Perceptual illusions | StereoScopic 3d

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ADS710 Advanced Human Factors presentation on Perceptual Illusions

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Perceptual illusions | StereoScopic 3d

  1. 1. Perceptual Illusions | ADS710 Advanced Human Factors Stereoscopic 3dKarenJantz JoeJancsics
  2. 2. FourRequirements Collecting Sensory Data 1. Stimuli (the images presented) 2. Sensory Organ (the eye) 3. Nerve Pathway (the optic nerve) 4. Processing in the Brain (the occipital lobes) (Coe)KarenJantz JoeJancsics
  3. 3. PerceptualIllusion “a perception that appears true but is false” (Coe)KarenJantz JoeJancsics
  4. 4. StereoImage Actual image is two slightly di erent two-dimensional imagesKarenJantz JoeJancsics
  5. 5. FusedImage Perceived image creates the illusion of depthKarenJantz JoeJancsics
  6. 6. MethodAnaglyph L R L R Red lter admits only the red image Cyan or Blue lter blocks the red, allowing the other colorsKarenJantz JoeJancsics
  7. 7. ExampleAnaglyph Images are viewed from di erent perspectives, but appear in the center of the retina in both eyes.KarenJantz JoeJancsics
  8. 8. RenderingHowItWorks Behind the Screen Images are shifted to Z Axis | Distance From Cameras Behind the Screen the left in the left Safe Range eyes image, and to Convergence Point (screen) the right in the right eyes image. In Front of the Screen L X Axis | Horizontal Separation RKarenJantz JoeJancsics
  9. 9. RenderingHowItWorks Behind the Screen Images are shifted to Z Axis | Distance From Cameras Behind the Screen the left in the left Safe Range eyes image, and to Convergence Point (screen) the right in the right eyes image. In Front of the Screen Convergence Point Little or no horizontal shift between left and right eye. L X Axis | Horizontal Separation RKarenJantz JoeJancsics
  10. 10. RenderingHowItWorks Behind the Screen Images are shifted to Z Axis | Distance From Cameras Behind the Screen the left in the left Safe Range eyes image, and to Convergence Point (screen) the right in the right eyes image. In Front of the Screen Convergence Point Little or no horizontal shift between left and right eye. In Front of the Screen Images are shifted to L R the right in the left eyes image, and to X Axis | Horizontal Separation the left in the right eyes image.KarenJantz JoeJancsics
  11. 11. RenderingExamplesKarenJantz JoeJancsics
  12. 12. RenderingExamplesKarenJantz JoeJancsics
  13. 13. Bibliography Coe, Marlana. “Sensation and Perception.” Human Factors for Technical Communicators. New York: Wiley Computer Publishing, 1996. pp 5-32. Print. “Cone Cell.” Wikipedia, The Free Encyclopedia. Wikimedia Foundation, Inc. 30 October 2011. Web. 6 November 2011. “Stereopsis.” Wikipedia, The Free Encyclopedia. Wikimedia Foundation, Inc. 22 October 2011. Web. 6 November 2011. “Stereoscopy.” Wikipedia, The Free Encyclopedia. Wikimedia Foundation, Inc. 28 October 2011. Web. 6 November 2011. “Tristimulus.” Wikipedia, The Free Encyclopedia. Wikimedia Foundation, Inc. 5 October 2011. Web. 6 November 2011.KarenJantz JoeJancsics

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