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173results about How to "Guaranteed running speed" patented technology

Human face detection method and detection device based on multi-task cascade-connection convolution neural network

The invention discloses a human face detection method and a detection device based on multi-task cascade-connection convolution neural network, wherein the method comprises: establishing a cascade-connection multi-level convolution neural network; using the human face front samples, the human face back samples, some parts of the human face and the human face's key point samples as the training samples to train the multi-level convolution neural network to learn the tasks of human face categorizing, human face area position regression and human face's key point positioning; and utilizing the well trained multi-level convolution neural network to make human face detection from the to-be-detected image wherein in the training stage, both the online manner and the offline manner are combined to extract the human face back samples as the training samples. According to the invention, based on the cascade-connection multi-level convolution neural network, it is possible to learn the characteristics with stronger robustness, and at the same time, through the combination of the online manner and the offline manner to extract the back samples, the categorizing capability of the network is enhanced, so that the detection capability and the accuracy of the network are increased, and that the running speed of the method in an actual product is ensured.
Owner:智慧眼科技股份有限公司

Voice recognition method and device

The embodiment of the invention discloses a voice recognition method and device. The voice recognition method comprises the following steps: receiving an input voice segment; calculating multiple acoustical scores of each frame in the voice segment according to the spatial distribution clustering (SDC); comparing the obtained multiple acoustical scores with vocabularies in a vocabulary library in a mobile terminal, and accumulating the compared acoustical scores of each frame, wherein one has the highest aggregate score is named as the optimal acoustical aggregate score; taking the sum of the highest acoustical score in each frame of the voice segment as a background acoustical aggregate score; comparing whether the optimal acoustical aggregate score and the background acoustical aggregate score can meet a reserved threshold or not; if no, rejecting to recognize the voice segment. The method can show that larger difference values generated by the comparison of the sum of the highest acoustical score in each frame of the voice segment and the input voice segment as well as the sum of the highest acoustical score in each frame of the voice segment and the vocabularies in the vocabulary library in the mobile terminal, so that the frequency of the false operations of the mobile terminal according to the voice input is greatly reduced, and the user experience is improved.
Owner:BEIJING UNISOUND INFORMATION TECH

Railway passenger train body

ActiveCN103010240AGuaranteed train speedImprove securityRailway componentsEngineeringPassenger train
The invention provides a railway passenger train body. The railway passenger train body comprises a passenger train body bottom plate and passenger train body side walls arranged at two sides of the passenger train body; a sliding door is arranged at a through port on one of the passenger train body side wall; the passenger train body bottom plate is covered with an interior floor board; and a first gap is formed between the internal floor board and the top surface of the passenger train body bottom plate; a pedal is arranged in the first gap; a gear mechanism is fixedly arranged between the pedal and the sliding door; the gear mechanism comprises a transmission shaft capable of being self rotated and a first gear and a second gear which are respectively fixedly arranged on the transmission shaft; a first rack extending along the longitudinal direction is fixedly arranged on the sliding door; a second rack extending along the horizontal direction is fixedly arranged on the pedal; the first gear is engaged with the first rack, the second gear is engaged with the second rack, so that the second gear which rotates along with the transmission shaft can drive the pedal to move towards the external side of the passenger train body bottom plate. According to the railway passenger trail body provided by the invention, the pedal can be stretched out when the sliding door is opened, the gap between the station and the passenger train body is blocked, and thus, the safety on a railway passenger train and the speed of the railway passenger train are improved.
Owner:CRRC TANGSHAN CO LTD

Intelligent acquisition method and device for vehicular photographing equipment, and car digital video recorder

The invention discloses an intelligent acquisition method and device for vehicular photographing equipment, and a car digital video recorder. The intelligent acquisition method comprises the following steps of: performing photographing according to a photographing frequency so as to generate video data, and sampling the video data according to a sampling frequency so as to obtain sample images; calculating the brightness average value of the sample images, wherein the brightness average value of the sample images is an average value of brightness values of continuous X-frame sample images, and X is a positive integer; and determining a pre-set photographing frequency corresponding to the brightness average value according to the brightness average value, and performing photographing according to the pre-set photographing frequency corresponding to the brightness average value so as to generate the video data. According to the intelligent acquisition method disclosed by the invention, the brightness values of the continuous X-frame sample images in the video data are acquired, so that the brightness average value is obtained and used for adjusting the photographing frequency in real time; therefore, the better video data is obtained; and recorded data with relatively high referential meanings is provided for users.
Owner:BEIJING QIHOO TECH CO LTD +1

Method and system for on-demand loading of TR069 parameter node in home gateway equipment

The invention discloses a method and system for on-demand loading of a TR069 parameter node in home gateway equipment, and relates to the field of home gateway service configuration management. The method includes the following steps: TR069 parameter configuration information in home gateway equipment that needs to be used is used to form a TR069 parameter configuration file, and load the TR069 parameter configuration file to a memory; a parameter cutting file is configured, and target node cutting processing flow is performed according to the parameter cutting file; a parameter loading file is configured, and target node loading flow is performed according to the parameter loading file; the TR069 parameter configuration file after cutting and modification is stored to a Flash file; and a memory object tree is initialized according to the TR069 parameter configuration file, finished. The method for on-demand loading of the TR069 parameter node in the home gateway equipment is relatively strong in flexibility, has few configuration parameters, does not exist a great deal of information redundancy, and is not only very convenient to maintain, but can also ensure normal starting speed and operation speed of the home gateway equipment, thereby facilitating use of people.
Owner:FENGHUO COMM SCI & TECH CO LTD

