Performance Evaluation of Transmitting Images to a PDA through a Wireless Network
Performance Evaluation of Transmitting Images to a PDA through a Wireless Network
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通过无线网络向PDA传输图像的性能评估
DOI：
10.1109/sice.2006.315052
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发表时间：
2006
期刊：
影响因子：
--
通讯作者：
J. Jeon
中科院分区：
文献类型：
--
作者：
X. Pham;S. Jin;J. Jeon
本文介绍了通过无线网络将图像从台式计算机传输到PDA的性能。原始图像是由数码相机拍摄的。这些原始图像在发送到PDA之前由帧捕获器进行子采样或由软件压缩为JPEG格式。我们用FPGA实现了硬件的子采样。为了生成不同的图像测试桶进行压缩，我们在硬件中实现了一些常用的过滤器，如平均过滤器和中值过滤器。过滤器影响JPEG格式压缩图像的大小。结果表明，图像压缩和图像子采样提高了图像传输的性能
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