Digital watermark is a technique used to protect the ownership of images and their associated software. A useful watermark scheme should be visually imperceptible and must be robust to resist various attacks: such as JPEG compression, pixel-shifting, cropping, blurring, etc. In this paper, we propose a public watermarking system to protect image processing software and images. We embed a binary...

Individual types of retinal neurons are distributed across the retina as regular arrays of cells, commonly referred to as “retinal mosaics” (Wässle and Riemann, 1978). This regularity in their patterning is generally assumed to ensure that all locations across the retina are sub-served by every type of retinal neuron, each participating in their own unique way to the local computations carried ...

We define mosaics, which are naturally in bijection with Knutson-Tao puzzles. We define an operation on mosaics, which shows they are also in bijection with Littlewood-Richardson skew-tableaux. Another consequence of this construction is that we obtain bijective proofs of commutativity and associativity for the ring structures defined either of these objects. In particular, we obtain a new, eas...

Abstract This paper investigates deep learning (DL)-based semantic segmentation of textured mosaics. Existing popular datasets for mosaic texture segmentation, designed prior to the DL era, have several limitations: (1) training images are single-textured and thus differ from multi-textured test images; (2) textures typically cut out same raw images, which may hinder model generalization; (3) e...

This work presents a novel robust wavelet-tree-based watermarking method based on structure-based quantization. Wavelet-trees are arranged into super-trees. The watermark bits are then embedded into the super-trees by using the proposed structure-based quantization method. Next, the super-trees are quantized into a significant structure according to these bits. The quantized super-tree has a st...

Unstructured Image Mosaics Rahul Garg Chair of the Supervisory Committee: Professor Steven M. Seitz Computer Science & Engineering Image mosaics stitch photos into a single composite with a wide field of view. They are easy to create and can be panned by dragging the mouse, thus enabling simple and effective photorealistic visualizations. However, they are restricted to structured input where t...

The ability to create mosaic animals allows the phenotypic analysis of patches of groups of genetically different cells that develop in a wild type environment. In Drosophila, a variety of techniques have been developed over the years to generate mosaics, and in this chapter, I review the techniques that our laboratory has developed. These include the "Dominant Female Sterile" technique which a...