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- Jason D. Hartline, Edwin S. Hong, Alexander E. Mohr, William R. Pentney, Emily Rocke
- Algorithmica
- 2002

We consider history independent data structures as proposed for study by Naor and Teague. In a history independent data structure, nothing can be learned from the memory representation of the data structure except for what is available from the abstract data structure. We show that for the most part, strong history independent data structures have canonical… (More)

- Edwin S. Hong, Richard E. Ladner
- IEEE Trans. Image Processing
- 2000

This paper presents Group Testing for Wavelets (GTW), a novel embedded-wavelet-based image compression algorithm based on the concept of group testing. We explain how group testing is a generalization of the zerotree coding technique for wavelet-transformed images. We also show that Golomb coding is equivalent to Hwang's group testing algorithm. GTW is… (More)

- Edwin S. Hong, Richard E. Ladner, Eve A. Riskin
- Data Compression Conference
- 2001

This paper introduces Group Testing for Wavelet Packets (GTWP), a novel embedded image compression algorithm based on wavelet packets and group testing. This algorithm extends the Group Testing for Wavelets (GTW) algorithm [7] to handle wavelet packets. Like its predecessor, GTWP obtains good compression performance without the use of arithmetic coding. It… (More)

This paper introduces a new image coder based on several different block transforms and on group testing. It extends the Group Testing for Wavelets algorithm [2] by replacing the discrete wavelet transform with the discrete cosine transform, and orthogonal and biorthogonal lapped transforms. In particular, we compare the performance of group testing on… (More)

- Edwin S. Hong, Richard E. Ladner, Eve A. Riskin
- Sig. Proc.: Image Comm.
- 2003

This paper extends the group testing for wavelets (IEEE Trans. Image Process. 11 (2002) 901) algorithm to code coefficients from the wavelet packet transform, the discrete cosine transform, and various lapped transforms. Group testing offers a noticeable improvement over zerotree coding techniques on these transforms; is inherently flexible; and can be… (More)

- Kameron Romines, Edwin S. Hong
- 2007 Data Compression Conference (DCC'07)
- 2007

Hyperspectral imaging is of interest in a large number of remote sensing applications, such as geology and pollution monitoring, in order to detect and analyze surface and atmospheric composition. The processing of these images, called spectral analysis, allows for the identification of the specific mineralogical and agricultural elements which compose an… (More)

- Edwin S. Hong, Richard E. Ladner
- IEEE International Conference on Image Processing…
- 2005

For binary two-state Markov sources, we compute the bit-rate for context-independent Golomb coding, sequential coding, and interleaved coding. We also relate these coding methods to image compression work. Sequential coding is a context-dependent method that sequentially codes the source, choosing the order of the elementary Golomb code based on the last… (More)

- Edwin S. Hong
- 2000

- Edwin S. Hong
- 2007

We examine the applicability of group testing to wavelet-based image compression. We first review some recent image compression techniques and explain the group testing framework. We then explain how group testing already has been applied in image compression. In particular, we show that group testing is a generalization of the zerotree coding technique,… (More)

- Edwin S. Hong, Richard E. Ladner
- DCC
- 2002