Location History:
- Cesson Sevigne, FR (2014 - 2015)
- Cesson Sévigné, FR (2016)
- Rennes, FR (2012 - 2018)
Company Filing History:
Years Active: 2012-2018
Title: Frederic Lefebvre: Innovator in Visual Data Compression
Introduction
Frederic Lefebvre is a notable inventor based in Rennes, France. He has made significant contributions to the field of visual data processing, holding a total of 9 patents. His work primarily focuses on methods for compressing visual descriptors and transmitting video data efficiently.
Latest Patents
One of his latest patents is titled "Methods and apparatus for model-based visual descriptors compression." This invention involves determining parameters of a generative probabilistic model from visual descriptors extracted from images. The visual descriptors are quantized and encoded using model-based arithmetic encoding for storage or transmission to a decoder. The decoder reconstructs the generative probabilistic model to decode the visual descriptors, which are essential for image analysis tasks such as image retrieval and object detection. A Gaussian mixture model is utilized as the generative probabilistic model in this implementation.
Another significant patent is "Method to transmit video data in a data stream and associated metadata." This method outlines a process for transmitting video data and its associated metadata in a structured manner. It includes steps for determining the structure of the video data, splitting it into chunks incrementally, and transmitting these chunks at time intervals before the related video data. Additionally, it describes a method for inserting fingerprint information associated with video data into the stream.
Career Highlights
Frederic Lefebvre is currently employed at Thomson Licensing, where he continues to innovate in the field of visual data processing. His work has garnered attention for its practical applications in image analysis and video data transmission.
Collaborations
He collaborates with talented individuals such as Lionel Oisel and Luis Montalvo, contributing to a dynamic work environment that fosters innovation.
Conclusion
Frederic Lefebvre's contributions to visual data compression and video transmission highlight his role as a leading inventor in the field. His patents reflect a commitment to advancing technology and improving data processing methods.