Abstract: A method and system (10) are provided for monitoring a restricted area (12) below a temporarily elevated worker (14) working on an elevated power transmission line (16). The method and system (10) utilize a Doppler radar module (40) that is temporarily elevated to a location (32) adjacent the worker (14) and that is configured to detect the presence of personnel (34) who enter the restricted area (12). The system (10) is configured to automatically alert personnel (34) at the worksite (17) who enter the restricted area (12) in response to detection of the personnel (34) by the Doppler radar module (40).

Abstract: The present invention includes an image acquisition device configured to acquiring multiple viewpoint images that are generated by pupil-division imaging and that are different in viewpoint, a parallax calculation device 40a for calculating a first parallax amount between viewpoint images for the multiple viewpoint images, a memory 48 in which parallax correction information indicating the relationship between the first parallax amount and the deviation amount in the parallax direction for the corresponding object images, which is a deviation amount between viewpoint images for the multiple viewpoint images and is caused by the pupil-division imaging, is stored, and a parallax correction device 40b for calculating a second parallax amount, which is an amount resulting from correcting the first parallax amount to the deviation amount in the parallax direction for the object images, based on the first parallax amount and the parallax correction information stored in the memory 48.

Abstract: A motionless adaptive focus stereoscopic scene capture apparatus employing tunable liquid crystal lenses is provided. The apparatus includes at least two image sensors preferably fabricated as a monolithic stereo image capture component and at least two corresponding tunable liquid crystal lenses preferably fabricated as a monolithic focus adjustment component. Using a variable focus tunable liquid crystal lens at each aperture stop provides constant magnification focus control. Controlled spatial variance of a spatially variant electric field applied to the liquid crystal of each tunable liquid crystal lens provides optical axis shift enabling registration between stereo images. A controller implements coupled auto-focusing methods employing multiple focus scores derived from at least two camera image sensors and providing multiple tunable liquid crystal lens drive signals for synchronous focus acquisition of a three dimensional scene.

Abstract: A video decoder generates an initial reference picture list (RPL). Furthermore, the video decoder determines that an ordered set of reference picture list modification (RPLM) syntax elements does not include any additional syntax elements when a syntax element in the ordered set of RPLM syntax elements has a particular value. Furthermore, the video decoder generates a final RPL. For each respective RPLM syntax element in the ordered set of syntax elements, when the respective RPLM syntax element does not have the particular value, the final RPL includes, at an insertion position for the respective RPLM syntax element, a particular reference picture. The respective syntax element indicates a position in the initial RPL of the particular RPLM reference picture. The insertion position for the respective RPLM syntax element corresponds to a position in the ordered set of RPLM syntax elements of the respective RPLM syntax element.

Abstract: The system to proctor an examination includes a first camera worn by the examination taking subject and directed to capture images in subject's field of vision. A second camera is positioned to record an image of the subject's face during the examination. A microphone captures sounds within the room, which are analyzed to detect speech utterances. The computer system is programmed to store captured images from said first camera. The computer is also programmed to issue prompting events instructing the subject to look in a direction specified by the computer at event intervals not disclosed to subject in advance and to index for analysis the captured images in association with indicia corresponding to the prompting events.

Abstract: A method and system are provided for configuring or registering an edge device with a video management server (VMS) in a digital video network. The edge device initiates a registration process and sends an unsolicited pre-registration request, including edge-device-specific configuration information, to the VMS. This is in contrast to known approaches in which the VMS initiates registration. The VMS automatically pre-registers the edge device based on the received unsolicited pre-registration request. An edge device registration activator is displayed for the pre-registered edge device. In response to activation or selection of the edge device registration activator, the VMS registers the pre-registered device to the VMS using the edge-device-specific configuration information received in the unsolicited pre-registration request. The registration can be performed in a single operation, without the VMS having to gather further information. The edge device can be configured to more than one VMS at a time.

Abstract: This disclosure describes techniques associated with filtering of video data in a video encoding and/or decoding process. In accordance with this disclosure, filtering is applied at an encoder, and filter information is encoded in the bitstream to identify the filtering that was applied at the encoder. Different types of filtering may be applied based on an activity metric determined for the video data. Moreover, in accordance with this disclosure, the manner in which the filter information is encoded into the bitstream may be dependent on the activity metric. In particular, for a first range of the activity metric, one or more filters are encoded directly, and for a second range of the activity metric, one or more filters are predictively encoded.

Abstract: Techniques are described related to constructing reference picture lists. The reference picture lists may be constructed from reference picture subsets of a reference picture set. In some examples, the techniques may repeatedly list reference pictures identified in the reference picture subsets until the number of entries in the reference picture list is equal to the maximum number of allowable entries in the reference picture list.

Abstract: A device may encapsulate video data such that Supplemental Enhancement Information (SEI) messages are stored separately from a sequence of coded video pictures described by the SEI messages. An example device includes a control unit configured to generate one or more SEI messages separate from the coded video pictures, wherein the SEI messages describe respective ones of the sequence of coded video pictures and include elements common to more than one of the coded video pictures, and an output interface configured to output the SEI messages separately from the sequence of coded video pictures. An example destination device may receive the SEI messages separately from the coded video pictures and render the coded video pictures using the SEI messages.

