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Retrieved Entries: 66 [ยป Advanced search reports]

2013

  1. B. Andres, J. Yarkony, B. S. Manjunath, S. Kirchhoff, E. Turetken, C. C. Fowlkes and H. Pfister,
    “Segmenting Planar Superpixel Adjacency Graphs w.r.t. Non-planar Superpixel Affinity Graphs”,
    International Conference on Energy Minimization Methods in Computer Vision and Pattern Recognition, Aug. 2013.
    [abstract] [PDF] [BibTex]
    Abstract preview: We address the problem of segmenting an image into a previously unknown number of segments from the perspective of graph partitioning. Specifically, we consider minimum multicuts of superpixel affinit ... more

2012

  1. S. Karthikeyan, Swapna Joshi, B.S. Manjunath and Scott Grafton,
    “Intra-Class Multi-Output Regression based Subspace Analysis”,
    International Conference on Image Processing, Oct. 2012.
    [abstract] [PDF] [BibTex]
    Abstract preview: A common challenge when dealing with heterogenous tasks such as face expression analysis, face and object recognition is high dimensionality and extreme appearance variations within each class. To han ... more
  2. Vignesh Jagadeesh, B.S. Manjunath, James Anderson, Bryan Jones, Robert Marc and Steven Fisher,
    “Online Parameter Estimation in Dynamic Markov Random Fields for Image Sequence Analysis”,
    International Conference on Image Processing, Oct. 2012.
    [abstract] [PDF] [BibTex]
    Abstract preview: Markov Random Fields (MRF) have proven to be extremely useful models for efficient and accurate image segmentation.Recent literature points to an increased effort towards incorporating useful priors ( ... more
  3. Vignesh Jagadeesh, Min Chi Shih, B.S.Manjunath and K.Rose,
    “Scalable Tracing of Electron Micrographs by Fusing Top Down and Bottom Up Cues using Hypergraph Diffusion”,
    International Conference on Medical Image Computing and Computer Assisted Intervention, 2012.
    [abstract] [PDF] [BibTex]
    Abstract preview: A novel framework for robust 3D tracing in Electron Micrographs is presented. The proposed framework is built using ideas from hypergraph diusion, and achieves two main objectives. Firstly, the approa ... more

2011

  1. S. Karthikeyan, Utkarsh Gaur, B.S. Manjunath, and Scott Grafton,
    “Probabilistic subspace-based learning of shape dynamics modes for multi-view action recognition”,
    International Conference on Computer Vision (ICCV) Workshop PERHAPS 2011, Barcelona, Spain, Nov. 2011.
    [abstract] [PDF] [BibTex]
    Abstract preview: We propose a human action recognition algorithm by capturing a compact signature of shape dynamics from multi-view videos. First, we compute R transforms and its temporal velocity on action silhouett ... more
  2. S. Karthikeyan, M.E. Sargin, S. Joshi, B.S. Manjunath and S. Grafton,
    “Generalized subspace based high dimensional density estimation”,
    International Conference on Image Processing, Brussels, Belgium, Sep. 2011.
    [abstract] [PDF] [BibTex]
    Abstract preview: Our paper presents a novel high dimensional probability density estimation technique using any dimensionality reduction method. Our method first performs subspace reduction using any matrix factorizat ... more
  3. Goff Stephen A, Vaughn Matthew, McKay Sheldon, Lyons Eric, Stapleton Ann E, Gessler Damian, Matasci Naim, Wang Liya, Hanlon Matthew, Lenards Andrew, Muir Andy, Merchant Nirav, Lowry Sonya, Mock Stephen, Helmke Matthew, Kubach Adam, Narro Martha, Hopkins Nicole, Micklos David, Hilgert Uwe, Gonzales Michael, Jordan Chris, Skidmore Edwin, Dooley Rion, Cazes John, McLay Robert, Lu Zhenyuan, Pasternak Shiran, Koesterke Lars, Piel William H, Grene Ruth, Noutsos Christos, Gendler Karla, Feng Xin, Tang Chunlao, Lent Monica, Kim Seung-jin, Kvilekval Kristian, Manjunath B.S., Tannen Val, Stamatakis Alexandros, Sanderson Michael, Welch Stephen M, Cranston Karen, Soltis Pamela, Soltis Douglas, O'Meara Brian, Ane Cecile, Brutnell Tom, Kleibenstein Daniel J, White Jeffrey W, Leebens-Mack Jim, Donoghue Michael J, Spalding Edgar P, Vision Todd J, Myers Christopher R, Lowenthal David, Enquist Brian J, Boyle Brad, Akoglu Ali, Andrews Greg, Ram Sudha, Ware Doreen, Stein Lincoln, Stanzione Dan ,
    “The iPlant Collaborative: Cyberinfrastructure for Plant Biology”,
    Frontiers in Plant Science, vol. 2, no. 00034, Jul. 2011.
    [abstract] [PDF] [BibTex]
    Abstract preview: The iPlant Collaborative (iPlant) is a United States National Science Foundation (NSF) funded project that aims to create an innovative, comprehensive, and foundational cyberinfrastructure in support ... more
  4. M.E. Sargin, A. Altinok, B.S. Manjunath and K. Rose,
    “Variable Length Open Contour Tracking Using a Deformable Trellis”,
    IEEE Transactions on Image Processing, vol. 20, no. 4, pp. 1023-1035, Apr. 2011.
    [abstract] [PDF] [BibTex]
  5. A. Peck, M.E. Sargin, N.E. LaPointe, K. Rose, B.S. Manjunath, S.C. Feinstein, and L. Wilson,
    “Tau Isoform-specific Modulation of Kinesin-driven Microtubule Gliding Rates and Trajectories As Determined With Tau-stabilized Microtubules”,
    Cytoskeleton, vol. 68, pp. 44-55, Jan. 2011.
    [abstract] [PDF] [BibTex]
    Abstract preview: We have utilized tau-assembled and tau-stabilized microtubules (MTs), in the absence of taxol, to investigate the effects of tau isoforms with three and four MT binding repeats upon kinesin-driven MT ... more

