منابع مشابه
Time Interval Ray Tracing for Motion Blur
We introduce a new motion blur computation method for ray tracing that provides an analytical approximation of motion blurred visibility per ray. Rather than relying on timestamped rays and Monte Carlo sampling to resolve the motion blur, we associate a time interval with rays and directly evaluate when and where each ray intersects with animated object faces. Based on our simplifications, the ...
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Foveated, log-polar, or space-variant image architectures provide a high resolution and wide eld workspace, while providing a small pixel computation load. These characteristics are ideal for mobile robotic and active vision applications. A common problem in these application areas is image blur and motion artifact. Recently, there has been described a generalization of the Fourier Transform (t...
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Recently Bühler has introduced a new type of bounding volume for parametric surfaces. These bounding volumes, which Bühler calls Linear Interval Estimations (LIEs), are parametrized with the same parametrization as the surfaces they bound. We report on the application of LIEs to the ray tracing of Bezier surfaces. The general nonlinear ray–surface intersection problem is replaced with a linear ...
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Although spatial deblurring is relatively well understood by assuming that the blur kernel is shift invariant, motion blur is not so when we attempt to deconvolve on a frame-by-frame basis: this is because, in general, videos include complex, multilayer transitions. Indeed, we face an exceedingly difficult problem in motion deblurring of a single frame when the scene contains motion occlusions....
متن کاملSpace Time Ray Tracing using Ray Classification
Throughout the history of computer graphics, a very active area of research has been the attempt to create convincing, life-like images. Ray tracing is a technique for generating photorealistic images, and can easily support a wide range of natural phenomenon. However, producing a ray traced image is very expensive; and producing a ray traced animation is often prohibitively expensive. This the...
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ژورنال
عنوان ژورنال: IEEE Transactions on Visualization and Computer Graphics
سال: 2018
ISSN: 1077-2626,1941-0506,2160-9306
DOI: 10.1109/tvcg.2017.2775241