Jonathan N. Bradley and Christopher M. Brislawn, "The FBI wavelet/scalar quantization standard for gray-scale fingerprint image compression," Technical Report LA-UR-93-1659, Los Alamos National Laboratory, Los Alamos, NM, 1993.  Home/Search   Document Not in Database   Summary   Related Articles   Check

.... of an algorithm may be provided with a detailed pseudo code template as exemplified in the wavelet transform algorithm published by Taswell and McGill [5] or with a su#ciently detailed listing of all mathematical equations and parameters as exemplified by the work of Bradley and Brislawn [6] for the FBI fingerprint image compression standard. However, these published examples remain more the exception than the rule. Systematic development of a standard for the specification and reproducibility of wavelet transform algorithms has not yet been promoted in the wavelet community. Thus, ....

....phases, normalization constants of the wavelet kernels as well as the phase shifts of each of the filters in the wavelet filter bank. These algorithmic details, however, are usually not reported in the literature albeit with certain exceptions such as the FBI fingerprint image compression standard [6]. Nevertheless, it is necessary to specify such details in order to insure the reproducibility of results output by each algorithm regardless of its implementation by any programmer working in any language or any engineer designing any DSP chip. This report has developed a specification and ....

Jonathan N. Bradley and Christopher M. Brislawn, "The FBI wavelet/scalar quantization standard for gray-scale fingerprint image compression," Technical Report LA-UR-93-1659, Los Alamos National Laboratory, Los Alamos, NM, 1993.

.... of an algorithm may be provided with a detailed pseudo code template as exemplified in the wavelet transform algorithm published by Taswell and McGill [3] or with su#ciently detailed listing of all mathematical equations and parameters as exemplified by the work of Bradley and Brislawn [4] for the FBI fingerprint image compression standard. However, these published examples remain more the exception than the rule. Systematic development of a standard for the specification and reproducibility of wavelet transform algorithms has not yet been promoted in the wavelet community. This ....

Jonathan N. Bradley and Christopher M. Brislawn, "The FBI wavelet/scalar quantization standard for gray-scale fingerprint image compression," Technical Report LA-UR-931659, Los Alamos National Laboratory, Los Alamos, NM, 1993.

....of the data, addition coefficients can be imagined as zooming in to areas of high detail. Figure 5 illustrates this. Recently they has been an explosion of interest in using wavelets for data compression, filtering, analysis and other areas where Fourier methods had previously been used [4]. Not surprisingly, researchers have begun to advocate wavelets for indexing [20] Chan Fu produced the breakthrough by producing a distance measure defined on wavelet coefficients which provably satisfies the lower bounding requirement in Eq. 2 [6] The work is based on a simple, but ....

Bradley, C. Brislawn, and T. Hopper, "The FBI Wavelet/Scalar Quantization Standard for Gray-scale Fingerprint Image Compression," Tech. Report LA-UR-93-1659, Los Alamos Nat'l Lab, Los Alamos, N.M. 1993.

....(TI) Massachusetts Institute of Technology (MIT) and SRI International [14] A. Quantization Coder A uniform mid tread quantizer with adaptive feedforward gain control [26] was modified to include some of the features of the wavelet scalar quantizer (WSQ) characteristic of Bradley and Brislawn [27]. Using their notation, let Z k be the bin width of the zero bin for the k th subband, and Q k be the uniform bin width of all other bins for the k th subband. Then quantization encoding of the k th subband amplitudes a k (n) returns the integer codes p k (n) # # # # # # a k (n) Z k ....

J. N. Bradley and C. M. Brislawn, "The FBI wavelet/scalar quantization standard for gray-scale fingerprint image compression," Technical Report LA-UR-93-1659, Los Alamos National Laboratory, Los Alamos, NM, 1993.

....fingerprints of a person may require 10 Mbyte of storage without any compression. With such a huge amount of data, the real time transmission of uncompressed fingerprints becomes impossible. The FBI has developed a fingerprint image compression algorithm called wavelet scalar quantization (WSQ) [22]. Table 5 lists the coding results of the 768 Theta 768 Fingerprint image from WSQ, SPIHT, and SLCCA. Again, SLCCA outperforms SPIHT by an average of 0.26 dB. At 0.444 bpp or 18:1 compression, SLCCA yields a PSNR of 35.65 dB as opposed to WSQ s 34.43 dB, corresponding to a 1.22 dB improvement. ....

J.N. Bradley, C.M. Brislawn, and T. Hopper, "The FBI wavelet/scalar quantization standard for grayscale fingerprint image compression," in Proceedings of SPIE Conference Visual Communications and Image Processing, 1993.

....wavelet basis is near optimal; the gain of using wavelet packet in coding is relatively smaller. To demonstrate the versatility of our wavelet packet SFQ coder, we benchmark against a 768 Theta 768 (eight bits resolution) fingerprint image using the FBI Wavelet Scalar Quantization (WSQ) standard [79, 80]. Bradley et al. reported a PSNR of 36:05 dB when coding the fingerprint image using the WSQ standard at 0:5882 b p (43366 bytes) 79] Using the wavelet packet SFQ algorithm, we get a PSNR of 37:30 dB at the same rate. The original fingerprint together with the wavelet packet decomposed and ....

