Abstract: A method for measuring objects in a digestive tract based on an imaging system is provided. The imaging system captures a detection image in the measurement stage. The depth distance zi from a target point P? to a board is calculated, a correction factor is obtained according to the predicted brightness g?1(zi) of a reference point P in the detection image. The depth image z(x, y) from the actual position of each pixel to the board is calibrated by the correction factor. The scale r of each pixel is calculated according to the depth image z(x, y). The actual two-dimensional coordinates Si? of each pixel are calculated by the scale r, and the actual three-dimensional coordinates (Si?, z(x, y)) of each pixel are obtained. The distance between any two pixels in the detection image or the area within any range are calculated.

Abstract: The present invention provides a gastrointestinal sampling capsule includes an enclosure, a sampling port on the enclosure and a sampling module connected to the enclosure. The sampling port includes a plurality of sampling holes, and the sampling module includes a sample chamber and a sampling trigger unit which controls a connection or disconnection between the sampling port and the sample chamber to turn on sampling or turn off sampling. The gastrointestinal sampling capsule further includes a connecting passage arranged between the sample chamber and the sampling port, wherein an inlet of the connecting passage corresponds to the sampling port and an outlet of the connecting passage is connected to the sample chamber. A gap is provided between the plurality of sampling holes and the inlet of the connecting passage, through which the plurality of sampling holes are connected to the connecting passage.

Abstract: The present invention provides a sampling capsule and a sampling capsule system. The sampling capsule includes an enclosure, a partition wall arranged in the enclosure, and a sample chamber enclosed by the partition wall and the enclosure at a first side of the partition wall. The sampling capsule further includes an inner sample inlet on the partition wall, an outer sample inlet, a sampling tube and a switch assembly. The outer sample inlet is on the enclosure at a second side of the partition wall. The sampling tube connects the outer sample inlet and the inner sample inlet, and the switch assembly clamps or unclamps a portion of the sampling tube. When sampling is needed, the switch assembly unclamps the sampling tube to sample liquid. When sampling ends, the switch assembly tightly clamps the sampling tube to prevent sample liquid leak or contamination.

Abstract: The present disclosure discloses an inspection device, an inspection method and an inspection system. The device comprises a distributed ray source comprising multiple source points; a light source collimator configured to converge the rays generated by the distributed ray source to form an inverted fan-shaped ray beam; a scatter collimator configured to only allow rays scattered at one or more particular scattering angles which are generated by the rays from the light source collimator interacting with inspected objects to pass; at least one detector each comprising multiple detection units which have an energy resolution capability and are substantially arranged in a cylindrical surface to receive the scattered rays passing through the scatter collimator; and a processing apparatus configured to calculate energy spectrum information of the scattered rays from the inspected objects based on a signal output by the detectors.

Abstract: The present disclosure discloses an inspection device, an inspection method and an inspection system. The device comprises a distributed ray source comprising multiple source points; a light source collimator configured to converge the rays generated by the distributed ray source to form an inverted fan-shaped ray beam; a scatter collimator configured to only allow rays scattered at one or more particular scattering angles which are generated by the rays from the light source collimator interacting with inspected objects to pass; at least one detector each comprising multiple detection units which have an energy resolution capability and are substantially arranged in a cylindrical surface to receive the scattered rays passing through the scatter collimator; and a processing apparatus configured to calculate energy spectrum information of the scattered rays from the inspected objects based on a signal output by the detectors.