Ravindra Kumar Purwar

According to our database, Ravindra Kumar Purwar authored at least 19 papers between 2009 and 2023.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2023

An augmented mammogram image dataset and its performance analysis for various classification models.

Bhanu Prakash Sharma, Ravindra Kumar Purwar

Multim. Tools Appl., September, 2023

2022

Crowd abnormality detection in video sequences using supervised convolutional neural network.

Ruchika, Ravindra Kumar Purwar, Shailesh Verma, Anchal Jain

Multim. Tools Appl., 2022

Correction to: Crowd abnormality detection in video sequences using supervised convolutional neural network.

Ruchika Lalit, Ravindra Kumar Purwar, Shailesh Verma, Anchal Jain

Multim. Tools Appl., 2022

Crowd Abnormality Detection Using Optical Flow and GLCM-Based Texture Features.

Ruchika Lalit, Ravindra Kumar Purwar

J. Inf. Technol. Res., 2022

2021

A Fast Encryption Scheme Suitable for Video Surveillance Applications Using SHA-256 Hash Function and 1D Sine-Sine Chaotic Map.

Kirtee Panwar, Ravindra Kumar Purwar, Garima Srivastava

Int. J. Image Graph., 2021

2020

Classification of CT Scan Images of Lungs Using Deep Convolutional Neural Network with External Shape-Based Features.

Varun Srivastava, Ravindra Kumar Purwar

J. Digit. Imaging, 2020

2019

A dynamic threshold-based local mesh ternary pattern technique for biomedical image retrieval.

Varun Srivastava, Ravindra Kumar Purwar, Anchal Jain

Int. J. Imaging Syst. Technol., 2019

Cryptanalysis and Improvement of a Color Image Encryption Scheme Based on DNA Sequences and Multiple 1D Chaotic Maps.

Kirtee Panwar, Ravindra Kumar Purwar, Anchal Jain

Int. J. Bifurc. Chaos, 2019

2018

Hindi handwritten character recognition using oriented gradients and Hu-geometric moments.

Madhuri Yadav, Ravindra Kumar Purwar

J. Electronic Imaging, 2018

Cryptanalysis and improvement of an image encryption scheme using combination of one-dimensional chaotic maps.

Kirtee Panwar, Ravindra Kumar Purwar, Anchal Jain

J. Electronic Imaging, 2018

Handwritten Hindi character recognition: a review.

Madhuri Yadav, Ravindra Kumar Purwar, Mamta Mittal

IET Image Process., 2018

2017

Enhanced dynamic pattern search algorithm with weighted search points for fast motion estimation.

Ravindra Kumar Purwar

Signal Image Video Process., 2017

A new fast motion estimation algorithm using adaptive size diamond pattern search with early search termination.

Shaifali Madan Arora, Navin Rajpal, Ravindra Kumar Purwar

Int. J. Comput. Vis. Robotics, 2017

A Five-Level Wavelet Decomposition and Dimensional Reduction Approach for Feature Extraction and Classification of MR and CT Scan Images.

Varun Srivastava, Ravindra Kumar Purwar

Appl. Comput. Intell. Soft Comput., 2017

2013

A fast block motion estimation algorithm using dynamic pattern search.

Ravindra Kumar Purwar, Navin Rajpal

Signal Image Video Process., 2013

A Multilevel Distortion Measure for Block Based Motion estimation using integral Frames.

Ravindra Kumar Purwar, Navin Rajpal

J. Circuits Syst. Comput., 2013

Normalised LCS-based method for indexing multidimensional data cube.

Mayank Sharma, Navin Rajpal, B. V. Ramana Reddy, Ravindra Kumar Purwar

Int. J. Intell. Inf. Database Syst., 2013

2011

A matching criterion for motion compensation in the temporal coding of video signal.

Ravindra Kumar Purwar, Nupur Prakash, Navin Rajpal

Signal Image Video Process., 2011

2009

A Quality Based Motion Estimation Criterion for Temporal Coding of Video.

Ravindra Kumar Purwar, Nupur Prakash, Navin Rajpal

Proceedings of the Seventh International Conference on Advances in Pattern Recognition, 2009