Regeneration of elemental images in integral imaging for occluded objects using a plenoptic camera

Min-Chul Lee; Kotaro Inoue; Cheol-Su Kim; Myungjin Cho

doi:10.3788/COL201614.121101

Chinese Optics Letters, Volume. 14, Issue 12, 121101(2016)

Regeneration of elemental images in integral imaging for occluded objects using a plenoptic camera

Min-Chul Lee¹, Kotaro Inoue¹, Cheol-Su Kim², and Myungjin Cho^3、*

Author Affiliations

¹Department of Computer Science and Electronics, Kyushu Institute of Technology, Fukuoka 820-8502, Japan

²Department of Electrical Energy and Computer Engineering, Gyeongju University, 188 Taejongro, Gyeongju City, KyeongsangBukdo, 38065, Republic of South Korea

³Department of Electrical, Electronic, and Control Engineering, IITC, Hankyong National University, 327 Chungang-ro, Anseong-si, Gyonggi-do 456-749, Republic of South Korea

show less

Figures & Tables(10)

Fig. 1. 4D light field function. (a) Overview and (b) plenoptic camera.

Download full size

View in Article

Fig. 2. Sub-aperture images.

Fig. 3. Refocusing.

Fig. 4. Image of equation (k=3, l=3): (a) EI, (b) D, (c) OL, (d) OREI, (e) VEI, and (f) REI.

Download full size

View in Article

Fig. 5. Overview of the algorithm. (a) Movement of elemental images and (b) shifted pixels for regeneration.

Download full size

View in Article

Fig. 6. Linear approximation results.

Download full size

View in Article

Fig. 7. Experimental results at d=620 mm: (a) original, (b) conventional occlusion removal, (c) proposed method, (d)–(f) enlarged views of (a)–(c), respectively.

Download full size

View in Article

Fig. 8. Quality of image using MSE and PSNR.

Download full size

View in Article

Table 1. Definition of Parameters

View table

View in Article

Table 1. Definition of Parameters

Parameter	Definition
$C$	Size of image sensor
$D$	Depth maps
EI	Elemental image
$M$	Movement of virtual object
$N$	Number of pixels for each elemental image
OL	Occlusion layer
OREI	Occlusion removed elemental image
REI	Regenerate elemental image
Sg	Number of shifted pixels for regeneration
Sr	Number of shifted pixels for reconstruction
Th	Threshold for occlusion layer
VEI	Virtual elemental image
$d$	Reconstruction distance
$f$	Focal length of image sensor
$p$	Moving gap between image sensor

Table 2. Calibration Results
View table
View in Article
Table 2. Calibration Results
Near Middle Far
$S$ (px) 105 71 57
$d$ (mm) 374.4 553.8 689.8
$t$ 118 149 164

Tools

Get Citation

Copy Citation Text

Min-Chul Lee, Kotaro Inoue, Cheol-Su Kim, Myungjin Cho, "Regeneration of elemental images in integral imaging for occluded objects using a plenoptic camera," Chin. Opt. Lett. 14, 121101 (2016)

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites