Ravindra Kumar Purwar

Publication Activity (10 Years)

Years Active: 2009-2023
Publications (10 Years): 14

Top Topics

Character Recognition

Encryption Scheme

Motion Estimation

Top Venues

Multim. Tools Appl.

Signal Image Video Process.

J. Electronic Imaging

J. Inf. Technol. Res.

Publications

Bhanu Prakash Sharma, Ravindra Kumar Purwar
An augmented mammogram image dataset and its performance analysis for various classification models. Multim. Tools Appl. 82 (21) (2023)
Ruchika Lalit, Ravindra Kumar Purwar
Crowd Abnormality Detection Using Optical Flow and GLCM-Based Texture Features. J. Inf. Technol. Res. 15 (1) (2022)
Ruchika, Ravindra Kumar Purwar, Shailesh Verma, Anchal Jain
Crowd abnormality detection in video sequences using supervised convolutional neural network. Multim. Tools Appl. 81 (4) (2022)
Ruchika Lalit, Ravindra Kumar Purwar, Shailesh Verma, Anchal Jain
Correction to: Crowd abnormality detection in video sequences using supervised convolutional neural network. Multim. Tools Appl. 81 (22) (2022)
Kirtee Panwar, Ravindra Kumar Purwar, Garima Srivastava
A Fast Encryption Scheme Suitable for Video Surveillance Applications Using SHA-256 Hash Function and 1D Sine-Sine Chaotic Map. Int. J. Image Graph. 21 (2) (2021)
Varun Srivastava, Ravindra Kumar Purwar
Classification of CT Scan Images of Lungs Using Deep Convolutional Neural Network with External Shape-Based Features. J. Digit. Imaging 33 (1) (2020)
Kirtee Panwar, Ravindra Kumar Purwar, Anchal Jain
Cryptanalysis and Improvement of a Color Image Encryption Scheme Based on DNA Sequences and Multiple 1D Chaotic Maps. Int. J. Bifurc. Chaos 29 (8) (2019)
Varun Srivastava, Ravindra Kumar Purwar, Anchal Jain
A dynamic threshold-based local mesh ternary pattern technique for biomedical image retrieval. Int. J. Imaging Syst. Technol. 29 (2) (2019)
Madhuri Yadav, Ravindra Kumar Purwar, Mamta Mittal
Handwritten Hindi character recognition: a review. IET Image Process. 12 (11) (2018)
Madhuri Yadav, Ravindra Kumar Purwar
Hindi handwritten character recognition using oriented gradients and Hu-geometric moments. J. Electronic Imaging 27 (05) (2018)
Kirtee Panwar, Ravindra Kumar Purwar, Anchal Jain
Cryptanalysis and improvement of an image encryption scheme using combination of one-dimensional chaotic maps. J. Electronic Imaging 27 (05) (2018)
Varun Srivastava, Ravindra Kumar Purwar
A Five-Level Wavelet Decomposition and Dimensional Reduction Approach for Feature Extraction and Classification of MR and CT Scan Images. Appl. Comput. Intell. Soft Comput. 2017 (2017)
Shaifali Madan Arora, Navin Rajpal, Ravindra Kumar Purwar
A new fast motion estimation algorithm using adaptive size diamond pattern search with early search termination. Int. J. Comput. Vis. Robotics 7 (6) (2017)
Ravindra Kumar Purwar
Enhanced dynamic pattern search algorithm with weighted search points for fast motion estimation. Signal Image Video Process. 11 (6) (2017)
Mayank Sharma, Navin Rajpal, B. V. Ramana Reddy, Ravindra Kumar Purwar
Normalised LCS-based method for indexing multidimensional data cube. Int. J. Intell. Inf. Database Syst. 7 (2) (2013)
Ravindra Kumar Purwar, Navin Rajpal
A Multilevel Distortion Measure for Block Based Motion estimation using integral Frames. J. Circuits Syst. Comput. 22 (2) (2013)
Ravindra Kumar Purwar, Navin Rajpal
A fast block motion estimation algorithm using dynamic pattern search. Signal Image Video Process. 7 (1) (2013)
Ravindra Kumar Purwar, Nupur Prakash, Navin Rajpal
A matching criterion for motion compensation in the temporal coding of video signal. Signal Image Video Process. 5 (2) (2011)
Ravindra Kumar Purwar, Nupur Prakash, Navin Rajpal
A Quality Based Motion Estimation Criterion for Temporal Coding of Video. ICAPR (2009)