Abstract: A decoding device, an encoding device and a method for point cloud decoding is disclosed. The method includes receiving a compressed bitstream. The method also includes decoding the compressed bitstream into 2-D frames that represent a 3-D point cloud. Each of the 2-D frames including a set of patches, and each patch includes a cluster of points of the 3-D point cloud. The cluster of points corresponds to an attribute associated with the 3-D point cloud. One patch of the set of patches, the set of patches, and the 2-D frames correspond to respective access levels representing the 3-D point cloud. The method also includes identifying a first and a second flag. In response to identifying the first and the second flag, the method includes reading the metadata from the bitstream. The method further includes generating, based on metadata and using the sets of 2-D frames, the 3-D point cloud.

Abstract: A decoding device, an encoding device and a method for point cloud decoding is disclosed. The method includes receiving a compressed bitstream. The method also includes decoding the compressed bitstream into 2-D frames that represent a 3-D point cloud. Each of the 2-D frames including a set of patches, and each patch includes a cluster of points of the 3-D point cloud. The cluster of points corresponds to an attribute associated with the 3-D point cloud. One patch of the set of patches, the set of patches, and the 2-D frames correspond to respective access levels representing the 3-D point cloud. The method also includes identifying a first and a second flag. In response to identifying the first and the second flag, the method includes reading the metadata from the bitstream. The method further includes generating, based on metadata and using the sets of 2-D frames, the 3-D point cloud.

Abstract: A decoding device, an encoding device and a method for point cloud decoding is disclosed. The method includes receiving a compressed bitstream. The method also includes decoding the compressed bitstream into 2-D frames that represent a 3-D point cloud. Each of the 2-D frames including a set of patches, and each patch includes a cluster of points of the 3-D point cloud. The cluster of points corresponds to an attribute associated with the 3-D point cloud. One patch of the set of patches, the set of patches, and the 2-D frames correspond to respective access levels representing the 3-D point cloud. The method also includes identifying a first and a second flag. In response to identifying the first and the second flag, the method includes reading the metadata from the bitstream. The method further includes generating, based on metadata and using the sets of 2-D frames, the 3-D point cloud.

Abstract: A decoding device, an encoding device and a method for point cloud decoding is disclosed. The method includes receiving a compressed bitstream. The method also includes decoding the compressed bitstream into 2-D frames that represent a 3-D point cloud. Each of the 2-D frames including a set of patches, and each patch includes a cluster of points of the 3-D point cloud. The cluster of points corresponds to an attribute associated with the 3-D point cloud. One patch of the set of patches, the set of patches, and the 2-D frames correspond to respective access levels representing the 3-D point cloud. The method also includes identifying a first and a second flag. In response to identifying the first and the second flag, the method includes reading the metadata from the bitstream. The method further includes generating, based on metadata and using the sets of 2-D frames, the 3-D point cloud.

Abstract: A method and apparatus for searching digital images is provided and includes receiving a first search query, determining a first set of digital images based on the contents of the first query, displaying the digital images returned based on the results of the first query, receiving a second query different from the first query, determining a second set of digital images based on the contents of the first query and the second query, and displaying the digital images returned based on the results of the first query and second query.

Abstract: Systems and methods are provided for video encoding and decoding using intra-block copy mode when constrained intra-prediction is enabled. In various implementations, a video encoding device can determine a current coding unit for a picture from a plurality of pictures. The video encoding device can further determine that constrained intra-prediction mode is enabled. The video encoding device can further encode the current coding unit using one or more reference samples. The one or more reference samples are determined based on whether a reference sample has been predicted using intra-block copy mode prediction without using any inter-predicted samples. When the reference sample is predicted using intra-block copy mode without using any inter-predicted samples, the reference sample is available for predicting the current coding unit.

