在H.264 中,变换系数的读出方式也有两种:之字形(Zig-Zag) 扫描和双扫描(Double Scan),如图 2-5 所示。大多数情况下使用简单的之字形扫描; 双扫描仅用于使用较小量化级的块内,有助于提高编码效率。
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Double-scan 双速扫描
double scan method 二次扫描法
adapter double-scan color graphics 双扫描图像配接器
double line scan 双扫描行
double rotating scan 双回转扫描
double-wavelength scan 双波长扫描
double-gimbaled scan mirror 双轴扫描反射镜
double mechanical scan system 双机械扫描
thin layer double wavelength scan 薄层双波长扫描法
The device of microcomputer scan test and the sequence record of accident is a double microcomputer system consisted of TRS-80 microcomputer and a SC-801 single board computer.
微机巡捡与事故顺序记录装置采用了TRS—80微型计算机与SC—801单板机组成的双微机系统。
Conclusion Hypotonic double contrast examination combined with CT scan, it is very helpful to improve the diagnostic and differential ability of gastric leiomyosarcoma.
结论胃低张双重造影和CT扫描密切结合,对提高胃平滑肌肉瘤的诊断和鉴别诊断很有帮助。
Objective to explore the value of double balloon endoscopy (DBE) and small bowel computed tomography (ct) scan in the early diagnosis of small intestinal stromal tumors.
目的探讨双气囊内镜(DBE)检查和小肠计算机断层摄像(CT)扫描在小肠间质瘤早期诊断中的应用价值。
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