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Image Processing Lab (Yukiyasu Yoshinaga)
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An image processing lab that has computers find lines in images.
AboutAbout the lab
Understanding images through the direction of lines
Yukiyasu Yoshinaga's lab studies how computers recognize lines in images.
The lab investigates a line recognition method that is unaffected by contrast, based on the distribution of orientations of luminance gradient vectors.
It applies this method to medical images and is also building computer-aided diagnosis systems.
Key terms
- Luminance gradient vector
- A vector representing the direction in which image brightness increases most steeply and the magnitude of that change
- Contrast
- The difference between the bright and dark areas of an image
- Computer-aided diagnosis system
- A system that analyzes medical images by computer to assist diagnosis
ResearchResearch themes
Recognizing lines is an important topic for computers to understand images. This lab studies a line recognition method based on the distribution of orientations of luminance gradient vectors, and is pursuing its application to medical images and the construction of computer-aided diagnosis systems.
View More ↗MembersFaculty
- Associate ProfessorYukiyasu Yoshinaga
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Testbuilding” Ectech2000 / CC BY-SA 4.0 (cropped)
- Related lab (Image Processing Lab): “Fundus photograph of a healthy right eye (OD) from a myopic female Asian patient. Age 22” OptometrusPrime / CC BY-SA 2.0 (cropped)
- Related lab (Pattern Recognition Lab): “Flying Ladybug pixel art mosaic” Copyleft / CC BY-SA 4.0 (cropped)
- Related lab (Pattern Recognition Lab (Kohei Inoe)): “PatternRecognition1” Jean Constant / CC BY-SA 4.0 (cropped)
- Related lab (Image Analysis and Processing Lab): “Cityscape and skyline by the Copenhagen Lakes, Denmark - ( )” Kristoffer Trolle from Copenhagen, Denmark / CC BY 2.0 (cropped)
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