Abstract: A video coding method and apparatus select an optimal method from among various chrominance space conversion methods for the current chroma block's original signals, predictors, or residual signals, based on correlations between chroma channel components. The video coding method and the apparatus perform chrominance space conversion of Cb and Cr components using the selected method.

Abstract: A method and an apparatus are disclosed for video coding using improved cross-component linear model (CCLM) prediction. The video coding method and the apparatus generate a first predictor of a current chroma block according to CCLM prediction, and additionally generate a second predictor of the current chroma block based on the neighboring pixels of the current chroma block in intra prediction of the current chroma block. The video coding method and the apparatus perform weighted combination on the first predictor and the second predictor.

Abstract: A video coding method and an apparatus using an adaptive order of intra sub-partitions are provided. The video coding method and apparatus adaptively determine an encoding/decoding order of subblocks based on at least one of a shape of the subblock, a size of the subblock, a sub-splitting direction, and a prediction mode in performing intra prediction of the subblocks split from a current block using an ISP mode.

Abstract: A network separation device that can separate an internal network and an external network with little changes in the networks in a video surveillance system providing monitoring picture data through the internal network and the external network. The network separation device receives monitoring picture data from a monitoring camera that acquires a monitoring picture, transmits outbound picture data unidirectionally to an external network client through an external network in response to a request of the external network client, and transmits inbound picture data to an internal network client through an internal network in response to another request from of the internal network client.

Abstract: A network separation device that can separate an internal network and an external network with little changes in the networks in a video surveillance system providing monitoring picture data through the internal network and the external network. The network separation device receives monitoring picture data from a monitoring camera that acquires a monitoring picture, transmits outbound picture data unidirectionally to an external network client through an external network in response to a request of the external network client, and transmits inbound picture data to an internal network client through an internal network in response to another request from of the internal network client.

Abstract: A camera apparatus including a wide area monitoring camera and an intensive monitoring camera as one body. The camera apparatus includes a main frame, a first camera unit and a second camera unit. The main frame has a lens installation surface where a normal line is directed to the lower outside. The first camera unit is installed in the main frame, has a wide angle lens disposed on the lens installation surface so as to direct an optical axis to lower outside and a first image sensor for converting light entering through the wide angle lens into an electrical signal, and photographs images of neighboring areas including an area directly below the camera apparatus. The second camera unit has a second image sensor and is installed so as to rotate horizontally and vertically with respect to the main frame.

Abstract: The present invention relates to a monitoring camera apparatus which directly detects motion in an image to control the pan/tilt/zoom of a centralized monitoring camera, and which transmits a wide area monitoring image and a centralized monitoring image together to a control device in a remote place, and also relates a remote monitoring system using same. The monitoring camera apparatus acquires monitoring images to be displayed in a remote control device (40), and controls a centralized monitoring imaging unit (20) without the assistance of the remote control device (40). The monitoring camera apparatus comprises a wide angle imaging unit (110), a control and signal-processing unit (120), and signal-transmitting units (160, 162). The wide angle imaging unit (110) acquires a wide angle image for a monitoring area.