Patents by Inventor Yongheng Shang

Yongheng Shang 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).

  • Publication number: 20240331165
    Abstract: A cross-domain remote sensing image semantic segmentation method based on iterative intra-domain adaptation and self-training, includes training source-target inter-domain domain adaptation models, generating target domain category segmentation probabilities and pseudo labels, sorting target domain image segmentation probability credibility scores, training target intra-domain iterative domain adaptation models, and generating target domain segmentation results.
    Type: Application
    Filed: April 28, 2022
    Publication date: October 3, 2024
    Inventors: JIANWEI YIN, YUXIANG CAI, YINGCHUN YANG, YONGHENG SHANG, ZHENQIAN CHEN, ZHENGWEI SHEN
  • Patent number: 11741572
    Abstract: The present invention discloses a method and system for directed transfer of cross-domain data based on high-resolution remote sensing images. In the method of the present invention, first, an objective loss function which combines an image translation loss and a model adaptive loss of an image translation network model is established, thus overcoming the technical shortcoming that an existing data translation technique fails to take a specific task into full consideration and ignores a negative impact of data translation on the specific task. Further, a trained image translation network model is fine-tuned based on sample data, so that the image translation network model keeps translation towards the effect desired by the target model, thus avoiding over-interpretation or over-simplification during directed transfer of cross-domain data and improving accuracy of directed transfer of the cross-domain data based on the high-resolution remote sensing images.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: August 29, 2023
    Assignee: Zhejiang University
    Inventors: Jianwei Yin, Ge Su, Yongheng Shang, Zhengwei Shen
  • Patent number: 11734390
    Abstract: The present disclosure discloses an unsupervised domain adaptation method, a device, a system and a storage medium of semantic segmentation based on uniform clustering; first, a prototype-based source domain uniform clustering loss and an empirical prototype-based target domain uniform clustering loss are established, to reduce intra-class differences of pixels responding to the same category; meanwhile, the pixels with similar structures but different classes are driven away from each other, wherein they tend to be evenly distributed, increasing the inter-class distance and overcoming the problem that the category boundaries are unclear during the domain adaptation process; next, the prototype-based source domain uniform clustering loss and the empirical prototype-based target domain uniform clustering loss are integrated into an adversarial training framework, which reduces the domain difference between the source domain and the target domain, thus improving the accuracy of semantic segmentation.
    Type: Grant
    Filed: August 22, 2021
    Date of Patent: August 22, 2023
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Jianwei Yin, Ge Su, Yongheng Shang, Yingchun Yang, Shuiguang Deng
  • Publication number: 20220383052
    Abstract: The present disclosure discloses an unsupervised domain adaptation method, a device, a system and a storage medium of semantic segmentation based on uniform clustering; first, a prototype-based source domain uniform clustering loss and an empirical prototype-based target domain uniform clustering loss are established, to reduce intra-class differences of pixels responding to the same category; meanwhile, the pixels with similar structures but different classes are driven away from each other, wherein they tend to be evenly distributed, increasing the inter-class distance and overcoming the problem that the category boundaries are unclear during the domain adaptation process; next, the prototype-based source domain uniform clustering loss and the empirical prototype-based target domain uniform clustering loss are integrated into an adversarial training framework, which reduces the domain difference between the source domain and the target domain, thus improving the accuracy of semantic segmentation.
    Type: Application
    Filed: August 22, 2021
    Publication date: December 1, 2022
    Inventors: Jianwei YIN, Ge SU, Yongheng SHANG, Yingchun YANG, Shuiguang DENG
  • Publication number: 20220028038
    Abstract: The present invention discloses a method and system for directed transfer of cross-domain data based on high-resolution remote sensing images. In the method of the present invention, first, an objective loss function which combines an image translation loss and a model adaptive loss of an image translation network model is established, thus overcoming the technical shortcoming that an existing data translation technique fails to take a specific task into full consideration and ignores a negative impact of data translation on the specific task. Further, a trained image translation network model is fine-tuned based on sample data, so that the image translation network model keeps translation towards the effect desired by the target model, thus avoiding over-interpretation or over-simplification during directed transfer of cross-domain data and improving accuracy of directed transfer of the cross-domain data based on the high-resolution remote sensing images.
    Type: Application
    Filed: September 3, 2020
    Publication date: January 27, 2022
    Applicant: Zhejiang University
    Inventors: Jianwei Yin, Ge Su, Yongheng Shang, Zhengwei Shen
  • Patent number: 11189034
    Abstract: A semantic segmentation method and system for a high-resolution remote sensing image based on random blocks. In the semantic segmentation method, the high-resolution remote sensing image is divided into random blocks, and semantic segmentation is performed for each individual random block separately, thus avoiding overflow of GPU memory during semantic segmentation of the high-resolution remote sensing image. In addition, feature data in random blocks neighboring each random block incorporated into the process of semantic segmentation, overcoming the technical shortcoming that the existing segmentation method for the remote sensing image weakens the correlation within the image. Moreover, in the semantic segmentation method, semantic segmentation is separately performed on mono-spectral feature data in each band of the high-resolution remote sensing image, thus enhancing the accuracy of sematic segmentation of the high-resolution remote sensing image.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: November 30, 2021
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Jianwei Yin, Ge Su, Yongheng Shang, Zhengwei Shen