1. A network video camera supporting multiple output modes including output of full resolution full field of view images, output of reduced resolution full field of view images, and output of window-of-interest partial images, said camera comprising: an image sensor for sensing and outputting images; an image buffer memory for storing said output images; an image processor for decimating said output images to generate images with said reduced resolution and full field of view, and for generating said window-of-interest partial images; a network interface for transmission of image data off camera; and a motion detection module configured to detect presence of moving objects in the field of view of the camera and to select between said output modes of the camera based on the results of said motion detection, wherein the network interface is capable of transmitting a selected decimated output of said reduced resolution full field of view and a selected output of window-of-interest partial field of view in a time-interleaved fashion, wherein said motion detection module is configured to select said full resolution full field of view images when the presence of moving objects in the field of view of the camera has been detected and to select said reduced resolution full field of view images when the presence of moving objects in the field of view of the camera has not been detected.