A dual-mode rapidly-passing type moving target radiation inspection system comprises a radiation source, a collimator (220), sensor units (110, 121, 122, 150, 160), a control module (500), a radiation detector and a radiation imaging device, wherein the sensor units (110, 121, 122, 150, 160) are used for identifying the type of a moving target and monitoring the position of the moving target in an inspection channel; the control module (500) is used for controlling the radiation source to emit rays in a preset working mode on the basis of the type and the position of the moving target; the preset working mode corresponds to the type of the moving target, and the rays emitted by the radiation source in different working modes differ in dosage rate. Also disclosed is a dual-mode rapidly-passing type moving target radiation inspection method. The inspection system and method described above are capable of radiation inspection of the entire moving targets such as vehicles.

Dual-mode rapidly-passing type moving target radiation inspection system and method

An artificial intelligence system for identifying attributes in an image. The system may include a processor in communication with a client device; and a storage medium. The storage medium may store instructions that, when executed, configure the processor to perform operations including: extracting first features; categorizing the first images in a first group or a second group; modifying first metadata associated with each image in the first images to include a binary label; calculating a classification function; classifying a second plurality of images using the classification function; extracting second features from the second images classified in the first group; categorizing the second images in the first group by attribute; calculating an attribute identification function that identifies attributes of the second images; and identifying at least one attribute associated with a client image using the attribute identification function, the client image being received from the client device.

Machine learning artificial intelligence system for identifying vehicles

The invention discloses a quick vehicle inspection method and system based on a length measurement device. The method includes the steps that when a vehicle to be inspected enters an inspection area, a first length and a second length of the vehicle to be inspected are measured; whether the first length is larger than or equal to a first preset length threshold value or not and whether the second length is larger than or equal to a second preset length threshold value or not are judged; if yes, whether a gap part between a first part and a second part of the vehicle to be inspected appears in a beam area or not is determined, wherein the beam area is formed when the quick vehicle inspection system emits radiating ray beams; if yes, a radiating ray beam of a first radiation dose is emitted to the vehicle to be inspected according to the gap part, wherein the vehicle to be inspected and the quick vehicle inspection system move relative to each other. By means of the method, the emission time of the radiating ray beams can be accurately determined, so that safety is improved.

Quick vehicle inspection method and system

The invention provides a rapid detection system. The rapid detection system comprises a detection portal frame, a ray generating device, a first detection light curtain and a controller, wherein the ray generating device is arranged on the detection portal frame, and is used for emitting a detection ray main beam for detecting a vehicle passing the detection portal frame; the first detection light curtain is arranged in a designated area of the driving-out side of the detection portal frame, and is used for judging whether a head of the vehicle leaves from an area of the detection ray main beam or not; the controller is connected to the first detection light curtain and the ray generating device, and is used for controlling the ray generating device to emit detection rays when the detection of the first detection light curtain is interrupted. According to the technical scheme provided by the invention, a rapid detection process of the vehicle is realized; in addition, ray detection and scanning is started after the vehicle head is judged to avoid X rays, so that radiation of the rays to a human body is prevented, and the safety of users is improved while the detection efficiency is improved.

Rapid detection system

An image-guided radiotherapy system adapted to be juxtaposed adjacent a CT scanner comprises a frame having an orifice adapted to permit passage therethrough of a couch on which a patient is positioned, together with a gantry assembly rotatably mounted on the frame in which the gantry assembly comprises a shielding cylinder having an orifice therethrough in alignment with the orifice in the frame. The shielding cylinder has affixed thereto a linac-based treatment head configured to provide radiotherapy, and a beamstop positioned angularly opposite the treatment head to absorb radiation from the treatment head. The shielding cylinder provides sufficient shielding of radiation scattered from the patient and the remainder of the system to not require a conventional vault. In some embodiments an arch may be used instead of a cylinder.

Self-shielded image guided radiation oncology system

A quick vehicle check system comprises a radiation source which produces a first X ray with a first dose and a second X ray with a second dose, wherein the first dose is smaller than the second dose, and the first X ray is used for checking a first part of a checked vehicle and the second X ray is used for checking a second part of the checked vehicle; a first sensor for detecting a set position of the checked vehicle; a second sensor for detecting a passing distance of the checked vehicle; and a control unit coupled with the first sensor and the second sensor, which receives the set position of the checked vehicle from the first sensor and receives the passing distance of the checked vehicle from the second sensor, and when it is determined that the set position of the checked vehicle reaches a scanning region, the control unit informs the radiation source to emit the first X ray; and when the passing distance of the checked vehicle reaches the preset distance, the control unit informs the radiation source to emit the second X ray so as to scan the second part.

Quick vehicle check system and method adopting multi-dose regional scanning

The invention provides a B/S architecture-based radiation image inspection system. The B/S architecture-based radiation image inspection system is characterized in that the B/S architecture-based radiation image inspection system includes a user end which initiates an image operation request, and directly displays an image operation result on the browser of the user end after obtaining a response, an image processing module which queries an image of which the processing is required by the user end according to the request of the user end, performs operation required by the user end on the image, converts a processing result into an image of a specified format and specified quality and returns the image to the browser of the user end for displaying the image, and a Web server which receives requests and authentication of the browser user of the user end and rejects any requests of unauthorized users, and forwards legitimate requests of authorized users to the image processing module, and returns image operation results from the image processing module to the user end. According to the system of the invention, image caching, image distributed image processing and image conversion are adopted, and therefore, the processing performance of the system of the invention is close to the processing performance of original independent software.

B/S architecture-based radiation image inspection system and method

The invention discloses a collimator and an inspection system having the collimator. The collimator comprises: a collimator main body, wherein the collimator main body comprises a first portion and a second portion, a collimating slit is formed between the first portion and the second portion, and the collimating slit is provided with a first end portion and a second end portion in the vertical direction of the collimating slit; and a shielding part, wherein the shielding part can move relative to the collimator main body to make the included angle and the elevation angle of ray beams emitted from the collimating slit change. The invention also discloses the inspection system having the collimator and used for scanning a vehicle, and an inspection method for scanning the vehicle.

Collimator and inspection system

Disclosed is a vehicle identification method and system. The method includes: acquiring appearance information of an inspected vehicle; obtaining external features of the vehicle based on the appearance information; acquiring a transmission image of the vehicle and obtaining internal features of the vehicle from the transmission image; forming descriptions on the vehicle at least based on the external features and the internal features; and determining a vehicle model of the vehicle from a vehicle model databased by utilizing the descriptions. This method merges various types of modality information, especially introducing the transmission image, and combines the internal structure information with the appearance information, so that the present disclosure can identify a vehicle model more practically.

Vehicle identification methods and systems

A radiation protection device is disclosed in the embodiment of the present invention. The radiation protection device is used for a system which is configured to perform safety inspection of a cargo or a vehicle by a ray. The radiation protection device comprising: at least one container, and a radiation protection part disposed within the container. The radiation protection material may comprise at least one of concrete, sandstone, and water, or the radiation protection part may comprise a steel-lead protection wall or a concrete protection wall. With the radiation protection device according to the embodiment of the present invention, after the container is transported to the site, it can be directly put in place to be capable of shielding rays without needing operation or with only simple operation. The amount of on-site work, construction time, and construction cost are low.

Li Ying

Papers

Quick vehicle check system and method adopting multi-dose regional scanning

B/S architecture-based radiation image inspection system and method

Collimator and inspection system

Vehicle identification methods and systems

Radiation protection device