6 results about "Viewpoints" patented technology

The invention discloses a rear naked-eye three-dimensional (3D) display and a display method. The rear naked-eye 3D display comprises an image display unit, an optical element and a backlight module, wherein the image display unit can provide a display panel of a fully-high-resolution parallax image; the optical element propagates backlight energy to different visual areas in space; and the backlight module is formed by combining a switch and small backlight units, and the brightness of each small backlight unit can be freely controlled. Light which is emitted by the backlight module passes through the optical element, penetrates through the image display unit and then is used for loading the parallax image, so different parallax images can be seen through eyes at different spatial positions, or different images can be seen at different viewpoints. Meanwhile, by controlling the specific brightness combination of the small backlight units in the backlight module, a high-resolution two-dimensional (2D) image can be played. By the invention, under the condition that 3D display is realized, adding of glasses is eliminated, the resolution of the display is prevented from being reduced, and 2D/3D bidirectional switching without resolution reduction is realized.

A “composite signal generator” automatically combines two or more copies of a signal to produce a composite that is better than the individual copies. For example, given two or more input images of a scene captured from approximately the same viewpoint, the composite signal generator automatically produces a composite image having reduced or eliminated areas of occlusion with respect to any occlusions existing in the input images. First, the input images are registered using conventional image registration techniques. Differences between the registered images are then used to identify regions of potential occlusion in one or more of the images. A determination of which image is actually occluded is made by identifying which image has a larger discontinuity along a border of the potentially occluded regions. A composite image is then created by choosing one image and mosaicing parts from the other images where it is occluded and they are not.

The invention discloses a multi-granularity viewpoint mining method based on personal computer e-commerce comments, and the method comprises the steps: firstly obtaining the e-commerce comments from awebpage, and carrying out the automatic marking of the comments; preprocessing the e-commerce comments; recognizing 'aspect-viewpoint' pairs of single sentences in the preprocessed corpus, and distinguishing viewpoint words from aspect words; carrying out phrase-level sentiment classification on the context phrases of the aspect; and finally, carrying out text-level sentiment classification on the whole comments, so as to obtain viewpoint mining results of the whole commodity and all aspects. The problem that in the prior art, feedback information of all attribute aspects contained in comments cannot be automatically mined is solved.

The invention discloses a virtual reality system free viewpoint switching method. The virtual reality system free viewpoint switching method comprises the following steps: firstly, space coordinates are established for an initial viewpoint and a terminate viewpoint with a target object serving as the center; secondly, N transition viewpoints are inserted between the initial viewpoint and the terminate viewpoint, wherein N=1, 2, 3..., and the viewpoints are inserted through the following method; thirdly, a spherical model is established according to the coordinates of the initial viewpoint and the coordinates of the terminate viewpoint, wherein a radius-invariable spherical model or a radius-gradual-change spherical model is selected as the spherical model; fourthly, coordinate values of the transition viewpoints are calculated according to the spherical model, so that a viewpoint switching path from the initial viewpoint to the terminate viewpoint is obtained. According to the virtual reality system free viewpoint switching method, the complexity of transition viewpoint coordinate calculation on a circular arc between two points is lowered through an outer trackball; the radius-gradual-change spherical model is adopted with respect to different distances from a three-dimensional scene (the target object), so that smooth viewpoint switching is realized.

An arbitrary viewpoint image generation method includes obtaining an original image set photographed by a plurality of cameras included in a camera array at each of at least one focal distance at a same time point; obtaining a multi-focus image set by generating a multi-focus image from the original image set for each of the at least one focal distance; and generating an arbitrary viewpoint image at a position where a viewpoint is to be moved from the multi-focus image set.

The application relates to a server apparatus, an information processing system, a terminal apparatus, and an information processing method. The server apparatus includes a location information receiving unit that receives location information representing a location of a user's viewpoint in a display region of a terminal apparatus; a region identifying unit that identifies, on a screen provided to the terminal apparatus, a first region determined by the location information and a second region other than the first region; and an image transmitting unit that transmits to the terminal apparatus an image at a first image quality corresponding to the first region for an area of the first region of the provided screen and transmits, to the terminal apparatus, supplemental information that supplements an image at a second image quality lower than the first image quality up to a level of the first image quality after transmitting the image at the second image quality for an area of the second region of the provided screen.