Method, system and computing device for generating high-resolution depth map

Abstract

The invention belongs to the field of computer vision, and provides a method, a system and a computing device for generating a high-resolution depth map. The method and the system adopt an up-sampling algorithm to convert a low-resolution depth map into a high-resolution rough depth map, and then a skeleton map of the high-resolution rough depth map is further obtained. Then a low-resolution brightness map is utilized, and blocks which are most similar to each overlapping skeleton block in the skeleton map are searched in the low-resolution depth map. After that, a weighted stitching mode is adopted to fill the searched blocks into the corresponding positions of the high-resolution rough depth map so that the high-resolution depth map is obtained. As pixel information in the low-resolution depth map is supplemented to the high-resolution rough depth map, error depth data generated on the skeleton edge caused by data smoothing effect is corrected, a defect of simply applying the up-sampling mode is compensated and thus the obtained final high-resolution depth map is great in display effect. Besides, computing speed is fast.

Description

technical field [0001] The invention belongs to the field of computer vision, and in particular relates to a method, system and computing device for generating a high-resolution depth map. Background technique [0002] In the field of computer vision, the depth map is used to represent the distance of each point in the scene relative to the camera, that is, each pixel in the depth map represents the distance between a point in the scene and the camera. Since the commercial application of Microsoft's kinect depth image sensor, more services and products based on three-dimensional depth images have emerged, such as Microsoft's xbox One somatosensory game console and Leap motion's somatosensory controller. [0003] Most of the depth images collected by current depth image sensors are low-resolution depth maps. In order to obtain high-resolution depth maps, the existing technology uses upsampling algorithms such as bilateral Upscaling is performed to directly convert a low-reso...

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Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a method for generating a high-resolution depth map, aiming at solving the problem of using an up-sampling algorithm to directly convert a low-resolution depth map into a required high-resolution depth map in the prior art. The contour edge in the resolution depth map will produce wrong depth data due to the data smoothing effect, and the display effect is poor

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