Location History:
- Malden, MA (US) (1998)
- Somerville, MA (US) (1999)
- Someville, MA (US) (1999)
- Sommerville, MA (US) (1999 - 2000)
- San Diego, CA (US) (2003)
Company Filing History:
Years Active: 1998-2003
Title: Innovations of Ibrahim Hajjahmad
Introduction
Ibrahim Hajjahmad is a notable inventor based in Malden, MA (US). He has made significant contributions to the fields of signal processing and image processing, holding a total of 9 patents. His work focuses on enhancing the efficiency and effectiveness of linear filtering techniques using wavelet transforms.
Latest Patents
One of his latest patents is titled "Method and apparatus for performing linear filtering in wavelet based domain." This invention discloses a method, apparatus, and computer usable medium for linear filtering with filters of any desired shape and length using the wavelet transform as the computation engine. The method modifies the basis function of the wavelet and/or inverse wavelet transform(s) by convolving it with the desired filter, thereby forming a modified wavelet and/or inverse wavelet transform(s). This approach allows for linear filtering in signal processing and image processing without the need for additional software or hardware modifications.
Another significant patent is focused on "Minimizing blocking artifacts in a filtered image." This invention aims to prevent or minimize blocking artifacts that can appear in images due to the independent processing of each overlapped block by various filters. The method calculates true pixel correction values and adds them to each pixel, ensuring smooth transitions between adjacent blocks of pixels. This corrective technique, referred to as 'stitching,' can be applied in either the spatial or frequency domain.
Career Highlights
Ibrahim Hajjahmad is currently employed at Polaroid Corporation, where he continues to innovate in the field of imaging technology. His work has been instrumental in advancing the capabilities of image processing systems.
Collaborations
Throughout his career, Ibrahim has collaborated with talented individuals such as Munib A Wober and Michael L Reisch. These collaborations have contributed to the development of his innovative patents and advancements in technology.
Conclusion
Ibrahim Hajjahmad's contributions to the field of signal and image processing through his innovative patents demonstrate his expertise and commitment to advancing technology. His work continues to influence the industry and improve the quality of digital imaging.