Abstract: A method and a device for extracting local features of a 3D point cloud are disclosed. Angle information and the concavo-convex information about a feature point to be extracted and a point of an adjacent body element are calculated based on a local reference system corresponding to the points of each body element. The feature relation between the two points can be calculated accurately. The property of invariance in translation and rotation is possessed. Since concavo-convex information about a local point cloud is contained during extraction, the inaccurate extraction caused by ignoring concavo-convex ambiguity in previous 3D local feature description is resolved.

Abstract: A method for video encoding based on an image super-resolution, the method including: 1) performing super-resolution interpolation on a video image to be encoded using a pre-trained texture dictionary database to yield a reference image; in which the texture dictionary database includes: one or multiple dictionary bases, and each dictionary basis includes a mapping group formed by a relatively high resolution image block of a training image and a relatively low resolution image block corresponding to the relatively high resolution image block; 2) performing motion estimation and motion compensation of image blocks of the video image on the reference image to acquire prediction blocks corresponding to the image blocks of the video image; 3) performing subtraction between the image blocks of the video image and the corresponding prediction blocks to yield prediction residual blocks, respectively; and 4) encoding the prediction residual blocks.

Abstract: A method for image de-blurring includes estimating an intermediate image L by marking and constraining an edge region and a smooth region in an input image; estimating a blur kernel k by extracting salient edges from the intermediate image L, wherein the salient edges have scales greater than those of the blur kernel k; and restoring the input image to a clear image by performing non-blind deconvolution on the input image and the estimated blur kernel k. Imposing constraints on the edge region and the smooth region allows the intermediate image to maintain the edge while effectively removing noise and ringing artifacts in the smooth region. The use of the salient edges in the intermediate image L enables more accurate blur kernel estimation. Performing non-blind deconvolution on the input image and the estimated blur kernel k restores the input image to a clear image achieving desired de-blurring effect.

Abstract: A self-adaptive motion estimation module includes a macro block division unit, a macro block selection unit, a motion intensity judgment unit, and a motion estimation unit. A video frame to be encoded is divided into macro blocks by the macro block division unit. The macro block selection unit sequentially selects an image block in a video frame as the current image block. The motion intensity judgment unit determines a motion intensity of the current image block, and makes a self-adaptive selection of a motion estimation method for performing motion estimation on the current image block according to the motion intensity of the current image block. The motion estimation unit performs motion estimation on the current image block according to the motion estimation method selected by the motion intensity judgment unit. Before motion estimations are performed on the image blocks, motion intensities of image blocks are determined.

Abstract: A method for improved prediction in boundary samples in prediction units (PUs) in pixel based prediction. The method includes computing predicted values for a plurality of border pixels in a PU using corresponding left, upper, and upper left adjacent neighboring pixels in the PU. The method further includes computing predicted values for a second plurality of pixels in the PU using sample based angular prediction (SAP). The second plurality of pixels includes all other pixels in the PU besides the plurality of border pixels.

Abstract: A method and a device for post-processing depth/disparity maps adopt a strategy of combining edge information and segmentation information when detecting irregular edge regions. The method includes dividing a color image into super pixels when performing image segmentation on a color image; partitioning a grayscale range into a preset number of intervals, and for each super pixel, statistically obtaining a histogram of all the pixel points that fall within the intervals; determining, in a current super pixel, whether a ratio of the number of pixels contained in the interval having a maximum interval distribution value, to the total number of pixels in the current super pixel is less than the first threshold; and if so, further dividing the current super pixel using a color-based segmentation method. The disclosed method and device improve accuracy of color image division while ensuring image processing speed, thus improving detection accuracy of the irregular edge regions.

Abstract: A multi-function device capable of temporarily stopping water output, comprising: a water output device, having a water input end and a water output end, the water output device is provided with a plurality of water channels inside, to connect to the water input end and the water output end; and a switching mechanism, disposed in the water output device, to drive water flow to flow or stop, to realize water switching, the switching mechanism is located in the water channels nearing the water input end. The multi-function device is compact in structure. Wherein, the switching mechanism is positioned to block the water channel before water enters into the switching chamber. Therefore, weight of the water output device will not be increased, while avoiding damages to the water separation plate and the tight seal piece caused by higher water pressure.

Abstract: A shower head includes a body provided with a waterway. A first switch is movably mounted on the body to be responsible for selectively opening and closing the waterway and a second switch movably mounted on the body to be responsible for selectively changing water output patterns. The first switch has a rear pushbutton, a driving rod movably connected to the rear pushbutton and a diverting element movable relative to the body to be responsible for closing or opening the waterway. The second switch has a front pushbutton, a sliding element having a rack formed on a face thereof, a diverter rotatably received inside the body, a gear rotatably received inside the body and having first ratchet teeth and a rotor having second ratchet teeth selectively engaged with the first ratchet teeth to allow the rotation of the gear to drive the second ratchet teeth of the rotor to disengage with the first ratchet teeth of the gear as well as the rotor and the diverter to rotate accordingly.

Abstract: A virtual viewpoint synthesis method and system, including: establishing a left viewpoint virtual view and a right viewpoint virtual view; searching for a candidate pixel in a reference view, and marking a pixel block in which the candidate pixel is not found as a hole point; ranking the found candidate pixels according to depth, and successively calculating a foreground coefficient and a background coefficient for performing weighted summation; enlarging the hole-point regions of the left viewpoint virtual view and/or the right viewpoint virtual view in the direction of the background to remove a ghost pixel; performing viewpoint synthesis on the left viewpoint virtual view and the right viewpoint virtual view; and filling the hole-points of a composite image.

