Distance Measurement from Single Image Based on Circles

Jiang, Nan; Jiang, Zhongding

doi:10.1109/icassp.2007.366031

Cited by 8 publications

(4 citation statements)

References 7 publications

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“…Measuring distance in indoor/outdoor scene from the captured image has recently attracted much attention [1,2,3]. Those methods are based on projective geometry [4] and easier to use than on-the-spot measuring methods that use active devices (e.g., ultrasonic device, laser range finder and structured light device).…”

Section: Introductionmentioning

confidence: 99%

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Distance Measurement in Panorama

Jiang

Wang

et al. 2007

2007 IEEE International Conference on Image Processing

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Computing world distances of scene features from the captured images is a common task in image analysis and scene understanding. Previous projective geometry based methods focus on measuring distance from one single image. Hence, the scope of measurable scene is limited by the field-of-view (FOV) of one single camera. In this paper, we propose one method of measuring distances of line segments in real world scene using panorama representation. With a full view panorama, the scope of measurable scene is increased and can fully cover the sphere of 360 × 360 FOV. With panorama representation, distance of long-range features, which can not be fully captured by a single image, can be measured from the panoramic image. A prototype system called PanoMeasure is developed for enabling user to interactively measure the distances of line segments. Experiments with simulated data and real measurement results verify that the method offers high accuracy.

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Section: Introductionmentioning

confidence: 99%

“…Existing projective geometry based methods focus on measuring distance from a single image [1,2,3]. The scope of measurable scene is limited by the field-of-view (FOV) of the camera.…”

Section: Introductionmentioning

confidence: 99%

Distance Measurement in Panorama

Jiang

Wang

et al. 2007

2007 IEEE International Conference on Image Processing

Self Cite

View full text Add to dashboard Cite

show abstract

“…Measuring world distance from captured image has recently attracted much attention [1,2,3]. These projective geometry based methods focus on measuring distance from a single image [1,2,3].…”

Section: Introductionmentioning

confidence: 99%

“…These projective geometry based methods focus on measuring distance from a single image [1,2,3]. Since a single perspective image of common camera provides limited field-of-view (FOV), long-range scene features that are partially captured by the camera can not be measured.…”

Section: Introductionmentioning

confidence: 99%

Distance measurement in panoramic video

Wang

Jiang

2009

2009 IEEE International Conference on Multimedia and Expo

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Computing world distances of scene features from the captured images is a common task in image analysis and scene understanding. Projective geometry based methods focus on measuring distance from one single image, the scope of measurable scene is limited by the field-of-view (FOV) of one single camera. With a full view panorama, the scope of measurable scene is no longer limited by FOV. However, the scope of measurable scene is limited by the fixed capture location of a single panorama. In this paper, we propose one method of measuring distances of line segments in real world scene using panoramic video representation. The scope of measurable scene is largely extended without the limitation of FOV and a fixed capture location. A prototype system called PVMeasure is developed to allow user to interactively measure the distances of line segments in a panoramic video. Experiment results verify that the method offers good accuracy.

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