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Chromospheric reflection layer for high-frequency acoustic wave

Chromospheric reflection layer for high-frequency acoustic wave

Chromospheric reflection layer for high-frequency acoustic wave. Takashi Sekii Solar Physics Division, NAOJ. Outline. Introduction on high-frequency oscillations What Jefferies et al (1997) did Our attempt with MDI data Ongoing effort with TON data SP data revisited.

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717 views • 54 slides
Noise Filtering & Edge Detection

Noise Filtering & Edge Detection

Noise Filtering & Edge Detection. Jeremy Wyatt. Filtering. Last time we saw that we could detect edges by calculating the intensity change (gradient) across the image We saw that we could implement this using the idea of filtering. Linear filtering: the algorithm. for i=2:image_height-1

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376 views • 27 slides
Image filtering

Image filtering

Image filtering. Hybrid Images, Oliva et al., http://cvcl.mit.edu/hybridimage.htm. Image filtering. Hybrid Images, Oliva et al., http://cvcl.mit.edu/hybridimage.htm. Reading. Szeliski, Chapter 3.1-3.2. What is an image?. Images as functions.

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327 views • 22 slides
Image filtering

Image filtering

Image filtering. Hybrid Images, Oliva et al., http://cvcl.mit.edu/hybridimage.htm. Image filtering. Hybrid Images, Oliva et al., http://cvcl.mit.edu/hybridimage.htm. Reading. Szeliski, Chapter 3.1-3.2. What is an image?. Images as functions.

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226 views • 22 slides
Laboratory of Image Processing

Laboratory of Image Processing

Laboratory of Image Processing. Pier Luigi Mazzeo pierluigi.mazzeo@cnr.it July 24, 2014. The Fourier Transform with images. Display the obtained fft image. Download from my website the fftshow function , put it in your work directory. The fft examples. The fft examples.

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289 views • 12 slides

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