Advanced Technology
  • Renesas Electronics
  • Panasonic Device System Techno
  • Canon Imaging Systems
  • Tokyo Electron Device
  • CAROL System
  • Hitachi Solutions
  • ALPHA Systems
Writer : Electrical, Electronics and Information Engineering Muhammad Hilmi Bin Hamka
(Universiti Kuala Lumpur (Malaysia Japan Higher Education Program))