The present disclosure provides a 3D image display method for displaying 3D image on a handheld terminal display screen. The method includes the following steps. The handheld terminal detects a current screen display mode to determine whether the handheld terminal triggers a horizontal-vertical screen display mode change. The handheld terminal determines the current screen display mode as a horizontal mode or a vertical mode when the handheld terminal triggers a horizontal-vertical screen display mode change. The handheld terminal determines 3D image arrangement parameters based on the current screen display mode. The handheld terminal rearranges the 3D image to be displayed to obtain a revised 3D image based on the adjusted 3D image arrangement parameters. The handheld terminal displays the revised 3D image in the current screen display mode of the handheld terminal.

In a calibration device, entry work of coordinate information on a real space is not required. An imaging system is configured to include an image acquisition unit which acquires an image from an imaging device, an object extraction unit which extracts a plurality of objects from the image, a characteristic information addition unit which adds geometry information that indicates geometric relationships among the plurality of objects to each set of objects as characteristic information, a camera parameter estimation unit which obtains image coordinates of the objects in accordance with the characteristic information to estimate camera parameters based on the characteristic information and the image coordinates, and a camera parameter output unit which outputs the camera parameters.

The present application discloses a stereoscopic display for naked eyes includes a two-dimensional display panel, a stereoscopic module for the naked eyes and a light converting module. The stereoscopic module for the naked eyes is deposited between the two-dimensional display panel and the light converting module. The two-dimensional display panel is used to output a two-dimensional image based on the linearly polarized light; the stereoscopic module for the naked eyes is used to output a three-dimensional image based on the linearly polarized light. The light converting module is used to convert the linearly polarized light to a circularly polarized light and output a three-dimensional image based on the circularly polarized light.

A stereo display device includes plural projectors, a lens array, and a concave axicon lens array. The projectors project images to plural viewing regions at an image side. The lens array is disposed between the projectors and the image side. The concave axicon lens array is disposed between the lens array and the image side.

There is provided a medical stereoscopic observation device, including: an acquisition section that acquires a first signal associated with a first imaging section and a second signal associated with a second imaging section via mutually different transmission channels; and a switching section that switches a signal to use for a certain control between the first signal and the second signal, in accordance with a state of the transmission channel for transmitting the first signal.

An apparatus and method for outputting view images by tracking a gaze of a user are provided. The image processing apparatus estimates movement of a gaze of a user using a camera, and determines an output order of view images according to the gaze movement.

Systems and methods provide a retro-reflective screen covered with a screen material. The retro-reflective screen has a plurality of retro-reflective screen elements positioned within the screen material. At least one of the plurality of retro-reflective screen elements is oriented so as to have an incident angle that is less than 45 degrees. Additionally, a portion of the screen material that corresponds to the at least one screen element has an incident angle that is greater than the incident angle of the at least one screen element. Additionally, the system also comprises at least one projector that (i) generates light characterizing an image or video and (ii) projects the light onto the retro-reflective screen.

Systems and methods are disclosed for generating stereoscopic images for a user based on one or more images captured by one or more scene-facing cameras or detectors and the position of the user's eyes or other parts relative to a component of the system as determined from one or more images captured by one or more user-facing detectors. The image captured by the scene-facing detector is modified based on the user's eye or other position. The resulting image represents the scene as seen from the perspective of the eye of the user. The resulting image may be further modified by augmenting the image with additional images, graphics, or other data. Stereoscopic mechanisms may also be adjusted or configured based on the location or the user's eyes or other parts.

In a digital contents receiver for receiving transmitted digital contents, the digital contents include at least component information indicating an element which constitutes a program of the contents. When the component information indicates that the received digital contents are a 3D component, it is determined whether a display part corresponds to display of the 3D component. If the display part corresponds to display of the 3D component, the received digital contents are displayed in 3D.

A parallax composite image displayed by image display means may be observed as predetermined parallax image at predetermined position by reflecting and guiding light from light source means and by using a diffusion pattern in which diffusion patterns are engraved at predetermined intervals to diffuse and transmit incident light on the diffusion pattern to the image display means. A fine notched structure is provided to cyclically and symmetrically vary the diffusion patterns in the horizontal direction. A structure is provided to control an amount and range of blur of pixels visible through light diffused toward the image display means by the diffusion pattern to which recesses and protrusions are added. By evaluating and adjusting a cycle of the notched structure so as to be appropriate, resultant adverse effects from the notched structure itself may be suppressed. Bright-dark patterns having a relatively long cycle may be reduced without increasing crosstalk.