Narendra Ahuja

Search results

• 2024

  LEARNING IMPLICIT REPRESENTATION FOR RECONSTRUCTING ARTICULATED OBJECTS

  Zhang, H., Li, F., Rawlekar, S. & Ahuja, N., 2024.

  Research output: Contribution to conference › Paper › peer-review

  • Implicit Representation 100%
  • Articulated Objects 100%
  • Articulated Object 100%
  • Semi-rigid 75%
  • Rigid Parts 50%
• 2013

  A topic model approach to represent and classify american football plays

  Varadarajan, J., Atmosukarto, I., Ahuja, S., Ghanem, B. & Ahuja, N., 2013.

  Research output: Contribution to conference › Paper › peer-review

  Open Access

  • Play Types 100%
  • American Football 100%
  • Large Data Set 50%
  • Average Accuracy 50%
  • Coaching 33%
• 2007

  Extracting texels in 2.1D natural textures

  Ahuja, N. & Todorovic, S., 2007.

  Research output: Contribution to conference › Paper › peer-review

  • Texel 100%
  • Natural Texture 100%
  • Learning Algorithm 100%
  • Image Segmentation 50%
  • Generative Model 50%

• Learning the taxonomy and models of categories present in arbitrary images

  Ahuja, N. & Todorovic, S., 2007.

  Research output: Contribution to conference › Paper › peer-review

  • Directed Acyclic Graph 100%
  • Segmentation Tree 100%
  • Recursive Embedding 100%
  • Small Clusters 50%
  • Multi-scale Segmentation 50%

• Phase based modelling of dynamic textures

  Ghanem, B. & Ahuja, N., 2007.

  Research output: Contribution to conference › Paper › peer-review

  • Dynamic Model 100%
  • Phase Coding 100%
  • Dynamic Texture 100%
  • Dynamical System 100%
  • Linear Dynamical Systems 75%
• 2006

  Dynamic textures synthesis as nonlinear manifold learning and traversing

  Liu, C. B., Lin, R. S., Ahuja, N. & Yang, M. H., 2006, p. 859-868. 10 p.

  Research output: Contribution to conference › Paper › peer-review

  • Complex Dynamics 100%
  • Nonlinear Manifold Learning 100%
  • Dynamic Texture Synthesis 100%
  • Linear Subspace 100%
  • Manifold Learning 100%
• 2004

  Scalable video coding using Wyner-Ziv codes

  Sehgal, A., Jagmohan, A. & Ahuja, N., 2004, p. 441-446. 6 p.

  Research output: Contribution to conference › Paper › peer-review

  • Video Frames 100%
  • Scalable Video Coding 100%
  • Wyner-Ziv 100%
  • wyner-ziv 100%
  • Communication Channels 50%

• Stereo registration using kernel density correlation

  Singh, M., Jagmohan, A. & Ahuja, N., 2004, p. 260-265. 6 p.

  Research output: Contribution to conference › Paper › peer-review

  • Computational Complexity 100%
  • Iterative Algorithm 100%
  • Convergence Property 100%
  • Continuous Domain 100%
  • Energy Minimisation 100%
• 2003

  A new collaborative infrastructure: SCAPE

  Hua, H., Brown, L. D., Gao, C. & Ahuja, N., 2003, p. 171-179. 9 p.

  Research output: Contribution to conference › Paper › peer-review

  • Multimodality 100%
  • Display Technology 100%
  • Application Programming Interface 100%
  • Generic Application 100%
  • Synthetic Environment 100%

• A state-free causal video encoding paradigm

  Sehgal, A., Jagmohan, A. & Ahuja, N., 2003, p. 605-608. 4 p.

  Research output: Contribution to conference › Paper › peer-review

  • Encoder 100%
  • Video Encoding 100%
  • video encoding 100%
  • wyner-ziv 100%
  • Codec 50%

• Easy calibration of a head-mounted projective display for augmented reality systems

  Gao, C., Hua, H. & Ahuja, N., 2003, p. 53-60. 8 p.

  Research output: Contribution to conference › Paper › peer-review

  • Calibration Method 100%
  • Augmented Reality System 100%
  • Head-mounted Projective Display 100%
  • Augmented Reality 100%
  • Instrument Calibration 80%

• Regression based bandwidth selection for segmentation using Parzen windows

  Singh, M. & Ahuja, N., 2003, p. 2-9. 8 p.

