Upendra Kumar Acharya

According to our database, Upendra Kumar Acharya authored at least 5 papers between 2021 and 2024.

Collaborative distances:

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

2024

Directed searching optimized texture based adaptive gamma correction (DSOTAGC) technique for medical image enhancement.

Upendra Kumar Acharya, Sandeep Kumar

Multim. Tools Appl., January, 2024

2023

Hybrid deep neural network for automatic detection of COVID-19 using chest x-ray images.

Upendra Kumar Acharya, Mohammad Taha Ali, Mohd Kaif Ahmed, Mohd Tabish Siddiqui, Harsh Gupta, Sandeep Kumar, Ajey Shakti Mishra

Int. J. Imaging Syst. Technol., July, 2023

Image sub-division and quadruple clipped adaptive histogram equalization (ISQCAHE) for low exposure image enhancement.

Upendra Kumar Acharya, Sandeep Kumar

Multidimens. Syst. Signal Process., March, 2023

2021

Directed searching optimized mean-exposure based sub-image histogram equalization for grayscale image enhancement.

Upendra Kumar Acharya, Sandeep Kumar

Multim. Tools Appl., 2021

Speech quality evaluation for different pitch detection algorithms in LPC speech analysis-synthesis system.

Sandeep Kumar, Sneha Singh, Prabhakar Agarwal, Upendra Kumar Acharya, Prabira Kumar Sethy, Chanki Pandey

Int. J. Speech Technol., 2021