Abstract:
Disclosed is an apparatus and method for digital holographic table top display. The digital holographic table top display apparatus includes: a camera array configured to capture a plurality of channel images in an omni-directional range from a table by using a plurality of cameras; a controller configured to detect an observer from the plurality of channel images and to track a position of pupils of the observer in at least one channel image from which the observer is detected; and a display configured to reproduce a digital holographic image in a three-dimensional (3D) space according to the tracked position of the pupils.
Abstract:
A method for 3DTV multiplexing according to the present invention comprises, deriving a delay value in units of frames for the left and right image based on a left image PES (Packetized Elementary Stream) corresponding to a left image and a right image PES corresponding to a right image, carrying out synchronization of the left image PES and the right image PES based on the delay value in units of frames, and generating 3DTV transport streams (TSs) by carrying out multiplexing of the synchronized left image PES and the synchronized right image PES. According to the present invention, efficiency of video services can be improved.
Abstract:
An image reproduction apparatus for a 3DTV and a processing method by the apparatus are disclosed. The image reproduction apparatus may determine an output time of a buffer to store a left image stream and a right image stream for a 3D image. The image reproduction apparatus may determine a buffer size or a buffer delay time using a reception time difference between the left image stream and the right image stream. Further, the image reproduction apparatus may correct a reference clock or a timestamp using the reception time difference between the left image stream and the right image stream.
Abstract:
A boundary information providing apparatus may include a boundary information generation unit to generate boundary information of a video, the boundary information through which a switching point between a 2D video and a 3D video is recognized, based on a switching mode between the 2D video and the 3D video, and a stream transmission unit to transmit a stream including the boundary information to a video receiving apparatus.
Abstract:
Provided is an apparatus for measuring a quality of a holographic image. The apparatus includes: a hologram image reconstruction unit configured to perform a hologram image; a superimposed focus image generation unit configured to collect an area that is in focus from reconstructed images and superimpose into a single image; and a hologram image quality measurement unit configured to perform an image quality evaluation for the superimposed focus image.
Abstract:
The present invention relates to correcting errors of multiple stream-based 3D images. The present invention comprises a 3D image synchronizing unit which synchronizes a first image and a second image consisting the 3D image; a 3D image correcting unit which detects an error block in the first image, searches a corresponding block in the second image, and corrects the error block on the basis of the block information of said corresponding block; and a compositing unit which composites the corrected first image and the second image to generate a 3D stereoscopic image. According to the present invention, bit errors occurring when transmitting multiple stream of 3D image can be corrected, providing better quality of 3D images. Also, error correction can be easily performed by using the method of the present invention without complicated calculations.
Abstract:
Provided is a holographic display apparatus including a motor configured to synchronize with a hologram transmitted based on user's point of view and to rotate; a spatial light modulator configured to load hologram data generated based on the user's point of view in a fixed position state and to perform a light modulation; a mirror configured to provide the hologram which is light-modulated by the spatial light modulator according to the user's point of view during the rotation by rotation operation of the motor; and a hologram correction unit configured to compensate a rotation error between the fixed spatial light modulator and the rotating mirror and to provide a corrected hologram data to the spatial light modulator.
Abstract:
Disclosed are a method and apparatus for providing a three-dimensional (3D) broadcast service using images with asymmetric aspect ratios and a method and apparatus for reproducing a 3D broadcast service. The method of providing the 3D broadcast service includes adjusting a second viewpoint image to be composed with a first viewpoint image into a 3D form with respect to the first viewpoint image and the second viewpoint image for 3D broadcasting, encoding the first viewpoint image and the adjusted second viewpoint image, and generating a broadcast stream of the first viewpoint image and a broadcast stream of the second viewpoint image by multiplexing the first viewpoint image and the second viewpoint image.
Abstract:
A method of switching a transport stream, (TS) such as an MPEG-2 TS, receives a plurality of input streams, receives a switching command for a first input stream, among the plurality of input streams, that is currently being output, searches for an out-point of the first input stream and an in-point of a second input stream to be newly output, in response to the switching command, inserts a virtual P picture stream between the out-point and the in-point, and switches from the first input stream into the second input stream based on the out-point and the in-point.