Patents
Literature
Eureka-AI is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Eureka AI

60results about How to "Narrow your search" patented technology

Fuzzy clustering based image retrieval method

ActiveCN104298713AMeet the needs of real-time retrievalGuaranteed retrieval efficiencyCharacter and pattern recognitionSpecial data processing applicationsImage retrievalFuzzy clustering
The invention discloses a fuzzy clustering based image retrieval method. The fuzzy clustering based image retrieval method comprises the following steps of S11, establishing a characteristic value library for images in an image library and numbering the images ; S12, selecting N images with image separation distances larger than a distance threshold value A1 from the image library and conducting first-time classification on the residual images to form N categories of image sets; S13, conducting the step S12 on the image sets with image quantities larger than a quantity threshold value in the N categories of image sets till the image quantity of each image set is smaller than the quantity threshold value and obtaining M representative points; S14, partitioning all images in the image library into the image sets represented by highest-similarity-level representative points according to similarity levels between the images and the M representative points; S15, conducting characteristic valuing on input images to be retrieved, respectively calculating the similarity levels between the input images and all representative points and selecting a plurality of highest-similarity-level representative points to perform retrieval. The fuzzy clustering based image retrieval method narrows a retrieval range on the basis that retrieval efficiency is ensured, and reduces retrieval working amount.
Owner:BEIHANG UNIV

Image retrieval method and apparatus

The invention relates to an image retrieval method and apparatus. The method comprises the steps of: obtaining a to-be-retrieved image from a user terminal; converting the to-be-retrieved image to HSV space from RGB space; quantizing the converted to-be-retrieved image into N-dimensional color features; sorting the feature values of the N-dimensional color features in a descending order, and selecting the first M-dimensional color features as main color of the to-be-retrieved image; determining a cluster index table name of the to-be-retrieved image according to an index value corresponding to the main color; querying whether a cluster index table with the same name as the cluster index table of the to-be-retrieved image exists in the established cluster index table according to a name of the cluster index table; if existence, obtaining an image index of the corresponding image; querying main color percentage of the corresponding image according to the obtained image index; calculating the image similarity according to the main color percentage; and returning an image matched with the to-be-retrieved image to the user terminal according to the similarity. The image retrieval method and apparatus disclosed by the invention remarkably improve the image retrieval efficiency and accuracy.
Owner:CHINA TELECOM CORP LTD

Color video matting method based on depth foreground tracking

The invention proposes a color video matting method based on depth foreground tracking, which relates to the field of digital image processing. The method comprises: before the starting of the matting, defining a clear search area by a user at a designated foreground area of a depth image; then in the search box, using the depth information difference of the foreground, segmenting the foreground targets; reconstructing the depth image to the resolution of the color image and performing the registration so that the pixels of the two gradually correspond to each other and generating a three-part map; according to the color information of the color image, making the refined adjustment to the three-part map; based on the three-part map and the color image, using the super-pixel gradient for fast foreground extraction; and finally according to the extracted foreground position, establishing and updating the motion equation; predicting the foreground center of the next frame; and updating the search box position. With the above steps, the video matting can be completed frame by frame. Compared with the current video matting algorithm, the invention greatly simplifies the operation, has low complexity of the algorithm, and realizes the real-time and accurate video foreground matting.
Owner:长春长光启衡传感技术有限公司

Mobile terminal, and method and device for seeking mobile terminal

The invention discloses a mobile terminal, and a method and a device for seeking the mobile terminal, and belongs to the technical field of communication. The method for seeking the mobile terminal includes flow paths: sending an appointed communication signal trigger instruction to the mobile terminal through the device for seeking the mobile terminal so as to enable the mobile terminal to start at lease one type of communication signal; seeking the communication signal started by the mobile terminal; when the communication signal of the mobile terminal is sought, judging whether the communication signal is a unique communication signal sent by the mobile terminal; if the communication signal is the unique communication signal, using the communication signal to build communication connection between the device for seeking the mobile terminal and the mobile terminal, and if the communication signal is not the unique communication signal, building communication connection between the device for seeking the mobile terminal and the mobile terminal by selecting a communication signal shortest in effective distance; sending an indication signal to a user, and guiding the user to move towards the mobile terminal. By using the mobile terminal, and the method and the device for seeking the mobile terminal, the device for seeking the mobile terminal can switch between all the communication signals according to the distance between the device for seeking the mobile terminal and the mobile terminal, and the mobile terminal can be sought out whether the distance between the mobile terminal and the user is long or short.
Owner:NUBIA TECHNOLOGY CO LTD

Cross-domain vision search method based on significance detection

ActiveCN106815323ASolve the problem that it is difficult to find multiple positive samples at the same timeHighlight "distinctive features"Character and pattern recognitionSpecial data processing applicationsFeature extractionImaging Feature
The invention discloses a cross-domain vision search method based on significance detection. The method comprises the following steps: firstly, utilizing each super-pixel zone boundary connecting value to endow all the zones with different significance values, thereby acquiring a main object zone; performing multi-scale treatment on a target image in a database; extracting the feature of the main object zone, thereby acquiring a target image feature template; performing feature extraction on the main object zone of an inquired image and training a linear classifier; performing iteration training on a large quantity of negative samples, thereby acquiring an optimized inquired image feature template; finally, while searching, returning a zone with the highest response score as a final searching result according to the matching degree of each target image feature template and the inquired image feature template. According to the invention, the significance detection for the main zone is performed, so that the influence of a background zone on the searching result is reduced, the searching precision and efficiency can be effectively increased in the cross-domain vision search and the robustness is excellent.
Owner:XIDIAN UNIV