  Research output: Contribution to conference › Paper › peer-review

  Open Access

  • Regression-based Method 100%
  • Bandwidth Selection 100%
  • Bandwidth Parameter 100%
  • Parzen Window 100%
  • Convergent 100%
• 2002

  A testbed for precise registration, natural occlusion and interaction in an augmented environment using a head-mounted projective display (HMPD)

  Hua, H., Gao, C., Rolland, J. P., Brown, L. D. & Ahuja, N., 2002, p. 81-89. 9 p.

  Research output: Contribution to conference › Paper › peer-review

  • Occlusion 100%
  • Head-mounted Projective Display 100%
  • Augmented Environment 100%
  • Precise Registration 100%
  • Experimental Result 100%

• Face recognition using feature extraction based on independent component analysis

  Kwak, N., Choi, C. H. & Ahuja, N., 2002, p. II/337-II/340.

  Research output: Contribution to conference › Paper › peer-review

  • Feature Extraction 100%
  • Face Recognition 100%
  • Independent Component Analysis 100%
  • International Cooperative Ataxia Rating Scale (ICARS) 100%
  • Based Feature Extraction 100%

• Object contour tracking using graph cuts based active contours

  Xu, N. & Ahuja, N., 2002, p. III/277-III/280.

  Research output: Contribution to conference › Paper › peer-review

  • Graph Cuts 100%
  • Active Contour 100%
  • Object Contour Tracking 100%
  • Graph Cut 100%
  • Object Contour 100%

• Predictive encoding using coset codes

  Jagmohan, A., Sehgal, A. & Ahuja, N., 2002, p. II/29-II/32.

  Research output: Contribution to conference › Paper › peer-review

  • Side Information 100%
  • Box Application 100%
  • Lossy Channel 100%
  • Information Problem 100%
  • Compression Efficiency 100%
• 2001

  A new imaging model

  Aggarwal, M. & Ahuja, N., 2001, p. 82-89. 8 p.

  Research output: Contribution to conference › Paper › peer-review

  • Imaging Systems 100%
  • Gaussians 100%
  • Thin Lens 100%
  • Do Model 100%
  • Imaging Model 100%

• Face detection using large margin classifiers

  Yang, M. H., Roth, D. & Ahuja, N., 2001, p. 665-668. 4 p.

  Research output: Contribution to conference › Paper › peer-review

  • Theoretical Framework 100%
  • Image Processing 100%
  • Gray-Scale Images 100%
  • Support Vector Machine 100%
  • Face Detection 100%

• Frame interpolation using transmitted block-based motion vectors

  Yoon, S. C. & Ahuja, N., 2001, p. 856-859. 4 p.

  Research output: Contribution to conference › Paper › peer-review

  • Moving Boundary 100%
  • Block-based 100%
  • Frame Interpolation 100%
  • Motion Vector 100%
  • Motion Estimation 100%

• High capacity data embedding in the wavelet domain

  Sehgal, A., Jagmohan, A. & Ahuja, N., 2001, p. 979-982. 4 p.

  Research output: Contribution to conference › Paper › peer-review

  • Wavelet Domain 100%
  • High Capacity 100%
  • Data Embedding 100%
  • Embedding Data 100%
  • Data Capacity 100%

• High dynamic range panoramic imaging

  Aggarwal, M. & Ahuja, N., 2001, p. 2-9. 8 p.

  Research output: Contribution to conference › Paper › peer-review

  • High-resolution 100%
  • High Dynamic Range 100%
  • Panoramic Imaging 100%
  • Dynamic Range 100%
  • Surface (Surface Science) 100%

• On cosine-fourth and vignetting effects in real lenses

  Aggarwal, M., Hua, H. & Ahuja, N., 2001, p. 472-479. 8 p.

  Research output: Contribution to conference › Paper › peer-review

  • Cosine 100%
  • Pupil Aberration 100%
  • Vignetting Effect 100%
  • Irradiance 100%
  • Image Center 50%

• Selecting objects with freehand sketches

  Tan, K. H. & Ahuja, N., 2001, p. 337-344. 8 p.

