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Stereoscopic Vision

Three-dimensional vision refers to the ability of the human eye to see our surroundings from a three-dimensional perspective in both eyes. To see the same thing in different ways, eye movements must be intact and synchronized.

Stereoscopic Vision

That movement allows people to interpret distance and therefore allows them to develop the ability to truly perceive depth perception. In humans and animals, each eye sees images slightly differently, which is known as retinal asymmetry.

Thus the brain can process images without any physical movement. The correspondence of the different images obtained is completed and then introduced by calculating the contrast ie.

dissimilarity in front of two images thus the obtained dissimilarity differs with a very small difference but the final result is the most accurate version of the obtained image for spatial depth perception.

Stereoscopic Vision In Humans

Each eye takes its own images and sends two versions to the brain for processing. Human eyes have the most sophisticated and sophisticated perception caused by proper coordination of brain and eyes because they have foresight, fovea, primates, cats, etc.

Since our eyes are 2 inches apart, two images are processed and sent to the brain for processing. , disparity combined on retina Creates a general image which in turn gives a sense of the distance of an object Our brain stores and reuses this spatial information to save computing time. Stereopsis is the accurate depth information provided by the eyes.

Stereoscopic Vision In Animals

Interpretation of optical depth information from images acquired simultaneously through different spatial locations results in binocular vision in animals Some animals have their eyes fixed in two different directions to help them catch their prey.

Thus, they get the maximum field of view. Some celestial animals have a 360-degree field of vision, while others have frontal eyes in front of the head Frontal eyes allow animals to keep their eyes on one object or move their eyes, like those chameleons, independently.

How Is Stereoscopic Vision Beneficial?

  1. Stereoscopic vision helps people manage and hold small objects in their hands
  2. It gives a sense of depth
  3. It allows animals to roam in dense forests
  4. It provides the ability to analyze threats and respond quickly
  5. Used in industries where high precision is required (medical, research, aviation).
  6. It creates a depth of field where the object dominates, and the surroundings are not sharp.
  7. allows you to see the selection


Human eyes do not always use stereoscopic vision to interpret distances, they use focal lengths to determine distances that must be properly focused by the eyes, this is not as accurate as stereoscopic vision so it is used in conjunction with stereoscopic vision to obtain accurate results.

Stereogram A computer-generated image of an object that provides a three-dimensional view created from a two-dimensional image. It is brought in two formats:

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