-
公开(公告)号:US10600238B2
公开(公告)日:2020-03-24
申请号:US16336918
申请日:2017-03-09
Inventor: Tieniu Tan , Jing Dong , Wei Wang , Bo Peng
Abstract: An image tampering forensics method includes labeling an observation clue of a to-be-detected image, constructing a three-dimensional morphable model of an object of a category to which the target object belongs, estimating a three-dimensional normal vector to the supporting plane according to the observation clue, estimating a three-dimensional attitude of the target object according to the observation clue and the three-dimensional morphable model to obtain a plane normal vector to a plane where a side of target object in contact with the supporting plane is located, computing a parallelism between the target object and the supporting plane, and/or among a plurality of target objects, and judging whether the to-be-detected image is a tampered image or not according to the parallelism.
-
公开(公告)号:US20200045023A1
公开(公告)日:2020-02-06
申请号:US16316290
申请日:2018-06-07
Inventor: Haibin YU , Peng ZENG , Wenli SHANG , Long YIN , Xianda LIU , Jianming ZHAO , Chunyu CHEN
Abstract: The present invention relates to a network guard unit for an industrial embedded system and a guard method. The specific method is to form the network guard unit (NGU) through security technologies, such as integrated access control, identity authentication and communication data encryption, to provide active guard for a site control device. The NGU comprises an access control module, an identity authentication module, a data encryption module, a key negotiation module and a PCIE communication module, and supports the communication modes of dual network cards and PCIE bus. The present invention builds a secure and trusted operating environment for industrial control systems in combination with an active guard technical means in the field of information security on the basis of ensuring the correctness and the feasibility of security of various terminal devices in the industrial control systems.
-
公开(公告)号:US10332239B2
公开(公告)日:2019-06-25
申请号:US15557086
申请日:2015-06-12
Inventor: Ruoshan Guo , Lei Wang , Rui Han , Chen Lin , Donglin Wang
Abstract: The present invention provides apparatus and method for parallel polyphase image interpolation. The apparatus comprises: a local memory, a first memory access control unit, a second memory access control unit, a source image data buffering unit, a filter coefficient buffering unit, a multiply-accumulator, a third memory access control unit and a state machine; the first memory access control unit is configured for obtaining source image data from the local memory and buffering them into a source image data buffering unit; the second memory access control unit is configured for obtaining filter coefficients from the local memory and buffering them into a filter coefficient buffering unit; the source image data buffering unit is configured for inputting source image data to each multiply-accumulator, the filter coefficient buffering unit is configured for broadcasting filter coefficients corresponding to the source image data to the multiply-accumulators; and the multiply-accumulator is configured for performing multiply-accumulation operation on the source image data and the filter coefficients, and outputting the multiply-accumulation result every F clocks. The interpolation apparatus of the present invention is reconfigurable and can support interpolation filters with any order, so it is universal.
-
184.
公开(公告)号:US10264469B2
公开(公告)日:2019-04-16
申请号:US15527244
申请日:2014-12-11
Inventor: Wei Liang , Haibin Yu , Chaofan Ma , Xiaoling Zhang
Abstract: The present invention relates to a robust coverage method for relay nodes in a double-layer structure wireless sensor network. The present invention is a local search based relay node 2-coverage deployment algorithm which, by means of reducing the global deployment problem to a local deployment problem, achieves optimal deployment while ensuring robustness. The method specifically comprises two steps: first 1-coverage and second 1-coverage, wherein the first 1-coverage comprises the three steps of construction of relay node candidate deployment locations, grouping of sensor nodes and local deployment of relay nodes, wherein the sensor nodes are grouped by means of a novel grouping method, and the complexity of the algorithm is reduced while ensuring optimal deployment. The second 1-coverage adjusts a threshold, selects from every group the sensor nodes covered by just one relay node, and uses a 1-coverage method to re-implement 1-coverage of the sensor nodes, thereby ensuring robustness, reducing the number of relay nodes deployed, and shortening the problem-saving time.
-
公开(公告)号:US10242432B2
公开(公告)日:2019-03-26
申请号:US15557085
申请日:2015-04-16
Inventor: Ruoshan Guo , Lu Ye , Rui Han , Yang Luo , Renjun Tang , Fengli Yan , Xiaoli Tang
Abstract: The present invention discloses a video denoising system based on noise correlation, said system comprises a unit for estimating correlation of noises of adjacent pixels, which receives input of the inter-frame difference and motion probability, and estimates correlation of noises of adjacent pixels according to correlation of inter-frame differences between adjacent pixels in a still region, and outputs a noise correlation coefficient; a maximum filtering weight adjusting unit, which adaptively adjusts the maximum weight for temporal filtering according to the noise correlation coefficient and outputs the maximum weight for temporal filtering; the maximum weight for temporal filtering can control the range of fluctuation of the temporal filtering weight and the difference between the denoising effects for different pixels. The system of the present invention can solve the problem of “speckle” noise occurred when the video noises have adjacent correlation in the conventional temporal denoising system for videos.
