ROS runs pi_face_tracker with USB camera in notebook for face recognition

Face recognition is a popular application in robotic applications. Some examples of Haar algorithm are found on the internet. They can run under opencv and recognize normally. They plan to run in ros. After searching on the internet, they find out. pi_face_tracker This example is an application in Pi robot. Pi robot is a mobile robot with a ...

Posted on Tue, 25 Dec 2018 11:09:07 -0800 by Nuser

Create your own version iteration support Asp.Net Web Api Route

In the current mainstream architecture, we increasingly see the existence of web Api, compact, flexible, based on Http protocol, which makes it serve as a good service endpoint in more and more micro-service projects or mobile projects. problemTake Asp.Net Web Api as an example, with the expansion of business and product iteration, our web api ...

Posted on Thu, 20 Dec 2018 18:33:05 -0800 by isiah

JS introductory tutorial - 14-js HTML DOM, DOM element search method, JS operation on HTML

Catalog Catalog HTML DOM DOM TREE JS Operation on DOM Search for DOM elements According to ID According to the label name According to Name According to class Getting HTML elements Get the body element Common methods for mobile terminals (incompatible under IE6-8) Changes to HTML Changing HTML output stream Changing ...

Posted on Thu, 20 Dec 2018 17:27:05 -0800 by gapern

Common tools used in development - obtaining unique identification of devices, UDID, UUID, keychain, saving UUID, judging network type, etc.

UDID Full name: Unique Device Identifie Description: UDID, the device unique identifier, is the unique number of each iOS device except the serial number. UDID is only device-related. It is used to distinguish each unique iOS device (including the iPhone, the iPad, etc.) and consists of 40 characters of letters and numbers. Functi ...

Posted on Thu, 20 Dec 2018 09:21:05 -0800 by sfarid

iOS error terminate_handler unexpectedly threw an exception

Today I met a very wonderful pit, but I have to admit that it is also a bug. Because I feel that this is probably one in ten thousand chance of stepping on a pit, so I want to record this. If there's anyone like me who's been pitted for no reason, hey, hey............................................. In the morning, a company girl c ...

Posted on Thu, 20 Dec 2018 07:00:05 -0800 by jonstu

Zero-base python brush leetcode -- 2. Add Two Numbers

Algorithms are very important, but you need to learn python every day, so you want to use python to brush the algorithmic problems of leetcode. Let's start the zero-base python brush leetcode tour with me. 2. Add Two Numbers image.png First, let's skip some of python's basics. If you're not a little white, please skip it directly. linke ...

Posted on Wed, 19 Dec 2018 01:33:04 -0800 by donald

Differences in UI manipulation effects between Handler.Post(Runnable) and View.Post(Runnable) in Source Parsing Activity Lifecycle onResume

In general, there will be a need to get the size of Ui control in Activity startup or refresh data after the UI drawing is completed. We all know that after the UI drawing is completed, the timing is the best, and it will not block the main thread leading to the failure of Carton or UI control parameter acquisition. May ...

Posted on Tue, 18 Dec 2018 16:39:04 -0800 by billynastie

Android System (57) - - Functional Introduction and UI Layout Implementation of Android System UI-System UI

Function Introduction and UI Layout Implementation of Android UI-System UI Preface Android In the process of ROM development, it is inevitable to involve the modification of SystemUI. Some work has been done in this area before. Now, I am going to introduce SystemUI according to the following chapters, so as to make a hol ...

Posted on Mon, 17 Dec 2018 20:48:04 -0800 by esukf

JQuery Mobile Learning Notes (6) - jQuery Mobile API

The introduction of the page section is basically over. With the framework, we need to consider data communication and interaction in the page. jQuery Mobile (JQM) uses JavaScript to communicate with frameworks and API s for content management. 1. Document events (document).bind('mobileinit', function() { &n ...

Posted on Sun, 16 Dec 2018 12:24:03 -0800 by noguru

Play Android Camera Development (2): Preview Camera Basic Photo demo with TextureView and Surface Texture

Google has launched TextureView since Android 4.0. Why? In order to make up for the shortcomings of Surface View, and on the other hand, to balance GlSurface View, of course, this is my guess. The relationship between TextureView, Surfaceview, SurfaceTexture and GLSurfaceView will be specially analyzed after we launch GLSurface ...

Posted on Sun, 16 Dec 2018 09:27:04 -0800 by greencoin