A video coding method and device with a cloud platform
A video coding and pan-tilt technology, which is applied in the fields of digital video signal modification, image communication, electrical components, etc., can solve the problems of low video quality, inaccurate scene detection, and unreasonable allocation of image coding resources, and achieves a high accuracy rate. Effect
Active Publication Date: 2019-01-01
CHINA MOBILE COMM GRP CO LTD
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[0006] The object of the present invention is to provide a video coding method and device with a pan / tilt, which is used to solve the problem that the detection of scene switching during current video coding is carried out under the condition of unknown input source, and the scene detection is inaccurate, resulting in image Coding resources cannot be allocated reasonably, and the quality of the encoded video is low
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[0046] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.
[0047] The embodiment of the present invention is used to solve the problem that the current detection of scene switching during video encoding is performed when the input source is unknown, and the scene detection is inaccurate, resulting in unreasonable allocation of image encoding resources and low quality of the encoded video. Problem, the embodiment of the present invention provides a video encoding method with PTZ, such as figure 1 As shown, the video encoding method includes:
[0048] Step 10, receiving the video data collected by the acquisition device arranged on the pan-tilt, and receiving an indication message for instructing the pan-tilt to rotate or stop rotating;
[0049] Step 11: Determine a scene change detection method and a GOP mode ac...
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The intention relates to a cloud-platform-based video coding method and apparatus. The video coding method comprises: video data collected by a collection device arranged on a cloud platform are received and an indication message for indicating the cloud platform to make rotation or stop rotation is received; according to the indication message, a scene changing detection way and a GOP mode are determined, and a scene changing frame in the video data is detected according to the currently determined scene changing detection way; and the video data are coded based on the determined GOP mode and the determined scene changing frame. According to the method provided by the embodiment of the invention, the motion of the cloud platform is associated with scene changing of coding equipment; and the scene changing frame is detected by selecting different scene changing detection ways under the circumstances that the cloud platform rotates and does not rotates, so that accuracy for obtaining a key frame can be improved; and a GOP mode with variable lengths is employed in rotation of the cloud platform, so that a better video quality can be obtained and the calculation costs can be lowered.
Description
technical field [0001] The invention relates to the multimedia field of network and communication, in particular to a video encoding method and device with a cloud platform. Background technique [0002] The uncompressed original video sequence contains a huge amount of data, making it difficult to transmit directly under the existing channel bandwidth conditions. Therefore, in video communication, it is often necessary to compress the video sequence at the encoding end. Since the video compression at the encoding end is usually lossy compression, the quality of the compressed image will decrease compared with the original image before compression. In order to achieve a reasonable and effective balance between limited channel bandwidth and compressed image quality, reasonable and effective code rate control must be carried out at the encoding end. [0003] When assigning code rate resources to each frame image in the image group GOP, only the complexity of each frame image...
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IPC IPC(8): H04N19/142H04N19/114H04N19/14
Inventor 张世俊张俭
Owner CHINA MOBILE COMM GRP CO LTD