mpac.ee.ntu.edu.tw Programmable Aperture Photography: Multiplexed Light Field Acquisition (SIGGRAPH 2008) Chia-Kai Liang, Tai-Hsu Lin, Bing-Yi Wong, Chi Liu, and Homer Chen National Taiwan University –Abstract– We present a system including a novel component called programmable aperture and two associated post-processing algorithms for high-quality light field acquisition. The shape of the programmable aperture can be adjusted and used to capture light field at full sensor resolution through multiple exposures without any additional optics and without moving the camera. High acquisition efficiency is achieved by employing an optimal multiplexing scheme, and quality data is obtained by using the two postprocessing algorithms designed for self calibration of photometric distortion and for multi-view depth estimation. View-dependent depth maps thus generated help boost the angular resolution of light field. Various post-exposure photographic effects are given to demonstrate the effectiveness of the system and the quality of the captured light field.
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DO WANT!!
How long till a consumer camera has this all running in the handheld device?
Without post-processing, we can still generate those effects at the same speed (with lower quality). This can provide fast preview for the users.
Sorry for the late reply. The post-processing includes the calibration (as required by other imaging system) and the depth estimation. Because of the huge data-size (tens to hundreds mega pixels), it takes few hours to generate the high resolution depth maps.
The good thing is, the post-processing is automatic, you don’t have to adjust any parameter. The applications (refocusing/view interpolation) can be done in near real-time after the depth maps are generated.
I really like the effects. How much post processing are we talking about?
This is brilliant and excellent work. Keep up the amazing job!