Related Experiment Video
Updated: Jul 7, 2026

Microfluidic Platform with Multiplexed Electronic Detection for Spatial Tracking of Particles
Published on: March 13, 2017
Codebook organization to enhance maximum a posteriori detection of progressive transmission of vector quantized
R Y Wang1, E A Riskin, R Ladner
1Dept. of Electr. Eng., Washington Univ., Seattle, WA.
Abstract:
We describe a new way to organize a full-search vector quantization codebook so that images encoded with it can be sent progressively and have resilience to channel noise. The codebook organization guarantees that the most significant bits (MSBs) of the codeword index are most important to the overall image quality and are highly correlated. Simulations show that the effective channel error rates of the MSBs can be substantially lowered by implementing a maximum a posteriori (MAP) detector similar to one suggested by Phamdo and Farvardin (see IEEE Trans. Inform. Theory, vol.40, no.1, p.156-193, 1994). The performance of the scheme is close to that of pseudo-gray coding at lower bit error rates and outperforms it at higher error rates. No extra bits are used for channel error correction.
Related Concept Videos
Difference from Background: Limit of Detection
The LOD indicates the presence or absence...
Classification of Signals
A continuous-time signal holds a value at every instant in time, representing information seamlessly. In contrast, a discrete-time signal holds values only at specific moments, often denoted as x(n), where...
Conservative Vector Fields
Vector Algebra: Method of Components
In many applications, the magnitudes and directions of...
Vector Representation of Complex Numbers
Consider a function defined as the product of the complex factors in the numerator divided by the product of the complex factors in the denominator.
Signal Sequences and Sorting Receptors