A. B. VanderLugt, "Signal detection by complex spatial filtering, " IEEE Trans. Inf. Theory 10, 139--145 #1964#.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....Sect. 5, and in Sect. 6 we describe unit and integration testing using junit. 2 Model of computation The continuous space model of computation is inspired by the theory of Fourier optics. The model was developed for the analysis of (analog) Fourier optical computing architectures and algorithms [3, 4, 5]. The model operates in discrete timesteps over a finite number of twodimensional (2D) images. It can navigate, copy, and perform other optical operations on its images. A useful analogy would be to describe the model as a random access machine, without conditional branching and with registers ....

A. VanderLugt, "Signal detection by complex spatial filtering," IEEE Transactions on Information Theory IT-10, 139--145, 1964.

....Fourier transform. This follows from the well known theory that a space domain convolution may be represented by an equivalent frequency domain multiplication. Matched filtering allows reliable detection of signals in the presence of noise (white noise, in the simplified case of (1) VanderLugt [21] proposed and demonstrated a practical technique for representing these complex matched filters with a purely amplitude modulating SLM. These practical filters have subsequently become known as VanderLugt filters. Apart from its many positive aspects, pattern recognition through matched filtering ....

Anthony VanderLugt, "Signal detection by complex spatial filtering", IEEE Transactions on Information Theory, vol. IT-10, pp. 139--145, April 1964.

....fingerprints. Preliminary results on optical correlation matching of real time fingerprints. The test samples used in the inked image experiments are the fingerprint taken from NIST Special Database SD 9. These images, in both binary and gray level forms, are stored in a VanderLugt correlator [1]. Tests of typical cross correlations and auto correlation sensitivity for both binary and 8 bit gray images are presented. When global correlations are tested on a second inked image results are found to be strongly in uenced by plastic distortion of the finger. When the correlations are used to ....

....types of correlators. The two types of fingerprint images are rolled inked prints scanned at 20 pixels mm scan rate and real time fingerprint images acquired using NTSC video from an real time optical live scan device. We study matching of the inked fingerprints using global optical correlations [1] and partial optical correlation features and a system of neural classification and matching networks [2] Initial results for live scan prints (real time data) and static rolled inked fingerprints for optical matching show that, with proper selection of input for the stored hologram, direct ....

[Article contains additional citation context not shown here]

A. VanderLugt. Signal detection by complex spatial filtering. IEEE Trans. Inform. Theory, IT-10:139--145, 1964.

....has resulted in major research efforts for exploiting the use of optics in symbolic AI computing[7 16] Warde and Kottas [7] have proposed two different hybrid optical inference machines. The matched filter inference machine performs inference using a classical VanderLugt matched filter system [8]. The mapped template inference machine matches a template representing the relationship between input and output data to produce related output data using the optical correlograph system of Willshaw and Longuet Higgins [11] Jau et al. 9] used a semantic network as a knowledge representation ....

A. B. VanderLugt, "Signal detection by complex spatial filtering," IEEE Trans. on Inf. Theory, IT-10, 2, (1964).

.... and synchronization problems [11] 12] Optics has been introduced as an alternative to improve the speed of RBSs because of the ability to represent knowledge in two dimensional (2 D) space and because of natural implementation of the parallel pattern matching and comparison operations [12] 13] [14] [15] Previously proposed optical expert systems include a matched filter inference engine 3 using a classical Vander Lugt matched filter [14] and an optical expert system based upon an optical vector matrix multiplier [15] However, these systems do not fully utilize all the available ....

.... knowledge in two dimensional (2 D) space and because of natural implementation of the parallel pattern matching and comparison operations [12] 13] 14] 15] Previously proposed optical expert systems include a matched filter inference engine 3 using a classical Vander Lugt matched filter [14] and an optical expert system based upon an optical vector matrix multiplier [15] However, these systems do not fully utilize all the available parallelism in RBS, particularly rule level parallelism where more than one rule is fired at a time. Recently the authors introduced a new optical system ....

A. B. VanderLugt, "Signal detection by complex spatial filtering," IEEE Trans. on Inf. Theory, IT-10, 2, (1964).

....main body of this report. The test bed systems are briefly discussed below as is a proposed design for the combined real time video system. 1.1 Optical Correlator Figure 1 shows a schematic diagram of the optical pattern recognition system. It is based on the conventional VanderLugt correlator [1]. The target fingerprint image is loaded on a spatial light modulator, SLM, and is Fourier transformed by a lens. The resulting Fourier spectrum interferes with a reference beam to record a Fourier transform, FT, hologram, or a matched spatial filter (MSF) After recording is finished, if an ....

A. VanderLugt. Signal detection by complex spatial filtering. IEEE Trans. Inform. Theory, IT-10:139--145, 1964.

No context found.

A. B. VanderLugt, "Signal detection by complex spatial filtering, " IEEE Trans. Inf. Theory IT-10, 139--145 #1964#.

No context found.

A. B. VanderLugt, "Signal detection by complex spatial filtering, " IEEE Trans. Inf. Theory 10, 139--145 #1964#.

No context found.

A. B. VanderLugt, "Signal detection by complex spatial filtering," IEEE Trans. Inf. Theory 10, 139-145, 1964.

No context found.

A. VanderLugt, Signal detection by complex spatial filtering, IEEE Transactions on Information Theory IT-10 (1964) 139--145.

No context found.

A. VanderLugt, "Signal detection by complex spatial filtering, " IEEE Trans. Inf. Theory IT-10, 139--145 (1964).

No context found.

A. VanderLugt, "Signal detection by complex spatial filtering, " IEEE Trans. Inf. Theory IT-10, 139--145 (1964).

No context found.

A. B. VanderLugt, "Signal detection by complex spatial filtering, " IEEE Trans. Inf. Theory IT-10, 139--145 #1964#.

No context found.

A. B. VanderLugt, "Signal detection by complex spatial filtering, " IEEE Trans. Inf. Theory IT-10, 139--145 #1964#;B.V.K. Vijaya Kumar, "Tutorial survey of composite filter designs for optical correlators," Appl. Opt. 31, 4773--4801 #1992#.

Online articles have much greater impact   More about CiteSeer.IST   Add search form to your site   Submit documents   Feedback  

CiteSeer.IST - Copyright Penn State and NEC