Patents by Inventor Huanhuan Zhang

Huanhuan Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11238301
    Abstract: A computer-implemented method of detecting a foreign object on a background object in an image is provided. The computer-implemented method includes extracting image features of the image based on image characteristics of the background object and a suspected foreign object; detecting a salient region in the image based on a human visual attention model; generating a salient region mask based on detection of the salient region; obtaining the image features in a region surrounded by the salient region mask; perforating feature combination and feature vector length normalization on the image features of the region surrounded by the salient region mask to generate normalized feature vectors; and identifying the suspected foreign object using an image classifier, wherein the image classifier uses the normalized feature vectors as input for identifying the suspected foreign object.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: February 1, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Huanhuan Zhang, Jingtao Xu, Xiaojun Tang, Hui Li
  • Publication number: 20210334574
    Abstract: A commodity detection terminal is disclosed, the commodity detection terminal includes: an image segmentation unit configured to obtain position information of each grid of a goods shelf in an image of the goods shelf based on a first image, which is an image of the goods shelf not placed with commodities; a detector unit configured to obtain a current grid where each commodity is located and a current quantity of each commodity based on a second image, which is a current image of the goods shelf placed with commodities; and a determination unit configured to compare the current grid and the current quantity with a preset grid and a preset quantity of the each commodity, so as to determine whether a status of each commodity satisfies a preset condition. A commodity detection method, an intelligent goods shelf system, a computer device, and a readable medium are also disclosed.
    Type: Application
    Filed: April 3, 2019
    Publication date: October 28, 2021
    Inventors: Huanhuan ZHANG, Tong LIU, Yifei ZHANG, Xiaojun TANG
  • Publication number: 20210256291
    Abstract: A computer-implemented method of detecting a foreign object on a background object in an image is provided. The computer-implemented method includes extracting image features of the image based on image characteristics of the background object and a suspected foreign object; detecting a salient region in the image based on a human visual attention model; generating a salient region mask based on detection of the salient region; obtaining the image features in a region surrounded by the salient region mask; perforating feature combination and feature vector length normalization on the image features of the region surrounded by the salient region mask to generate normalized feature vectors; and identifying the suspected foreign object using an image classifier, wherein the image classifier uses the normalized feature vectors as input for identifying the suspected foreign object.
    Type: Application
    Filed: May 9, 2019
    Publication date: August 19, 2021
    Applicant: BOE Technology Group Co., Ltd.
    Inventors: Huanhuan Zhang, Jingtao Xu, Xiaojun Tang, Hui Li
  • Publication number: 20210150729
    Abstract: The present disclosure provides a line segment detection method, apparatus, device, and a computer-readable storage medium. Said method includes: extracting image features of an image to be processed, the image features including an image gradient angle and an image gradient amplitude; determining a plurality of seed points based on the extracted image features; for each seed point of the plurality of seed points, determining a current connected region of respective seed point according to a region growth rule, wherein the region growth rule needs to satisfy both a gradient amplitude growth rule and a gradient angle growth rule simultaneously; and performing line segment fitting on line segments within the current connected region of respective seed point.
    Type: Application
    Filed: August 1, 2019
    Publication date: May 20, 2021
    Inventors: Huanhuan ZHANG, Tong LIU, Xiaojun TANG, Yifei ZHANG, Zhiguo ZHANG
  • Publication number: 20210089753
    Abstract: The present invention provides an age recognition method, a computer program and an electronic device. The method comprises: acquiring a face image to be recognized; extracting face characteristic points in the face image to be recognized, and characteristic point coordinates of the face characteristic points in the face image to be recognized; extracting face global features from the face image to be recognized according to the characteristic point coordinates; extracting face local features from the face image to be recognized according to the face characteristic points; and determining an age recognition result corresponding to the face image to be recognized according to the face global features, the face local features and an age recognition model obtained by pre-training.
    Type: Application
    Filed: March 11, 2020
    Publication date: March 25, 2021
    Inventor: Huanhuan Zhang
  • Publication number: 20210064851
    Abstract: The present disclosure provides an age recognition method, a non-transitory computer-readable storage medium, and an electronic device. The method includes extracting feature points of a face in an image, preprocessing the image to extract global features of the face, extracting local features of the face based on the feature points, determining an age feature of the face according to the global features and the local features, and inputting the age feature into a pre-trained age recognition model to obtain an age value corresponding to the face in the image.
    Type: Application
    Filed: April 6, 2020
    Publication date: March 4, 2021
    Inventor: Huanhuan ZHANG
  • Publication number: 20200320736
    Abstract: The present disclosure provides an image processing method, device and apparatus, and a computer-readable storage medium. The image processing method includes: obtaining an image and detecting multiple targets in the image; obtaining categories of multiple detected targets and first parameters of a detection frame corresponding to each detected target, and ranking all detected targets according to the first parameters in a descending order to obtain a dataset; obtaining a target with a highest first parameter in the dataset as a first detected target, and detecting whether the first parameter of a first detection frame corresponding to the first detected target satisfies a preset category condition of a category to which the first detected target belongs; detecting whether the first detection frame corresponding to the first detected target overlaps with a detection frame corresponding to a respective one of the plurality of detected targets except the first detected target.
