Chung-Neng Wang

Title: Innovations of Chung-Neng Wang

Introduction

Chung-Neng Wang is a prominent inventor based in Kaohsiung, Taiwan. He has made significant contributions to the field of video technology, particularly in MPEG-4 systems. With a total of seven patents to his name, Wang's work focuses on enhancing video streaming quality in networks prone to packet loss.

Latest Patents

One of Wang's latest patents is an MPEG-4 streaming system with adaptive error concealment. This innovative system is designed to provide video services under network conditions that experience packet loss. The system comprises an encoder and a decoder, where the encoder employs an intra-refreshment technique to enhance the robustness of the coded bitstream against noise, effectively stopping error propagation. Additionally, a rate-distortion optimization criterion is introduced, allowing for adaptive updates in synchronization with intra-coded blocks based on the actual network conditions, all while maintaining minimal overhead. The Lagrange multiplier is modified to achieve an optimal rate-distortion balance. Furthermore, a decoder loop is integrated into the encoder, ensuring synchronization with the true decoder to maximize performance and prevent mismatches. The decoder is capable of resilient decoding from various types of noise, significantly improving the reconstructed image quality through a spatial and temporal hybrid concealment method. The results indicate a remarkable improvement in peak-signal-to-noise-ratio (PSNR), achieving a 3.65-9.71 dB enhancement compared to existing methods that utilize spatial copy and zero motion concealment.

Career Highlights

Chung-Neng Wang has held positions at notable institutions, including National Yang Ming Chiao Tung University and the Industrial Technology Research Institute. His work at these organizations has allowed him to further develop his innovative ideas and contribute to advancements in video technology.

Collaborations

Wang has collaborated with several talented individuals in his field, including Tihao Chiang and Hsiang-Chun Huang. These collaborations have played a crucial role in the development of his patents and innovations.

Conclusion

Chung-Neng Wang's contributions to MPEG-4 technology and video streaming systems demonstrate his expertise and commitment to innovation. His work continues to influence the field, providing solutions that enhance video quality in challenging network conditions.