3D data acquisition using active stereo based on spatial neighbourhood technique

Huang

Liu

2015

IEEE Trans. VLSI Syst.

In this paper, depth map estimation circuit design based on structured light is proposed, wherein a projection light source and an image sensor are utilized in combination to achieve a depth map estimation chip, an accurate, low complex circuit is presented to measure the depth value of an object, and it is applied to 3-D television through depth imagebased rendering technology to implement a multiview image display system. The chip that integrates image preprocessing, object segmentation, edge detection, and depth map quantization algorithms performs depth map estimation of objects accurately and quickly. Besides, the effect of human visual sensing effect is taken into consideration and the presented chip achieves a depth map quantified according to the nonlinear depth value in compliance with human visual system. Measurement results show that the chip that is verified using a Taiwan Semiconductor Manufacturing Company 0.18-µm 1P6M CMOS process operates at 83.3 MHz with 19 845 gate counts and performs real time depth map estimation. Index Terms-3-D television (3-DTV), depth map estimation, structured light.

Section: Quantization Architecture Designmentioning

confidence: 99%

Section: ) Quantizationmentioning

confidence: 99%

“…We will perform a comparison with 3-D Data acquisition using active stereo based on spatial neighborhood technique proposed in [18].…”

Section: Quantization Architecture Designmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

See 2 more Smart Citations

VLSI Design of a Depth Map Estimation Circuit Based on Structured Light Algorithm

Huang

Liu

2015

IEEE Trans. VLSI Syst.

“…In order to generate an edge map with better quality, we must eliminate these noise spots. Because the size of noise is much smaller than the edge information, a morphological filter [6] could be used to avoid the damage of a large amount of the edge information and to remove the noise effectively. Therefore, the Opening operator was adopted to eliminate noise spot.…”

Section: Edge Extractionmentioning

confidence: 99%

3DTV depth map reconstruction based on structured light scheme

2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)

Huang

Shen

2013

In this paper, we proposed an algorithm of 3DTV depth map reconstruction based on structured light scheme. We used a projector to project the structured light scheme pattern and captured the pattern by digital camera. After a series of edge extraction algorithm which contains bi-direction Sobel operator, morphology filter, edge thinning algorithm, pattern matching, and gradient calculation, we built the gradient database to convert gradient to physical distance to replace traditional complex triangulation algorithm. That is more efficient and accurate. In addition, we took humans' perception into consideration. It not only output the physical distance depth map but also quantified it. Moreover, through DIBR technology, we perceived three-dimensional effects on 3D display.

[Invited Paper] 3D Display and Interactive Technology in Metaverse

Lee

et al. 2022

MTA

The Metaverse is a network of 3D virtual worlds focusing on social connections, and it explores a persistent and decentralized online 3D virtual environment. This virtual environment will allow people to enter the artificial virtual world through 3D display technology, 3D interactive technology, 3D depth sensing technology, virtual reality glasses, augmented reality glasses, mobile phones, personal computers and electronic game consoles 1)2) .The Metaverse includes the physical world and the virtual world. The limitations of the current use of the Metaverse mainly come from the technical limitations of the hardware devices and sensors required to interact with the real-time virtual environment. Among these devices, 3D Display and Interactive Technology plays an important role in the Metaverse. The establishment of a 3D virtual environment originates from 3D display and interactive technology. In response to the coming of the Metaverse Era, this paper will present a detailed discussion of 3D display and interactive technology.The paper consists of six sections. Section 2 reviews the 3D display and depth sensing technology in the literature. Section 3 presents the 3D interactive technology. In Section 4, the immersive experience in Metaverse is presented. Then, the five pillars of the Metaverse is addressed in Section 5. Last, the conclusions are given in Section 6. 3D Display and Depth Sensing TechnologySince the release of the movie "Avatar," 3D movies have sprung up. The world's major home appliance manufacturers have also successively launched a series of televisions (TVs), handheld video games, 3D advertising billboards, and other devices that support stereoscopic display 3) , bringing 3D technology into consumers' lives.These devices equipped with stereoscopic images not only drive the overall development trend of academic research and industry but have also become the trend of the future.