Abstract: A method and apparatus for improving performance in communication systems is provided. In one implementation, information is accessed indicating the quality of at least one communication channel. Based on the accessed information, a modulation scheme is indicated for sending data over the channel encoded with a rateless code. Various different information relating to the communication channel can be used to determine a quality metric for the channel.

Abstract: A method and apparatus are described including defining a neighbor set for each access point, selecting a first clock in a first access point, the selected clock having a highest accuracy as a grand master clock, advising neighboring access points to synchronize with the selected grand master clock and transmitting a message to schedule a quiet period based on the grand master clock. Also described are a method and apparatus including receiving a beacon message, inspecting clock descriptors in the beacon message, selecting a best master clock responsive to the inspection and transmitting a message to schedule a quiet period based on the selected best master clock.

Abstract: A water output device having ultrasonic pulverizing function comprises a shower main body, which includes a decoration box, detachably embedded in the shower main body, or forming with the shower main body into a body; and an ultrasonic pulverizing device, disposed in the decoration box. The ultrasonic pulverizing device includes: a water box, with its upper portion provided with a water input port, and with its lower portion provided with a water output port; an ultrasonic wave generator, fixed to a water output port at a lower portion of the water box through a fixing block, and having a web-shape structure inside, for allowing small particles of water mist to pass through; and a control device, disposed at a side of the water box, and including a power source module, a charging module, a vibration circuit module.

Abstract: A multi touch control type water output switching shower device, comprising: a shower main body; an electrical switching mechanism, disposed in an inner chamber of the shower main body, to switch between a plurality of water output channels; a control electrical circuit board, disposed in the chamber of the shower main body, and connected electrically to the electrical switching mechanism; a power supply unit, connected electrically to the control electrical circuit board, to supply power to the electrical switching mechanism; a water separating frame, disposed in the inner chamber of the shower main body through using bolts; a plurality of touch press keys, disposed on the control electrical circuit board, to control the electrical switching mechanism to perform various actions; and a plurality of touch areas, disposed on a surface of a shower device, corresponding to the respective touch press keys.

Abstract: A video codec including a memory and a processor operably coupled to the memory. The processor is configured to compute a reconstructed pixel based on a residual pixel and a first prediction pixel and compute a second prediction pixel in a directional intra prediction mode based on the reconstructed pixel, where the first and second prediction pixels are located in a same block of a video frame. A method for intra prediction including computing a prediction pixel adaptively based on a plurality of reconstructed neighboring pixels, where a distance between the prediction pixel and each of the plurality of reconstructed neighboring pixels is one.

Abstract: Embodiments of the present invention disclose a processing method of a wireless fidelity technology and a user equipment, where implementation of the method includes: detecting whether a radio link failure occurs at an air interface of a wireless fidelity network; resetting a bottom layer of the wireless fidelity network, and suspending a radio bearer to an access point of the wireless fidelity network, when it is detected that the radio link failure occurs at the air interface of the wireless fidelity network, during a process that a base station distributes mobile data for a user equipment by using the wireless fidelity technology; and restoring the radio bearer to the access point of the wireless fidelity network, when the resetting of the bottom layer of the wireless fidelity network is completed, and it is detected that the air interface of the wireless fidelity network is restored to be normal.

Abstract: The invention relates to a wireless home gateway apparatus and methods of wirelessly delivering audio and/or video programs between a home gateway and a client and mitigating interference thereon. Specifically, the present invention relates to transmitting an audio/video program on two white space channels and alternately stopping transmission on one of said channels to search for external transmissions on the white space channel. The present invention permits the wireless home gateway to continuously transmit an audio/video program to a client while periodically searching for transmitters on each of the white space channels.

Abstract: The disclosure is applicable to the technical field of mobile terminals and provides a method and a system for awakening a mobile terminal and an application. The method includes: collecting a sliding gesture of a user on a screen; matching the sliding gesture with a pre-stored sliding gesture; and, if the match succeeds, unlocking the mobile terminal and opening the application associated with the sliding gesture. The method and system for awakening a mobile terminal and an application provided by the disclosure, by binding a sliding gesture to an application, allow a user to open the application while awakening the mobile terminal through the sliding gesture, bringing a great convenience for a user to quickly open a corresponding application and omitting the process of finding application after awakening a mobile phone.

Abstract: The present invention provides a method and a device for detecting interest points in an image. The method includes: acquiring an original input image; performing down-sampling processing on the original input image, so as to obtain a plurality of sampling images with different resolutions; dividing each sampling image into a plurality of small image blocks; performing filtering processing on the plurality of small image blocks in each sampling image in sequence by using Laplacian-of-Gaussian filters, so as to obtain filtered images of the plurality of small image blocks in each sampling image; and acquiring interest points in an image in filtered images of the plurality of small image blocks in each sampling image. The present invention is used for solving the problems of more memory consumption and a low detection speed in the prior art.

Abstract: A method and apparatus for improving performance in communication systems is provided. In order to maintain the real time constraints of the communication systems, time intervals and indication signals are used in various implementations to indicate and/or force subsequent transmissions of encoded data. An indication signal can include, for example, modulation modification information for subsequent transmissions. In various other implementations, a quality metric is computed for the communication channel and is used to provide modified modulation scheme information to be subsequently used on the communication channel.

Abstract: A method and apparatus for improving performance in communication systems is provided. In one implementation received encoded data is decoded using an inner rateless decoder to produce a series of decoded rateless outputs. The series of decoded rateless outputs is combined to produce a block, and the block is decoded using an outer block decoder. In another implementation, encoded data for a data block encoded with a rateless code is received. It is determined that an initial amount of mutual information for the data block has been received, the initial amount being an amount expected to allow decoding of the received encoded data. Additional encoded data for the data block is received. It is determined that an extra amount of mutual information for the data block has been received beyond said initial amount of mutual information.