| 主权项 |
1. An apparatus for video surveillance system, the apparatus comprising:
at least one camera sensor, said at least one camera sensor is configured to capture 30 frames-per-second at a minimum of high definition resolution; at least one image signal processor coupled to said at least one camera sensor for performing image signal processing functions including but not limited to auto white balance, auto gain, wide-angle lens barrel distortion reduction, and lens defect compensation; a motion adaptive spatial and temporal filtering unit that is coupled to output of said at least one image signal processor for preprocessing of video data; at least one video compression unit according to H.264 standard that is coupled to output of said motion adaptive spatial and temporal filtering unit, said at least one video compression unit is configured to compress 30 frames-per-second at a minimum of high definition resolution in variable bit rate; a processor coupled to at least one video compression unit to store compressed data on a removable non-volatile semiconductor storage media in a continuous record loop in a circular queue, said circular queue is configured for storing multiple days of storage of surveillance data, in accordance with size of said removable non-volatile semiconductor storage media, before oldest data is overwritten by newly recorded video; an encryption unit coupled to said processor, wherein said stored compressed data on said removable non-volatile semiconductor storage media is configured to be encrypted to allow only people with a security key to access said stored surveillance data; an internet interface unit coupled to said processor using an interface including but not limited to 802.11 wireless interface, 3G data interface, 4G data interface, or a power-line data interface; a transrating unit coupled to said removable non-volatile semiconductor storage media using said Internet interface unit for transmitting said stored surveillance data at a different constant bit rate (CBR) in accordance with transmit channel and destination capabilities; wherein said surveillance data from said circular queue for a time of interest from a start time to an end time is sent by said processor upon request by a remote device communicating to said Internet interface unit using a H.264 compressed and encrypted audio-video data file format; wherein, in case of a trigger event, data enveloping said trigger event is saved and transrated into a lower constant bit rate before encryption and transmittal to one or more predefined internet destinations; wherein, upon request to transmit a time range of said start time to a stop time, requested data is transmitted in a data file format in non-real-time using TCP/IP protocol, said data file is generated by decompressing video, performing temporal and spatial scaling, and compressing video at a different data rate in accordance with request and capabilities of a receiving device; wherein all elements of the apparatus are integrated into a single compact unit: whereby the apparatus is configured to save evidentiary data locally in said removable non-volatile storage media; whereby an intruder is prevented from removing said evidentiary data that is captured and stored on multiple distributed units of the apparatus which are hard to reach or remove; and image processing and storage of surveillance data collocated at the apparatus without having to stream data continuously over cabling or wireless in real-time, thereby power consumption and local bandwidth of transmitted data are significantly reduced because continuous streaming of data is not required; only said data enveloping said trigger event or a requested time zone is transmitted upon request by said remote device. |
