MUMBAI, India, July 30 -- Intellectual Property India has published a patent application (202621067492 A) filed by Dr. Satyanarayana Vollala; Shashi Tiwari; Ashutosh Jaiswal; Preethi Bhaskaran; and Gaurav Atram on May 29, 2026, for System And Method For Image Quality Enhancement Using Sequential Filtering Techniques.
Inventors include Dr. Satyanarayana Vollala; Shashi Tiwari; Ashutosh Jaiswal; Preethi Bhaskaran; and Gaurav Atram.
The application for the patent was published on July 24, 2026, under issue no. 30/2026.
Abstract: SYSTEM AND METHOD FOR IMAGE QUALITY ENHANCEMENT USING SEQUENTIAL FILTERING TECHNIQUES The invention discloses a system (200) and method (300) for image quality enhancement through a structured pipeline of sequential filtering techniques. The system includes an input acquisition module (201) to receive raw images (101), a pre-processing unit (202) applying bicubic interpolation (102) for resolution upscaling, a noise reduction unit (203) executing bilateral filtering (103), and an edge enhancement unit (204) applying isotropic prediction (104) to strengthen gradients. Further refinement is achieved with unsharp masking (105), high-pass filtering (106), and a kernel-based sharpening unit (207) to deliver final clarity. A performance validation module (208) compares results using PSNR, SSIM, and LPIPS metrics, while an output interface (209) delivers the enhanced image. The method (300) follows sequential steps of acquisition, interpolation, filtering, prediction, masking, high-pass detail recovery, sharpening, validation, and output delivery. This integrated approach minimizes information loss and produces sharper, cleaner, and more visually appealing images suitable for medical imaging, satellite analysis, surveillance, and consumer applications.
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