2001

  1. Z. He, S.Mitra,
    “A Unified Rate-Distortion Analysis Framework for Transform Coding”,
    IEEE Transactions on Circuits and Systems for Video Technology, vol. 11, no. 12, pp. 1221-1236, Dec. 2001.
    [abstract] [PDF] [BibTex]
    Abstract preview: In our previous work, we have developed a rate-dis-tortion (R-D) modeling framework H.263 video coding by introducing the new concepts of characteristic rate curves and rate curve decomposition. In th ... more
  2. L. Lucchese and S. K. Mitra,
    “Color segmentation through independent anisotropic diffusion of complex chromaticity and lightness”,
    IEEE International Conference on Image Processing (ICIP 2001), Thessalonika, Greece, Sep. 2001.
    [abstract] [PDF] [BibTex]
    Abstract preview: This paper presents a new technique based on anisotropic diffu-sion for segmenting color images. This operation is accomplished through two independent anisotropic diffusion processes: one in-volving ... more
  3. L. Lucchese and S. K. Mitra,
    “Color segmentation based on separate anisotropic diffusion of chromatic and achromatic channels”,
    IEEE Proceedings: Vision, Image, and Signal Processing, Sep. 2001.
    [abstract] [PDF] [BibTex]
    Abstract preview: This paper presents a new technique for segmenting images only on the basis of color information. It is shown how segmentation can bene t from splitting color signals into chromatic and achromatic cha ... more
  4. Zhihai He, Yong Kwan Kim, and Sanjit K. Mitra,
    “Rho domain source modeling and rate control for video encoding and transmission”,
    ICASSP 2001, May. 2001.
    [abstract] [PDF] [BibTex]
    Abstract preview: In this work, the coding bit rate R is considered as a function of Rho which is the percentage of zeros among the quantized DCT coefficients. We discover that the rate function R(Rho) has some very in ... more
  5. Zhihai He and Sanjit K. Mitra,
    “A novel linear source model and a unified rate control algorithm for H.263/MPEG-2/ MPEG-4”,
    ICASSP 2001, May. 2001.
    [abstract] [PDF] [BibTex]
    Abstract preview: Let Rho be the percentage of zeros among the quantized transform coefficients. We discover that, in any typical video coding systems, there is always a strictly linear relationship between Rho and the ... more
  6. Zhihai He, Yong Kwan Kim, and Sanjit K. Mitra,
    “A novel source modeling framework for bit rate and picture quality control in DCT visual coding”,
    Picture Coding Symposium, South Korea, Apr. 2001.
    [abstract] [PDF] [BibTex]
    Abstract preview: We present a novel source modeling framework in this paper. With the proposed source model, we can estimate the rate-distortion(R-D) curve before quantization and coding for DCT-based still images an ... more
  7. L. Lucchese,
    “A frequency domain technique based on energy radial projections for robust estimation of global 2D affine transformations”,
    Computer Vision and Image Understanding, vol. 81, no. 1, pp. 72-116, Academic Press, Jan. 2001.
    [abstract] [PDF] [BibTex]
  8. Michael S. Moore, John M. Foley, and Sanjit K. Mitra,
    “A comparison of the detectability and annoyance value of embedded MPEG-2 artifacts of different type, size and duration”,
    SPIE, Human Vision and Electronic Imaging VI, vol. 4299, San Jose, CA, Jan. 2001.
    [abstract] [PDF] [BibTex]
    Abstract preview: One fundamental problem in predicting the subjective quality of a degraded video is that the perceived quality depends on the properties of the video itself, or the context of the degradation. In th ... more

