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| Generalization: |
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| light
fields |
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| Radiance as a function of position and |
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| direction in a static scene |
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| with fixed illumination |
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| • | For
general scenes |
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| Þ 5D function |
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| L ( x, y, z, q, f
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| • | In
free space |
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| Þ 4D function |
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