Location History:
- Nobuyuki, JP (1995)
- Utsunomiya, JP (1997 - 1998)
- Yokohama, JP (1993 - 2002)
- Tokyo, JP (2002)
Company Filing History:
Years Active: 1993-2002
Title: Nobuyuki Sashida: Innovator in Image Processing Technologies
Introduction
Nobuyuki Sashida is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of image processing, holding a total of 6 patents. His innovative techniques have the potential to enhance image quality while reducing computational demands.
Latest Patents
Sashida's latest patents include an image signal processing method and device, as well as a storage medium. This image compression and restoration technique serves as a substitute for JPEG. It performs orthogonal transforms on original image signals without interpolation, which reduces the calculation requirements compared to the JPEG standard. Additionally, this method effectively suppresses degradation of image quality. The process involves quantization, re-ordering, and Huffman coding, with a unique approach that utilizes data from previous blocks, resulting in a simpler and less CPU-intensive codec technique. Conversely, the compressed data can be restored using a procedure that reverses the compression technique.
Another notable patent is his motion vector detecting method and device, along with a storage medium. This improved method ensures a wide search area while minimizing the detection of erroneous motion vectors. It divides the second image frame into blocks and classifies them into two groups, ensuring that mutually adjacent blocks belong to different groups. The method specifies motion vector candidates for each block and updates them by analyzing the average of adjacent blocks' motion vector candidates. This process is repeated over time to enhance accuracy.
Career Highlights
Throughout his career, Sashida has worked with notable companies, including Sumitomo Bakelite Company Limited and Custom Technology Corporation. His experience in these organizations has contributed to his expertise in image processing technologies.
Collaborations
Sashida has collaborated with esteemed colleagues such as Shunichi Takeuchi and Akira Tokoh. Their joint efforts have further advanced the field of image processing.
Conclusion
Nobuyuki Sashida's innovative contributions to image processing technologies demonstrate his commitment to enhancing image quality and efficiency. His patents reflect a deep understanding of the complexities involved in image signal processing, making him a significant figure in this field.