2000

  1. Tian-Hu Yu, Zhihai He, and S. K. Mitra,
    “A novel coding scheme for wavelet image compression”,
    34th Asilomar Conference on Signals, Systems, and Computers, Oct. 2000.
    [abstract] [PDF] [BibTex]
    Abstract preview: In this papaer, we propose a very simple image compression scheme, The proposed coding scheme employs the multi-level dyadic wavelet decompositoin, linear quantization with a proper dead zone, and th ... more
  2. Zhihai He, Tian-Hu Yu, and S. K. Mitra,
    “Fast and accurate rate prediction and picture quality control for wavelet image coding”,
    34th Asilomar Conference on Signals, Systems, and Computers, Oct. 2000.
    [abstract] [PDF] [BibTex]
    Abstract preview: By introducing the concepts of characteristic rate curves and rate curve decomposition, a novel framework for rate-distortion (R-D) analysis and source modeling is developed in this work. With this ... more
  3. Zhihai He, Tian-Hu Yu, and S. K. Mitra,
    “Fast image coding using blockwise binary classification and trellis coded quantization”,
    34th Asilomar Conference on Signals, Systems, and Computers, Oct. 2000.
    [abstract] [PDF] [BibTex]
    Abstract preview: With blockwise binary classification and data partitioning, we convert the image subbands to the type of data for which the trellis coded quantization(TCQ) has the best quantization performance. Comp ... more
  4. L. Lucchese and S. K. Mitra,
    “Filtering color images in the xyY color space”,
    IEEE International Conference on Image Processing, vol. 3, pp. 500-533, Vancouver, B.C., Canada, Sep. 2000.
    [abstract] [BibTex]
  5. M. S. Moore and S. K. Mitra,
    “Statistical Threshold Design for the Two-State Signal-Dependent Rank Order Mean Filter”,
    IEEE International Conference on Image Processing (ICIP 2000), vol. 1, pp. 904-907, Vancouver, Canada, Sep. 2000.
    [abstract] [PDF] [BibTex]
    Abstract preview: The signal-dependent rank order mean (SD-ROM) filter is effective at removing high levels of impulse noise from 2- D scalar-valued signals. Excellent results have been presented for both a two-state a ... more
  6. S. Hatipoglu, S.K. Mitra, and N. Kingsbury,
    “Image texture description using complex wavelet transform”,
    IEEE International Conference on Image Processing , vol. 2, pp. 530-533, Vancouver, B.C., Canada, Sep. 2000.
    [abstract] [BibTex]
  7. Tian-Hu Yu, Zhihai He, and S. K. Mitra,
    “Simple and efficient wavelet image compression”,
    IEEE International Conference on Image Processing (ICIP 2000), Vancouver, Canada, Sep. 2000.
    [abstract] [BibTex]
  8. Zhihai He, Tian-Hu Yu, and S. K. Mitra,
    “Blockwise zero mapping image coding”,
    IEEE International Conference on Image Processing (ICIP 2000), Vancouver, Canada, Sep. 2000.
    [abstract] [PDF] [BibTex]
    Abstract preview: Uniformly quantized wavelet coefficients are first partitioned into multiscale blocks. Each block is classified either as an all-zero block or a non-zero block. A new method called zero mapping is pr ... more
  9. Zhihai He and S. K. Mitra,
    “Optimum quantization error feedback filters for wavelet image coding”,
    IEEE International Conference on Image Processing (ICIP 2000), Vancouver, Canada, Sep. 2000.
    [abstract] [PDF] [BibTex]
    Abstract preview: In wavelet image compression, all information loss occurs during quantization. Based on the property of bi-orthogonal wavelets, optimal 2-D quantization error feedback filters are designed to reduce ... more
  10. Michael S. Moore, John M. Foley, and Sanjit K. Mitra,
    “Detectability and Annoyance Value of MPEG-2 Artifacts Inserted into Uncompressed Video Sequences”,
    SPIE, Human Vision and Electronic Imaging V, vol. 3959, pp. 99-110, San Jose, CA, Jan. 2000.
    [abstract] [PDF] [BibTex]
    Abstract preview: Many approaches have been proposed recently for estimating the perceived fidelity of digitally compressed and reconstructed video clips. Several metrics rely on the accurate estimation of detection ... more
  11. Tian-Hu Yu, Zhihai He, and S. K. Mitra,
    “A Simple and efficient wavelet image compression”,
    IEEE Transaction on Circuits and Systems on Video Technology, Jan. 2000.
    [abstract] [BibTex]

