Given an absolute path for a file (Unix-style), simplify it.For example,path="/home/", =>"/home"path="/a/./b/../../c/", =>"/c"click to show corner cas...
                            
                            
                                分类:
其他好文   时间:
2014-12-01 23:59:29   
                                阅读次数:
388
                             
                    
                        
                            
                            
                                最近在做一个项目,需要用树莓派作为AP发射wifi,对比cubieboard,树莓派的配置容易得多,而且支持也更多。
较为官方的介绍配置为无线热点的文章莫过于这一篇《RPI-Wireless-Hotspot》
按照这个设置,我的其实不成功,于是找到这篇文章《Turn
 Your Raspberry Pi Into a WiFi Hotspot with Edimax Nano USB E...
                            
                            
                                分类:
其他好文   时间:
2014-11-29 09:04:57   
                                阅读次数:
305
                             
                    
                        
                            
                            
                                This Design Idea stems from the limited availability of IC voltage regulators that can meet key USB-power specs, coupled with the need for turn-on seq...
                            
                            
                                分类:
其他好文   时间:
2014-11-28 14:04:34   
                                阅读次数:
162
                             
                    
                        
                            
                            
                                A robot is located at the top-left corner of a m x n grid (marked 'Start' in the diagram below).
The robot can only move either down or right at any point in time. The robot is trying to reach the ...
                            
                            
                                分类:
编程语言   时间:
2014-11-27 12:53:47   
                                阅读次数:
159
                             
                    
                        
                            
                            
                                Use the OpenCV function cornerEigenValsAndVecs to find the eigenvalues and eigenvectors to determine if a pixel is a corner. Use the OpenCV function c...
                            
                            
                                分类:
其他好文   时间:
2014-11-26 18:42:32   
                                阅读次数:
400
                             
                    
                        
                            
                            
                                Shi-Tomasi 算法是Harris 算法的改进。 Harris 算法最原始的定义是将矩阵 M 的行列式值与 M 的迹相减,再将差值同预先给定的阈值进行比较。后来Shi 和Tomasi 提出改进的方法,若两个特征值中较小的一个大于最小阈值,则会得到强角点。 void goodFeaturesTo...
                            
                            
                                分类:
其他好文   时间:
2014-11-26 17:57:58   
                                阅读次数:
969
                             
                    
                        
                            
                            
                                Harris 角点检测 ~~ Why is a corner so special Because, since it is the intersection of two edges, it represents a point in which the directions of these t...
                            
                            
                                分类:
其他好文   时间:
2014-11-26 16:04:47   
                                阅读次数:
253
                             
                    
                        
                            
                            
                                Turn the corner
Time Limit: 3000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)
Total Submission(s): 1899    Accepted Submission(s): 719
Problem Description
Mr. West bo...
                            
                            
                                分类:
其他好文   时间:
2014-11-24 22:39:25   
                                阅读次数:
303
                             
                    
                        
                            
                            
                                create_page_table完成了3种地址映射的页表空间填写:
(1)turn_mmu_on所在1M空间的平映射
(2)kernel image的线性映射
(2)bootparams所在1M空间的线性映射...
                            
                            
                                分类:
系统相关   时间:
2014-11-24 19:21:27   
                                阅读次数:
441
                             
                    
                        
                            
                            
                                Given an absolute path for a file (Unix-style), simplify it.
For example,
path = "/home/", => "/home"
path = "/a/./b/../../c/", => "/c"
click to show corner cases.
Corner Cases:
Did...
                            
                            
                                分类:
其他好文   时间:
2014-11-22 18:55:42   
                                阅读次数:
159