.... packet SFQ coder, we benchmark against a 768 Theta 768 (eight bits resolution) fingerprint image using the FBI Wavelet Scalar Quantization (WSQ) standard [79, 80] Bradley et al. reported a PSNR of 36:05 dB when coding the fingerprint image using the WSQ standard at 0:5882 b p (43366 bytes) [79]. Using the wavelet packet SFQ algorithm, we get a PSNR of 37:30 dB at the same rate. The original fingerprint together with the wavelet packet decomposed and decoded fingerprint images at 0:5882 b p are shown in Figure 3.13. a) b) c) Figure 3.11 Original, wavelet packet decomposed and ....

J. N. Bradley, C. M. Brislawn, and T. Hopper, "The FBI wavelet/scalar quantization standard for gray-scale fingerprint image compression," in Proc. VCIP'93, Orlando, FL, April 1993.

....(PSNR [dB] of SPIHT and SLCCA on texture images at 0.4 bpp. Finally, we apply SLCCA to fingerprint image compression, which represents a very important issue demanding the best solution. The FBI has developed a fingerprint image compression algorithm called wavelet scalar quantization (WSQ) [8]. At 0.444 bpp or 18:1 compression, SLCCA yields a PSNR of 35.81 dB as opposed to WSQ s 34.43 dB, corresponding to a 1.38 dB Figure 4: 256 Theta 256 texture images. From left to right, top to bottom: fingerprint, sweater, grass, pig skin, raffia, sand, water and wool. ....

J.N. Bradley, C.M. Brislawn, and T. Hopper, "The FBI wavelet/scalar quantization standard for grayscale fingerprint image compression," in Proceedings of SPIE Conference Visual Communications and Image Processing, 1993.

....Table 2. Performance comparison (PSNR [dB] on Barbara image. Finally, we apply SLCCA to fingerprint image compression, which represents a very important issue demanding the best solution. The FBI has developed a fingerprint image compression algorithm called wavelet scalar quantization (WSQ) [7]. At 0.444 bpp or 18:1 compression, SLCCA yields a PSNR of 35.81 dB as opposed to WSQ s 34.43 dB, corresponding to 1.38 dB improvement. The original and reconstructed images from SLCCA at 0.444 bpp are shown in Fig. Note that there is little loss in visual quality. CONCLUSIONS A new image ....

J.N. Bradley, C.M. Brislawn, and T. Hopper, "The FBI wavelet/scalar quantization standard for grayscale fingerprint image compression," in Proceedings of SPIE Conference Visual Communications and Image Processing, 1993.

....with the wavelet packet decomposed and decoded Boat images at 0:3 b p are shown in Fig. 4. To demonstrate the versatility of our wavelet packet SFQ coder, we benchmark against a 768 Theta 768 (eight bits resolution) fingerprint image using the FBI Wavelet Scalar Quantization (WSQ) standard [15]. Brislawn et al. reported a PSNR of 36:05 dB when coding the fingerprint image using the WSQ standard at :5882 b p (43366 bytes) 15] Using the wavelet packet SFQ algorithm, we get a PSNR of 37:30 dB at the same rate. The original fingerprint together with the wavelet packet decomposed and ....

.... wavelet packet SFQ coder, we benchmark against a 768 Theta 768 (eight bits resolution) fingerprint image using the FBI Wavelet Scalar Quantization (WSQ) standard [15] Brislawn et al. reported a PSNR of 36:05 dB when coding the fingerprint image using the WSQ standard at :5882 b p (43366 bytes) [15]. Using the wavelet packet SFQ algorithm, we get a PSNR of 37:30 dB at the same rate. The original fingerprint together with the wavelet packet decomposed and decoded fingerprint images at 0:5882 b p are shown in Fig. 5. 6 Conclusions A new wavelet packet SFQ coder is presented in this paper. It ....

J. N. Bradley, C. M. Brislawn and T. Hopper, "The FBI wavelet/scalar quantization standard for gray-scale fingerprint image compression", Proc. VCIP'93, Orlando, FL, April, 1993.

No context found.

J. N. Bradley, C. M. Brislawn and T. Hopper, "The FBI wavelet/scalar quantization standard for gray-scale fingerprint image compression," Proc. SPIE Conf. on Visual Commun. Image Proceeding, Orlando, FL, Apr. 1993.

No context found.

J. N. Bradley, C. M. Brislawn, T. Hopper, "The FBI Wavelet/Scalar Quantization Standard for gray-scale fingerprint image compression," Los Alamos Tech. Rep. LA-UR-93-1659

No context found.

J.N. Bradley, C.M Brislawn, and T. Hopper, "The FBI wavelet/scalar quantization standard for grayscale fingerprint image compression," Proc. of SPIE, Visual Info. Proc. II, Orlando, FL, Apr. 1992, pp. 293-304.

Online articles have much greater impact   More about CiteSeer.IST   Add search form to your site   Submit documents   Feedback  

CiteSeer.IST - Copyright Penn State and NEC