Abstract: An image feature visualization method and apparatus, and an electronic device during model training, inputs the real training data with positive samples into a mapping generator to obtain fictitious training data with negative samples. The mapping generator includes a mapping module configured to learn a key feature map that distinguishes the real training data with positive samples/negative samples, and the fictitious training data with negative samples is generated based on the real training data with positive samples and the key feature map. The training data with negative samples is input into a discriminator to obtain a discrimination result. An optimizer optimizes the mapping generator and the discriminator until training is completed. During model application, a target image that is to be processed is input into the mapping generator, and the mapper in the mapping generator extracts features of the target image.

Abstract: The present invention discloses a device and a method for colorless optical switching, where the device includes: a demultiplexer, configured to demultiplex the input multi-wavelength light into multiple beams of light with single wavelength; a first optical cross unit, configured to output the received multiple beams of light with single wavelength through target ports to an optical switch array; the optical switch array, configured to drop the light that needs to be dropped from multiple beams of light with single wavelength, receive the light added by the local node, and output the light that needs to pass in the multiple beams of light with single wavelength and the light added by the local node; and a combiner, configured to combine the light output by the optical switch array. The optical switch device and method provided in the embodiments of the present invention feature colorlessness, low insertion loss, and low costs.

Abstract: A light mark, a method and a device for light mark modulation and demodulation are disclosed. The modulation method includes: generating a mark with periodically alternating frequency and interval; and modulating the mark signal onto an optical signal. In the present disclosure, the mark with periodically alternating frequency and interval is adapted to distinguish different wavelengths by using different frequencies, and distinguish the same wavelength from different nodes by using the same frequency but different intervals. Therefore, numerous available marks are obtained with a small number of frequencies, and unique marks for all wavelengths in a network only require a number of frequencies equal to the number of the wavelengths in the network. Moreover, even if a wavelength conflict occurs, the wavelength conflict can be determined according to detected marks.

Abstract: The present invention discloses a device and a method for colorless optical switching, where the device includes: a demultiplexer, configured to demultiplex the input multi-wavelength light into multiple beams of light with single wavelength; a first optical cross unit, configured to output the received multiple beams of light with single wavelength through target ports to an optical switch array; the optical switch array, configured to drop the light that needs to be dropped from multiple beams of light with single wavelength, receive the light added by the local node, and output the light that needs to pass in the multiple beams of light with single wavelength and the light added by the local node; and a combiner, configured to combine the light output by the optical switch array. The optical switch device and method provided in the embodiments of the present invention feature colorlessness, low insertion loss, and low costs.

Abstract: A method and a device for optical switching are disclosed. The method includes: receiving input optical signals; switching the input optical signals to an optical grouping unit when the input optical signals need to be grouped, and then receiving grouped optical signals; and switching the grouped optical signals to corresponding output ports for outputting. The device includes an optical switching unit and an optical grouping unit. A part of output ports of the optical switching unit are connected to input ports of the optical grouping unit, and output ports of the optical grouping unit are connected to input ports of the optical switching unit. The optical switching unit is configured to control transmission paths of the optical signals, and the optical grouping unit is configured to group the optical signals.

Abstract: An optical signal identifying method and apparatus are provided. The optical signal identifying method includes: assigning signal IDs with different frequencies to optical signals with different wavelengths, where the signal IDs are controlled in an amplitude-modulation manner according to a binary data sequence; and distinguishing the optical signals with different wavelengths by using different signal IDs. A signal ID detecting method and apparatus, and an optical signal identifying and detecting system are further provided. The optical signals with different wavelengths are distinguished by using the signal IDs controlled in an amplitude-modulation manner according to the binary data sequence, and optical channels of the optical signals with different wavelengths are detected and information such as the optical power is obtained by detecting the signal IDs.

Abstract: A method, a system, and a device for setting up a wavelength connection are disclosed herein. The method includes obtaining a wavelength path from a source network node to a destination network node and wavelength impairment compensation information of the wavelength path; and setting up the wavelength connection from the source network node to the destination network node according to the wavelength path and performing impairment compensation for wavelength signals in an interface of each network node on the wavelength path according to the wavelength impairment compensation information during setting up the wavelength connection. The device disclosed herein includes a path calculation server, a network node device, and a control server. The system disclosed herein is a network communication system. The embodiments of the present disclosure set up an available wavelength connection efficiently, simply and quickly.

Abstract: A light mark, a method and a device for light mark modulation and demodulation are disclosed. The modulation method includes: generating a mark with periodically alternating frequency and interval; and modulating the mark signal onto an optical signal. In the present disclosure, the mark with periodically alternating frequency and interval is adapted to distinguish different wavelengths by using different frequencies, and distinguish the same wavelength from different nodes by using the same frequency but different intervals. Therefore, numerous available marks are obtained with a small number of frequencies, and unique marks for all wavelengths in a network only require a number of frequencies equal to the number of the wavelengths in the network. Moreover, even if a wavelength conflict occurs, the wavelength conflict can be determined according to detected marks.

Abstract: A telecommunications network component comprising: a processor configured to implement a method comprising: receiving an optical signal comprising at least one identification signal, the identification signal comprising a series of frequency portions that alternate in turn according to a frequency interval defined for each of the series of frequency portions, partitioning the identification signal by way of a plurality of windows, performing a Fast Fourier Transform (FFT) on each of the plurality of windows, determining which of the plurality of windows comprise a relative minimum number of frequency components, and detecting an optical channel based on results of the FFT performed on each of the plurality of windows that comprise the relative minimum number of frequency components.

Abstract: A telecommunications network component comprising: a processor configured to implement a method comprising: receiving an optical signal comprising at least one identification signal, the identification signal comprising a series of frequency portions that alternate in turn according to a frequency interval defined for each of the series of frequency portions, partitioning the identification signal by way of a plurality of windows, performing a Fast Fourier Transform (FFT) on each of the plurality of windows, determining which of the plurality of windows comprise a relative minimum number of frequency components, and detecting an optical channel based on results of the FFT performed on each of the plurality of windows that comprise the relative minimum number of frequency components.