University of Southern California

Samsung Electronics Co., Ltd.

Godwin Shen

Antonio Ortega

Woo-Shik Kim

Jaejoon Lee

Javier Perez-Trufero

Sunil K Narang

HoCheon Wey

Devices, systems, and techniques for data collecting network such as wireless sensors are disclosed. A described technique includes detecting one or more remote nodes included in the wireless sensor network using a local power level that controls a radio range of the local node. The technique includes transmitting a local outdegree. The local outdegree can be based on a quantity of the one or more remote nodes. The technique includes receiving one or more remote outdegrees from the one or more remote nodes. The technique includes determining a local node type of the local node based on detecting a node type of the one or more remote nodes, using the one or more remote outdegrees, and using the local outdegree. The technique includes adjusting characteristics, including an energy usage characteristic and a data compression characteristic, of the wireless sensor network by selectively modifying the local power level and selectively changing the local node type.

Distributed transforms for efficient data gathering in sensor networks

An encoding system may generate an edge map based on a pixel value difference between neighboring pixels in an inputted image, generate a graph by connecting pixels using the generated edge map, select a prediction value for at least one pixel based on the generated graph, and encode an image based on the selected prediction value.

Image encoding/decoding system using graph based pixel prediction and encoding system and method

Growing community of inventors

Pasadena, CA, United States of America

Godwin Shen