real-time

问题 I want to find custom shape in OpenCV. Shape is previously defined. I want to detect if this shape is equal or not equal to the current shape using WebCam in real time. How can I do that? How to compare pre-defined custom shape and current shape? 回答1: As the commenters have eluded, you can use template matching to detect custom shapes. So What Is Template Matching? Template matching is a technique in digital image processing for finding small parts of an image which match a template image. It

问题 I am working on a app which has following requirements : Record real time audio from iOS device (iPhone) Encode this audio data to Opus data and send it to server over WebSocket Decode received data to pcm again Play received audio from WebSocket server on iOS device(iPhone) I've used AVAudioEngine for this. var engine = AVAudioEngine() var input: AVAudioInputNode = engine.inputNode var format: AVAudioFormat = input.outputFormat(forBus: AVAudioNodeBus(0)) input.installTap(onBus:

问题 It seems that github uses a polling server for real time notifications (live.github.com) on its web interface. It seems like the technology is not Websocket based neither XHR-polling. How is it developed ? 回答1: It seems they use HTML5 Server-Sent Events. I found it after a while by looking at the request to live.github.com that accepts "text/event-stream" 来源： https://stackoverflow.com/questions/23367615/how-github-web-push-notifications-works

问题 It seems that github uses a polling server for real time notifications (live.github.com) on its web interface. It seems like the technology is not Websocket based neither XHR-polling. How is it developed ? 回答1: It seems they use HTML5 Server-Sent Events. I found it after a while by looking at the request to live.github.com that accepts "text/event-stream" 来源： https://stackoverflow.com/questions/23367615/how-github-web-push-notifications-works

问题 It seems that github uses a polling server for real time notifications (live.github.com) on its web interface. It seems like the technology is not Websocket based neither XHR-polling. How is it developed ? 回答1: It seems they use HTML5 Server-Sent Events. I found it after a while by looking at the request to live.github.com that accepts "text/event-stream" 来源： https://stackoverflow.com/questions/23367615/how-github-web-push-notifications-works

问题 It seems that github uses a polling server for real time notifications (live.github.com) on its web interface. It seems like the technology is not Websocket based neither XHR-polling. How is it developed ? 回答1: It seems they use HTML5 Server-Sent Events. I found it after a while by looking at the request to live.github.com that accepts "text/event-stream" 来源： https://stackoverflow.com/questions/23367615/how-github-web-push-notifications-works

问题 I am trying to build a real-time stock application. Every seconds I can get some data from web service like below: [{"amount":"20","date":1386832664,"price":"183.8","tid":5354831,"type":"sell"},{"amount":"22","date":1386832664,"price":"183.61","tid":5354833,"type":"buy"}] tid is the ticket ID for stock buying and selling; date is the second from 1970.1.1; price/amount is at what price and how many stock traded. Reuirement My requirement is show user highest/lowest price at every minute/5

问题 I am trying to build a real-time stock application. Every seconds I can get some data from web service like below: [{"amount":"20","date":1386832664,"price":"183.8","tid":5354831,"type":"sell"},{"amount":"22","date":1386832664,"price":"183.61","tid":5354833,"type":"buy"}] tid is the ticket ID for stock buying and selling; date is the second from 1970.1.1; price/amount is at what price and how many stock traded. Reuirement My requirement is show user highest/lowest price at every minute/5

问题 I am developing a real-time text editor with paragraph locking property similar to https://quip.com/. in socket.io and nodejs . It means when you write onto a given paragraph, other collaborators cant edit it. Moment you hit enter or move cursor to a new line that paragraph becomes Editable for other Collaborators . I am quite stuck after this. I am thinking a nice approach to move further. Suggestions please. Below is my code which works perfectly. Till now i can get list of all

问题 There's not much on this subject, perhaps because it isn't a good idea in the first place. I want to create a realtime audio synthesis/processing engine that runs on the GPU. The reason for this is because I will also be using a physics library that runs on the GPU, and the audio output will be determined by the physics state. Is it true that GPU only carries audio output and can't generate it? Would this mean a large increase in latency, if I were to read the data back on the CPU and output