Alejandro M San Martin

Title: Innovations of Alejandro M San Martin

Introduction

Alejandro M San Martin is a notable inventor based in San Gabriel, CA. He has made significant contributions to the field of navigation technology, particularly in vision-based systems. With a total of 4 patents to his name, his work continues to influence advancements in this area.

Latest Patents

One of his latest patents is the "Minimal state augmentation algorithm for stereo-vision-based navigation." This innovative method enables vision-based navigation on moving vehicles. The process involves an image processor that receives reference images with associated depth information as base frames or search frames. In this system, 2D features are detected in base frames and tracked in subsequent search frames. A new base frame is triggered when a number of features or a spatial distribution fall under specific thresholds. Additionally, a depth processor reconstructs the depth and 3D position of each of the 2D features. A track manager oversees a feature list database that maps the 2D coordinates of each tracked feature with its corresponding 3D coordinate. Furthermore, a state manager constructs a filter state vector with 15 error states propagated at an IMU rate, along with 6 additional error states corresponding to clones of pose states. A visual updater utilizes the tracked 2D feature coordinates to update the filter state vector, while a filter forms residuals and corrects inertial error drift.

Career Highlights

Alejandro is currently associated with the California Institute of Technology, where he applies his expertise in navigation technologies. His work has been instrumental in developing systems that enhance the capabilities of vehicles in various environments.

Collaborations

Throughout his career, Alejandro has collaborated with esteemed colleagues, including Dara Sabahi and Robert M Manning. Their combined efforts have contributed to the advancement of innovative technologies in navigation.

Conclusion

Alejandro M San Martin's contributions to navigation technology through his patents and collaborations highlight his role as a significant inventor in the field. His innovative approaches continue to pave the way for future advancements in vision-based navigation systems.