Per Wennersten

Title: **Per Wennersten: Innovator in Video Decoding Technologies**

Introduction

Per Wennersten, based in Årsta, Sweden, is a prominent inventor in the field of video technology. With a remarkable portfolio of 57 patents, he has contributed significantly to the advancement of video codecs and related methodologies. His innovative efforts have propelled the industry towards more efficient and effective video encoding and decoding solutions.

Latest Patents

Among his latest patents, Per has developed a **Bilateral Loop Filter** which outlines several methods, decoders, and programs for image processing. This invention enables the decoding of all blocks of an encoded image, where each blocks filtering process involves selecting neighboring samples and calculating differences to derive a correction value. This filtered sample is then stored and output toward a decoder, enhancing the clarity and effectiveness of video renderings.

Additionally, he holds a patent for a **Method and Apparatus for Non-Separable Transform Selection in an Encoder and Decoder**. This technology provides a systematic approach for decoding video blocks based on multiple transform selection (MTS) indices. By parsing these indices, the invention determines whether specific transform sets should be applied in the decoding process, thereby optimizing the overall decoding strategy.

Career Highlights

Per is affiliated with Telefonaktiebolaget LM Ericsson, known simply as Ericsson, a global leader in telecommunications. His tenure at this esteemed company has allowed him to collaborate on groundbreaking projects that have reshaped the landscape of video technology.

Collaborations

Throughout his career, Per has worked alongside esteemed colleagues such as Jacob Ström and Rickard Sjöberg. These collaborations have spurred innovations and refined existing technologies within the company, illustrating the importance of teamwork in driving forward-thinking solutions.

Conclusion

With a solid foundation of 57 patents, Per Wennersten stands out as a key figure in the evolution of video technology. His latest inventions contribute to an ongoing narrative of innovation that not only showcases his expertise but also highlights the vital role of collaboration in achieving technological advancements. As the field continues to evolve, Pers contributions will undoubtedly influence the future of video encoding and decoding practices.