Abstract: A video encoder generates a bitstream that includes a reference picture list modification (RPLM) command. The RPLM command belongs to a type of RPLM commands for inserting short-term reference pictures into reference picture lists. The RPLM command instructs a video decoder to insert a synthetic reference picture into the reference picture list. The video decoder decodes, based at least in part on syntax elements parsed from the bitstream, one or more view components and generates, based at least in part on the one or more view components, the synthetic reference picture. The video decoder modifies, in response to the RPLM commands, a reference picture list to include the synthetic reference picture. The video decoder may use one or more pictures in the reference picture list as reference pictures to perform inter prediction on one or more video blocks of a picture.

Abstract: Provided is a video encoding/decoding technique for improving the compression efficiency by reducing the motion vector code amount. In a video decoding process, the prediction vector calculation method is switched from one to another in accordance with a difference between predetermined motion vectors among a plurality of motion vectors of a peripheral block of a block to be decoded and already decoded. The calculated prediction vector is added to a difference vector decoded from an encoded stream so as to calculate a motion vector. By using the calculated motion vector, the inter-image prediction process is executed.

Abstract: an illustrative video apparatus comprises a decoder that decodes video information in a native format, an emulation controller coupled to the decoder, and a network controller coupled to the emulation controller and capable of coupling to an external network. The video apparatus also includes a storage holding an instruction sequence executable on the emulation controller. The instruction sequence comprises a code for receiving network information from the external network and converting the network information to the native format for transfer to the decoder.

Abstract: As a parameter control unit that controls video encoding parameters regarding video encoding in a video encoding unit and transmission channel parameters regarding error correction coding and modulation in a channel coding/modulation unit so as to be linked to each other, a cross layer rate control unit is provided. The cross layer rate control unit performs variable control of the GOP size according to propagation changes by reducing the GOP size when the amount of change in the predicted value of the PHY transmission rate is larger than a determined amount of change and increasing the GOP size when the amount of change in the predicted value of the PHY transmission rate is equal to or less than the determined amount of change.

Abstract: An apparatus and a method for processing a stereo image are provided. In the method, a first image and a second image are obtained via a first camera module and a second camera module installed spaced by a predetermined distance. When the stereo image is captured, the first image and the second image are alternatively sampled with a predetermined time interval. The sampled at least one first image and the sampled at least one second image are encoded. Therefore, the stereo image can be compressed with low complexity compared to the case of compressing a stereo image using a 2D image compression technology.

Abstract: When controlling transmission channel parameters and video encoding parameters so as to be linked to each other in video transmission, the video quality on the receiving side is further improved. As a parameter control unit that controls video encoding parameters regarding video encoding in a video encoding unit and transmission channel parameters regarding error correction coding and modulation in a channel coding/modulation unit so as to be linked to each other, a cross layer rate control unit is provided. The cross layer rate control unit performs variable control of the GOP size according to propagation changes by reducing the GOP size when the predicted value of the PHY transmission rate is larger than a determined reference value and increasing the GOP size when the predicted value of the PHY transmission rate is equal to or less than the determined reference value.

Abstract: Techniques are described related to deriving a reference picture set. A reference picture set may identify reference pictures that can potentially be used to inter-predict a current picture and picture following the current picture in decoding order. In some examples, deriving the reference picture set may include constructing a plurality of reference picture subsets that together form the reference picture set.

Abstract: A computer processor implementable method of decoding low-density parity-check (LDPC) code, comprising: receiving a log-likelihood-ratio (LLR) input bitstream; performing a combined bit-deinterleaving and reordering process on the LLR input bitstream and storing in a physical memory space, comprising: determining a logical memory address for each LLR bit in the LLR input bitstream, determining a physical memory address for each LLR bit in the LLR input bitstream from logical memory address of the LLR bit; decoding the LLR input bitstream stored in the physical memory space; and performing a combined de-reordering and de-mapping process on the decoded LLR input bitstream.

Abstract: A method of converting first data into second data includes: determining a target symbol corresponding to the first data by utilizing a determining unit; and generating the second data corresponding to the determined target symbol. One of the first data and the second data is a syntax element, and the other of the first data and the second data is an entropy-coded result of the syntax element. The target symbol corresponding to the first data is determined adaptively according to occurrence probability of candidate syntax element values of the syntax element.

Abstract: A video encoding method for encoding a plurality of images as a video image. The method includes a reference parallax data setting step of setting reference parallax data which indicates a viewing difference between a first image and an already-encoded second image, in order to encode target encoding data assigned to a predetermined position in the first image; a corresponding position setting step of setting a corresponding position in the second image, which can correspond to the predetermined position, by using the reference parallax data; a code table setting step of setting a code table corresponding to target encoding data assigned to the corresponding position; and a target encoding data encoding step of encoding the target encoding data in the first image by using the code table.

Abstract: A system for managing delivery of video content. The system includes a controller and one or more players. The controller may be configured to control generation of a plurality of streams containing the video content based upon feedback regarding decoding at least one of the plurality of streams. The one or more players may be configured to select a stream from the plurality of streams, generate decoding statistics for the selected stream, and send the decoding statistics to the controller as the feedback.