Visual illusions

• The ponzo illusion is an example of misinterpreted depth cue. Such misinterpretations are actually to do with the size or length. in the Ponzo Illusion, the horizontal line higher up in the image appears longer than the horizontal line towards the bottom. In reality both lines are actually the same size.
• The brain is amazing thing, but it's not perfect. Sometimes we make mistakes as in the case of the visual illusions.
• The Muller Lyer illusion is another misinterpreted depth cue illusion. It is to do with the distortion of line length. This time the vertical line with the outgoing lines is perceived as longer than the line with the inward facing lines. Both the lines are the same size though
• Rubins Vase

  
• Ames room

  
• Muller lyer

  
• Ponzo illusion

  
• Rubin's vase is an ambiguous figure. After staring at the page for a few seconds, you should be able to perceive this image. As either a vase or 2 faces staring at ecah other. Both interpretations are correct so your brain cannot decide which wants to focus on.
• One of the most famous illusions of all time is the Ames room. It was invented in 1934 and is another misinterpreted depth cue. As you can see from the diagram, the Ames room has a viewing people through which people look. The picture shows that if 2 people are stood at the back wall one will look like a giant while the other appears to be tiny. The illusion is so convincing that 2 people in the room changed places and walk along the background. One appears to magically grow, but the other appears to shrink. This is all to do with how our brain interprets depth and distance using depth cues.