M
Miron Livny
Researcher at Wisconsin Alumni Research Foundation
Publications - 4
Citations - 279
Miron Livny is an academic researcher from Wisconsin Alumni Research Foundation. The author has contributed to research in topics: Quantization (image processing) & Discrete cosine transform. The author has an hindex of 4, co-authored 4 publications receiving 274 citations.
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Patent
Method and system for data clustering for very large databases
TL;DR: In this paper, the clustering process is organized using a clustering feature tree structure, where each cluster feature comprises the number of data points in the cluster, the linear sum of the data points within the cluster and the square sum of each data point in the tree.
Journal ArticleDOI
An efficient algorithm for optimizing DCT quantization
V. Ratnakar,Miron Livny +1 more
TL;DR: The RD-OPT algorithm for DCT quantization optimization, which can be used as an efficient tool for near-optimal rate control in DCT-based compression techniques, such as JPEG and MPEG, is described.
Patent
Image compression system and method having optimized quantization tables
Viresh Ratnakar,Miron Livny +1 more
TL;DR: In this article, a digital image compression preprocessor for use in a discrete cosine transform-based DCT-based digital image-compression device is presented, and a dynamic programming mechanism is used to optimize the rate of image compression array against the image distortion array such that a rate-distortion-optimal quantization table is derived.
Performance of customized DCT quantization tables on scientific data
V. Ratnakar,Miron Livny +1 more
TL;DR: It is shown that the default compression/quality tradeoffs can be significantly improved upon by using customized tables, and that significant improvements are possible for the standard test images Lena and Baboon.