This book is a supplement to Volume V/I in the present series, Diag- nostie Radiology, published in 1962. Despite the relatively long period of time whieh has elapsed sinee its publieation, that eomprehensive vol- urne is still essentially valid, even though further developments have of course oeeurred in eertain fields. In reeent years the developments in nuclear medieine and ultrasonie teehniques have led to a number of new methods of medieal investigation, whieh, in different ways, eomplement diagnostie radiology. Funetional disorders of the urinary traet ean often be detected by means of radioiso- topes. Sinee morphologie ehanges are almost always preeeeded by fune- tional disturbanees, radionuclide teehniques in many instanees produee an earlier diagnosis than radiography. Disturbances of renal blood flow, slight ureterie obstruetion, and ureterie reflux are examples of pathologie states whieh ean be deteeted early by the y scintillation eamera. Bone seans, Le., imaging of the skeletal system using a radionuclide, are used extensively to diagnose bone metastases now that it has been demonstrated that such metastatie growths are identified both earlier and with greater aeeuraey by scintigraphy than by radiographie teeh- niques.

This tour de force in experimental robotics describes the first robot able to play, and even beat, human ping-pong players. This tour de force in experimental robotics paves the way toward understanding dynamic environments in vision and robotics. It describes the first robot able to play, and even beat, human ping-pong players.Constructing a machine to play ping-pong was proposed years ago as a particularly difficult problem requiring fast, accurate sensing and actuation, and the intelligence to play the game. The research reported here began as a series of experiments in building a true real-time vision system. The ping-pong machine incorporates sensor and processing techniques as well as the techniques needed to intelligently plan the robot's response in the fraction of a second available. It thrives on a constant stream of new data. Subjectively evaluating and improving its motion plan as the data arrives, it presages future robot systems with many joints and sensors that must do the same, no matter what the task. Contents Introduction * Robot Ping-Pong * System Design * Real-Time Vision System Robot Controller * Expert Controller Preliminaries * Expert Controller * Robot Ping-Pong Application * Conclusion A Robot Ping-Pong Player is included in the Artificial Intelligence Series, edited by Patrick Winston and Michael Brady.