1999

  1. L. Lucchese, S. K. Mitra,
    “Advances in color image segmentation”,
    Seamless Interconnection for Universal Services. Global Telecommunications Conference. GLOBECOM'99, vol. 4, no. 6, pp. 2038-44, Rio de Janeireo, Brazil, Dec. 1999.
    [abstract] [PDF] [BibTex]
    Abstract preview: Segmentation is the low-level operation in image processing which partiotions an image into disjoint and homogeneous regions. In this paper, we consider segmentation of color images, a task which pla ... more
  2. L. Lucchese and S. K. Mitra,
    “Unsupervised low frequency driven segmentation of color images”,
    IEEE International Conference on Image Processing, vol. 3, pp. 240-244, Kobe, Japan, Oct. 1999.
    [abstract] [PDF] [BibTex]
    Abstract preview: This paper presents an algorithm for unsupervised segmentation of color images. The main idea behind it is the use of the low-frequency content of images which allows for smoothing of segments and sha ... more
  3. R. Gandhi and S. K. Mitra,
    “Optimal quantization in non-orthogonal subband coders”,
    Asilomar Conference on Circuits, Systems, and Computers, pp. 1188-1192, Pacific Grove, CA, Oct. 1999.
    [abstract] [PDF] [BibTex]
    Abstract preview: It is well known that mean square error(MSE) is not preserved under non-orthogonal transformations. This poses a significant challenge to quantize the subband signals in coders that involve non-ortho ... more
  4. R. Gandhi, S. K. Mitra,
    “An efficient top-down approach for the design of tree-structured orthonormal filter banks”,
    Asilomar Conference on Circuits, Systems, and Computers, pp. 1627-1631, Pacific Grove, CA, USA, Oct. 1999.
    [abstract] [PDF] [BibTex]
    Abstract preview: Wavelet and tree-structured filter bank based coding schemes find application in a number of image coding algorithms. The efficiency of such coding schemes can be enhanced further by adapting the par ... more
  5. R. Gandhi and S. K. Mitra,
    “Design of optimal orthogonal tree-structured filter banks”,
    Midwest Symposium on Circuits & Systems , pp. 1057-1060, Las Cruces, NM, Aug. 1999.
    [abstract] [PDF] [BibTex]
    Abstract preview: A number of techniques have been proposed for the design of tree-structured filter banks matched to the statistics of the input signal. Amongst all of the porposed techniques, a top-down design appr ... more
  6. S.Hatipoglu, S.K.Mitra and N. Kingsbury,
    “Texture classification using dual-tree complex wavelet transform”,
    Seventh International Conference on Image Processing and Its Applications, vol. 1, no. 2, pp. 344-7, Manchester, UK, Jul. 1999.
    [abstract] [PDF] [BibTex]
    Abstract preview: A new texture feature extraction method utilizing dual tree complex wavelet transform (DT-CWT) is introduced. The complex wavelet. transform is a recently developed tool that uses a dual tree of wavel ... more
  7. Debargha Mukherjee, and Sanjit K. Mitra,
    “On the robustness of vector set partitioning image coders to channel errors”,
    IEEE International Symposium on Circuits and Systems, Orlando, Florida, Jun. 1999.
    [abstract] [PDF] [BibTex]
    Abstract preview: A vector enhancement of Said and Pearlman's Set Partitioning in Hierarchical Trees (SPIHT) methodology, named VSPIHT, has recently been proposed for embedded wavelet image compression. A major ad ... more
  8. L. Lucchese and S. K. Mitra,
    “Unsupervised segmentation of color images based on k-means clustering in the chromaticity plane”,
    IEEE Workshop on Content-based Access of Image and Video Libraries (CBAIVL'99), pp. 74-78, Fort Collins, CO, Jun. 1999.
    [abstract] [PDF] [BibTex]
    Abstract preview: In this work, we present an original technique for unsupervised segmentation of color images which is based on an extension, for an use in the u' v' chromaticity diagram, of the well-known ... more
  9. Michael S. Moore, Moncef Gabbouj, and Sanjit K. Mitra,
    “Vector SD-ROM Filter for Removal of Impulse Noise from Color Images”,
    EURASIP: DSP for Multimedia Communications and Services (ECMCS), Krakow, Poland, Jun. 1999.
    [abstract] [PDF] [BibTex]
    Abstract preview: One well-studied image processing task is the remova l of impulse noise from images. Impulse noise can be introduced during image capture, during transmission, or during storage. The signal-dependent ... more
  10. Debargha Mukherjee, and Sanjit K. Mitra,
    “Generalized variable dimensional set partitioning for embedded wavelet image compression”,
    IEEE International Conference on Acoustics, Speech, and Signal Processing, Phoenix, Arizona, Mar. 1999.
    [abstract] [PDF] [BibTex]
    Abstract preview: vector enhancement of Said and Pearlman's Set Partitioning in Hierarchical Trees (SPIHT) methodology, named VSPIHT, has recently been proposed for embedded wavelet image compression. While the VS ... more
  11. Michael S. Moore and Sanjit K. Mitra,
    “Performance Analysis of the Two-State Signal-Dependent Rank Order Mean Filter”,
    SPIE Nonlinear Image Processing X, vol. 3646, pp. 56-66, San Jose, CA, Jan. 1999.
    [abstract] [PDF] [BibTex]
    Abstract preview: One well-studied image processing task is the removal of impulse noise from images. Impulse noise can be introduced during image capture, during transmission, or during storage. The signal-dependent ... more

