Elbit Systems develops, manufactures and integrates advanced, high-performance defense electronic and electro-optic
systems for customers throughout the world. Its major activities include command, control, communication, computer
and intelligence (C4I) systems and intelligence surveillance and reconnaissance (ISR) systems for defense and homeland
"Compression of Video Sequences using Three-Dimensional Vector Quantization".
video sequence is often visualized as a three-dimensional (3D) signal X,
Y, (spatial) and T (time).
A video sequence is often visualized as a three-dimensional (3D) signal X, Y, (spatial) and T (time).
Thus we extend the 2D-DCT compression approach (Discrete Cosine Transform) to 3D-DCT. More
We have also tested compression scheme based on a localized approach to video sequences using
three-dimensional vector quantization (3D VQ). According to the proposed model, recent localized
history of the sequences is used to encode present frames based on a hierarchical approach. More
Supervisor: Dr. Moshe Porat
I have guided the following projects in the Vision Research and Image Sciences Lab:
SPIE International Symposium on Electronic Imaging, San Jose, California (2002).
IAPR/IEEE Conference on Image and Vision Computing, New Zealand IVCNZ'01, pp. 333-337 (2001).
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