Non-LTE line formation with spatial variations in the Doppler width

The line detection method with robustnes

The line detection method with robustness against contrast and width variation applied in gradient vector field

✍ Yukiyasu Yoshinaga; Hidefumi Kobatake 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 596 KB

This paper proposes a new method of extracting lines characterized as long and narrow bright regions, or curvilinear convex regions, in images. Generally, the contrast and the line width cause difficulty in extraction of ridgelines and skeletons. Therefore, this paper proposes the line convergence v