275 results about "High speed video" patented technology

A system for sending and receiving full motion, live, full duplex video of broadcast quality over existing telephone lines comprises apparatus for converting audio/video data recorded at a first location into a stream of packets, apparatus for reconverting the stream of packets into audio/video data to be presented at a second location, and apparatus for bypassing telephone company voice switches at central offices, thereby allowing the packets to travel directly from the local telephone lines to the long distance telephone network. The packets are created at the first location and are received at the second location and, in addition to encoded audio/video data, each packet contains a start flag, an end flag, and at least data specifying the encoding algorithm by which the encoded audio/video data was encoded.

An interframe prediction processor designed for high-speed video coding and decoding. The interframe prediction processor has an address selector and a predictor calculator. The address selector receives information about MBAFF type and coding type. When performing motion compensation for a given MBAFF picture with reference to blocks surrounding a current block, the address selector provides memory addresses of reference motion vectors according to the coding type of the current block pair, as well as to the coding type of the reference blocks. The predictor calculator that determines a motion vector predictor for each constituent block of the current block pair based on reference motion vectors read out of the provided memory addresses.

This invention relates to an apparatus and a method for video capture of a three-dimensional region of interest in a scene using an array of video cameras. The video cameras of the array are positioned for viewing the three-dimensional region of interest in the scene from their respective viewpoints. A triggering mechanism is provided for staggering the capture of a set of frames by the video cameras of the array. The apparatus has a processing unit for combining and operating on the set of frames captured by the array of cameras to generate a new visual output, such as high-speed video or spatio-temporal structure and motion models, that has a synthetic viewpoint of the three-dimensional region of interest. The processing involves spatio-temporal interpolation for determining the synthetic viewpoint space-time trajectory. In some embodiments, the apparatus computes a multibaseline spatio-temporal optical flow.

In a video processing system, a method and system for high speed video encoding using parallel encoders are provided. A delimiter may break up a video sequence into encoding groups that are transferred to a plurality of parallel encoders. The parallel encoders may process and transfer intra-coded pictures in the encoding groups to previous parallel encoders or may process and transfer last predictive pictures to next parallel encoders. When intra-coded pictures are transferred, the encoding group may correspond to that of a GOP structure. When predictive pictures are transferred, the encoding group may end in at least one bidirectional-predictive picture. The parallel encoders process the transferred intra-coded pictures or transferred predictive pictures to generate a plurality of parallel outputs. An assembler assembles an encoded video output from the parallel outputs based on timing information. A controller controls the operation of the delimiter, the parallel encoders, and the assembler.

A high speed video cable carries signals according to the High-Definition Multimedia Interface (HDMI) or DisplayPort standards, and includes a raw cable and may include a boost device. The raw cable includes coaxial lines of a characteristic cable impedance higher than the impedance implied in the standards. The correct impedance is observed at the sending end by shunt resistors mounted in the first cable connector. The resultant loss of signal may be made up with the boost device mounted in the connector at the other end of the cable in the case of a long cable. Increasing the cable impedance reduces the inherent loss of the raw cable thus permitting the use of low cost material such as tinned wires. Similar advantages are obtained regardless whether Shielded Twisted Pairs (STP) or coaxial lines are used.

An apparatus for detecting an action in a test video. In an illustrative embodiment, the apparatus includes a first mechanism for receiving a query for a particular action via a query video. A second mechanism employs motion vectors associated with the test video to compute one or more motion-similarity values. The one or more motion-similarity values represent motion similarity between a first group of pixels in a first frame of a query video and a second group of pixels in a second frame of the test video based on the motion vectors. A third mechanism uses the one or more similarity values to search for the particular action or similar action in the test video. In a more specific embodiment, another mechanism aggregates the similarity values over a predetermined number of frames to facilitate estimating where the particular action or version thereof occurs or is likely to occur in the test video.

A high-speed video camera having a solid-state image sensor consisting of a plurality of pixel blocks arranged lengthwise and breadthwise, each pixel block consisting of a plurality of pixels arranged lengthwise and breadthwise, a control device for controlling so that exposure times of pixels in each of the pixel blocks are different from one another, and a control device for controlling so that a plurality of different address are assigned to the pixels, respectively, the same address are assigned to the pixels of the same coordinate in the pixel blocks, and exposure times of pixels of the same address in the pixel blocks are the same with one another.

The amount of data being delivered across networks is constantly increasing. This system and method demonstrates an improved system and method for establishing secure network connections with increased scalability and reduced latency. This approach also includes arbitrary segmentation of incoming network traffic, and dynamic assignment of parallel processing resources to execute application code specific to the segmented packets. The method uses a modified network state model to optimize the delivery of information and compensate for overall network latencies by eliminating excessive messaging. Network data is application generated, and encoded into pixel values in a shared framebuffer using many processors in parallel. These pixel values are transported over existing high speed video links to the Advanced Network Interface Card, where the network data is extracted and placed directly on to high speed network links.

The invention provides a video decoding method. The method comprises the steps of applying for a predetermined number of frame buffers at a video acquisition stage, directly mapping the obtained frame buffers into a user space, performing format conversion on the acquired image data and coding the data, splitting video data and framing the video data for transmission, and running a receiving thread, a data processing thread and a decoding thread simultaneously in a pipeline system upon receiving one frame of data, decoding the data, performing format conversion on the decoded data and then displaying the data. The video decoding method has the advantages that the instantaneity of video data reading is optimized and the fluency of video is guaranteed. The acquisition, compressing, digital transmission and decoding of high-speed videos are completed by use of a simple structure and a technique easy to implement at low cost.

