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- Khan Wahid, Vassil S. Dimitrov, Graham A. Jullien
- Journal of Circuits, Systems, and Computers
- 2004

This paper presents a novel error-free (infinite-precision) architecture for the fast implementation of 8x8 2-D Discrete Cosine Transform. The architecture uses a new algebraic integer encoding of a 1-D radix-8 DCT that allows the separable computation of a 2-D 8x8 DCT without any intermediate number representation conversions. This is a considerable… (More)

321 Note that the proposed methodology for examining activity logs is more or less automatic-that is, it allows for little human interaction. However, experimental results have shown that such algorithms are not very successful. Therefore, it is worth exploring how human experts can participate in the different stages of pattern discovery. For example, when… (More)

- Khan Wahid, Vassil S. Dimitrov, Graham A. Jullien
- IEEE Symposium on Computer Arithmetic
- 2005

This paper presents a novel error-free (infinite-precision) architecture for the fast implementation of both 2-D Discrete Cosine Transform and Inverse DCT. The architecture uses a new algebraic integer quantization of a 1-D radix-8 DCT that allows the separable computation of a 2-D DCT without any intermediate number representation conversions. This is a… (More)

- Khan Wahid, Vassil S. Dimitrov, Graham A. Jullien
- APCCAS
- 2006

- Pranav Balakrishnan, Khan Wahid
- 2013 26th IEEE Canadian Conference on Electrical…
- 2013

The paper presents a lifting based algorithm to compute Daubechies-4 (D4) and Daubechies-6 (D6) Wavelet Transforms using a novel algebraic integer quantization (AIQ) technique. The complex transform filter coefficients are first mapped error-freely by algebraic integers, and then quantized using subband coding algorithm. The performance of the scheme is… (More)

- Md Mehedi Hasan, Mohammad Wajih Alam, Khan A Wahid, Sayem Miah, Kiven Erique Lukong
- PloS one
- 2016

This paper describes the development of a prototype of a low-cost digital fluorescent microscope built from commercial off-the-shelf (COTS) components. The prototype was tested to detect malignant tumor cells taken from a living organism in a preclinical setting. This experiment was accomplished by using Alexa Fluor 488 conjugate dye attached to the cancer… (More)

- Pranav Balakrishnan, Md Mehedi Hasan, Khan A. Wahid
- Canadian Journal of Electrical and Computer…
- 2014

This paper presents an efficient lifting-based algorithm for the computation of Daubechies-4 (D4) and Daubechies-6 (D6) wavelet transforms using an algebraic integer quantization (AIQ) technique. The transform filter coefficients are first mapped by algebraic integers, and then quantized using a subband coding algorithm. The performance of the algorithm is… (More)

- K. Wahid, V. Dimitrov, G. Jullien
- 17th IEEE Symposium on Computer Arithmetic (ARITH…
- 2005

This paper presents a novel error-free (infinite-precision) architecture for the fast implementation of both 8/spl times/8 2D discrete cosine transform and inverse DCT. The architecture uses a new algebraic integer quantization of a 1D radix-8 DCT that allows the separable computation of a 2D 8/spl times/8 DCT without any intermediate number representation… (More)

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