Video imaging system based on multi-scale camera array, and video processing method

A camera array and video processing technology, which is applied in image data processing, closed-circuit television system, TV system components, etc., can solve the problems of low resolution and high video resolution, and achieve simple hardware structure and low construction cost , the effect of reducing complexity

Active Publication Date: 2018-02-02
BEIJING ZOHETEC CO LTD
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  • Application Information

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Problems solved by technology

But VR devices need very high video resolution to achieve good results, otherwise there will be very obvi

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  • Video imaging system based on multi-scale camera array, and video processing method
  • Video imaging system based on multi-scale camera array, and video processing method
  • Video imaging system based on multi-scale camera array, and video processing method

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] High-resolution photography or 360-degree panoramic video has been achieved by stitching a large number of regularly spaced cameras, the main challenges of which are manual implementation, precise structure, and sufficient overlapping areas in adjacent views. Parallax between cameras can cause disturbing artifacts such as video misalignment and discontinuity. Video stitching systems using unstructured camera arrays can achieve fine layout and calibration, but require large overlapping areas for sparse feature matching, and consume a large amount of computing resources in space and time optimization to reduce parallax-induced Artifacts. The gigapixel camera uses a multi-scale imaging design, a spherical objective lens produces an image of the entire scene, and 98 micro-optical cameras relay part of the image to their own sensors. Howeve...

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Abstract

The invention provides a video imaging system based on a multi-scale camera array, and a video processing method. The system comprises a control cloud platform, a video processing unit and a camera array; the camera array comprises a plurality of local cameras and at least one global reference camera; the global reference camera collects a low-resolution global reference video of a predetermined scene by using a short-focus lens, and the plurality of local cameras separately collect different local high-resolution videos in the predetermined scene by using long-focus lenses; the video processing unit is used for finding a corresponding area in the global reference camera for each local camera; aligning the local videos to the corresponding areas in the global reference video by using a nonuniform image distortion algorithm; and embedding the distorted high-resolution local videos in the low-resolution global reference video to form a global video with a relatively high resolution.

Description

technical field [0001] The invention relates to the field of image and video acquisition and processing, in particular to a video imaging system and video processing method based on a multi-scale camera array. Background technique [0002] In recent years, detection and recognition algorithms in computer vision have made huge breakthroughs in performance. However, the performance of vision algorithms still essentially depends on the quality of the input image and video data, and the capture of image and video is limited by the time-space-bandwidth product of the lens and sensor in the optical imaging system. Under real-time frame rate acquisition, the spatial resolution is difficult to break through 100 million pixels, and there is an incongruous contradiction between the wide field of view and high detail resolution. Therefore, it is difficult for visual computing to take into account both the range of detection and recognition and the accuracy of detection and recognition....

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Application Information

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IPC IPC(8): H04N5/232H04N5/262H04N7/18G06T3/40G06T5/00
CPCH04N5/2624H04N7/181G06T3/4038G06T5/009H04N23/67H04N23/80H04N23/698
Inventor 方璐刘烨斌王好谦袁肖赟崔宇浩
Owner BEIJING ZOHETEC CO LTD
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