Abstract: A method is provided for supplying to an operator a video stream from at least one of a plurality of cameras that capture images. This includes connecting the cameras and a computer to a network and recording the images from each camera into a corresponding buffer accessible to the computer. Upon detecting a triggering event associated with an event-recording camera, further operations include responding to the triggering event by depositing the images from an event-recording buffer corresponding to said event-recording camera as the video stream into a reviewable memory, and retrieving the video stream from the reviewable memory for the operator. The operator is preferably one of a commander using a command workstation, a lethal response operator using a lethal workstation, and a non-lethal response operator using a non-lethal workstation. Also preferably, each workstation is assigned as one of a primary brain and failover brains.

Abstract: Images of rock formations below the earth's surface can be obtained on a microscopic scale. A borehole tool uses a seal to isolate an interval of the formation from borehole fluids which are outside the seal. A probe of the tool engages a wall of the formation and then draws formation fluid from the formation into the interior of the tool. The tool then produces an optical image of the formation which indicates rock texture. The seal can comprise a pad, inflatable packers, compressional packers, or cement plugs. The images of the formation can be obtained with electro-optic imagers such as charge-coupled devices (CCD) or a camera operating in the visible and/or near infrared range, or with ultrasonic transducers operating in the sub-MHz to mid GHz range, for example. The near infrared range provides an optical image of the formation through opaque fluids such as oil based muds or oil itself.