1998

  1. D. Mukherjee and Sanjit K. Mitra,
    “Arithmetic coded vector set-partitioning with classified tree-multistage VQ for color image coding”,
    IEEE Workshop on Multimedia Signal Processing, pp. 444-49, Redondo Beach, California, Dec. 1998.
    [abstract] [PDF] [BibTex]
    Abstract preview: A vector extension of the Set Partitioning in Hierarchical Trees (SPIHT) algorithm, named vector-SPIHT (VSPIHT), using trained classified successive refinement VQ, has recently been proposed. In this ... more
  2. R. Gandhi and S. K. Mitra,
    “Design of two-channel low delay perfect reconstruction filter banks”,
    Asilomar Conference on Signals, Systems and Computers, pp. 1655-1699, Pacific Grove, CA, Nov. 1998.
    [abstract] [PDF] [BibTex]
    Abstract preview: We develop a new approach for the design of two-channel perfect reconstruction (PR) filter banks that yield low system delay. The proposed design procedure is based on the ideaa of starting with triv ... more
  3. Debargha Mukherjee and Sanjit K. Mitra,
    “Vector set-partitioning with successive refinement Voronoi lattice VQ for embedded wavelet image coding”,
    IEEE International Conference on Image Processing, vol. 1, pp. 107-11, Chicago, Illinois, Oct. 1998.
    [abstract] [PDF] [BibTex]
    Abstract preview: While lattice vector quantization (LVQ) can solve the complexity problem of LBG based vector quantizers, and also yield very general codebooks, a single stage lattice VQ, when applied to high variance ... more
  4. R. Gandhi and S. K. Mitra,
    “A new approach to the design of two-channel perfect reconstruction filter banks”,
    5th IEEE International Conference on Electronics, Circuits, and Systems, pp. 405-408, Lisbon, Portugal, Sep. 1998.
    [abstract] [PDF] [BibTex]
    Abstract preview: In this paper, we propose a new technique for the design of two-channel perfect reconstruction filter banks (PRFBs). The proposed design approach is generic, and can be applied to the design of both ... more
  5. C. Chandra, M. S. Moore and S. K. Mitra,
    “An Efficient Method for the Removal of Impulse Noise from Speech and Audio Signals”,
    IEEE International Symposium on Circuits and Systems (ISCAS), vol. 4, pp. 206-208, Monterey, CA, Jun. 1998.
    [abstract] [PDF] [BibTex]
    Abstract preview: A computationally efficient algorithm is proposed to remove noise impulses from speech and audio signals while retaining its features and tonal quality. The proposed method is based on the SD-ROM(Sig ... more
  6. Debargha Mukherjee and Sanjit K. Mitra,
    “Vector set partitioning with classified successive refinement VQ for embedded wavelet image coding”,
    IEEE International Symposium on Circuits and Systems, vol. 4, pp. 25-28, Monterey, California, Jun. 1998.
    [abstract] [PDF] [BibTex]
    Abstract preview: Set Partitioning in Hierarchical Trees (SPIHT), proposed by Said and Pearlman 1, is generally regarded as a very efficient wavelet-based still image compression scheme. The algorithm uses an efficient ... more
  7. R. Gandhi and S. K. Mitra,
    “A computationally efficient design of two-band QMF banks based on the frequency-sampling approach”,
    IEEE International Symposium on Circuits and Systems (ISCAS'98), pp. 421-424, Monterey, CA, Jun. 1998.
    [abstract] [PDF] [BibTex]
    Abstract preview: Two new methods for computationally efficient design of two-channel quadrature mirror filter(QMF) banks based on the frequency sampling approach are introduced. In the proposed approach, the number of ... more
  8. D. Mukherjee, Y. Deng and S. K. Mitra,
    “A region-based video coder using edge flow segmentation and hierarchical affine region matching”,
    SPIE Visual Communications and Image Processing, vol. 3309, pp. 338-49, 1998.
    [abstract] [PDF] [BibTex]
    Abstract preview: The essential motivations, towards an object-based approach to video coding, include possible object-based interactivity and functionality, and the elimination of blocking or mosquito artifacts that ... more

