Abstract: Provided are an image processing method, an image matching method, a device, and a storage medium. The image processing method includes: obtaining an image feature of an input image; determining a plurality of local image features of the image feature; determining a plurality of local feature vectors corresponding to the plurality of local image features respectively; determining a hash code of the input image based on the plurality of local feature vectors.

Abstract: A method for training a feature quantization model includes: obtaining a plurality of source data domains; obtaining feature information and labeling information of each of the plurality of source data domains; decomposing the feature information of each of the plurality of source data domains, so as to obtain common feature information and domain-specific feature information of the plurality of source data domains, the common feature information being feature information common to the plurality of source data domains; and training a feature quantization model according to the common feature information of all the source data domains, and domain-specific feature information and the labeling information of each of the plurality of source data domains, so as to obtain a common feature quantization model.

Abstract: Provided are an image processing method, an image matching method, a device, and a storage medium. The image processing method includes: obtaining an image feature of an input image; determining a plurality of local image features of the image feature; determining a plurality of local feature vectors corresponding to the plurality of local image features respectively; determining a hash code of the input image based on the plurality of local feature vectors.

Abstract: The present disclosure provides an electric field component detection device and method, and a space electric field detection system. The electric field component detection device comprises a first electric field sensor and a second electric field sensor arranged symmetrically with respect to a driving rod; a differentiator, configured to perform differential processing on induced currents generated by the first electric field sensor and the second electric field sensor, respectively; a first support member and a second support member disposed at two ends of the driving rod, respectively, wherein each support member includes a bracket and an elastic portion disposed on the bracket, one end of the driving rod is connected with the elastic portion of the first support member, and the other end of the driving rod is connected with the elastic portion of the second support member.

Abstract: The present disclosure provides an electric field component detection device and method, and a space electric field detection system. The electric field component detection device comprises a first electric field sensor and a second electric field sensor arranged symmetrically with respect to a driving rod; a differentiator, configured to perform differential processing on induced currents generated by the first electric field sensor and the second electric field sensor, respectively; a first support member and a second support member disposed at two ends of the driving rod, respectively, wherein each support member includes a bracket and an elastic portion disposed on the bracket, one end of the driving rod is connected with the elastic portion of the first support member, and the other end of the driving rod is connected with the elastic portion of the second support member.