Location History:
- Hachioji, JP (1985 - 1989)
- Kanagawa, JP (1991 - 1993)
- Kunitachi, JP (1998 - 2000)
- Yokohama, JP (2003)
Company Filing History:
14 out of 42,508 
3 out of 67 
Years Active: 1985-2003
Title: Kazuo Ishikura: Innovator in Motion Compensation Technology
Introduction
Kazuo Ishikura is a prominent inventor based in Yokohama, Japan, known for his significant contributions to motion compensation technology. With a total of 14 patents to his name, Ishikura has made remarkable advancements in the field of image signal processing.
Latest Patents
Ishikura's latest patents include a method and device for converting the number of frames of image signals. This invention provides a movement correction frame count transformation apparatus that processes picture signals effectively. The apparatus converts an input picture signal of interlaced scanning into a signal of sequential scanning through an IP conversion unit. Additionally, a movement detecting unit identifies movement detection signals, while a block unit movement vector searching unit performs block matching processing to detect a block unit movement vector. The movement vector correcting unit generates a movement vector if a movement correction error exceeds a threshold value. Furthermore, a pixel unit movement vector generating unit creates a movement vector with the smallest error component between the current frame signal and the preceding frame signal. An MC interpolation frame signal generating unit then produces an interpolation frame in movement correction processing, resulting in a signal of sequential scanning based on movement correction.
Another notable patent is a circuit for scan conversion of picture signals using motion compensation. This low-cost circuit ensures high picture quality and includes a motion-adaptive first interpolation signal generator, a second motion-compensated interpolation signal generator, and a motion vector detector. The setting unit checks the reliability of motion compensation by comparing signals from the second interpolation signal generator with interlaced scanning lines, allowing for effective conversion of interlaced scanned signals into progressive scanned signals.
Career Highlights
Kazuo Ishikura has worked with notable companies such as Hitachi, Ltd. and Hitachi Video Engineering, Incorporated. His experience in these organizations has contributed to his expertise in image processing technologies.
Collaborations
Ishikura has collaborated with several professionals in his field, including Masato Sugiyama and Masahiko Achiha. These collaborations have further enhanced his innovative work in motion compensation technology.
Conclusion
Kazuo Ishikura's contributions to motion compensation technology through his patents and collaborations have significantly impacted the field of image processing. His work continues to influence advancements in this area, showcasing his role as a leading inventor.