1997

  1. N. Strobel, S. K. Mitra and B. S. Manjunath,
    “Model-based detection and correction of corrupted wavelet coefficients”,
    IEEE International Conference on Image Processing, vol. 1, pp. 925-928, Santa Barbara, CA, USA, Oct. 1997.
    [abstract] [PDF] [BibTex]
    Abstract preview: Image decomposition based on the discrete wavelet transform(DWT) has been proposed for efficient storage and progressive transmission of images for visual browsing in digital image libraries. Although ... more
  2. Reinhard Bernstein, Michael S. Moore and Sanjit K. Mitra,
    “Adjustable Quadratic Filters for Image Enhancement”,
    IEEE International Conference on Image Processing (ICIP), vol. 1, pp. 287-290, Santa Barbara, CA, Oct. 1997.
    [abstract] [PDF] [BibTex]
    Abstract preview: We propose a new class of mapping-based nonlinear quadratic Volterra filters for image enhancement. The input signal is mapped prior to filtering by a emoryless one-to-one nonlinear mapping function. ... more
  3. Michael S. Moore, Reinhard Bernstein and Sanjit K. Mitra,
    “A Generalization of the Teager Algorithm”,
    IEEE Workshop on Nonlinear Signal Processing (NSIP), Michigan, Sep. 1997.
    [abstract] [PDF] [BibTex]
    Abstract preview: The 1-D Teager algorithm can be used to perform mean weighted highpass filtering with relatively few operations. We propose a generalization of the Teager algorithm. The modified algorithm allows us t ... more
  4. N. Strobel, S. K. Mitra and B. S. Manjunath,
    “Progressive Resolution Transmission and Lossless Compression of Color Images for Digital Image Libraries”,
    13th International Conference on Digital Signal Processing, vol. 1, pp. 435-438, Santorini, Greece, Jul. 1997.
    [abstract] [PDF] [BibTex]
    Abstract preview: Progressive-resolution transmission is of significant practical importance for online image libraries. When combined with reversible image compression, it provides a particularly promising framework w ... more
  5. R. Gandhi and S. K. Mitra,
    “Aliasing cancelation in block filters and periodically time varying systems: a time-domain approach”,
    IEEE International Symposium on Circuits and Systems (ISCAS'97), pp. 2421-2424, Hong Kong, Jun. 1997.
    [abstract] [PDF] [BibTex]
    Abstract preview: A block filter, in general, is a linear, periodic and time-varying (LPTV) system. Under certain conditions satisfied by the transfer function matrix of the filter, the system has an alias free operat ... more

