Explore the DenseNet deep neural network architecture in this 21-minute video tutorial. Learn about the key differences between DenseNets and ResNets, focusing on the use of concatenation operations instead of identity addition. Discover the benefits of this approach, including improved performance with smaller parameter sizes. Follow along with a comprehensive PyTorch implementation walkthrough, covering dense layers, transition layers, dense blocks, and the complete DenseNet structure. Gain insights into the architecture's ability to alleviate the vanishing-gradient problem, strengthen feature propagation, and encourage feature reuse. Examine the performance improvements achieved by DenseNets on various object recognition benchmark tasks, including CIFAR-10, CIFAR-100, SVHN, and ImageNet.