Abstract:

In modern multimedia teaching system, the students just obtain image information through the big screen's slider, but due to the factors such as distance, they can't get the data clearly and store the content of the teacher's lecture automatically, in order to meet this demand, the embedded processor, image acquisition module and WiFi have been combined, the JPEG (Joint Photographic Experts Group) hardware encoding and PP (Post Processor) supporting images caling and format conversion technology have been introduced, the embedded wireless image transmission and processing system based on JPEG hardware encoding
was designed. For the students, the image from teacher can be decoded, displayed and stored automatically improving the learning efficiency and realizing the image information interaction. Finally, in the Linux environment, the procedures of Ad Hoc and self communication were programmed to test the program, the experimental data verified the feasibility and completeness of the system architecture, network protocols, and the core algorithm. The conn
ecting speed of the terminals was realtime and efficient, the speed of image a
cquisition, compression, display, and wireless transmission can reach the intell
igent standards.

Key words: joint photographic experts group (JPEG) hardware encoding, post processor (PP), S3C6410 embedded processor, user datagram protocol