Abstract:
A pedestrian detection system and method includes: dividing an image to a plurality of granules, and counting magnitude difference value of each granule in diagonal orientation to obtain features of HOGG. And the HOGG and the HOG captured can work together to improve the detection rate and reduce the false alarm rate, which is the ultimate goal of the vision based pedestrian detection.
Abstract:
A pedestrian detector includes an image-taking mechanism and an image analyzer. The image-taking mechanism is provided on a vehicle and used to take an image in front of the vehicle. The image analyzer is connected to the image-taking mechanism and used to receive the image from the image-taking mechanism and analyze the image to determine whether the image conforms to a pedestrian to determine whether there is a pedestrian in front of the vehicle.
Abstract:
A passenger detector includes an image taker, an image processor and a storage unit. The image taker is used for taking an image of a passenger sitting on a seat. The image processor is connected to the image taker. The image processor is used to learn and identify features of the image and possibilities of states of the passenger and integrate the possibilities to select the most likely state of the passenger. The storage unit is connected to the image processor. The storage unit is used to store image data before and after taking the image.
Abstract:
A passenger detector includes an image taker, an image processor and a storage unit. The image taker is used for taking an image of a passenger sitting on a seat. The image processor is connected to the image taker. The image processor is used to learn and identify features of the image and possibilities of states of the passenger and integrate the possibilities to select the most likely state of the passenger. The storage unit is connected to the image processor. The storage unit is used to store image data before and after taking the image.
Abstract:
A processing method for radar signal with dual pulse repetition frequency, comprising: generating a first transmission signal and a second transmission signal, and perform a transmission process; reflecting a first echo signal and a second echo signal from an object, and converting the first transmission signal and the second transmission signal to a frequency domain information by using 2D (Two Dimension) fast Fourier transform (FFT); and filtering noise in the frequency domain information, and performing a calculation program by using a algorithm to obtain Doppler shift of the object. Thereby, the processing method of the present invention can overcome the bad operation ability of the lower hardware and advance the radar target detection speed restrictions.
Abstract:
The present invention provides an apparatus for fetching optical images. Images from multiple channels are obtained. A device is used to automatically switch the images. The switching is based on time-sharing multiplexing (TSM). Thus, the images are formed on another device. The images are then integrated and displayed to be used in an optical vehicle safety assistant system.
Abstract:
The invention discloses a leaky-wave dual-antenna system comprising a transmitting antenna array and a receiving antenna array. The transmitting antenna array comprises plural first microstrips and plural corresponding first differential circuits, and each of the first differential circuit matches the corresponding first microstrip by a L-type matching network; the receiving antenna array comprises plural second microstrips and plural corresponding second differential circuits, and each of the second differential circuit matches the corresponding second microstrip by a L-type matching network. A first end and a second end of each of the first differential circuits are respectively connected to the corresponding first microstrip; a third end and a fourth end of each of the second differential circuits are respectively connected to the corresponding second microstrip.