1995

  1. T. Wiegand, M. Lightstone, T. G. Campbell and S. K. Mitra,
    “A Rate-Constrained Encoding Strategy for H.263 Video Compression”,
    International Symposium on Multimedia Communication and Video Coding, Brooklyn, NY, Oct. 1995.
    [abstract] [BibTex]
  2. T. Wiegand, M. Lightstone, T.G. Campbell and S. K..Mitra,
    “Efficient Mode Selection for Block-Based Motion Compensated Video Coding”,
    IEEE International Conference on Image Processing, pp. 559-562, Washington, D.C., Oct. 1995.
    [abstract] [BibTex]
  3. I-S Lin and S. K..Mitra,
    “Efficient 2-D FIR Filtering Algorithms Based on Overlapped Block Structure”,
    38th Midwest Symposium on Circuits and Systems, Rio de Janeiro, Brazil, Aug. 1995.
    [abstract] [BibTex]
  4. S. Thurnhofer and S. K. Mitra,
    “Designing Quadratic Volterra Filters for Nonlinear Edge Enhancement”,
    International Conference on Digital Signal Processing, pp. 320-325, Limassol, Cyprus, Jun. 1995.
    [abstract] [BibTex]
  5. S. K. Mitra, S. Thurnhofer, M. Lightstone and N. Strobel,
    “Two-Dimensional Teager Operators and their Image Processing Applications”,
    IEEE Workshop on Nonlinear Signal & Image Processing, pp. 959-962, Halkidiki, Greece, Jun. 1995.
    [abstract] [BibTex]
  6. S. Thurnhofer and S. K. Mitra,
    “Quadratic Volterra Filters with Mean-Weighted Highpass Characteristics”,
    IEEE Workshop on Nonlinear Signal & Image Processing, pp. 368-371, Halkidiki, Greece, Jun. 1995.
    [abstract] [BibTex]
  7. E. Abreun and S. K. Mitra,
    “Signal-Dependent Rank-Ordered Mean (SD-ROM) Filters for Removal of Impulses from Highly Corrupted Images”,
    IEEE International Conference on Acoustics, Speech & Signal Processing, pp. 2371-2374, Detroit, MI, May. 1995.
    [abstract] [BibTex]
  8. M. Lightstone, E. Abreu, S. K. Mitra and K. Arakawa,
    “State-Conditioned Rank-Ordered Filtering for Removing Impulse Noise in Images”,
    IEEE International Symposium on Circuits & Systems, pp. 957-960, Seattle, WA, May. 1995.
    [abstract] [BibTex]
  9. M. Lightstone, S. K. Mitra and K. Rose,
    “Locally Optimal Codebook Design for Quadtree-Based Vector Quantization”,
    IEEE International Conference on Acoustics, Speech & Signal Processing, pp. 2479-2482, Detroit, MI, May. 1995.
    [abstract] [BibTex]
  10. S. Bagchi and S. K. Mitra,
    “An Efficient Algorithm for DTMF Decoding Using the Subband NDFT”,
    IEEE International Symposium on Circuits & Systems, pp. 1936-1939, Seattle, WA, May. 1995.
    [abstract] [BibTex]
  11. C. D. Creusere and S. K. Mitra,
    “A Simple Method for Designing High-Quality Prototype Filters for M-band Pseudo QMF Banks”,
    IEEE Trans. on Signal Processing, vol. 43, pp. 1005-1007, Apr. 1995.
    [abstract] [BibTex]
  12. A. Hossen, U. Heute, O. Shentov and S. K. Mitra,
    “Subband DFT - Part II: Accuracy Complexity and Applications”,
    Signal Processing, vol. 42, no. 3, pp. 279-294, Feb. 1995.
    [abstract] [BibTex]
  13. O. Shentov, S. K. Mitra, A. Hossen and U. Heute,
    “Subband DFT - Part I: Definition Interpretation and Extensions”,
    Signal Processing, vol. 42, no. 3, pp. 261-278, Feb. 1995.
    [abstract] [BibTex]
  14. S. Bagchi and S. K. Mitra,
    “Nonseparable 2D FIR Filter Design Using Nonuniform Frequency Sampling”,
    IS&T/SPIE Symposium on Electronic Imaging: Image and Video Processing III, pp. 104-115, San Jose, Feb. 1995.
    [abstract] [PDF] [BibTex]
    Abstract preview: We propose a nonuniform frequency sampling method for 2-D FIR filter design based on the concept of the nonuniform discrete Fourier transform(NDFT). The NDFT of a 2-D sequence is defined as a sequenc ... more