49 results about "Vision based systems" patented technology

A method of detecting a dynamic weather event includes the steps of: (a) receiving video images of a scene from a camera; (b) dividing each of the video images into multiple regions, in which a region is defined by a range of distances from the camera to objects in the scene; (c) selecting a region; and (d) segmenting the selected region into a plurality of three-dimensional (3D) image patches, in which each 3D image patch includes a time-sequence of T patches, with each patch comprised of N×M pixels, wherein N, M and T are integer numbers. The method also includes the following steps: measuring an image intensity level in each of the 3D image patches; masking 3D image patches containing image intensity levels that are above a first threshold level, or below a second threshold level; and extracting features in each 3D image patch that is not discarded by the masking step. Based on the extracted features, the method makes a binary decision on detecting a dynamic weather event.

The invention provides a chute system (C1,C2,C3) for a sorting system arranged for transporting objects, e.g. for use for discharging luggage from a conveyor system. The chute system has one or more chute sections with an inlet (IL) in one end and an outlet (OL) in the opposite end. Displacement means, e.g. a pneumatic actuator, is arranged to adjust an angle of inclination of the one or more chute sections (C1,C2,C3) by displacing the chute section (C1,C2,C3) in a motion comprising pivoting around a pivot point positioned downstream of the inlet (IL). E.G. the pivot point can be positioned at the outlet, e.g. by means of a hinge. The adjustment of the angle of inclination may be controlled by a processor in response to various position and / or speed sensors and / or information about incoming objects from a vision based system or from the associated sorting system, e.g. identification of poly wrapped objects. The angle of inclination can be increased in case an object stops on the chute section, or the angle of inclination can be decreased in case an object moves too fast, even if a simple gravity chute is used. A cascade of two or more chute sections (C1,C2,C3) with adjustable angles of inclination can be used to control batches of objects and to control back pressure of objects on the chute.

Vision based system and method for detecting a breach of security in a monitored area. One or more sequences of events are stored in the system. Each sequence of events includes a different combination of events and an order in which the events have occurred. An action is associated with each sequence of events such as triggering an alarm, generating an audible sound, calling 911 etc. when the events detected by the system match a given sequence the action associated with that sequence is performed. The system receives an image stream of the area and detects the events occurring in the images including the detection of a human body, its size and location within the monitored area. The system may be activated at all time without requiring people in the monitored area to change their normal behavior.