foveabox
Aedes aegypti Egg Counting with Neural Networks for Object Detection
Vicente, Micheli Nayara de Oliveira, Higa, Gabriel Toshio Hirokawa, Porto, João Vitor de Andrade, Henrique, Higor, Nucci, Picoli, Santana, Asser Botelho, Porto, Karla Rejane de Andrade, Roel, Antonia Railda, Pistori, Hemerson
Aedes aegypti is still one of the main concerns when it comes to disease vectors. Among the many ways to deal with it, there are important protocols that make use of egg numbers in ovitraps to calculate indices, such as the LIRAa and the Breteau Index, which can provide information on predictable outbursts and epidemics. Also, there are many research lines that require egg numbers, specially when mass production of mosquitoes is needed. Egg counting is a laborious and error-prone task that can be automated via computer vision-based techniques, specially deep learning-based counting with object detection. In this work, we propose a new dataset comprising field and laboratory eggs, along with test results of three neural networks applied to the task: Faster R-CNN, Side-Aware Boundary Localization and FoveaBox.
- South America > Brazil > Mato Grosso do Sul > Campo Grande (0.14)
- Europe > Austria (0.04)
- South America > Brazil > Rio Grande do Norte > Natal (0.04)
- (4 more...)
Lymph Node Detection in T2 MRI with Transformers
Mathai, Tejas Sudharshan, Lee, Sungwon, Elton, Daniel C., Shen, Thomas C., Peng, Yifan, Lu, Zhiyong, Summers, Ronald M.
Identification of lymph nodes (LN) in T2 Magnetic Resonance Imaging (MRI) is an important step performed by radiologists during the assessment of lymphoproliferative diseases. The size of the nodes play a crucial role in their staging, and radiologists sometimes use an additional contrast sequence such as diffusion weighted imaging (DWI) for confirmation. However, lymph nodes have diverse appearances in T2 MRI scans, making it tough to stage for metastasis. Furthermore, radiologists often miss smaller metastatic lymph nodes over the course of a busy day. To deal with these issues, we propose to use the DEtection TRansformer (DETR) network to localize suspicious metastatic lymph nodes for staging in challenging T2 MRI scans acquired by different scanners and exam protocols. False positives (FP) were reduced through a bounding box fusion technique, and a precision of 65.41\% and sensitivity of 91.66\% at 4 FP per image was achieved. To the best of our knowledge, our results improve upon the current state-of-the-art for lymph node detection in T2 MRI scans.