Abstract: Systems and methods for improving accuracy of detecting characteristics of an image in an image detection system. The methods comprise: capturing, by a camera, at least one image or video showing one or more customers in a facility; performing image or video analysis to identify words that define emotions of the one or more customers shown in the at least one image or video; translating the identified words to numerical values in accordance with a pre-defined symbol coding scheme; and combining the numerical values to derive a customer sentiment value for the one or more customers in the at least one image or video.

Abstract: This apparatus and method to inspect objects uses a plurality of pairs of plane mirrors, a lens, a single image sensing means, and illuminating means. The pairs of plane mirrors are arranged in a radially symmetrical pattern about the optical axis of the lens. The object to be viewed (typically a cylindrical object) is placed with its axis coincident with the optical axis of the lens and illuminated by the illumination means. Light travels from the object to the first or outer plane reflective surface of each pair, then to the second or inner plane reflective surface of each pair, and then to the lens that forms an image on the image sensing means. By the symmetry of the arrangement, each pair of reflective surfaces provides a similar image of the object, only from a different direction. These images can provide a complete view around the circumference of the object with overlap between adjacent views.

Abstract: A transmission which requires only a single source to transmit is generated in accordance with a code which is binary (a pulse train having two levels which produces a specific harmonic line spectrum). The pulses are generated by pulse time modulation of the position and duration of pulses in a sweep which extends to the upper end of the spectrum.

Abstract: A seismic array containing a large number of seismic sensors, which may be optical hydrophones, has successive sections, each of which contains a subarray of sensor channels, interconnected by a fiber optic signal transmission line via telemetry modules. Synchronizing signals for initiating successive scans of the sensors in the array and timing the multiplexing of the channels are transmitted along the signal transmission line from the tail end of the line through telemetry modules to the head end. Equipment for receiving, demultiplexing and processing the seismic data is provided at the head end. The array may be towed as a seismic streamer and the head end equipment located topside on the towing vessel. The telemetry modules provide hybrid optical/electrical operation such that array sections including the optical hydrophones and fiber optic links are coupled to each other exclusively by electrical connectors.

Abstract: When a multimode optical fiber is deformed in accordance with an input signal to be sensed, light from lower order core modes is coupled to higher order core modes. A lens assembly is provided which separates the light in the higher order core modes from the light remaining in the lower order core modes. A spatial filter in the lens assembly enables the lens or lenses therein to couple the separated modes to two different output fibers with high efficiency and low coupling loss. The two signals in the output fibers are processed so that the common components which constitute noise are cancelled, while the signal components are additively combined and appear at the system's output so as to provide a highly sensitive, low noise fiber optic sensor system.

Abstract: The system is preferably for use in building construction where concrete floors can be poured in place. The components of the system comprise parallel arranged joists preferably each constructed from three pieces to form an I-beam joist, bracing channels extending orthogonally between adjacent joists and mated at their respective ends with the joists, means for securing and bracing channels in place relative to the joists, and corrugated metal decking extending in separate sections between adjacent joists and over the bracing channels. Concrete is poured over the metal decking and interlocks with the top end of each joist to form a structurally securely supported, poured-in-place concrete floor.