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This paper proposes a prioritized matching approach for finding corresponding points in multiple calibrated images for multi-view stereo reconstruction. The approach takes a sparse set of seed matches between pairs of views as input and then propagates the seeds to neighboring regions by using a prioritized matching method which expands the most promising seeds first. The output of the method is a...
By taking advantage of recent progress in patch match based stereo [1], we propose a depth-map merging based Multi-View Stereo (MVS) reconstruction method for large-scale scenes. Combining the strength of the accuracy of patch match stereo and the redundancy information provided by multiple views, our method can produce quite satisfactory MVS reconstruction results. Besides, the proposed method could...
This paper presents a novel parameterized variety based architecture for interactive 3DTV and Free viewpoint TV (FTV) applications. The proposed signal representation scheme allows to render free viewpoint images, taking only few sample images of the scene acquired by arbitrary, uncalibrated cameras. We extend the Parameterized Image Variety approach for rendering proposed earlier by Genc and Ponce...
With the advent of glasses-free autostereoscopic handheld displays, a number of applications may be enhanced by 3D perception, particularly mobile video communications. On handheld devices, front-facing stereo cameras can capture the two views necessary for 3D display. However, the short distance between the user and cameras introduces large disparities and other stereoscopic challenges that have...
In this paper, an overview of stereo vision, stereo image processing is introduced as well as a method of navigation based on stereo vision for mobile robot is provided. Making use of 3-d stereo reconstruction, the recognition of visible terrain in front of the mobile robot is solved for successive obstacle avoidance. The area-based stereo reconstruction algorithm which combines the pyramidal data...
Camera calibration is becoming a latest topic in recent years because of its flexibility. In this work a close range stereoscopic technique is used to calibrate stereoscopic camera. The camera calibration is estimated the those parameters. It is an indispensable step for medical photogrammetric or image guided applications. The quantitative information should derive from the images. Non linear optimization...
Even though the sampling grid of a digital camera is uniform and rectangular, the depth information reconstructed from multi-camera samples is neither uniform nor rectangular due to the rotations and translations of the camera coordinate systems with respect to each other. In order to facilitate further processing, e.g. compression of multi camera depth data, resampling of non-uniform multi-camera...
According to dissemination of appliance such as 3D TV and 3D games, visual fatigue estimation of 3D contents has been focused. EOG(Electro-ocular gram) is one of popular methods to measure the movement of the eye for visual fatigue estimation. However, voltage of EOG signal is depending on the eye shape or physiological state of the subject and its basis voltage is changed by the small movements of...
One major benefit of multi-touch interaction is the possibility for passive observers to easily follow interactions of active users. This paper presents a novel system which allows remote users to perform collaborative multi-touch interaction in a remote face-to-face situation with shared virtual material seamlessly integrated in a videoconference application. Each user is captured by a camera located...
In recent years, 3D TVs and the 3D video contents are widely exploited for many people. Due to these developments, many people will want to shoot the 3D contents with the stereoscopic camera, and share these contents by uploading them to the UCC website. However, some people can experience the visual discomfort and fatigue when they are watching the 3D video. In the manufacturing process of low-price...
Stereoscopic viewing of 3D content brings with it a variety of complex perceptual quality issues. For the percept of depth to be convincing, consistent, and comfortable, many parameters throughout the imaging pipeline must to be matched correctly. However, tradeoffs are inevitable for practical reasons, which may lead to various distortions. This paper reviews the issues from an engineering perspective,...
In recent years, 3D TVs and the 3D video contents such as movie, commercial film, or drama are widely exploited for many people. Due to these developments, many people will want to make the 3D contents with 3D cameras, and share these contents by uploading them to the UCC website. However, some people can experience the visual discomfort and fatigue when they are watching 3D video contents on the...
This paper presents an experimental study and investigation of errors in 3D reconstruction from views in a canonical stereo camera setup with point correspondences of a grid known apriori. The objective of investigation is to find the estimate of P by Direct Linear Transform (DLT) solution i.e by minimizing the algebraic error (║AP║) subjected to normalizing constraint ║P║=1 and then further minimizing...
This paper proposes a method to construct a three-dimensional (3D) model of an outdoor scene containing a large amount of information by combining local stereo images which are acquired from multiway. It is difficult to reconstruct outdoor scenes accurately using a single view of a stereo camera because the distance to a target is very far compared with the stereo camera's baseline length. Therefore...
When creating a multi-view image for multi-view 3D display with one camera, the camera has to be moved from one viewpoint to another viewpoint. However, this method takes long time and can not get images of a moving object. In this paper, we proposed the method for capturing a multi-view image by one step. In order to capture a multi-view image, the lenticular lens is used in our proposed system....
Stereoscopic 3D (S3D) has reached wide levels of adoption in consumer and professional markets. However, production of high quality S3D content is still a difficult and expensive art. Various S3D production tools and systems have been released recently to assist high quality content creation. This paper presents a number of such algorithms, tools and systems developed at Disney Research Zurich, which...
This paper presents a novel method for generating multi-view video. The video can be viewed without wearing a pair of glasses which is more suitable for outdoor bulletin board of kiosk applications. One of the major aspects of the new method is that the depth estimation is not required. Hence, no depth warp induced holes will be introduced. Our method first extracts feature correspondence from a Left/Right...
The addition of stereoscopic navigation to an image-based virtual environment is a desirable enhancement. This can be implemented by sampling the scene with a number of stereoscopic panoramas. In this regard, clusters of panoramas in a known spatial arrangement can be used to render omnistereoscopic views. However, slight misalignments between panoramas introduced by single-shot panoramic cameras...
In this paper, we present the design, implementation, and evaluation of a joint stereo camera-head mounted display (HMD) system with the ability to stream live video into binocular display. With this device we intend to identify specific constrains of human stereo vision such as the minimum conditions for interocular distance and binocular color rivalry. We also explore the possibility of tele-operation...
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