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מערכות ראיה ושמיעה Visual and Auditory Systems. Spectrum.

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Presentation on theme: "מערכות ראיה ושמיעה Visual and Auditory Systems. Spectrum."— Presentation transcript:

1 מערכות ראיה ושמיעה Visual and Auditory Systems

2 Spectrum

3 Photometry Measuring light …

4 Colorimetry Modeling of color sensation Color addition Color subtraction Image processing (noise removal, edge detection, compression, inpainintg etc.) Bayer filter

5 Colorimetry CIE standard observer RGB color addition HSV CMYK color subtraction YIQ, YUV television broadcasting YCbCr digital television transmission, JPEG CIE gamut HSV gamut

6 Dichromatism: Colorimetry

7 The Human Visual System (HVS)

8

9 Vision Research Physiology Psychophysics Automatic Gain Control

10 Hermann’s Grid Vision Research

11 HVS is sensitive to: Local features. Spatial frequency (gratings). Contrast Sensitivity Function

12 Signal Representation How does the HVS represent images? Fourier series. Gabor functions. Wavelets

13 The Ear

14 Subjective Hearing Properties of the human auditory system are utilized in audio compression algorithms such as MP3.

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