Single-Shot Dense 3D Reconstruction Using Self-Equalizing De Bruijn Sequence

Petković, Tomislav; Pribanić, Tomislav; Đonlić, Matea

doi:10.1109/tip.2016.2603231

Cited by 24 publications

(10 citation statements)

References 47 publications

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“…The shortest possible pattern of one image would allow the same acquisition rate for both image and 3D data. A good single-image SL pattern should use color and should enable dense 3D reconstruction; a good choice is the recently proposed one-image colored SL pattern [31].…”

Section: Discussionmentioning

confidence: 99%

Software Synchronization of Projector and Camera for Structured Light 3D Body Scanning

Petković¹,

Pribanić²,

Đonlić³

et al. 2016

Proceedings of the 7th International Conference on 3D Body Scanning Technologies, Lugano, Switzerland, 30 Nov.-1 Dec. 2016

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Current 3D body scanners based on structured light principle are expensive and somewhat bulky machines which limits their wider spread. One of the factors driving the scanner cost up is the requirement to synchronize projector and camera which requires either expensive system components a costly customized hardware synchronization solution. We propose a software solution to the projector-camera synchronization problem which enables construction of low-cost 3D scanner using common commercial off-the-shelf components only: a projector, a camera, and a computer. We also propose a simple calibration procedure for precise measurement of delay time which is necessary to achieve proper synchronization. We have developed a prototype system for 3D human body scanning using the proposed approach which achieves projector-camera synchronization and enables data acquisition at 30 FPS.

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Section: Discussionmentioning

confidence: 99%

Software Synchronization of Projector and Camera for Structured Light 3D Body Scanning

Petković¹,

Pribanić²,

Đonlić³

et al. 2016

Proceedings of the 7th International Conference on 3D Body Scanning Technologies, Lugano, Switzerland, 30 Nov.-1 Dec. 2016

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show abstract

“…Multi-shot and single-shot methods According to [11], SLbased camera-projector calibration methods can be categorized into two types: multi-shot [5,6,20,23,[32][33][34]37] and singleshot [2,4,17,35,36]. Specifically, multi-shot and single-shot indicate the number of SL pattern shots for each calibration board pose, rather than the total number of shots for the whole process.…”

Section: Related Workmentioning

confidence: 99%

A Single-Shot-Per-Pose Camera-Projector Calibration System for Imperfect Planar Targets

Huang¹,

Özdemir

Tang

et al. 2018

2018 IEEE International Symposium on Mixed and Augmented Reality Adjunct (ISMAR-Adjunct)

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Existing camera-projector calibration methods typically warp feature points from a camera image to a projector image using estimated homographies, and often suffer from errors in camera parameters and noise due to imperfect planarity of the calibration target. In this paper we propose a simple yet robust solution that explicitly deals with these challenges. Following the structured light (SL) camera-project calibration framework, a carefully designed correspondence algorithm is built on top of the De Bruijn patterns. Such correspondence is then used for initial camera-projector calibration. Then, to gain more robustness against noises, especially those from an imperfect planar calibration board, a bundle adjustment algorithm is developed to jointly optimize the estimated camera and projector models. Aside from the robustness, our solution requires only one shot of SL pattern for each calibration board pose, which is much more convenient than multi-shot solutions in practice. Data validations are conducted on both synthetic and real datasets, and our method shows clear advantages over existing methods in all experiments.

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“…Because Phase R ðx R_sub ; y R Þ represents the best matching point in the wrapped phase, it should be equivalent to the phase Phase L ðx L ; y L Þ in the left wrapped phase. Then, it can be expressed as E Q -T A R G E T ; t e m p : i n t r a l i n k -; e 0 1 1 ; 6 3 ; 6 9 7 Phase R ðx R_sub ; y R Þ ¼ Phase L ðx L ; y L Þ: (11) As shown in Fig. 5, when the original image matching point ðx R_o ; y R Þ is on the left of the best point ðx R_ min ; y R_ min Þ, it means the x R_o < x R_ min .…”

Section: Optical Engineeringmentioning

confidence: 99%

“…10 Because oneshot technologies only need one frame to get the wrapped phase, they have the potential to be used in high-speed measurement. It mainly contains color coding, 11 FTP, 12 and composite pattern; 13 however, these methods still have shortcomings. Color coding is encoded with different colors.…”

Section: Introductionmentioning

confidence: 99%

High-speed three-dimensional shape measurement using phase measurement profilometry without phase unwrapping

Yang

2018

Opt. Eng.

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In the fast three-dimensional (3-D) shape measurement, it is an important factor to use the least number of the fringe pattern to get 3-D shape measurement of arbitrary objects. Although one-shot technologies can use one-frame deformed fringe pattern to get the wrapped phase, they are easily affected by the surface property and suffer from poor spatial resolution. In addition to the process, phase unwrapping may affect the quality of absolute phase. This paper proposes a fast measurement method based on a phase measurement profilometry and stereo vision system. This method can reconstruct 3-D surface without phase unwrapping. Using original image matching constraint, a rough parallax is used in the phase matching. To resist the false matching, subpixel parallax optimization is used to reduce the matching errors. To detect the edge point of wrapped phase, the average phase is calculated. Experimental results verify the feasibility of the proposed method and it can measure complex objects without phase unwrapping.

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Single-Shot Dense 3D Reconstruction Using Self-Equalizing De Bruijn Sequence

Cited by 24 publications

References 47 publications

Software Synchronization of Projector and Camera for Structured Light 3D Body Scanning

Software Synchronization of Projector and Camera for Structured Light 3D Body Scanning

A Single-Shot-Per-Pose Camera-Projector Calibration System for Imperfect Planar Targets

High-speed three-dimensional shape measurement using phase measurement profilometry without phase unwrapping

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