Application running method and application running device

The invention belongs to the technical field of networks and discloses an application running method and an application running device. The method includes: receiving a starting instruction for a first plug-in application in a platform application; extracting application feature information of plug-in applications installed in the platform application; matching the application feature information of the plug-in applications in a malicious plug-in feature library to recognize malicious plug-in applications; searching and killing the recognized malicious plug-in applications; judging whether the plug-in applications installed in the platform application are all matched or not, and clearing redundant progresses in a terminal system after matching is finished; running the first plug-in application in the platform application after clearing is finished. The application running method and the application running device have advantages that in each running process of the first plug-in application, potential safety hazards caused by malicious plug-in applications such as malicious deduction, privacy stealing and information fraud can be effectively avoided to improve safety of the terminal system while electric energy can be saved, and internal storage occupied by the redundant progresses can be released, so that running speed of the first plug-in application is guaranteed.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Video reorganization system capable of automatically partitioning shot and video reorganization method thereof

The invention relates to the technical field of multimedia information processing, and provides a video reorganization system capable of automatically partitioning a shot and a video reorganization method thereof. The video reorganization system is as follows: a partition processor is respectively connected to an original video library and a reorganizer; and a generation and storage module is connected with the reorganizer. The video reorganization method comprises the following steps that: a user opens the original video library and extracts a video in need of being processed from the original video library; the partition processor performs automatic shot partition of the video, such that an independent video processing unit is obtained; a single-video effect library, a replacement background module and a multi-video operation module of the reorganizer are used for correspondingly processing a video processing unit respectively; and the processed video is transmitted to the generation and storage module and then stored and played. The video reorganization system disclosed by the invention is convenient to install and low in system hardware requirement and is capable of realizing operations, such as automatic shot partition, single-video effect processing, background replacement and multi-video mixing, on the same platform; therefore, the video processing efficiency of the video reorganization system is ensured; and thus, the video reorganization system has perfect functionality.
Owner:SHANGHAI UNIV OF ENG SCI

Region growth detection method based on multiple judgments

InactiveCN106447659AComprehensive and Accurate Growth MatchIncrease breadthImage enhancementImage analysisPattern recognitionImaging processing
The invention discloses a region growth detection method based on multiple judgments and belongs to the technical field of image processing. The region growth detection method is used for processing medical MRI (Magnetic Resonance Imaging) and CT (Computed Tomography) images and accurately extracting out the required tissue images. The region growth detection method provided by the invention comprises the steps: firstly, manually choosing an initial point of a target image to be detected, wherein the choosing range is a target range; then, gradually and forcefully expanding the growth range to all image data of the choosing range based on an original region growth scheme, optimizing matching of discrete points and detecting whether the discrete points belong to the growth region based on edge detection; continuously optimizing the growth results in a growth process through the initial point optimization standard gray to guarantee that the required large region images are matched and avoiding matching interference points which can meet the judgment conditions; finally, performing corrosion and expansion treatment on the growth result, removing the interference points, truly optimizing the whole matching process on the whole and obtaining the more accurate results.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

A method and system for retrieving a fake-licensed vehicle

A method and a system for retrieving a fake-licensed vehicle are disclosed. The method comprises: pre-training a classification model for vehicle filtering, obtaining the type of target vehicle, color, sub-brand, license plate number and feature area information, removing the license plate number information of the target vehicle to obtain a second image, removing a license plate number information of an original test set vehicle from that vehicle passing record to obtain a second test set, filtering a second test set is associated with the target vehicle type, colors, sub-brands and differentvehicle images to get a third test set, selecting a vehicle image set according with the second image in similarity demands from the third test set, restoring the license plate number information ofthe vehicle in the image set, and matching and verifying the license plate information of the vehicle in the image set and the license plate information of the first image, so as to achieve the purpose of matching and verifying. The vehicle image set in the third test set and the vehicle image in the second image meet the similarity requirement. The technical scheme of the invention solves the technical problems of precision retrieval and verification that the prior art can not realize for the brand-set car.
Owner:GOSUNCN TECH GRP

Computer unified device architecture (CUDA)-based multi-system signal frequency rapid acquisition implementation method

The invention relates to a computer unified device architecture (CUDA)-based multi-system signal frequency rapid acquisition implementation method. The method is characterized by being based on a high-performance private computer (PC), using the CUDA, and realizing rapid acquisition of the multi-system signal frequency through a parallel way. The method comprises the implementation steps of setting Doppler and Doppler changing rate segments; determining the number of blocks of each graphics processing unit (GPU) kernel function and the number of threads of each block; reading signal data into a GPU card overall storage space; starting a down-conversion and integrator module; performing parallel fast Fourier transform (FFT) operation; searching the maximum spectral line and corresponding Doppler changing rate segments and Doppler segments through a parallel reduction manner; and computing estimated values of carrier frequency offset and the Doppler changing rate to complete acquisition. The signal frequency rapid acquisition algorithm is in accordance with the CUDA and working characteristics of the GPU, so that the method can take full advantage of the parallel computing power of the GPU, is suitable for multiple systems of signals, effectively improves the acquisition speed and is easy to realize.
Owner:BEIJING RES INST OF TELEMETRY +1
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