Gradient-Domain Bidirectional Path Tracing

Gradient-domain path tracing has recently been introduced as an efficient realistic image synthesis algorithm. This paper introduces a bidirectional gradient-domain sampler that outperforms traditional bidirectional path tracing often by a factor of two to five in terms of squared error at equal render time. It also improves over unidirectional gradient-domain path tracing in challenging visibility conditions, similarly as conventional bidirectional path tracing improves over its unidirectional counterpart. Our algorithm leverages a novel multiple importance sampling technique and an efficient implementation of a high-quality shift mapping suitable for bidirectional path tracing. We demonstrate the versatility of our approach in several challenging light transport scenarios.

Sound and music: an elementary treatise on the physical constitution of musical sounds and harmony, including the chief acoustical discoveries of Professor Helmholtz.

Mode of access: Internet.

Dosco Machine

IMB (Irvine, Michigan, Brookline), a collaboration between the University of Michigan, the University of California at Irvine, and the U.S. Department of Energy, was an experiment designed to determine the ultimate stability of matter. Construction image. Mechanical "mole" (dosco machine) brought in by Morton Salt Co. to dig the cavity of IMB, 1979-1980

Test of vehicle seating reference using the SAE J826b H-point machine. Final report.

National Highway Traffic Safety Administration, Washington, D.C.

Concepts and techniques of machine safeguarding.

Shipping list no.: 92-486-P.

The truth about "The voting machine deal".

Mode of access: Internet.

Wage scale and working rules agreed upon by the machine glass bottle and jar manufacturers and the Glass Bottle Blowers' Association of the United States and Canada, blast ...

Description based on: 1913/1914.

Blueprint reading for the machine trades /

Includes index.

Automatic tread gaging machine. Technical report.

Mode of access: Internet.

Machine intelligence and robotics : report of the NASA Study Group : final report.

Mode of access: Internet.

Answering the call : the Telephone Pioneer talking-book machine-repair program, 1960-1993 /

Mode of access: Internet.

Manual of the Maxim automatic mitrailleuse, or rifle calibre machine gun.

Mode of access: Internet.

Manual of instruction in forge and machine work, with figured drawings of methods and exercises used in the Fowler shops of Kansas University.

Mode of access: Internet.