WELCOME TO
Regional Centre for Geodesy
Institute of Remote Sensing
College of Engineering Guindy, Anna University - Chennai
About Us

Institute of Remote Sensing (IRS)
Anna University blossomed to its present status from a humble beginning in 1978, as the first ‘Survey School’ in the country to produce land surveyors. The Institute of Remote Sensing (IRS) was established in 1982 by Anna University with the funds provided by the Government of Tamil Nadu. IRS is also functioning as State Remote Sensing Application Center for Government of Tamil Nadu. Over the years, the infrastructural facilities have been gradually built-up using development grants mainly from Ministry of Human Resources Development, University Grants Commission, Federal Republic of Germany, Government of India and Department of Agriculture of Government of Tamil Nadu. At present, the Institute is rated as one of the best in the country in the areas of Remote Sensing, Geographical Information System and Large Scale Mapping. The Institute functions as an autonomous unit of Anna University, governed by an executive committee headed by the Vice-Chancellor and the recurring grants for maintenance are provided by the Government of Tamil Nadu.
As an externally assisted project, Federal Republic of Germany has provided assistance worth 7 million DM towards equipment, exchange of staff and for conducting a 4-year engineering Under-Graduate program, B.E. (Geoinformatics). The Institute has about 2400 square metres of built-up space for various laboratories equipped with sophisticated instruments and machinery worth Rs.150 million. The Royal Norwegian emphasis as a part of Indo Norwegian Institutional Cooperation Programme has supported the institute to a tune of 1.1 crores for selected research projects and infrastructure development. Also, the IRS is a member of UN-GGIM Network.
Origin for National Centre for Geodesy (NCG)
The NCG was initially conceived on account of limited education in Geodesy at the national level. Although courses on Surveying and Mapping, Geoinformatics, Remote Sensing/ GIS, etc. are being taught at a few universities, none delve into the fundamentals and advanced concepts in Geodesy. Further, national expertise in areas such as Geodesy and SAR interferometry, is rather limited. Thus, there is a need for the development and training of human resources in the aligned areas.

Objectives of RCG
- Organizing outreach activities
- Capacity building
- Conducting state-of-the-art R&D activities
- Acting as the Regional Resource Centre for extensive support (laboratory, equipment, training, library, SW, etc.) to students, researchers, and state government departments
.
People
Faculty

Dr. R. Vidhya
Professor & Director
044 - 2235 8155
Research Area: Photogrammetry

Dr. D. Thirumalaivasan
Professor
044 - 2235 7833
Research Area: LIDAR

Dr. K. Srinivasa Raju
Professor
044 - 2235 8144
Research Area: Geodesy applications

Dr. C. Udhayakumar
Professor
044 - 2235 8153
Research Area: Artificial Intelligence

Dr. R. Kanmani Shanmuga Priya
Assistant Professor
044 - 2235 8145
Research Areas: Interferometry, Ocean and Coastal

Dr. P. Shoba
Assistant Professor
044 - 2235 8177
Research Area: Reflectometry, Vegetation Modeling

Dr. Divya Priya B
Assistant Professor
044 - 2235 8172
Research Area: TLS (Terrestrial Laser Scanning)
Staff
Dhivahar T
Junior Research Fellow
Research areas: Subsidence Modelling, Interferometry and Gravimetry
Abarna P
Junior Research Fellow
Research area: GNSS Measurements, GNSS Interferometric Reflectometry
Students
PG
V P Yoganandham
M.E Remote sensing
2nd Year
Research area: Geoid Modelling
UG
Geometric Method
Tharun KL
Prasanna P
Kanagavel P
Deepak K
Gravimetric Method
Raguram C
Kasi raj kavin R
Madhavan S
Joe Maria remo I
Courses
Course Type | Description | Syllabus Link |
---|---|---|
Undergraduate | Details about UG courses | View PDF |
Postgraduate | Details about PG courses | View PDF |
Facilities
Equipments

The Trimble R12 is a high-performing GNSS receiver designed for surveying and geospatial applications. It features a 672-channel receiver with Trimble 360 satellite tracking technology, Trimble SurePoint tilt compensation, and xFill correction outage technology. The R12 is optimized for Trimble Access field software and supports both Android and iOS platforms. It offers cellular, Bluetooth, and Wi-Fi data connectivity, along with a rugged design and ergonomic form factor.
Pixaarnet Workstation – 3 Nos.
- i9 Powered Computers
- 32 GB RAM
(Received on 10-12-2023)
CORS
- CORS has been constructed in a dedicated quadrangle, located closer to the main approach road to the 200 year old heritage building of Anna University. Foundation stone was laid by Dr. Prakash Chauhan, Director, NRSC on 6th September 2024.
- CORS at RCG-IRS, Anna University is operational from 9th February 2025.
- Uninterrupted Power Backup and LAN Connection has been provided to the CORS station with dedicated Distribution Box placed adjacent to the CORS pillar and fiber optic cable.
- Access the live sensor data map here: http://202.3.77.155/Map/SensorMap.aspx

