Hon Nin Cheung

Learn More
In this paper, we present a hardware implementation of an embedded wavelet coding system using the Set Partitioning in Hierarchical Trees (SPIHT) algorithm. The coding system can be switched to perform encoding and decoding on the same device. The input into the system during encoding is a stream of image pixels and the output is an encoded bit stream ready(More)
The SPIHT algorithm is a popular algorithm using wavelet techniques for image compression. In this paper, we present modifications to the algorithm by: 1) sending additional information to the decoder about the largest magnitudes in the frequency subbands; and 2) modifying selected coefficients in the high frequency subbands. The proposed modifications give(More)
This paper presents an approach for optimal routing of distribution network including sitting of substation. The problem of distribution system planning (DSP) is a large scale, very complex and difficult to define problem. This paper presents the application of an efficient Genetic Algorithm (GA) for the optimal design of large distribution system, solving(More)
In this paper, we present a hardware architecture to implement the decoder for the embedded zerotree wavelet (EZW) algorithm. The decoder architecture complements an encoder architecture for the EZW algorithm which has been reported recently. Similar to the reported encoder architecture, the proposed decoder architecture is regular and modular and is(More)
  • 1