Title :
A novel compression and reconstruction algorithm for aerial image sequence
Author :
Xu Cheng ; Huang Daqing ; Han Wei
Author_Institution :
Coll. of Electron. Inf. Eng., Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China
Abstract :
According to the characteristics of aerial image sequence shot by UAV, a novel compression and reconstruction algorithm based on compressed sensing is proposed. The random measurements of each image and the flight parameters are produced at the encoder, and then transmitted to the decoder. At the decoder, a motion estimation model is built based on analyzing the geometric relationship between camera and object, which can effectively reduce the redundancies between images. The de-correlation image is sparser, which can be reconstructed easily and the recovered images have a higher quality. Experimental results show that the proposed algorithm has improved reconstruction performance and consumes less operating time at the encoder, which is more suitable for hardware implementation on UAV.
Keywords :
autonomous aerial vehicles; compressed sensing; data compression; decorrelation; image coding; image motion analysis; image reconstruction; image sequences; UAV; aerial image sequence; compressed sensing; decorrelation image; flight parameters; image compression algorithm; image reconstruction algorithm; motion estimation model; random measurements; unmanned aerial vehicle; Compressed sensing; Image coding; Image reconstruction; Image sequences; Motion estimation; PSNR; Vectors; Aerial image sequence; UAV; compressed sensing; image reconstruction; motion estimation;
Conference_Titel :
Signal Processing (ICSP), 2014 12th International Conference on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4799-2188-1
DOI :
10.1109/ICOSP.2014.7015182