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  2. Pinhole camera - Wikipedia

    en.wikipedia.org/wiki/Pinhole_camera

    A pinhole camera is a simple camera without a lens but with a tiny aperture (the so-called pinhole)—effectively a light-proof box with a small hole in one side. Light from a scene passes through the aperture and projects an inverted image on the opposite side of the box, which is known as the camera obscura effect.

  3. Pinhole camera model - Wikipedia

    en.wikipedia.org/wiki/Pinhole_camera_model

    The image plane is parallel to axes X1 and X2 and is located at distance from the origin O in the negative direction of the X3 axis, where f is the focal length of the pinhole camera. A practical implementation of a pinhole camera implies that the image plane is located such that it intersects the X3 axis at coordinate -f where f > 0.

  4. Homography (computer vision) - Wikipedia

    en.wikipedia.org/wiki/Homography_(computer_vision)

    Geometrical setup for homography: stereo cameras O 1 and O 2 both pointed at X in epipolar geometry. Drawing from Neue Konstruktionen der Perspektive und Photogrammetrie by Hermann Guido Hauck (1845 — 1905) In the field of computer vision, any two images of the same planar surface in space are related by a homography (assuming a pinhole ...

  5. How to Build a Pinhole Camera to See the Total Solar Eclipse ...

    www.aol.com/pinhole-projector-watch-solar...

    Through the pinhole, you should see an inverted image of the eclipse appear on the paper. 4. As the total solar eclipse reaches 100% coverage, you'll notice the light on the paper fading away ...

  6. Camera matrix - Wikipedia

    en.wikipedia.org/wiki/Camera_matrix

    The camera matrix is sometimes referred to as a canonical form. So far all points in the 3D world have been represented in a camera centered coordinate system, that is, a coordinate system which has its origin at the camera center (the location of the pinhole of a pinhole camera). In practice however, the 3D points may be represented in terms ...

  7. Camera resectioning - Wikipedia

    en.wikipedia.org/wiki/Camera_resectioning

    Camera resectioning is the process of estimating the parameters of a pinhole camera model approximating the camera that produced a given photograph or video; it determines which incoming light ray is associated with each pixel on the resulting image. Basically, the process determines the pose of the pinhole camera.

  8. Optical instrument - Wikipedia

    en.wikipedia.org/wiki/Optical_instrument

    An illustration of some of the optical devices available for laboratory work in England in 1858. An optical instrument is a device that processes light waves (or photons), either to enhance an image for viewing or to analyze and determine their characteristic properties. Common examples include periscopes, microscopes, telescopes, and cameras ...

  9. Daguerreotype - Wikipedia

    en.wikipedia.org/wiki/Daguerreotype

    A broad-leaved tree in bright sunshine will provide conditions that fulfill the requirements of a pinhole camera or a camera obscura: a bright light source (the sun), the shade that the leafy canopy provides, a flat surface onto which the image is projected and holes formed by the gaps between the leaves. The sun's image will show as a round ...

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