Journal ArticleDOI
Three-dimensional object recognition by Fourier transform profilometry
TLDR
An automatic method for three-dimensional (3-D) shape recognition that combines the Fourier transform profilometry technique with a real-time recognition setup such as the joint transform correlator (JTC).Abstract:
An automatic method for three-dimensional (3-D) shape recognition is proposed. It combines the Fourier transform profilometry technique with a real-time recognition setup such as the joint transform correlator (JTC). A grating is projected onto the object surface resulting in a distorted grating pattern. Since this pattern carries information about the depth and the shape of the object, their comparison provides a method for recognizing 3-D objects in real time. A two-cycle JTC is used for this purpose. Experimental results demonstrate the theory and show the utility of the new proposed method.read more
Citations
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Journal ArticleDOI
Three-dimensional object recognition by use of digital holography
Bahram Javidi,Enrique Tajahuerce +1 more
TL;DR: A technique for performing three-dimensional pattern recognition by use of in-line digital holography, where the complex amplitude distribution generated by a 3D object at an arbitrary plane located in the Fresnel diffraction region is recorded by phase-shifting interferometry.
Journal ArticleDOI
Compression of digital holograms for three-dimensional object reconstruction and recognition
TL;DR: This work quantifies the number of Fourier coefficients that can be removed from the hologram domain, and the lowest level of quantization achievable, without incurring significant loss in correlation performance or significant error in the reconstructed object domain.
Journal ArticleDOI
Advanced optical correlation and digital methods for pattern matching—50th anniversary of Vander Lugt matched filter
TL;DR: The paper reviews some domains that appeared as emerging fields in the last years of the 20th century and have been developed later on in the 21st century, such as three-dimensional object recognition, biometric pattern matching, optical security and hybrid optical–digital processors.
Journal ArticleDOI
Shift-invariant three-dimensional object recognition by means of digital holography
TL;DR: An optoelectronic method to analyze three-dimensional scenes that is able to detect the presence, and also the position and orientation, of a reference 3D object and allows for a small out-of-plane rotation.
Journal ArticleDOI
Review of three-dimensional holographic imaging by multiple-viewpoint-projection based methods
TL;DR: Methods of generating multiple viewpoint projection holograms of three-dimensional (3-D) realistic objects illuminated by incoherent white light are reviewed, and the proposed hybrid optical-digital process can yield novel types of holograms such as the modified Fresnel hologram and the protected correlation hologram.
References
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Journal ArticleDOI
Introduction to Fourier Optics
Joseph W. Goodman,Mary E. Cox +1 more
TL;DR: The second edition of this respected text considerably expands the original and reflects the tremendous advances made in the discipline since 1968 as discussed by the authors, with a special emphasis on applications to diffraction, imaging, optical data processing, and holography.
Book
Introduction to Fourier optics
TL;DR: The second edition of this respected text considerably expands the original and reflects the tremendous advances made in the discipline since 1968 as discussed by the authors, with a special emphasis on applications to diffraction, imaging, optical data processing, and holography.
Proceedings Article
Three-dimensional computer vision: a geometric viewpoint
TL;DR: Results from constrained optimization some results from algebraic geometry differential geometry are shown.
Journal ArticleDOI
Fourier transform profilometry for the automatic measurement of 3-D object shapes
Mitsuo Takeda,Kazuhiro Mutoh +1 more
TL;DR: A new computer-based technique for automatic 3-D shape measurement is proposed and verified by experiments that has a much higher sensitivity than the conventional moire technique and is capable of fully automatic distinction between a depression and an elevation on the object surface.
Journal ArticleDOI
Signal detection by complex spatial filtering
TL;DR: The experimental results obtained to date indicate that this technique provides an excellent two-dimensional filtering capability that will play a key role in such problems as shape recognition and signal detection.
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Three-dimensional object recognition by use of digital holography
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Fourier transform profilometry for the automatic measurement of 3-D object shapes
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