Abstract: Methods and systems of frame based image segmentation are provided. For example, a method for feature object tracking between frames of video data is provided. The method comprises receiving a first frame of video data, extracting a mask feature for each of one or more objects of the first frame, adjusting the first frame by applying each initial mask and corresponding identification to a respective object of the first frame, and outputting the adjusted first frame. The method further comprises tracking the one or more objects in one or more consecutive frames. The tracking comprises extracting a masked feature for each of one or more objects in the consecutive frame, adjusting the consecutive frame by applying each initial mask and corresponding identification for the consecutive frame to the respective object of the one or more objects of the consecutive frame, and outputting the adjusted consecutive frame.

Abstract: This disclosure discloses an isolation device for insolating aerosol exposure, which may be used as an isolation device for a test with a biological aerosol exposure infection risk. The isolation device for insolating aerosol exposure of the present disclosure includes a cabin body; protective half suit arranged in the cabin body; a working table arranged at an accessible horizontal position of the protective half suit in the cabin body; and an air inlet device and an air exhaust device arranged on a side wall of the cabin body. By using the support structure of the cabin body and the rigid frame, flexible assembling and disassembling of the isolation device and easiness in transportation are realized; and based on design mechanisms of negative pressure control, airtight isolation and high-level personnel protection, physical isolation of high-risk operations is realized, operation personnel is effectively protected, and environmental pollution is prevented.

Abstract: The present invention discloses a unit for validating an in situ decontamination effect, including a connecting end. A left end of the connecting end is in communication with any space that needs gas decontamination. A right end of the connecting end is connected to a closed isolation damper. A right end of the closed isolation damper is connected to a hollow decontamination validation chamber. A sealing cover is sleeved over an outer wall of the decontamination validation chamber. A mesh cup is placed inside the decontamination validation chamber, and the mesh cup is used for placing a bioindicator. In addition, the present invention further discloses a device for filtering biologically contaminated air, including a unit for validating an in situ decontamination effect and a hollow box installed with a high efficiency particulate air (HEPA) filter. The unit for validating an in situ decontamination effect is in communication with the hollow box.

Abstract: The present invention discloses a unit for validating an in situ decontamination effect, including a connecting end. A left end of the connecting end is in communication with any space that needs gas decontamination. A right end of the connecting end is connected to a closed isolation damper. A right end of the closed isolation damper is connected to a hollow decontamination validation chamber. A sealing cover is sleeved over an outer wall of the decontamination validation chamber. A mesh cup is placed inside the decontamination validation chamber, and the mesh cup is used for placing a bioindicator. In addition, the present invention further discloses a device for filtering biologically contaminated air, including a unit for validating an in situ decontamination effect and a hollow box installed with a high efficiency particulate air (HEPA) filter. The unit for validating an in situ decontamination effect is in communication with the hollow box.

Abstract: Methods and apparatuses of determining a time for sending information, wherein a method includes obtaining n1 time periods during which an information receiving party most often opens information based on a result of statistics collected in advance for information related behavior of the information receiving party; and determining an information sending time for the information receiving party using the n1 time periods. The methods of present disclosure can predict a proper sending time for an information receiving party according to information related behavior of the information receiving party, which improves the probability that the information receiving party opens the information, and thereby promotes the effect of effectively reading the information.

Abstract: Matching text sets is disclosed, including: extracting a text set from data associated with a current period; storing the text set with a plurality of text sets; extracting a keyword from the text set; determining a weight value associated with the keyword associated with the text set; determining a degree of similarity between the text set and another text set based at least in part on a weight value associated with the keyword associated with the text set and a weight value associated with a keyword associated with the other text set; and determining whether the text set is related to the other text set based at least in part on the determined degree of similarity.