Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 8 of 8 for “"JTC"”.
-
Novel Optical Technique for Real-Time Pattern/Image Recognition
… a novel real-time joint-Transform correlation (JTC) technique for optical pattern recognition. To replace the film recording aspect of performing optical correlation, conventional real-time joint-Transform correlation (JTC) optical systems make use of a spatial light modulator (SLM) located in …
-
Multi-Reference Pseudo-Random Phase-Encoded Joint Transfrom Correlation
… phase encoded joint transform correlator(JTC) compared to an ordinary JTC. Maximal length sequences are shifted to form two dimensional orthogonal arrays referred as m-arrays. The phase mask is used in one step to encode multiple reference images and at the same time eliminate false …
-
The investigation of correlator systems utilizing object and frequency space filters
… A photorefractive joint transform correlator (JTC) using Bismuth Silicon Oxide (BSO) as a non-linear recording medium and a liquid crystal television as a spatial light modulator is implemented. The underlying physics is considered, some specific techniques to improve the operation are …
-
Bandpass filters for unconstrained target recognition and their implementation in coherent optical correlators
… implemented in a joint transform correlator (JTC) based on a NDFWM interaction in Bi12SiO20. The JTC is described and its full bandwidth performance initially assessed. As anticipated from the previous considerations, inter-class discrimination was high but the intra-class tolerance very poor …
-
Understanding mechanisms related to psychosis in Motor Neurone Disease
… to quantify jumping to conclusions (JTC), (ii) attentional control and associative learning, (iii) perceptual inference, and (iv) psychiatric screening with Neuropsychiatric Inventory (NPI), Brief Psychiatric Rating Scale (BRPS), and the Comprehensive Assessment of At-Risk Mental …
-
Diffraction-based Optical Architectures for Processing One-dimensional Data
… of 1D signals in a standard free-space JTC setup is revealed, then tested end-to-end in simulation with point-spread functions (PSFs) incorporated. Multiplications of hundred-bit integers, encoded as binary vectors, are demonstrated to high precision using simulated apparatus featuring a …
-
Properties and processing applications of photoreactive BSO
A joint transform correlator (JTC) using photorefractive Bismuth Silicon Oxide (BSO) as a nonlinear recording medium, and a liquid crystal television (LCTV) as a spatial light modulator (SLM) is implemented. The physical basis of the processes involved in the photoreffactive recording is studied, …