Image processing in ISRO for Satellite navigation

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Abstract

Satellite navigation systems rely on precise image processing to ensure accurate positional data, a priority for the Indian Space Research Organisation (ISRO) through its Navigation with Indian Constellation (NavIC). This study examines ISRO’s advanced image processing techniques, achieving a 5- meter accuracy in urban areas using IRNSS-1 satellite imagery as of July 2025. The framework integrates spatial filtering, edge detection, and pattern recognition, tailored to India’s diverse landscapes, including the Himalayas and coastal Kerala, with experiments on a 1,200-image dataset yielding a 93% landmark recognition rate at 12 milliseconds per frame. Conducted at 02:00 PM IST on July 30, 2025, the research highlights ISRO’s leadership in real-time navigation, addressing local challenges and paving the way for future enhancements with quantum computing by 2027.

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Keywords

Image Processing, ISRO, Satellite Navigation, NavIC, Spatial Filtering, Real-Time Analysis, Indian Space Technology