One embodiment of the invention provides an image correction method comprising: providing a first image; providing a first image; providing viewpoint information about a viewpoint which observes the first image; dividing the first image into two or more segmented images along a horizontal direction of the first image; and providing a second image converted from the first image by converting each of the two or more segmented images based on the viewpoint information and vertical lengths of each of the segmented images.

Disclosed herein are systems and methods for correcting distortion in a camera lens. The methods can include receiving at least one image of a calibration object, in which the image is captured via the camera lens and the lens has lens distortion. The methods can further include fitting a plurality of geodesics in the image; determining at least one connection equation for the plurality of geodesics; and determining a metric based on the connection equation, the metric comprising a first distorted radial coordinate. The methods can further include determining an undistorted radial coordinate based on the first distorted radial coordinate; determining a second distorted radial coordinate as a function of the undistorted radial coordinate; inverting the undistorted radial coordinate; and generating an undistorted image based on the inverted undistorted radial coordinate.

The present disclosure relates to methods, apparatus or systems for formatting of backward compatible immersive video streams. At least one legacy rectangular video is captured from an immersive video obtained from a source (82). A set of camera control data are used to determine which parts of the immersive video will constitute legacy videos (84). These part are removed from the immersive video (83) and every prepared videos are packaged in a stream (85). The structure from the stream is a container. Information data about the location and size of removed parts may be added in the stream.

An information processing apparatus includes circuitry. The circuitry is configured to detect at least one line segment in a reference direction from a partial area of an image. The circuitry is configured to calculate an inclination of a plane including coordinates of two points included in the at least one line segment in a spherical coordinate system and a reference point of the spherical coordinate system. The circuitry is configured to correct a zenith of the image based on the inclination of the plane.

Provided in the present invention is a panoramic image acquisition device, which comprises a body, a plurality of cameras, a image extraction processor, and an image combination processor; the cameras being provided on the body at an approximate spacing between the human eyes, for acquiring partial pictures of a plurality of different shooting angles; the image extraction processor being connected to the plurality of cameras, for acquiring, on the basis of the human eyes simulating the orientations of the cameras, left-eye pictures and right-eye pictures of the partial pictures corresponding to the cameras; the image combination processor being connected to the image extraction processor, for combining the left-eye pictures of all the partial pictures into a left-eye panoramic picture and combining the right-eye pictures of all the partial pictures into a right-eye panoramic picture.

One embodiment of the invention provides an image correction method comprising: providing a first image; providing a first image; providing viewpoint information about a viewpoint which observes the first image; dividing the first image into two or more segmented images along a horizontal direction of the first image; and providing a second image converted from the first image by converting each of the two or more segmented images based on the viewpoint information and vertical lengths of each of the segmented images.