  Research output: Contribution to conference › Paper › peer-review

  • Object Boundary 100%
  • Freehand Sketch 100%
  • Subproblem 100%
  • Image Processing 50%
  • Triangulation 50%

• Split aperture imaging for high dynamic range

  Aggarwal, M. & Ahuja, N., 2001, p. 10-17. 8 p.

  Research output: Contribution to conference › Paper › peer-review

  • High Dynamic Range 100%
  • Exposure Setting 100%
  • Dynamic Range 100%
  • Multiple Exposures 50%
  • Video Rate 50%
• 2000

  A scheme for joint watermarking and compression of video

  Dugad, R. & Ahuja, N., 2000, p. 80-83. 4 p.

  Research output: Contribution to conference › Paper › peer-review

  • Watermarking 100%
  • Digital Video 20%
  • Robust Watermark 20%

• Face recognition using Kernel eigenfaces

  Yang, M. H., Ahuja, N. & Kriegman, D., 2000, p. 37-40. 4 p.

  Research output: Contribution to conference › Paper › peer-review

  • Principal Coordinate Analysis (PCoA) 100%
  • Face Recognition 100%
  • Eigenface 100%
  • Component Analysis 100%
  • Principal Components 100%

• Recovering frontal-pose image from a single profile image

  Ma, J., Ahuja, N., Neti, C. & Senior, A. W., 2000, p. 243-246. 4 p.

  Research output: Contribution to conference › Paper › peer-review

  • Profile Image 100%
  • Pose Change 100%
  • Experimental Result 100%
  • Face Recognition 100%
  • Video Sequences 100%
• 1999

  Data partition method for parallel self-organizing map

  Yang, M. H. & Ahuja, N., 1999, p. 1929-1933. 5 p.

  Research output: Contribution to conference › Paper › peer-review

  • Parallel Implementation 100%
  • Partitioning Method 100%
  • Data Partitioning 100%
  • Parallel Self-organizing Maps 100%
  • Organizing Map 100%

• Face detection using a mixture of factor analyzers

  Yang, M. H., Ahuja, N. & Kriegman, D., 1999, p. 612-616. 5 p.

  Research output: Contribution to conference › Paper › peer-review

  • Mixture Model 100%
  • Face Image 100%
  • Human Face 100%
  • Lighting Conditions 100%
  • Different Lighting 100%

• Fast scheme for downsampling and upsampling in the DCT domain

  Dugad, R. & Ahuja, N., 1999, p. 909-913. 5 p.

  Research output: Contribution to conference › Paper › peer-review

  • Upsampling 100%
  • Downsampling 100%
  • DCT Domain 100%
  • DCT Coefficients 100%
  • Discrete Cosine Transform 100%

• Segmentation based denoising using multiple compaction domains

  Singh, M., Ishwar, P., Ratakonda, K. & Ahuja, N., 1999, p. 372-375. 4 p.

  Research output: Contribution to conference › Paper › peer-review

  • Denoising 100%
  • Denoising Algorithm 100%
  • Segmentation-based 100%
  • Multiple Compaction 100%
  • de-noising 100%

• Video denoising by combining Kalman and Wiener estimates

  Dugad, R. & Ahuja, N., 1999, p. 152-156. 5 p.

  Research output: Contribution to conference › Paper › peer-review

  • Wiener 100%
  • Temporal Processing 100%
  • Spatial Processing 100%
  • Denoising 100%
  • Scalar 100%
• 1998

  Detecting human faces in color images

  Yang, M. H. & Ahuja, N., 1998, p. 127-130. 4 p.

  Research output: Contribution to conference › Paper › peer-review

  • Color Image 100%
  • Human Face 100%
  • Skin Color 100%
  • Multivariate Analysis 33%
  • Property-based 25%

• Digital image watermarking: issues in resolving rightful ownership

  Ratakonda, K., Dugad, R. & Ahuja, N., 1998, p. 414-418. 5 p.

  Research output: Contribution to conference › Paper › peer-review

  • Watermarking Scheme 100%
  • Rightful Ownership 100%
  • Digital Image Watermarking 100%
  • Watermarking 66%
  • Popular 33%

• New wavelet-based scheme for watermarking images

  Dugad, R., Ratakonda, K. & Ahuja, N., 1998, p. 419-421. 3 p.

