Automatic Design of Color Filter Arrays in The Frequency Domain Abstract In digital color imaging, the raw image is typically obtained through a single sensor covered by a colorfilter array (CFA), which allows only one color component to be measured at each pixel. The procedure to reconstruct a full color image from the raw image is known as demosaicking. Since the CFA may cause […]
Enhancing Sketch-Based Image Retrieval by Re-ranking and Relevance Feedback Abstract A sketch-based image retrieval often needs to optimize the tradeoff between efficiency and precision. Index structures are typically applied to large-scale databases to realize efficient retrievals. However, the performance can be affected by quantization errors. Moreover, the ambiguousness of user-provided examples may also degrade the performance, when compared with traditional image retrieval methods.Sketch-based image retrieval systems that preserve […]