Closed large-area intelligent monitoring system based on code recognition and recognition method thereof

The invention provides a closed large-area intelligent monitoring system based on code recognition and a recognition method thereof. The system comprises an identification subsystem and a video subsystem. The video subsystem carries out authorization registration on people to be registered in a non-closed area. During registration, the unique number is sprayed to an authorized person through ultraviolet or infrared paint, after spraying, the number and a camera shoot calibration object data, the calibration object data are sent to an image index server to load the number and a registration photo, and storage and filing are carried out for checking during identification of the identification subsystem. And the identification subsystem is used for performing identification judgment, classification and processing according to the serial numbers and the pictures shot by the AI camera in the video subsystem in a closed large area in real time. According to the system, the invisible light ismarked with a unique number, high-speed irradiation and shooting are carried out, the number is accurately identified in a long distance, high-speed checking and identification are carried out, and an AI closed area intelligent monitoring system is adopted, so that the identification accuracy and efficiency are effectively improved.
Owner:王志东

Quick face recognition method and device

PendingCN111898408ANarrow your searchReduce the effects of multiple disturbancesCharacter and pattern recognitionComputer visionEngineering
The invention provides a quick face recognition method, apparatus and device, and a readable storage medium. The method comprises the steps of preprocessing and binarizing a to-be-recognized face image to obtain a binary image; performing right lower vertex detection on the binary image to obtain a right lower vertex set; synthesizing a synthesized face area corresponding to each right lower vertex according to a preset value, calculating to obtain an evaluation array according to face area extraction features, calculating a normal form evaluation value of each right lower vertex by adopting aface evaluation normal form, and selecting the right lower vertex with the maximum normal form evaluation value as an actual right lower vertex; and generating a target face area according to the actual lower right vertex and the face width and height, and intercepting a corresponding image from the to-be-recognized face image according to the target face area to perform face recognition. According to the invention, the human face is positioned by combining the right lower vertex detection and the human face evaluation normal form, the search range is reduced, and the influence of various interferences is reduced, so that the human face area can be quickly and accurately positioned for human face recognition.
Owner:GCI SCI & TECH

Network rate segment processing method and apparatus

The embodiment of the invention discloses a network rate segment processing method and apparatus. The method comprises the following steps: selecting a target interface in a network as a demarcation point of a first segment of link and a second segment of link in an end-to-end communication process, wherein the first segment of link is a link from a transmitting end to the target interface, and the second segment of link is a link from the target interface to a receiving end; collecting interaction data passing through the target interface, the transmitting end and the receiving end, and the time of the interaction data to arrive at the target interface; obtaining the delays of the first segment of link and the second segment of link according to the interaction data and the time of the interaction data to arrive at the target interface; and obtaining the rates of the first segment of link and the second segment of link according to the delays. According to the network rate segment processing method and apparatus disclosed by the embodiment of the invention, the data of a single network interface in the network are collected to form a data set to serve as an original data source ofstatistical analysis, and compared with the prior art, the network rate segment processing method and apparatus have the advantages of avoiding the problem that integrated calculation cannot be achieved due to unsynchronized data times of different interfaces, and accurately reducing the network problem search range.
Owner:CHINA MOBILE GRP GUANGDONG CO LTD +1

Handwritten simplified Chinese character input method and system

InactiveCN104461099AInput is easy, fast and accurateEasy, Fast and Accurate MethodOther databases queryingSpecial data processing applicationsHandwritingChinese characters
The invention relates to the Chinese character input technology and provides a handwritten simplified Chinese character input method and system to overcome the defects that in the existing handwriting process, complete character patterns and recognition deviation need to be input, and the input speed is low. The method comprises the steps of receiving handwriting track information generated when handwriting is conducted on a handwriting device, converting the handwriting track information into simplified Chinese characters, accurately retrieving absolutely-correlated Chinese characters according to matching simplified Chinese characters in the system with the matching simplified Chinese characters as retrieving units, and achieving input of the current Chinese characters with reduced strokes and handwritten outlines and the Chinese characters predicted from the current Chinese characters. By means of the handwritten simplified Chinese character input method and system, the Chinese characters with a small number of strokes are input accurately, and the Chinese characters with a large number of strokes can be input accurately just through a part of the smokes, so that the input speed of handwritten Chinese characters is increased efficiently, the input accuracy of the handwritten Chinese characters is improved efficiently, and great significance is achieved.
Owner:邓桂成

E-commerce trial evaluation and recommendation system based on user requirements

The invention relates to an e-commerce trial evaluation and recommendation system based on user requirements. The system is characterized by being composed of a physical store trial terminal, a streetdisplay trial terminal, a marketing management center and a mobile phone terminal, and the physical store trial terminal and the street display trial terminal are respectively composed of a trial area, a keyboard input and display module, a gift area, a data processing and storage module and a wireless transmission module; the marketing management center is composed of a data preprocessor, a datamining PDM server, an FIFO sequence memory, a data exchange server, a marketing management server and a permanent memory. And the marketing management server is connected with a mobile phone terminalof a customer who participates in trial through a mobile communication network. The system solves the problem that the existing e-commerce enterprise has few means of attracting consumers and miningnew customers and is poor in efficiency, and compared with the existing telephone marketing means, the system takes the user requirements as a fundamental starting point, avoids the blindness, improves the return rate, and saves the manpower and material resources.
Owner:济宁市任城区电子商务发展研究院
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products