کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5007830 | 1461699 | 2017 | 14 صفحه PDF | دانلود رایگان |
- An asymmetric integral imaging system for pickup and 3-D display of far outdoor scenes is proposed.
- A dynamic pixel mapping (DPM) algorithm to transform the picked-up EIs into those for the display.
- Successful experiments confirm that the proposed system can provide 3-D video images in 25[fps].
A new asymmetric integral imaging (AII) system for real-time pickup and three-dimensional (3-D) display of far outdoor scenes based on dynamic-pixel-mapping (DPM) is proposed. DPM is a digital process to transform the elemental images captured with a lens array into the perspective-variant object images (POIs) whose structures are matched with those of display lenses, where the orders of pixels in each POI are reversely mapped, and then capture a set of virtual elemental images (EIs) at the specific depth planes from the back-propagated POIs. This DPM enables an asymmetrical use of pickup and display lens arrays, allowing the long-ranged pickup of far outdoor scenes and their resolution-enhanced 3-D reconstruction. Experiments with a pair of pickup and display lens arrays whose pitches and focal lengths are given by 7.5Â mm, 30Â mm and 1.2Â mm, 8Â mm, respectively, show that the effective pickup-range and resolution of the proposed system have been increased up to 6Â m and 1600Ã1600 pixels, respectively, from 0.064Â m and 480Ã480 pixels of the conventional systems employing the same pickup and display lens arrays. In addition, experiments with an implemented test bed confirms that the proposed system can provide real-time 3-D images in 25 frames per second.
Journal: Optics and Lasers in Engineering - Volume 94, July 2017, Pages 44-57