Overlaying GPS Coordinates for Camera Crosshairs

Hey Guys! I am working on a project to allow us to implement GPS coordinates for the location of the crosshairs of a PTZ camera, other wise known as Geo-pointing. This will essentially give us the LAT/LONG of what we are looking at. I have found sev…

mwc config.h 中文注释

#ifndef CONFIG_H_ #define CONFIG_H_ /**************************************************************************/ /**** CONFIGURABLE PARAMETERS ****/ /**** 可配置参量 ****/ /**** ****/ /**** 2013.10.28最新MWC程序注释翻译 ****/ /**** Translater:Dexter ****/ /**** 本…

ARVE: Augmented Reality Applications in Vehicle to Edge Networks

ARVE:车辆到边缘网中的增强现实应用本文为SIGCOMM 2018 Workshop (Mobile Edge Communications, MECOMM)论文. 笔者翻译了该论文.由于时间仓促,且笔者英文能力有限,错误之处在所难免:欢迎读者批评指正. 本文及翻译版本仅用于学习使用.如果有任何不当,请联系笔者删除. 本文作者包含4位,Pengyuan Zhou@University of Helsinki, Finland:Wenxiao Zhang@Hong Kong Universit…

Mobile Computing: the Next Decade论文 cloudlet薄云

1 Introduction “Information at your fingertips anywhere, anytime” has been the driving vision of mobile computing for the past two decades. Throughrelentless pursuit of this vision, spurring innovations in wireless technology, energy-efficient portab…

获取图片的metaData

获取图片的metaData 获取简易的metaData较为容易,以下是测试图: 以下是本人提供的源码: UIImage+MetaData.h // // UIImage+MetaData.h // PictureInfo // // Created by YouXianMing on 14-8-27. // Copyright (c) 2014年 YouXianMing. All rights reserved. // #import <UIKit/UIKit.h> @interface UI…

How To Start Building Spatially Aware Apps With Google’s Project Tango

How To Start Building Spatially Aware Apps With Google’s Project Tango “Tango can enable a whole new range of applications that simply weren’t possible before.” On a fundamental basis, a smartphone’s camera is not really a camera at all. Sure, it can…

UniMelb Comp30022 IT Project (Capstone) - 2.Vuforia in Unity

2 Vuforia in Unity Tutorial: https://www.youtube.com/watch?v=X6djed8e4n0&t=213s Preparation: Download "Vuforia for Unity" from https://developer.vuforia.com/downloads/sdk?d=windows-30-16-4815&retU import Vuforia into Unity by dragging &q…

Resource Access Based on Multiple Credentials

A collection of multiple user credentials each associated with one of multiple different users is obtained at a device, and one or more of the multiple user credentials are verified. A determination is made as to whether access to a resource is permi…

Xamarin.Forms介绍

On May 28, 2014, Xamarin introduced Xamarin.Forms, which allows you to write user-interface code that can be compiled for the iOS, Android, and Windows devices. The Xamarin.Forms option Xamarin.Forms supports five distinct application platforms: iOS…

[Unity2D]实现背景的移动

在游戏中通常会实现的效果是玩家主角移动的时候,背景也可以跟着移动,要实现这种效果其实就是获取主角的位置,然后再改变摄像机的位置就可以了,这就需要通过脚本来实现.这个脚本添加到摄像机的GameObject上,相当于摄像机的控制器. using UnityEngine; using System.Collections; public class CameraController : MonoBehaviour { public PlayerStateController.playerStates…

OpenGL中各种坐标系的理解[转]

OPENGL坐标系可分为:世界坐标系和当前绘图坐标系. 世界坐标系:在OpenGL中,世界坐标系是以屏幕中心为原点(0, 0, 0),且是始终不变的.你面对屏幕,你的右边是x正轴,上面是y正轴,屏幕指向你的为z正轴.长度单位这样来定: 窗口范围按此单位恰好是(-1,-1)到(1,1),即屏幕左下角坐标为(-1,-1),右上角坐标为(1,1). 当前绘图坐标系:是绘制物体时的坐标系.程序刚初始化时,世界坐标系和当前绘图坐标系是重合的.当用glTranslatef(),glScalef(),…

iphone dev 入门实例5:Get the User Location & Address in iPhone App

Create the Project and Design the Interface First, create a new Xcode project using the Single View Template. Let’s name the project as “MyLocationDemo” and set the project with the following parameters: MyLocationDemo Xcode Project Once you’ve succe…

Taxi Trip Time Winners' Interview: 3rd place, BlueTaxi

Taxi Trip Time Winners' Interview: 3rd place, BlueTaxi This spring, Kaggle hosted two competitions with the ECML PKDD conference in Porto, Portugal. The competitions shared a dataset but focused on different problems. Taxi Trajectory asked participan…

[转]Creating an iPhone Daemon

ref: http://chrisalvares.com/blog/7/creating-an-iphone-daemon-part-1/ http://chrisalvares.com/blog/30/creating-an-iphone-daemon-part-2/ http://chrisalvares.com/blog/35/creating-an-iphone-daemon-part-3/ http://chrisalvares.com/blog/38/creating-an-ipho…

Multi-Projector Based Display Code ---- ImageViewer

Overview Image viewer is a typical application for large display. It makes use of the high-resolution large display and lead to more efficient way for viewing images. Image viewer utilizes the output of the calibration phase (geometric result file an…