A railway locomotive and vehicle operating attitude measurement system comprises a group of high-speed video cameras which are installed on at least three non-colinear points of a tested vehicle body, arranged oppositely to a running track of the tested vehicle body and used for shooting a track image sequence when a train runs, and an imagine acquisition and processing module used for receiving the track image sequence and analyzing the track image sequence obtained by the high-speed video camera on each point so as to obtain offset of each point relative to the track and determine a spatial attitude and the offset of the tested vehicle relative to two tracks. The railway locomotive and vehicle operating attitude measurement system takes rail surface and track center line as a benchmark, and is non-contact and based on machine vision, can conduct real-time measurement to the dynamic offset of the locative and vehicle to obtain the dynamic offset of an optional position on the vehicle body relative to track surface coordinates, conduct online measurement to the vehicle dynamic displacement in real time, conduct early warning and alarm to overrunning, and simultaneously ensure the measurement accuracy.

A high speed camera takes an image in the vicinity of a ball 3 and a club head 12, while a high speed camera 5 takes an image in the vicinity of the top of the swing of a golfer 1, and the images are recorded in a high speed video tape recorder 6. The recorded images are reproduced, swing time, a swing speed and a head speed are detected using a personal computer 15, and a shaft with an optimum flex for the golfer is selected based on the swing time, the swing speed, the swing time and the head speed, or the swing speed and the head speed.

A high-speed video signal processing system, which includes a reception end for receiving analog signals; a plurality of analog to digital converters coupled to the reception end for converting analog signals received from the reception end to digital signals according to control signals; and an interleaving controller coupled to the plurality of analog to digital converters for generating the control signals to selectively enable the plurality of analog to digital converters according to a predetermined sequence.

The invention provides a normal conducting electromagnetic levitation type rail polling car, wherein the polling car is in double traction pattern of long stator linear motor traction and outer rotor motor supporting wheel traction and can realize high speed polling at 200km/h and low speed rail detection at 60km/h. The polling car is provided with a plurality of floating frames, the formed travel mechanism is also provided with a plurality of outer rotor motor supporting wheels, an operating platform is arranged at the two ends of the shortened carriage structure by a lengthened carriage bottom board, and a lift maintenance platform and a car-ground communication device are arranged on the operating platform. A high speed video monitoring system and a high speed non contact rail detection device arranged in the head skit board which is specially designed, high speed and real time processing on detection data can be realized, and any fault of the rail can be reported in time and can be processed in time.

What is disclosed is a novel system and method for parallel processing of intra-image data in a distributed computing environment. A generic architecture and method are presented which collectively facilitate image segmentation and block sorting and merging operations with a certain level of synchronization in a parallel image processing environment which has been traditionally difficult to parallelize. The present system and method enables pixel-level processing at higher speeds thus making it a viable service for a print/copy job document reproduction environment. The teachings hereof have been simulated on a cloud-based computing environment with a demonstrable increase of ≈2× with nominal 8-way parallelism, and an increase of ≈20×-100× on a graphics processor. In addition to production and office scenarios where intra-image processing are likely to be performed, these teachings are applicable to other domains where high-speed video and audio processing are desirable.

High speed video capture and depth estimation using array cameras is disclosed. Real world scenes typically include objects located at different distances from a camera. Therefore, estimating depth during video capture by an array camera can result in smoother rendering of video from image data captured of real world scenes. One embodiment of the invention includes cameras that capture images from different viewpoints, and an image processing pipeline application that obtains images from groups of cameras, where each group of cameras starts capturing image data at a staggered start time relative to the other groups of cameras. The application then selects a reference viewpoint and determines scene-dependent geometric corrections that shift pixels captured from an alternate viewpoint to the reference viewpoint by performing disparity searches to identify the disparity at which pixels from the different viewpoints are most similar. The corrections can then be used to render frames of video.

The invention relates to a non-contact type impact wave hyperpressure measuring method. A high-speed photographic device and a loading structure are triggered synchronously, the high-speed photographic device is used for shooting the whole process of blasting of the loading structure; according to the shooting speed set by the high-speed photographic device, two adjacent frames of images shot by the high-speed photographic device before and after a given moment are analyzed, the moving speed of the wave front of impact waves generated by blasting of the loading structure is determined; according to impact wave compatibility relation and an impact wave adiabatic equation of polytropic gases, corresponding impact wave hyperpressure is obtained by computing through the moving speed of the wave front of the impact waves. According to the non-contact type air impact wave hyperpressure measuring method, errors brought by a traditional measuring method are avoided, measuring is safe, data are reliable, operation is convenient, and measured data can be verified by high-speed video playback.

A scheduling method and apparatus for providing a high speed video stream service in a communication system are provided. The method includes receiving power information for ensuring a minimum data rate from a Radio Network Controller (RNC) through Radio Resource Control (RRC) signaling, receiving power information for a variable data rate from a Node B through scheduling, and performing a high speed video stream service on the basis of the power information received from the RNC and the Node B.

The invention discloses a visual test device for penetration grouting of broken coal and rock mass and a test method of the visual test device. The device comprises a fully transparent grouting barrel, wherein the lower end of the fully transparent grouting barrel is connected with a base, a sealing pressure head and a hollow loading pressure head are arranged at the upper end, a sealing ring is arranged around the sealing pressure head, and an exhaust pipe and an exhaust valve are arranged at the top; an electric cement mixing station, a controllable high-pressure pneumatic grouting pump anda digital display multi-element information monitoring system are communicated with a grouting conveying hole and a base grouting hole in the base through a high-pressure-resistant grouting pipe and aflange plate; a high-speed video camera is used for observing the diffusion form and the whole process of slurry containing non-radioactive tracers such as alizarin red or carmine in the broken coaland rock mass in real time. The device and the method have the beneficial effects that the device is transparent and visible, reasonable in structure, simple to manufacture, low in cost, safe to operate and reliable to use.