Video jittering prevention method and equipment

Abstract

An embodiment of the invention provides a video jittering prevention method and equipment. The video jittering prevention method is applied to video capture equipment which comprises a motion sensor, a CPU (central processing unit), an IS (image sensor) and an ISP (image signal processor). The method includes: the CPU acquires motion information, acquired by the motion sensor, of the video capture equipment, wherein the motion information includes a rotation angle of the video capture equipment; the CPU determines output coordinates of a first output image according to the rotation angle, wherein the first output image is an output image of the IS; the IS outputs the first output image to the ISP according to the output coordinates of the first output image. By adoption of the method, all pixels of the IS are completely used, resolution loss of ISP output images is avoided, high-quality video jittering prevention is realized, video frame rate is increased, and power consumption of the video capture equipment is reduced.

Description

technical field [0001] Embodiments of the present invention relate to image processing technologies, and in particular, to a video anti-shake method and device. Background technique [0002] During the video shooting process, especially the handheld mobile shooting, the video capture device will shake to a certain extent, which will cause the recorded video picture to be unstable and affect the video viewing experience. Therefore, video anti-shake technology is a basic requirement of video capture equipment. Using this technology can make the recorded video more stable. With the widespread use of numerous video capture devices, such as digital cameras, camera phones, and video surveillance equipment, video anti-shake technology is becoming more and more important. [0003] At present, some manufacturers have developed optical anti-shake lenses. The principle is to use sensors to sense the shake of the video capture device, dynamically adjust the lens, and compensate for the...

AI Technical Summary

Problems solved by technology

[0005] However, in the above-mentioned digital video anti-shake technology, the resolution of the output image after the video anti-shake processing is usually smaller than the resolution of the input image, which will cause a loss of resolution, and the higher the anti-shake amplitude requirement, the greater the resolution loss

In this way, if you want to increase the resolution of the output image, you must increase the resolution of the input image, which requires the IS to output an image with a larger resolution. As the processor for processing the image output by the IS, the ISP must process a larger resolution Higher-rate images (i.e., the ISP will slow down processing images, thus consuming more power), which will result in lower video frame rates or increased power consumption of the video capture device

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