  Research output: Contribution to conference › Paper › peer-review

  • Wavelet Basis 100%
  • New Wavelets 100%
  • Watermarking 100%
  • Watermarked Image 100%
  • Transform Domain 100%

• POCS based adaptive image magnification

  Ratakonda, K. & Ahuja, N., 1998, p. 203-207. 5 p.

  Research output: Contribution to conference › Paper › peer-review

  • Edge Enhancement 100%
  • Iterative Process 100%
  • Iterative Scheme 100%
  • Adaptive Image 100%
  • Image Magnification 100%
• 1997

  Coding the displaced frame difference for video compression

  Ratakonda, K., Yoon, S. C. & Ahuja, N., 1997, p. 353-355. 3 p.

  Research output: Contribution to conference › Paper › peer-review

  • Video Compression 100%
  • Frame Difference 100%
  • Coding Scheme 100%
  • Motion Compensation 100%
  • Concentration Difference 100%

• Region-based video coding using a multiscale image segmentation

  Yoon, S. C., Ratakonda, K. & Ahuja, N., 1997, p. 510-513. 4 p.

  Research output: Contribution to conference › Paper › peer-review

  • Region-based 100%
  • Video Coding 100%
  • Motion Model 100%
  • Multiresolution Segmentation 100%
  • Multiscale 100%
• 1996

  Segmentation based reversible image compression

  Ratakonda, K. & Ahuja, N., 1996, p. 81-84. 4 p.

  Research output: Contribution to conference › Paper › peer-review

  • Image Compression 100%
  • Segmentation-based 100%
  • Lossless Compression 100%
  • Segmentation Information 66%
  • Grayscale Image 33%
• 1995

  Feature guided pixel matching and segmentation in motion image sequences

  Charan, R. & Ahuja, N., 1995, p. 277-282. 6 p.

  Research output: Contribution to conference › Paper › peer-review

  • Image Sequence 100%
  • Moving Objects 100%
  • Superpixel Segmentation 100%
  • Feature Trajectory 100%
  • Motion Image 100%

• Structure and motion estimation from dynamic silhouettes under perspective projection

  Joshi, T., Ahuja, N. & Ponce, J., 1995, p. 290-295. 6 p.

  Research output: Contribution to conference › Paper › peer-review

  • Local Structure 100%
  • Motion Estimation 100%
  • Perspective Projection 100%
  • Structure Estimation 100%
  • Real Image 50%
• 1994

  Towards structure and motion estimation from dynamic silhouettes

  Joshi, T., Ahuja, N. & Ponce, J., 1994, p. 166-171. 6 p.

  Research output: Contribution to conference › Paper › peer-review

  • Motion Estimation 100%
  • Structure Estimation 100%
  • Surface Features 50%
  • Image Features 50%
  • Local Structure 50%
• 1989

  Optimal motion and structure estimation

  Weng, J., Ahuja, N. & Huang, T. S., 1989, p. 144-152. 9 p.

  Research output: Contribution to conference › Paper › peer-review

  • Motion Estimation 100%
  • Nonlinear Problems 100%
  • Optimal Motion 100%
  • Optimal Structure 100%
  • Linear Algorithm 100%

• Path planning using a potential field representation

  Hwang, Y. & Ahuja, N., 1989, p. 569-575. 7 p.

  Research output: Contribution to conference › Paper › peer-review

  • Path Length 100%
  • Difficulty Level 100%
  • Potential Field 100%
  • Field Representation 100%
  • Path Planning 100%
• 1983

  EFFICIENT PLANAR EMBEDDING OF TREES FOR VLSI LAYOUTS.

  Ahuja, N., 1983, p. 28-32. 5 p.

  Research output: Contribution to conference › Paper › peer-review
• 1982

  MULTIPROCESSOR PYRAMIDS FOR BOTTOM-UP IMAGE ANALYSIS.

  Ahuja, N. & Swamy, S., 1982, p. 380-385. 6 p.

  Research output: Contribution to conference › Paper › peer-review

• THREE-DIMENSIONAL ROBOT VISION.

  Ahuja, N., Bridwell, N., Nash, C. & Huang, T. S., 1982, p. 206-213. 8 p.

  Research output: Contribution to conference › Paper › peer-review
• 1981

  APPROACHES TO RECURSIVE IMAGE DECOMPOSITION.

  Ahuja, N., 1981, p. 75-80. 6 p.

  Research output: Contribution to conference › Paper › peer-review