image contrast technique 中文意思是什麼
image contrast technique
解釋
圖象襯比技術-
In contrast with previous approaches, the technique here introduced conquers the shortcoming of artificial corner and non - connectivity of tv model and mumford - shah model, and makes image more vivid and perfect
與以前的方法相比，這里所介紹的技術克服了整體變分模型和mumford - shah模型中出現拐角和連通性不好的缺陷，從而使圖像修描結果更加逼真完善。 -
In this paper, the contrast of original image is enhanced by nonlinear transformation based on the characteristics of grain image ; after comparing several methods of threshold segmentation and analyzing their performance and applicability on grain image, the adaptive threshold segmentation based on gradient image is presented ; the noise of binary image is reduced with morphological filter, the hollow in binary image is filled in and a recognition algorithm is designed to remove agglomerate particle ; on the basis of mathematical morphology two methods are adopted to segment agglomerate grains that are not agglomerated tightly ; the parameters of size and shape, perimeter, area, diameter, complexlity, longest feret diameter, shortest feret diameter etc, are extracted. this technique is applied in measurement of pearl powder ' s particle size
本文根據粒度圖像的特點，採用非線性對比度增強處理改善顆粒顯微圖像的對比度；對多種閾值分割方法進行比較，分析了它們的性能和用於粒度圖像的適用性，在此基礎上提出了一種基於梯度圖像的動態閾值分割方法；對獲取的顆粒二值圖像進行形態濾波和空洞填充，設計了識別演算法去除凝聚體；對重疊不太嚴重的粘結顆粒採用了兩種基於數學形態學的分割演算法；提取了周長、面積、粒徑、復雜度、最長feret徑、最短feret徑等大小和形狀特徵參數，對珍珠粉等粉體粒度進行了測量。 -
A functional mr technique was used in which a bolus of gadoteridol contrast agent was injected rapidly during the collection of image data, resulting in contrast - induced signal loss in proportion to cerebral blood volume
功能磁共振技術，即在成像收集數據的過程中快速注射一支造影劑，可測試腦血容量分配中對比感應信號的遺失。 -
Traditional image enhancement technique will amplify interfering signal and scintillation at the same time, while grey scale accelerating circuit and contrast enhancement technology have successfully solve this problem
傳統的影像增強技術會使干擾信號和閃爍也同時被放大，灰階加速電路和對比度增強技術成功地解決了這個問題。
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