Color image segmentation using energy minimization on a quadtree representation - Martinez-Uso, Pla, et al. - 2004 () Citation Context ...llumination problems have been drastically reduced. In order to test if the invariant representation improves the segmentation of the orange, a multispectral ...
In this paper, a rate-distortion framework is proposed to define a jointly optimal displacement vector field estimation (DVFE) and quadtree segmentation technique for video coding. This technique achieves maximum reconstructed image quality under the constraint of a target bit rate for the coding of...
This Python script implements a quadtree-based image segmentation algorithm. It subdivides an image into smaller regions based on color variation and represents these regions using a quadtree data structure. The script allows customization of various parameters such as color difference threshold, maximum...
Finally, to validate the method, experiments were performed on GeoEye-1 and IKONOS color images, and the segmentation results were compared with two typical algorithms: multi-resolution segmentation and Mean-Shift segmentation. The experimental results showed that: (1) Compared with multi-resolution ...
An unsupervised hierarchical segmentation method is described, and its application to tissue classification in magnetic resonance (MR) images of the human ... Z Wu,R Leahy - IEEE 被引量: 11发表: 1990年 A hierarchical decomposition approach for image indexing Increasing demand and expanding use of...
Parallel algorithm for multi-viewpoint viewshed analysis on the GPU grounded in target cluster segmentation 2024, International Journal of Digital Earth Statement: As TCP/IP is to theWeb, ICN is to the...? 2022, ICN 2022 - Proceedings of the 2022 9th ACM Conference on Information-Centric Netw...
A New Hybrid Fractal based Color Image Compression in YCbCr Scheme and Discrete Cosine Transform with Quadtree and Isosceles Triangle Segmentation Approach Color Image compression has become an important technology to decrease memory space and to reduce transmission time. The present study provides comparat...
To overcome these challenges, color enhancement and automatic color identification techniques, based on QuadTree segmentation and modeled after expert color assessments, are developed. The approach presented in this paper is shown to provide an accurate model of expert color assessment. Sp...
Quadtree segmentationVector quantizationIn this paper, a color image retrieval scheme based on quadtree classified vector quantization (QCVQ) is proposed. This scheme not only captures intra-block correlation but also exploits the visual...doi:10.1007/s11042-013-1492-yHsin-Hui Chen...
<正> A new algorithm of classified vector quantization based on quadtree segmentation is proposed. It can obtain lower bit rate and overcome edge degradation. Simulation results show that the better subjective image quality can also be obtained when bitrate is lower than 0.25 bpp. Comparing...