3G 4G 5G中的网络安全问题——文献汇总

Modeling and Analysis of RRC-Based Signalling Storms in 3G Networks 还是使用状态机模型来做恶意UE识别 https://san.ee.ic.ac.uk/publications/ggorbil_gelenbe_TETC_15_final.pdf 看他的仿真:In the simulations, we have 1,000 UEs in an area of 2x2 km, which is covered by sevenNo…

Input and Output-The input is all the sources of action for your app

Programs take input and produce output. The output is the result of doing something with the input. Input, transform, output, done. This pattern is easy to see when the program is a UNIX tool. Take a string, count the words, print out the result. But…

从CM刷机过程和原理分析Android系统结构

前面101篇文章都是分析Android系统源代码,似乎不够接地气. 假设能让Android系统源代码在真实设备上跑跑看效果,那该多好.这不就是传说中的刷ROM吗?刷ROM这个话题是老罗曾经一直避免谈的,由于认为没有全面了解Android系统前就谈ROM是不完整的.写完了101篇文章后.老罗认为第102篇文章该谈谈这个话题了,而且选择CM这个有代表性的ROM来谈.目标是加深大家对Android系统的了解. 老罗的新浪微博:http://weibo.com/shengyangluo,欢迎关注! <A…

MQTT --- Retained Message

保留消息定义如果PUBLISH消息的RETAIN标记位被设置为1,则称该消息为“保留消息”: Broker会存储每个Topic的最后一条保留消息及其Qos,当订阅该Topic的客户端上线后,Broker需要将该消息投递给它. A retained message is a normal MQTT message with the retained flag set to true. The broker will store the last retained message and the…

android camera setMeteringArea详解

摘要: 本文为作者原创,未经允许不得转载:原文由作者发表在博客园:http://www.cnblogs.com/panxiaochun/p/5802814.html setMeteringArea() android camera 类里的meteringArea可以用来设置自动白平衡和自动曝光补偿,自动对焦区域. 在此之前,我必须指出百度里关于setMeteringArea的一些错误的文章: http://blog.csdn.net/candycat1992/article/details/21…

Camera.Parameters 参数

public class Camera.Parameters extends Object java.lang.Object ↳ android.hardware.Camera.Parameters Class Overview 类概述相机的服务设置. 使相机参数生效,应用程序必须调用setparameters(相机参数.).例如,在setwhitebalance(字符串)被称为,白平衡不实际上改变了之前setparameters(相机参数.)被称为参数变化的对象. 不同的设备可…

北斗/GPS

北斗/GPS都是用的nmea通用协议. NMEA-0183协议定义的语句非常多,但是常用的或者说兼容性最广的语句只有$GPGGA.$GPGSA.$GPGSV.$GPRMC.$GPVTG.$GPGLL等. 1.NMEA library 开源的NMEA library就够用了,而且至今也没发现有比这个更好的解析库支持: GPGGA, GPGSA, GPGSV, GPRMC, GPVTG 跨平台,支持如下编译环境 Microsoft Windows (MS Visual Studio 8.0, GC…

android Camera 数据流程分析

这篇文章主要针对其数据流程进行分析.Camera一般用于图像浏览.拍照和视频录制.这里先对图像浏览和拍照的数据流进行分析,后面再对视频电话部分进行分析. 1.针对HAL层对摄像头数据处理补充一下 Linux中使用V4L2最为摄像头驱动,V4L2在用户空间通过各种ioctl调用进行控制,并且可以使用mmap进行内存映射常用IOCTL函数介绍:ioctl函数命令参数如下: .vidioc_querycap = vidioc_querycap, //查询驱动功能 .vidioc_enum_f…

Android Camera开发:使用GLSurfaceView预览Camera 基础拍照

GLSurfaceView是OpenGL中的一个类,也是可以预览Camera的,而且在预览Camera上有其独到之处.独到之处在哪?当使用Surfaceview无能为力.痛不欲生时就只有使用GLSurfaceView了,它能够真正做到让Camera的数据和显示分离,所以搞明白了这个,像Camera只开预览不显示这都是小菜,妥妥的.Android4.0的自带Camera源码是用SurfaceView预览的,但到了4.2就换成了GLSurfaceView来预览.如今到了4.4又用了自家的Textur…

使用Socket通信实现Silverlight客户端实时数据的获取(模拟GPS数据，地图实时位置)

原文:使用Socket通信实现Silverlight客户端实时数据的获取(模拟GPS数据,地图实时位置) 在上一篇中说到了Silverlight下的Socket通信,在最后的时候说到本篇将会结合地图.下面就来看看本文实现的功能: Silverlight 与服务器利用Socket通讯,实时从服务器获取数据(本文中的数据是地理坐标),由于没有GPS,所以本文在服务器写了一个构造新坐标的函数(本文是一个三角函数),然后利用Timer组件,实时调用,得到新的坐标,并将新的坐标发送给客户端,客户端接收到发…

Camera.ScreenPointToRay 解析

Unity官方文档: Camera.ScreenPointToRay public function ScreenPointToRay(position: Vector3): Ray; Description Returns a ray going from camera through a screen point. Resulting ray is in world space, starting on the near plane of the camera and going throu…