We present a novel system capable of capturing high dynamic range (HDR) Light Probes at video speed. Each Light Probe frame is built from an individual full set of exposures, all of which are captured within the frame time. The exposures are processed and assembled into a mantissa-exponent representation image within the camera unit before output, and then streamed to a standard PC. As an example, the system is capable of capturing Light Probe Images with a resolution of 512x512 pixels using a set of 10 exposures covering 15 f-stops at a frame rate of up to 25 final HDR frames per second. The system is built around commercial special-purpose camera hardware with on-chip programmable image processing logic and tightly integrated frame buffer memory, and the algorithm is implemented as custom downloadable microcode software.
| Identifer | oai:union.ndltd.org:UPSALLA1/oai:DiVA.org:liu-16282 |
| Date | January 2004 |
| Creators | Unger, Jonas, Gustavson, Stefan, Ollila, Mark, Johannesson, Mattias |
| Publisher | Linköpings universitet, Visuell informationsteknologi och applikationer, Linköpings universitet, Tekniska högskolan, Linköpings universitet, Visuell informationsteknologi och applikationer, Linköpings universitet, Tekniska högskolan, Integrated Vision Products AB, Sweden, Integrated Vision Products AB, Sweden |
| Source Sets | DiVA Archive at Upsalla University |
| Language | English |
| Detected Language | English |
| Type | Conference paper, info:eu-repo/semantics/conferenceObject, text |
| Format | application/pdf |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | The 25th Eurographics Annual Conference 2004 Short papers and Interactive Applications, Grenoble, France |
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