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Restoring sight to the visually impaired poses significant challenges across multiple disciplines. In this demonstration, we present a prototype vision processing system to perform the external processing and to provide a technical user interface for a vision prosthesis. The system transforms an input video stream into intensity values suitable for transmission to a stimulation array implanted within...
Free viewpoint video enables the visualisation of a scene from arbitrary viewpoints and directions. However, this flexibility in video rendering provides a challenge in 3D media for achieving spatial synchronicity between the audio and video objects. When the viewpoint is changed, its effect on the perceived audio scene should be considered to avoid mismatches in the perceived positions of audiovisual...
In this article, we propose a motion vector based feature set for Content Based Copy Detection (CBCD) of video clips. Motion vectors of image frames are one of the signatures of a given video. However, they are not descriptive enough when consecutive image frames are used because most vectors are too small. To overcome this problem we calculate motion vectors in a lower frame rate than the actual...
In this paper, the road information collection systems and processing algorithms of video signal was researched based on vision sensor, the processor of Smart car used MC9S12XS128, the hardware of Sampling system using OV7620 digital camera; The key of software part is the turn of double-array storage and processing technology, which made the Acquisition system has higher efficiency, more in line...
This paper describes a novel method based on self-adaptive subdivision mesh for geometry correction of multi-cameras in a panoramic video system. The system hardware consists of an array of six board cameras pointing outwardly. Digitally combining synchronized frames from each camera, a wide-field panoramic video can be created. Using sparse initial corresponding points between the ideal target surface...
Very large format video or wide-area motion imagery (WAMI) acquired by an airborne camera sensor array is characterized by persistent observation over a large field-of-view with high spatial resolution but low frame rates (i.e. one to ten frames per second). Current WAMI sensors have sufficient coverage and resolution to track vehicles for many hours using just a single airborne platform. We have...
The spherical area where sound pressure is high on a partial target made by Speaker Array is called Sound Spot. In this paper, we calculate amount of characteristic by using HLAC for image in video sequence. We aim to make a peculiar person hear the sound of an individual content in this study.
A fast duplicate video detection system based on camera transitional behavior and the suffix array data structure is proposed in this work. The main idea is to match video clips according to their temporal structures, and frames corresponding to unique events are marked as anchor frames. To simplify the detection process, we use the camera transitional behavior to indicate unique events. Specifically,...
This paper presents a method that jointly performs synthesis and object segmentation of free-viewpoint video using multi-view video as the input. This method works efficiently and online by sharing a calculation process between the synthesis and segmentation steps. The matching costs calculated through the synthesis step are adaptively fused with other cues depending on the reliability in the segmentation...
This work introduces a new analysis procedure to measure availability of information to render a new view, given a set of views from a camera in linear motion, or a linear array of cameras. The given set can be interpolated to generate a new view using a crossed-slit camera model. The analysis consists of finding regions in the neighborhood of the linear camera positions, where a full view, partial...
In this paper, we present a geometrical compensation method for a calibrated multi-view video that is captured by the one-dimensional (1-D) parallel or arc camera array. Since the multi-view video may include geometical errors, we define a compensating transformation based on a two-dimensional (2-D) homography. After we apply the compensating transformation, we obtain all the image planes which are...
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