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Co-Authors
- Ashok Bathla
- B. Raghavendra Prasad
- Dipankar Banerjee
- S. Nagabhushana
- Amit Kumar
- P. U. Kamath
- S. Kathiravan
- Suresh Venkata
- N. Rajkumar
- V. Natarajan
- Madhur Juneja
- Pawan Somu
- Vaibhav Pant
- Nigar Shaji
- K. Sankarsubramanian
- Asit Patra
- R. Venkateswaran
- Abhijit Avinash Adoni
- S. Narendra
- T. R. Haridas
- Shibu K. Mathew
- R. Mohan Krishna
- K. Amareswari
- Bhavesh Jaiswal
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Singh, Jagdev
- A Review on Image Enhancement Using Intelligent Transportation System
Abstract Views :165 |
PDF Views:0
Authors
Jagdev Singh
1,
Ashok Bathla
1
Affiliations
1 YCOE, Talwandi Sabo, IN
1 YCOE, Talwandi Sabo, IN
Source
Research Cell: An International Journal of Engineering Sciences, Vol 22 (2016), Pagination: 109-113Abstract
Enhancement plays an important role in digital image processing.The visibility of images of open air road scenes becomes degraded when captured in severe climate conditions. Drivers frequently turn on the headlights of their vehicles and streetlights are regularly actuated, bringing about confined light sources in images of road scenes in these conditions. Furthermore, dust storms are additionally climate occasions that are regularly experienced when driving in a few districts. A novel and effective haze removal approach to cure these issues created by confined light sources and color shifts, which subsequently accomplishes better restoration results for single hazy images. Poor visibility degrades quality and performance of computer vision algorithms for smart transportation frameworks, for example, traveling vehicle data recorders and traffic surveillance systems, activity observation frameworks which must operate under a wide range of weather conditions. Another issue is that the captured foggy road scene images contains confined light sources or shading movement issues because of dust storm conditions. Movement detection and Darkness are also problems in the captured images. The goal of this work is to enhance the road scene images using different filters and enhancement techniques. The distinctive sorts of parameters are figured that are PSNR, MD, MSE and Processing Speeds.Keywords
PSNR, MD, Images, HE, BBHE, DPC, RSWHE.- Visible Emission Line Coronagraph on Aditya-L1
Abstract Views :257 |
PDF Views:73
Authors
B. Raghavendra Prasad
1,
Dipankar Banerjee
1,
Jagdev Singh
1,
S. Nagabhushana
1,
Amit Kumar
1,
P. U. Kamath
1,
S. Kathiravan
1,
Suresh Venkata
1,
N. Rajkumar
1,
V. Natarajan
1,
Madhur Juneja
1,
Pawan Somu
1,
Vaibhav Pant
1,
Nigar Shaji
2,
K. Sankarsubramanian
2,
Asit Patra
3,
R. Venkateswaran
4,
Abhijit Avinash Adoni
2,
S. Narendra
2,
T. R. Haridas
5,
Shibu K. Mathew
6,
R. Mohan Krishna
2,
K. Amareswari
2,
Bhavesh Jaiswal
2
Affiliations
1 Indian Institute of Astrophysics, 2nd Block, Koramangala, Bengaluru 560 034, IN
2 ISRO Satellite Centre, Old Airport Road, Vimanapura Post, Bengaluru 560 017, IN
3 Space Applications Centre, Jodhpur Tekra, Ambawadi Vistar, P.O., Ahmedabad 380 015, IN
4 Laboratory for Electro-Optics Systems, First Phase, Peenya Industrial Estate, Bengaluru 560 058, IN
5 ISRO Inertial Systems Unit, Vattiyoorkavu PO, Thiruvananthapuram 695 013, IN
6 Udaipur Solar Observatory, Near Fatehpur Lake, Shilpgram, Udaipur 313 004, IN
1 Indian Institute of Astrophysics, 2nd Block, Koramangala, Bengaluru 560 034, IN
2 ISRO Satellite Centre, Old Airport Road, Vimanapura Post, Bengaluru 560 017, IN
3 Space Applications Centre, Jodhpur Tekra, Ambawadi Vistar, P.O., Ahmedabad 380 015, IN
4 Laboratory for Electro-Optics Systems, First Phase, Peenya Industrial Estate, Bengaluru 560 058, IN
5 ISRO Inertial Systems Unit, Vattiyoorkavu PO, Thiruvananthapuram 695 013, IN
6 Udaipur Solar Observatory, Near Fatehpur Lake, Shilpgram, Udaipur 313 004, IN
Source
Current Science, Vol 113, No 04 (2017), Pagination: 613-615Abstract
Solar coronagraph mimics total solar eclipse by blocking the solar disk and enabling the observation of extended coronal atmosphere of the Sun. Visible Emission Line Coronagraph (VELC), on-board Aditya-L1 space mission, is an internally occulted solar coronagraph capable of simultaneous imaging, spectroscopy and spectro-polarimetry close to the solar limb. This payload is designed to study the coronal plasma and heating of the solar corona. Studying development, dynamics and origin of coronal mass ejections and measurement of coronal magnetic fields over active regions are other important science goals. VELC is designed to image the solar corona at 500 nm with an angular resolution of 5" over a field of view (FOV) of 1.05-3 Ro. It also facilitates simultaneous multi-slit spectroscopy at three emission lines, viz. Fe XIV (530.3 nm), Fe XI (789.2 nm) and Fe XIII (1074.7 nm) with a spectral resolution of 28 , 31 and 202 mÅ/pixel respectively, over an FOV of 1.05-1.5 Ro. The payload has a dual-beam spectro-polarimetry channel for magnetic field measurements at 1074.7 nm.Keywords
Coronagraph, Coronal Mass Ejection, Payload, Solar Corona.References
- Aditya-L1 first Indian mission to study the Sun; http://www.isro.gov.in/aditya-l1-first-indian-missiontostudy-sun (12 May 2016).
- Singh, J. et al., Proposed visible emission line space solar coronagraph. Curr. Sci., 2011, 100(2), 167–174.
- Singh, J., Bayanna, R. and Sankarasubramanian, K., Visible emission line space solar coronagraph: science and optical design. J. Opt., 2013, 42(2), 96–100.
- Sankarasubramanian, K., Solar coronal studies with Aditya-1 mission. In 31st ASI Meeting, ASI Conference Series, 2013, vol. 9, pp. 43–48.
- Venkata, S. N., Prasad, B. R., Nalla, R. K. and Singh, J., Scatter studies for visible emission line coronagraph on board ADITYAL1 mission. J. Astron. Telesc. Instrum. Syst., 2017, 3, 014002.
- Bayanna, R. A., Mathew, S. K., Sankarasubramanian, K., Venkatakrishnan, P., Singh, J. and Prasad, B. R., Issues with external occultation of a coronagraph. Exp. Astron., 2011, 29, 145–153.