ChainerCV is a computer vision library built on the Chainer deep learning framework. It provides implementations of popular neural network architectures for tasks such as object detection (Faster R-CNN, SSD, YOLO), semantic segmentation (DeepLab v3+, PSPNet), and instance segmentation (Mask R-CNN). The library offers cohesive APIs for training, evaluation, and model deployment with reproducibility-focused training scripts and pretrained weights.