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Application-Aware Image Compression for Low Cost and Distributed Plant Phenotyping

Minervini, Massimo and Tsaftaris, Sotirios A. Application-Aware Image Compression for Low Cost and Distributed Plant Phenotyping. In: 18th International Conference On Digital Signal Processing, 1-3 July 2013, Santorini, Greece (2013)

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Plant phenotyping investigates how a plant's genome, interacting with the environment, affects the observable traits of a plant (phenome). It is becoming increasingly important in our quest towards efficient and sustainable agriculture. While sequencing the genome is becoming increasingly efficient, acquiring phenotype information has remained largely of low throughput, since high throughput solutions are costly and not widespread. A distributed approach could provide a low cost solution, offering high accuracy and throughput. A sensor of low computational power acquires time-lapse images of plants and sends them to an analysis system with higher computational and storage capacity (e.g., a service running on a cloud infrastructure). However, such system requires the transmission of imaging data from sensor to receiver, which necessitates their lossy compression to reduce bandwidth requirements. In this paper, we propose an application aware image compression approach where the sensor is aware of its context (i.e., imaging plants) and takes advantage of the feedback from the receiver to focus bitrate on regions of interest (ROI). We use JPEG 2000 with ROI coding, and thus remain standard compliant, and offer a solution that is low cost and has low computational requirements. We evaluate our solution in several images of Arabidopsis thaliana phenotyping experiments, and we show that both for traditional metrics (such as PSNR) and application aware metrics, the performance of the proposed solution provides a 70% reduction of bitrate for equivalent performance.

Item Type: Conference or Workshop Item (Paper)
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
T Technology > TD Environmental technology. Sanitary engineering
Research Area: Computer Science and Applications
Depositing User: Users 35 not found.
Date Deposited: 06 Mar 2013 08:36
Last Modified: 17 Sep 2013 10:35
URI: http://eprints.imtlucca.it/id/eprint/1510

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