Title :
Performance Evaluation of Transmitting Images to a PDA through a Wireless Network
Author :
Pham, Xuan Dai ; Jin, Seung Hun ; Jeon, Jae Wook
Author_Institution :
Sch. of Inf. & Commun. Eng., Sung Kyun Kwan Univ., Suwon
Abstract :
This paper presents the performance of transmitting images from a desktop computer to a PDA through a wireless network. Raw images were captured by a digital camera. These raw images were sub-sampled by a frame grabber or compressed in JPEG format by software before sending to the PDA. We implemented the hardware with an FPGA for sub-sampling. For generating a diverse image test bucket for compression we implemented some commonly used filters such as an average filter and median filter in the hardware. The filters affected the size of the compressed images in the JPEG format. The results show that image compression and image sub-sampling improve the performance in the transmission of images
Keywords :
data compression; image coding; visual communication; wireless LAN; FPGA; JPEG format; desktop computer; digital camera; field programmable gate arrays; image compression; performance evaluation; personal digital assistants; wireless network; Computer networks; Digital cameras; Field programmable gate arrays; Filters; Hardware; Image coding; Image generation; Personal digital assistants; Transform coding; Wireless networks; Image transmission; PDA; wireless communication;
Conference_Titel :
SICE-ICASE, 2006. International Joint Conference
Conference_Location :
Busan
Print_ISBN :
89-950038-4-7
Electronic_ISBN :
89-950038-5-5
DOI :
10.1109/SICE.2006.315052