Abstract
Java Digital Signal Processing (J-DSP) is a Java-based object-oriented programming environment that was developed at Arizona State University (ASU) for use in undergraduate- and graduate-level engineering classes. J-DSP is written as a platform-independent Java applet that resides on the Web and is thereby accessible by all students using a Web browser. We describe an innovative software extension to J-DSP, called 2D J-DSP, to accommodate on-line laboratories for two-dimensional digital signal processing. Two-dimensional DSP capabilities in J-DSP include: 2D signal generation; 2D FIR filter design and implementation; 2D transforms. Image processing capabilities include image restoration and enhancement. In order to illustrate 2D concepts graphically, contour (2D) and perspective (3D) plots have been incorporated in 2D J-DSP. Online laboratory exercises have been developed in the aforementioned areas for use in the graduate-level multidimensional signal processing and image processing courses at ASU, and are posted on the Website (http://jdsp.asu.edu). Statistical and qualitative evaluations that assess the learning experiences of the students that use 2D J-DSP are also presented.
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