    Type: Application
    Filed: June 18, 2020
    Publication date: October 8, 2020
    Inventors: Huanhuan ZHANG, Tong LIU, Yifei ZHANG, Xiaojun TANG
  • Patent number: 9535047
    Abstract: A method of providing an indication as to the amount of milk remaining in a breast during lactation based on a determined fat content of milk that has been expressed from said breast is disclosed. The method of determining said fat content comprises measuring an optical characteristic of milk following expression and by comparing said measured optical characteristic with data representing a corresponding optical characteristic of a sample of milk having a known fat content to determine the fat content of said expressed milk which is indicative of the amount of milk remaining in the breast.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: January 3, 2017
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Xin Chen, Xiaoxin Wang, Renjun Yu, Huanhuan Zhang
  • Publication number: 20160135379
    Abstract: The present invention is a method of shoot apical meristem transformation for dicot plant via sufficient and micro wounding (SMW). The technical process includes: germinate the seeds in Petri dish or in the nutrient matrix which can be transplanted with the seedling; expose the shoot apical meristem by removing one cotyledon away; make sufficient and micro wounding transformation treatment in vivo to the apical meristem by stabbing and brushing for 2-3 times using the SMW brush having 100-5000 bristles which is 4-20 ?m in diameter for each one and 0.
    Type: Application
    Filed: September 14, 2012
    Publication date: May 19, 2016
    Inventors: Haibo Wang, Mengyu Lv, Fushuang Dong, Yanmin Zhang, Zhiheng Ren, Fan Yang, Guozhong Sun, Xian Xu, Xueping Shi, Huanhuan Zhang, He Zhao, Jianfang Chai, Yiping Gao, Yongwei Liu, Jinyong Zhu, Qiufen Han, Qiang Zhang, Huijie Ma, Zhanwu Wang, Junfeng Guan
  • Publication number: 20150344897
    Abstract: The present invention is a method of shoot apical meristem transformation for monocot plant via sufficient and micro wounding (SMW). The technical process includes: expose the apical meristem by removing the coleoptile away when the shoot grows to 0.2-2 cm after 1-2 days of seed germination; make sufficient and micro wounding transformation to the apical meristem by stabbing and brushing for 2-3 times using the SMW brush having 100-5000 bristles which is 4-20 ?m in diameter for each one and 0.5-3 mm in exposed length, and dipped with the Agrobacterium tumefaciens containing binary vector harboring exogenous genes; develop the treated meristems directly to normal plants after co-cultivation; promote the plants to develop big spikes and set more seeds; harvest the seeds of T0 plants separately; detect and identify the transformation results in T1 generation which is bred from each individual T0 plant.
    Type: Application
    Filed: September 14, 2012
    Publication date: December 3, 2015
    Applicant: HEBEI ACADEMY OF AGRICULTURE AND FORESTRY SCIENCES, INSTITUTE OF GENETICS AND PHYSIOLOGY
    Inventors: Haibo Wang, Fushuang Dong, Mengyu Lv, Yanmin Zhang, Zhiheng Ren, Fan Yang, Xinchao Liang, Wenbo Zuo, Xueping Shi, Huanhuan Zhang, Yiping Gao, He Zhao, Xian Xu, Guozhong Sun, Jianfang Chai, Yongwei Liu, Jinyong Zhu, Qiufen Han, Qiang Zhang, Huijie Ma, Zhanwu Wang, Junfeng Guan
  • Publication number: 20150051458
    Abstract: A method of providing an indication as to the amount of milk remaining in a breast during lactation based on a determined fat content of milk that has been expressed from said breast is disclosed. The method of determining said fat content comprises measuring an optical characteristic of milk following expression and by comparing said measured optical characteristic with data representing a corresponding optical characteristic of a sample of milk having a known fat content to determine the fat content of said expressed milk which is indicative of the amount of milk remaining in the breast.
    Type: Application
    Filed: December 14, 2012
    Publication date: February 19, 2015
    Inventors: Xin Chen, Xiaoxin Wang, Renjun Yu, Huanhuan Zhang
  • Patent number: 8817125
    Abstract: A method and system for analyzing an object is provided in the present invention. The system comprises: a background arranged behind an object, wherein the color of the background is allowed to be selected from a set of colors; a first unit for setting a given color for the background so that the given color is different from the color of the object; a second unit for taking a picture including the object and the background; and a third unit for detecting at least one feature relating to the object according to the picture taken by said second unit. In the system, the color of the background is allowed to be set so as to be different from the color of the object. In this way, it is easy to distinguish the object part from the background part in the taken picture. This results in stable recognition for different objects, especially objects of different colors.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: August 26, 2014
    Assignee: Koninklijke Philips N.V.
    Inventors: Rong Song, Jin Wang, Yunqiang Liu, Huanhuan Zhang
  • Publication number: 20120092519
    Abstract: A method and system for analyzing an object is provided in the present invention. The system comprises: a background arranged behind an object, wherein the color of the background is allowed to be selected from a set of colors; a first unit for setting a given color for the background so that the given color is different from the color of the object; a second unit for taking a picture including the object and the background; and a third unit for detecting at least one feature relating to the object according to the picture taken by said second unit. In the system, the color of the background is allowed to be set so as to be different from the color of the object. In this way, it is easy to distinguish the object part from the background part in the taken picture. This results in stable recognition for different objects, especially objects of different colors.
    Type: Application
    Filed: June 23, 2010
    Publication date: April 19, 2012
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Rong Song, Jin Wang, Yunqiang Liu, Huanhuan Zhang
  • Publication number: 20110273552
    Abstract: The present invention provides a complete solution for accessing an exercise or training program quickly and easily (e.g. with just one or a few button pushes on a remote control) at anytime while watching TV.
    Type: Application
    Filed: January 18, 2010
    Publication date: November 10, 2011
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Jin Wang, Yunqiang Liu, Huanhuan Zhang