第五講額外課程:空間頻率

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Woody (對話 | 貢獻)
(What are gratings?)
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Woody (對話 | 貢獻)
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==Human contrast sensitivity function(對比敏感函數)== ==Human contrast sensitivity function(對比敏感函數)==
*Contrast thresholds and contrast sensitivity function (CSF) *Contrast thresholds and contrast sensitivity function (CSF)
- +*[[Image:05Human contrast sensitivity function(.png]]
===Structural basis of CSF=== ===Structural basis of CSF===
*selective adaptation(選擇性適應) *selective adaptation(選擇性適應)
- +*[[Image:05selective adaptation.png]]
===Selective adaptation=== ===Selective adaptation===
*原理 *原理
- +*[[Image:05Selective adaptation2.png]]
*回家實驗看看 *回家實驗看看
 +*[[Image:05Selective adaptation3.png]]
==Effect of spatial frequency== ==Effect of spatial frequency==
*Low and high *Low and high
 +[[Image:05Effect of spatial frequency.png]]
*Mosaic 瑪塞克 *Mosaic 瑪塞克
- +*[[Image:05Mosaic.png]]
 +*[[Image:05Mosaic2.png]]
===How to make mosaic=== ===How to make mosaic===
- +[[Image:05How to make mosaic.png]]
===Discrimination??=== ===Discrimination??===
 +[[Image:05Discrimination.png]]
==Symmetry== ==Symmetry==
*新瓶裝舊酒 *新瓶裝舊酒
*low SF of fig 5.48 *low SF of fig 5.48
 +[[Image:05Symmetry.png]]
 +
==補充美美的:)== ==補充美美的:)==
*CHUCK CLOSE *CHUCK CLOSE
 +[[Image:05CHUCK CLOSE.png]]
 +
==補充資料== ==補充資料==
*舊文章 有關空間頻率 *舊文章 有關空間頻率
*請回去看一下 *請回去看一下
*有益無害:) *有益無害:)
-[[知覺心理學]]+返回[[知覺心理學]]

當前修訂版本

目錄

[編輯] 空間頻率

  • 知覺心理學額外課程

[編輯] 一張圖片開始

  • Dr. Angry and Mr. Smile:Philippe G. Schyns*, Aude Oliva*

Image:05Dr. Angry and Mr.png

[編輯] Local analysis

  • scale

Image:05Local analysis.png

[編輯] Coarse scale and fine scale

  • Smile woman(coarse) and unsmile man(fine)

Image:05Coarse scale and fine scale.png

  • puzzle in fine

Image:05Coarse scale and fine scale 2.png

  • puzzle in coarse

Image:05Coarse scale and fine scale 3.png

[編輯] What is the unit of scale?

  • Sinusoidal grating(正弦波柵)

Image:05Sinusoidal grating(正弦波柵).png

[編輯] What are gratings?

  • Four defining characteristics(特徵)
  • Saptial frequency(空間頻率)
    • Cycles per degree (visual angle)
  • 在一臂之遠圖5.6具有1.0cycle/degree
  • Contrast(對比)
    • 0~100%
  • Printing 約90%
  • Orientation(方位)
  • Spatial phase(空間相位)

[編輯] Spatial phase

  • phase在相加時效果
  • Image:05Spatial phase.png
  • Image:05Spatial phase2.png

[編輯] Grating 的加成

  • 影像加成
  • Image:05Grating.png

[編輯] 自然情境的加成

  • Coarse to fine

Image:05Coarse to fine.png

[編輯] Gratings and contrast sensitivity

  • Measure performance(表現)

Image:05Measure performance.png

[編輯] Cut-off frequency

Transfer function (遞變函數) Image:05Transfer function (遞變函數).png

[編輯] Fourier analysis

Discrete Fourier Transform analysis 間斷傅立葉傳換分析 Image:05Fourier analysis.png

[編輯] Fourier synthesis(合成)之一

  • 分析的反向
  • 如:方波
  • Image:05Fourier synthesis.png

[編輯] Fourier synthesis之二

  • Image:05Fourier synthesis2.png

[編輯] Fourier synthesis之三

  • Image:05Fourier synthesis3.png

[編輯] Fourier synthesis之四

  • Image:05Fourier synthesis4.png

[編輯] Fourier synthesis之五

  • Image:05Fourier synthesis5.png

[編輯] Fourier synthesis之六

  • 介紹一本書
  • 世界第一簡單傅立葉分析
  • Image:05Fourier synthesis6.png

[編輯] Human contrast sensitivity function(對比敏感函數)

  • Contrast thresholds and contrast sensitivity function (CSF)
  • Image:05Human contrast sensitivity function(.png

[編輯] Structural basis of CSF

  • selective adaptation(選擇性適應)
  • Image:05selective adaptation.png

[編輯] Selective adaptation

  • 原理
  • Image:05Selective adaptation2.png
  • 回家實驗看看
  • Image:05Selective adaptation3.png

[編輯] Effect of spatial frequency

  • Low and high

Image:05Effect of spatial frequency.png

[編輯] How to make mosaic

Image:05How to make mosaic.png

[編輯] Discrimination??

Image:05Discrimination.png

[編輯] Symmetry

  • 新瓶裝舊酒
  • low SF of fig 5.48

Image:05Symmetry.png

[編輯] 補充美美的:)

  • CHUCK CLOSE

Image:05CHUCK CLOSE.png

[編輯] 補充資料

  • 舊文章 有關空間頻率
  • 請回去看一下
  • 有益無害:)

返回知覺心理學