Training
Upcoming
S. No | Training Program Description | Mode | Date | Target Group |
---|---|---|---|---|
1 | Open house – Part of Geohorizon’25 | In person | 18-4-2025 (1 day) | School Children |
2 | Short Term Training Program – Introduction to Geodesy and GNSS | In person | 26-5-2025 to 31-5-2025 (6 days) | Research scholars, faculty members, Government employees, Industrial experts |
3 | Faculty Development Program on Advanced Geodesy and its Applications | In person | 16-6-2025 to 28-6-2025 (12 days) | Research scholars, faculty members, Government employees, Industrial experts |
S. No | Training Program Description | Mode | Date | Target Group |
---|---|---|---|---|
4 | Short Term Training Program – Introduction to Interferometry | In person | 11-8-2025 to 16-8-2025 (6 days) | Research scholars, faculty members, Government employees, Industrial experts |
5 | Faculty Development Program on GNSS and CORS observations and processing | In person | 15-9-2025 to 30-9-2025 (12 days) | Research scholars, faculty members, Government employees, Industrial experts |
6 | One day training on Local Geoid Model | In person | 31-10-2025 (1 day) | Research scholars, faculty members, Government employees, Industrial experts |
Completed
S.NO | Title of the Training Program | Date | Brochure |
---|---|---|---|
1 | Three-day course on Fundamentals of Geodesy | 18th to 20th March 2024 | Download |
2 | Short-Term Training Program on Exploration of Geodetic Measurement Techniques | 19th to 24th August 2024 | Download |
Publications
1. T. Dhivahar, Junior Research Fellow, presented a paper titled “Assessment of Land Subsidence in Chennai using Remote Sensing and GIS” at 4th International Conference on Environmental Management on 05 October 2024 at JNTU, Hyderabad.
Research areas
Following are the areas with which the institute plans to propel research activities based on past experience.
Short term
- Diagnostics and performance of various software for determining the precise positions
- TLS/UAV/GNSS based 3D surface and infrastructure documentation, modeling, and management
- Study of atmospheric effects on quality and efficacy of GNSS data in CORS network
- Gravity field modeling and local geoid description for urban planning and management
Mid term
- GNSS-gravity-interferometry based model for land subsidence and vertical motion
- Synergic use of GNSS-R, optical, and microwave data for hydrologic parameterization (soil moisture, vegetal biomass, and evapotranspiration)
- Standardization of GNSS data collection, cleaning, and processing for various applications
- GNSS for shoreline mapping, monitoring, and study of sea and coastal processes in the light of climate change
Long term
- Multi-sensor, multi-geodetic, and meteorological data analysis for weather nowcasting
- GNSS-PPP based solution for land cadastre and management, disaster, and emergency response
- Water mass budget analysis GNSS_GRACE-InSAR for selected South Indian basins
Events

Brochure of the Short-term Training Program on ‘Exploration of Geodetic Measurement Techniques’ 19th August 2024 to 24th August 2024. Totally 9 participants from reputed various institutions attended the entire three-day course.

Chart showing the diversity of the participants and their affiliations



Glimpse of Short-term Training Program on ‘Exploration of Geodetic Measurement Techniques’ 19th August 2024 to 24th August 2024. Sessions were handled by Maj. Gen. Dr. B. Nagarajan, Professor NCG IITK, Dr. K. Srinivasan, Assistant Professor, IRS, Anna University and Mr. T. Dhivahar, JRF, RCG, IRS.

Valedictory Discussion of Short-term Training Program on ‘Exploration of Geodetic Measurement Techniques’, 19th August 2024 to 24th August 2024.

Certificate Distribution of Short-term Training Program on ‘Exploration of Geodetic Measurement Techniques’ 19th August 2024 to 24th August 2024.
Gallery









Images and media showcasing RCG's activities and events.
Contact Us
Regional Centre for Geodesy, Institute of Remote Sensing (IRS)
College of Engineering, Guindy Anna University
Chennai 600025.
Email: dirirs@annauniv.edu
Phone: +914422358151-52