Abstract: Disclosed are exemplary embodiments of systems and methods to communicate data over at least one wire line between units each associated with a control system. In an exemplary embodiment, a conditioned input AC signal serves as a reference signal for data to be transmitted. In phase or out of phase state of the conditioned reference signals is determined by dividing the reference signal into predetermined number of segments, generating a template signal frame and a data signal frame at predetermined segments, generating an interrupt signal in each control system on a predetermined location on the reference signal, logically ORing the template and data signal frames, transmitting the ORed signal, and analyzing the ORed signal to determine phase of the reference signal provided to each control system. If the reference signal is out of phase, the interrupting signal is shifted to correct the out of phase state of the reference signal.

Abstract: In one example, an apparatus for encoding video data includes a video encoder configured to select an intra-prediction mode to use to encode a block of video data, determine whether the block includes a sub-block of a size for which multiple transforms are possible based on the size of the sub-block and the selected intra-prediction mode, when the block includes the sub-block of the size for which multiple transforms are possible based on the size of the sub-block and the selected intra-prediction mode, select one of the multiple possible transforms, transform the sub-block using the selected one of the multiple possible transforms, and provide an indication of the selected one of the multiple possible transforms for the size of the block.

Abstract: Disclosed are exemplary embodiments of systems and methods to communicate data over at least one wire line between units each associated with a control system. In an exemplary embodiment, a conditioned input AC signal serves as a reference signal for data to be transmitted. In phase or out of phase state of the conditioned reference signals is determined by dividing the reference signal into predetermined number of segments, generating a template signal frame and a data signal frame at predetermined segments, generating an interrupt signal in each control system on a predetermined location on the reference signal, logically ORing the template and data signal frames, transmitting the ORed signal, and analyzing the ORed signal to determine phase of the reference signal provided to each control system. If the reference signal is out of phase, the interrupting signal is shifted to correct the out of phase state of the reference signal.

Abstract: A system and method for an efficient semantic similarity search of images with a classification structure are provided. The system and method provide for building a semantic classification-search tree for the plurality of images, the classification tree including at least two categories of images, each category of images representing a subset of the plurality of images, receiving a query image, classifying the query image to select one of the at least two categories of images, and restricting the search for the image of interest using the query image to the selected one of the at least two categories of images.

Abstract: A system renders oblique slices through volumetric data accessed via a network using a client-server architecture. The system includes a server for processing and storing volumetric data comprising axial slices obtained from a diagnostic scanning system, a client for processing user requests related to specific views of the volumetric data, and a network protocol for connecting the client with the server over the network and obtaining data from the server for use by the client. A processing stage at the client specifies an oblique slice and communicates particulars of the oblique slice to the server, thereupon obtaining axial slice data from the server specifically for portions of the axial slices that are needed to render the oblique slice. Memory at the client stores the axial slice data, and a rendering stage at the client renders the oblique slice from the axial slice data in the memory.

Abstract: A method for simultaneously recording motion and still images, includes the steps of: capturing a motion image sequence and accompanying audio of a scene with a digital video camera adapted to record both motion and higher resolution still images; simultaneously capturing a still image sequence having a higher resolution and lower frame rate than the motion capture sequence; compressing the motion image sequence using interframe compression and the accompanying audio and storing the compressed motion image and audio data; and compressing the still images using intraframe coding and storing the compressed still image data.

Abstract: A JPEG2000 compressed image is transcoded to a lower bit-rate or lower resolution, or both, without having to decompress the initial JPEG2000 image and then recompress it to a lower bit-rate and/or resolution. Instead, arithmetic decoding is performed only to the nearest higher bit-rate layer, up to the desired resolution, before performing rate-distortion optimization to produce the transcoded image.

Abstract: A JPEG2000 compressed image is transcoded to a lower bit-rate or lower resolution, or both, without having to decompress the initial JPEG2000 image and then recompress it to a lower bit-rate and/or resolution. Instead, arithmetic decoding is performed only to the nearest higher bit-rate layer, up to the desired resolution, before performing rate-distortion optimization to produce the transcoded image.