3D video compression with the H.264 codec

Advances in 3D scanning have enabled the real-time capture of high-resolution 3D video. With these advances comes the challenge of streaming and storing this 3D video in a manner that can be quickly and effectively used. To do this, different approaches have been taken, a popular one being image based encoding, which projects from 3D into 2D, uses 2D compression techniques, and then decodes from 2D back to 3D. One such technique that does this is the Holovideo technique, which has been shown to yield great compression ratios. However, the technique was originally designed for the RGB color space and until recently could not be used with codecs that use the YUV color space such as the H.264 codec. This paper addresses this issue, generalizing Holovideo to the YUV color space, allowing it to leverage the H.264 codec. Compression ratios of over 352 : 1 have been achieved when comparing it to the OBJ file format, with mean squared error as low as .204% making it a viable solution for 3D video compression

Three-bit representation of three-dimensional range data

Our previous research has shown that 3D range data sizes can be substantially reduced if they are converted into regular 2D images using the Holoimage technique. Yet, this technique requires all 24 bits of a standard image to represent one 3D point, making it impossible for a regular 2D image to carry 2D texture information as well. This paper proposes an approach to represent 3D range data with 3 bits, further reducing the data size. We demonstrate that more than an 8.2∶1compression ratio can be achieved with compression root-mean-square error of only 0.34%. Moreover, we can use another bit to represent a black-and-white 2D texture, and thus both 3D data and 2D texture images can be stored into an 8 bit grayscale image. Both simulation and experiments are presented to verify the performance of the proposed technique

3D video compression with the H.264 codec

Advances in 3D scanning have enabled the real-time capture of high-resolution 3D video. With these advances comes the challenge of streaming and storing this 3D video in a manner that can be quickly and effectively used. To do this, different approaches have been taken, a popular one being image based encoding, which projects from 3D into 2D, uses 2D compression techniques, and then decodes from 2D back to 3D. One such technique that does this is the Holovideo technique, which has been shown to yield great compression ratios. However, the technique was originally designed for the RGB color space and until recently could not be used with codecs that use the YUV color space such as the H.264 codec. This paper addresses this issue, generalizing Holovideo to the YUV color space, allowing it to leverage the H.264 codec. Compression ratios of over 352 : 1 have been achieved when comparing it to the OBJ file format, with mean squared error as low as .204% making it a viable solution for 3D video compression.This is a conference proceeding from Three-Dimensional Image Processing (3DIP) and Applications II 8290 (2012): 1, doi:10.1117/12.907503. Posted with permission. Copyright 2012 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.</p