Patent ID: 9641789
Date: 2017-05-02
CPC Classifications: G06K,H04N

Claim:
1. A surveillance apparatus comprising: an analog-to-digital converter configured to convert an analog video signal, of at least one image of a region captured by an optical system, into digital video data of the region; and a main controller comprising at least one processor configured to detect a current motion region from the digital video data of the region, remove a high frequency component of the digital video of the region except the current motion region, and transmit the digital video data of the region, from which the high frequency component is removed, to a target device over a communication network, wherein the main controller is further configured to detect a predetermined target in the current motion region after detecting the current motion region, wherein if the current motion region is detected from the digital video data of the region, and the predetermined target is detected in the current motion region, the main controller performs low pass filtering on the digital video data of the region except the current motion region, to remove the high frequency component of the digital video of the region except the current motion region, wherein if the current motion region is detected from the digital video data of the region, and the predetermined target is not detected in the current motion region, the main controller performs low pass filtering on the digital video data of the region including the current motion region, to remove a high frequency component of the digital video data of the region including the current motion region, and wherein the low-pass filtering is variably determined according to a number of motions previously occurred in the region except the current motion region.