Abstract: A near-eye light field display device includes a plurality of sub-aperture light field emitting modules and a bi-telecentric lens group. The plurality of sub-aperture light field emitting modules are adapted to generate a plurality of sub-aperture light fields. The bi-telecentric lens group is disposed on one side of the plurality of sub-aperture light field emitting modules, wherein the plurality of sub-aperture light fields pass through the bi-telecentric lens group and are converted into an exit light field by the bi-telecentric lens group, and the exit light field is incident on a receiver.

Abstract: An electronic system for generating panoramic light fields is provided. The electronic system includes a camera, a depth estimation circuit, and a light field generation circuit. The camera is configured to capture a panoramic image of a scene. The depth estimation circuit is configured to estimate panoramic depth information of the scene based on the panoramic image captured by the camera. The light field generation circuit is configured to generate a panoramic light field based on the estimated panoramic depth information.

Abstract: A method for generating stereoscopic light-field data is provided. The method includes the following steps: obtaining three-dimensional image data; performing a multi-view generation process to convert the three-dimensional image data into multi-view data; and performing a light-field conversion process to convert the multi-view data into a stereoscopic light-field pair.

Abstract: A near-eye light-field display apparatus is provided, which includes a display module, a first lens module, an aperture device, and a second lens module. The display module displays light-field data. The first lens module collimates light rays emitted from the display module. The aperture device generates a plurality of coded apertures. The collimated light rays are modulated by the coded apertures. The second lens module focuses the modulated light rays on an image plane to form a real image.

Abstract: A near-eye light field display device includes a plurality of sub-aperture light field emitting modules and a bi-telecentric lens group. The plurality of sub-aperture light field emitting modules are adapted to generate a plurality of sub-aperture light fields. The bi-telecentric lens group is disposed on one side of the plurality of sub-aperture light field emitting modules, wherein the plurality of sub-aperture light fields pass through the bi-telecentric lens group and are converted into an exit light field by the bi-telecentric lens group, and the exit light field is incident on a receiver.

Abstract: A client requests an object at a first server in a content delivery network (CDN), the request having been directed to said first server regardless of whether the first server has the requested object; When the first server does not have a copy of the requested object, it selectively replicating the requested object on the first server. The replicating is based at least in part on a measure of popularity of the requested object, wherein the requested object is not replicated to the first server when the measure of popularity of the requested object does not exceed a popularity threshold.

Abstract: A content delivery method directs a request by a client for an object to a first server in a content delivery network (CDN), regardless of whether the first server has the requested object. If the first server has the requested object, then it is served to the client from the first server; otherwise, the first server redirects the client request to a second server in the CDN to handle the request. The second server may be a peer server of the first server. The first and second servers may be edge servers in the CDN.

Abstract: A management system for digital broadcast rights and a method thereof, which applies to a digital video broadcasting system and utilizes the function of a multimedia home platform; when the multimedia data is intended to record or replay, the user's data will be analyzed to determine whether the user is allowed to use the multimedia data; further, encryption and decryption processes are used to monitor and control the record and replay processes of the multimedia data and protect the digital broadcast rights of the multimedia data lest it be unrestrictedly used or duplicated as one pleases.

Abstract: A method, system and computer program product for managed object replication and delivery redirects, directly or indirectly, a client's request for an object that is not available at a best or optimal handling edge server of a network to a parent server that has the requested object. So, where the requested object is not available at the handling edge server, the client's request is redirected directly to the parent server that can provide the requested object to the client or indirectly via one or more parent servers to a parent server that can provide the requested object to the client. The method, system and computer program product further intelligently replicates the object to the edge server if the object is popular enough. Likewise, an object is removed from an edge server when it is no longer popular. All redirection and replication operations are preferably transparent to the end-user and do not degrade the quality of service.

Abstract: A method for transform domain rounding in a decoder includes performing transform-domain motion compensation on a block according to a motion vector to generate a motion-compensated block, determining a transform-domain offset with reference to the motion vector, adding the transform-domain offset to the motion-compensated block to obtain an addition result, and outputting the addition result as a rounded reference block.

Abstract: A transcoder for converting a digital video signal from a first format into a second format in transform domain. The first format and the second format are respectively adopted by video coding schemes possessing different DCT transform kernels. The transcoder includes: a transform-domain decoder, coupled to the digital video signal, for decoding the digital video signal of the first format to generate a first DCT-domain signal, the first DCT-domain signal corresponding to a first DCT transform of the first format in the transform domain; a transform kernel converter, coupled to the transform-domain decoder, for converting the first DCT-domain signal into a second DCT-domain signal, the second DCT-domain signal corresponding to a second DCT transform of the second format in the transform domain; and a transform-domain encoder, coupled to the transform kernel converter, for generating a resultant video signal encoded in the second format according to the second DCT domain signal.

Abstract: An automatic white balance method for digital color images comprises an image statistics process for estimating reference white points in an image, and adjustment the image based on the reference white points. In this method, by dynamically thresholding the chrominance values of the image in the white point detection, the processing is adaptive to each image for better image quality with less computational complexity.

Abstract: The invention provides a digital image stabilization apparatus for compensating a jitter occurred in the ith frame among N frames of a video sequence, where each of the N frames includes a plurality of blocks, N is a natural number larger than or equal to 3 and i is an integer index ranging from 1 to N. The apparatus includes a determining module, a comparing module and an adjusting module. The determining module is to determine a block of background region BRi-1 in the (i?1)th frame. The comparing module, coupled to the determining module, is to compare the block of BRi-1 in the (i?1)th frame with the corresponding block in the ith frame so as to determine a jitter vector. The adjusting module, coupled to the comparing module, is to adjust the ith frame in accordance with the jitter vector to compensate for the jitter occurred in the ith frame.

Abstract: This invention provides a method to speed up mode decision in video coding standards. It is based on the characteristics of mode distribution and the relationship among the modes of neighboring blocks. It compares the main steps of checking SKIP mode, checking if neighboring blocks have a same mode, checking the best mode, and checking each mode in all inter modes then selecting the best one of these modes. Compared to the H.264 reference software full search method, the simulation result shows that this method can save up to 66.81% of the total encoding time with a slight increase in bit rate and a negligible PSNR drop.

Abstract: A method, system and computer program product for managed object replication and delivery redirects, directly or indirectly, a client's request for an object that is not available at a best or optimal handling edge server of a network to a parent server that has the requested object. So, where the requested object is not available at the handling edge server, the client's request is redirected directly to the parent server that can provide the requested object to the client or indirectly via one or more parent servers to a parent server that can provide the requested object to the client. The method, system and computer program product further intelligently replicates the object to the edge server if the object is popular enough. Likewise, an object is removed from an edge server when it is no longer popular. All redirection and replication operations are preferably transparent to the end-user and do not degrade the quality of service.