M
Motoi Iwata
Researcher at Osaka Prefecture University
Publications - 67
Citations - 696
Motoi Iwata is an academic researcher from Osaka Prefecture University. The author has contributed to research in topics: Digital watermarking & Watermark. The author has an hindex of 9, co-authored 62 publications receiving 610 citations.
Papers
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Journal ArticleDOI
Segmentation of Page Images Using the Area Voronoi Diagram
TL;DR: It is confirmed that the proposed method of page segmentation based on the approximated area Voronoi diagram is effective for extraction of body text regions, and it is as efficient as other methods based on connected component analysis.
Journal Article
Digital Steganography Utilizing Features of JPEG Images
Proceedings ArticleDOI
Speech balloon and speaker association for comics and manga understanding
Christophe Rigaud,Nam Le Thanh,Jean-Christophe Burie,Jean-Marc Ogier,Motoi Iwata,Eiki Imazu,Koichi Kise +6 more
TL;DR: A speech balloon and comic character association method able to retrieve which character is emitting which speech balloon is proposed based on geometric graph analysis and anchor point selection is proposed.
Journal ArticleDOI
A Survey of Comics Research in Computer Science
TL;DR: In this article, the authors review the previous research about comics in computer science to state what has been done and give some insights about the main outlooks, including user interaction, artificial intelligence, human-computer interaction, etc.
Proceedings ArticleDOI
Digital watermarking method for tamper detection and recovery of JPEG images
TL;DR: The proposed method embeds the check symbols corresponding to an information-reduced original image into the LSBs of the quantized DCT coefficients in a JPEG image directly, therefore the method completely extracts the embedded data from watermarked JPEG images.