Abstract:
PURPOSE: An apparatus and method for tracking a moving object with shadow removal module are provided to distinguish a real object from shadows. CONSTITUTION: A video cassette recorder(100) of an image tracking device(10) transmits an image data to a remote control server in real time. An object tracking module(200) periodically receives time information and location information from a control server in a remote place. The object tracking module calculates the direction and the length of the object shadow. The object tracking module extracts a clear object image in which the shadow is removed.
Abstract:
A device for transmitting a digital broadcast signal and a receiving for receiving a digital broadcast signal using ZCD(Zero Correlation Duration) and LCD(Low Correlation Duration) spreading codes is provided to improve the performance of a system by deriving correlation characteristics through a matching filter of a receiving end. Digital broadcast data is modulated according to ATSC(Advanced Television Systems Committee) standards(S100). ZCD code and LCD code having characteristics of a continuous zero correlation duration are inserted to the modulated digital broadcast signal(S200). The generated broadcast signal is transmitted(S300). A signal watermarked with ZCD code and LCD code maintaining continuous zero correlation duration characteristics is received from multiple transmitters using the same frequency(S400). Correlation characteristics are derived from the received signal by using a matching filter and a transmitter is recognized according to the result of the correlation characteristics driving(S500). A broadcast signal received from the recognized transmitter is processed(S600).