04b visiual signal processing form shape
Transcript of 04b visiual signal processing form shape
![Page 1: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/1.jpg)
“Intuition tells us that the brain is complicated. We do complicated things, in immense variety. We breathe, cough, sneeze, vomit, mate, swallow, and urinate; we add and subtract, speak, and even argue, write, sing, and compose quartets, poems, novels, and plays; we play baseball and musical instruments. We perceive and think. How could the organ responsible for doing all that not be complex?”
Eye Brain and Vision : David Hubel
Visual Signal Processing: 2
![Page 2: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/2.jpg)
Visual Information Processing:
![Page 3: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/3.jpg)
Touch : Mono frequency system
1. Modality
2. Location
3. Timing
4. Intensity
![Page 4: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/4.jpg)
Hearing: Multi-frequency system
![Page 5: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/5.jpg)
Bheraghat Jabalpur MP
![Page 6: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/6.jpg)
Visual Signal Processing
1. Modality - EM
2. Location Form, shape, depth
3. Timing - Motion
4. Intensity -
![Page 7: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/7.jpg)
Retina
![Page 8: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/8.jpg)
Rods and Cones
Cones RodsLight Low High
Pigment Less More
Response Fast Slow
Use Day
Loss Blindness Night Blindness
Acuity High Low
Saturation Intense light Day light
Color Yes No
Fovea All Absent
Population Low High
![Page 9: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/9.jpg)
Phototransduction
LightDark
![Page 10: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/10.jpg)
Receptive Field
![Page 11: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/11.jpg)
Receptive field
![Page 12: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/12.jpg)
Receptive field: Lateral Inhibition
![Page 13: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/13.jpg)
Receptive Field: Ganglion Cells
Stimulus M Cells P CellsColor No YesContrast High Low
Spatial Low High
Temporal High Low
![Page 14: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/14.jpg)
Ganglion Cell : Contrast discrimination
![Page 15: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/15.jpg)
![Page 16: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/16.jpg)
Lateral Geniculate Nucleus
![Page 17: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/17.jpg)
Lateral Geniculate Ganglia
![Page 18: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/18.jpg)
![Page 19: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/19.jpg)
Organization of Visual Cortex
![Page 20: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/20.jpg)
![Page 21: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/21.jpg)
Visual Cortex Architecture
![Page 22: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/22.jpg)
Visual Cortex Architecture
![Page 23: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/23.jpg)
Recording from Visual Cortex
![Page 24: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/24.jpg)
![Page 25: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/25.jpg)
Simple Cell
![Page 26: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/26.jpg)
Complex Cells
![Page 27: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/27.jpg)
Complex Cell
![Page 28: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/28.jpg)
Complex Cells
![Page 29: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/29.jpg)
Hypercomplex Cells
![Page 30: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/30.jpg)
Significance of Movement Cells
![Page 31: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/31.jpg)
Orientation Column
![Page 32: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/32.jpg)
![Page 33: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/33.jpg)
Orientation column of visual cortex
![Page 34: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/34.jpg)
Illusion of Edges: V2 in Monkey
![Page 35: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/35.jpg)
Inferior Temporal neuron response to Form
![Page 36: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/36.jpg)
![Page 37: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/37.jpg)
Face and Complex Form Recognition ITC
![Page 38: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/38.jpg)
![Page 39: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/39.jpg)
Blobs
40μm thick layer of upper cortex that has been processed histochemically to reveal the density of cytochrome oxidase, a mitochondrial enzyme involved in energy production
![Page 40: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/40.jpg)
Ocular dominance column
![Page 41: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/41.jpg)
![Page 42: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/42.jpg)
Visual Cortex Architecture
![Page 43: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/43.jpg)
Motion in the visual field
![Page 44: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/44.jpg)
![Page 45: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/45.jpg)
PET scan of MT area for Motion Processing
![Page 46: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/46.jpg)
Depth of vision
![Page 47: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/47.jpg)
Neuronal basis of stereoscopic vision
![Page 48: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/48.jpg)
AIT = anterior inferior temporal area; CIT = central inferior temporal area; LIP = lateral intraparietal area; Magno = magnocellular layers of the lateral geniculate nucleus; MST = medial superior temporal area; MT = middle temporal area; Parvo = parvocellular layers of the lateral geniculate nucleus; PIT = posterior inferior temporal area; VIP = ventral intraparietalarea.) (Based on Merigan and Maunsell 1993.)
![Page 49: 04b visiual signal processing form shape](https://reader035.fdocuments.us/reader035/viewer/2022081401/55840fe5d8b42a34708b47a2/html5/thumbnails/49.jpg)