-
公开(公告)号:US20190042537A1
公开(公告)日:2019-02-07
申请号:US16068914
申请日:2016-07-26
Inventor: Huan LI , Xiaoqin WANG , Chen GUO
CPC classification number: G06F17/142 , G06F7/4812
Abstract: A method for concurrent reading of mixed radix DFT/IDFT data, a method for concurrent calculation of mixed radix DFT/IDFT method, an apparatus for concurrent reading of mixed radix DFT/IDFT data, and an apparatus for concurrent calculation of mixed radix DFT/IDFT. The method for concurrent reading includes: configuring dual circulation parameters according to the number of points corresponding to the number of series to be computed and the number of points corresponding to the number of series accomplished; then, determining the value size between the maximum number of concurrently read data and the product of the number of points corresponding to the number of series accomplished; and based on the result of determination, calculating the dual circulation parameters corresponding thereto according to the result of determination, and concurrently reading data based on the calculated dual circulation parameters.
-
公开(公告)号:US10157320B2
公开(公告)日:2018-12-18
申请号:US14392309
申请日:2013-06-28
Inventor: Feiyue Wang , Ye Li
Abstract: The invention discloses a vehicle detection method based on hybrid image template. This method consists of the three steps. Firstly, use no less than one vehicle image for template learning. Secondly, use information projection algorithm to learn a hybrid image template from the training images for vehicle object. The hybrid image template consists of no one less than image patch. Meanwhile, calculate the likelihood probability distribution of this template. Thirdly, use the learned HIT template to detect vehicle objects from testing images. The invention is suitable to detect vehicles with various vehicle shapes, vehicle poses, time-of-day and weather conditions. Besides vehicle localization, this method can also provide the detailed description of vehicle object.
-
公开(公告)号:US20180042537A1
公开(公告)日:2018-02-15
申请号:US15555525
申请日:2015-03-03
Inventor: Xin Zhang , Nianming Zuo , Tianzai Jiang , Ruirui Zhao
IPC: A61B5/1455 , A61B5/00
CPC classification number: A61B5/14553 , A61B5/0013 , A61B5/0022 , A61B5/6803 , A61B5/7225 , A61B5/742 , A61B5/7475 , A61B2560/0214 , A61B2562/0238 , A61B2562/164 , A61B2562/166
Abstract: The wireless wearable brain blood-oxygen monitoring system provided by the present Application comprises a monitoring control device, a detection device, a fixing device and a flexible printed circuit board; said monitoring control device is used for processing a first optical signal to generate a digital signal and sending said digital signal to a portable mobile terminal; said detection device is used for receiving the first optical signal sent by said monitoring control device, and calculating a degree of blood-oxygen saturation in a detected area according to an incident light intensity and an emergent light intensity of the first optical signal; said flexible printed circuit board is used for fixing a photoelectric conversion means in said detection device; said fixing device is used for fitting said monitoring control device and said detection device to the forehead. The present Application can make the brain blood-oxygen monitoring system to monitor in real time and can make it portable.
-
公开(公告)号:US20170290524A1
公开(公告)日:2017-10-12
申请号:US15512781
申请日:2014-09-19
Inventor: Tianzi Jiang , Nianming Zuo , Xin Zhang , Yujin Zhang , Hao Liu
IPC: A61B5/0478 , G06F3/06 , A61B5/048
CPC classification number: G16H10/00 , A61B5/00 , A61B5/0476 , A61B5/14553 , G06F3/0643 , G16H10/60 , G16H40/63
Abstract: A method for storing data of photoelectrically synchronous brain activity recording, said method comprising: generating data when a photoelectrically synchronous brain activity detection system is operating; generating from said data a data storage file comprising a basic information data segment, a near-infrared spectrum data segment and a brain electrical activity data segment, and sequentially storing said data segments into a .neg file in binary form according to the above order. The method can store comprehensive test information, flexibly configure the near-infrared and brain electrical measurement information, and realize synchronous storage of near-infrared data and brain electrical data and maintain file version compatibility.
-
公开(公告)号:US09731096B2
公开(公告)日:2017-08-15
申请号:US14770223
申请日:2013-06-25
Inventor: Guibin Bian , Zengguang Hou , Xiaoliang Xie , Long Cheng , Min Tan , Zhenqiu Feng , Xiaohu Zhou
CPC classification number: A61M25/0105 , A61B19/2203 , A61B34/10 , A61B34/20 , A61M25/0113 , A61M25/09041
Abstract: A catheter or guide wire manipulating device for vascular intervention is provided, comprising a thumb component (3), a forefinger component (4), a driving component (1) and a catheter/guide wire support component (2); the thumb component comprises a roller (7) configured to advance or retreat the catheter/guide wire; the thumb component (3) is configured to drive the catheter/guide wire to rotate clockwise or counterclockwise through a combination motion of the components; the forefinger component (4) is configured to cooperate with the thumb component (3) to implement the rotation and the advancement of the catheter/guide wire by moving manually away from the thumb component, and returning by a pull force of a spring (23) after being released; the driving component (1) is configured to drive the thumb component (3) and the forefinger component (4); the catheter/guide wire support component (2) comprises a Y adapter fixation configured to install a Y adapter and an entry support configured to support and guide the catheter/guide wire into a mechanism.
-
-
-
-
-
-
-
-
-