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US 2003/0193658 A1Published application
Ranger finder device and camera
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsKenya Uomori, Takeo Azuma, Atsushi Morimura
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AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsKenya Uomori, Takeo Azuma, Atsushi Morimura
Estimating the term…
A range finder device, for measuring, when a plurality of projected lights having radiation patterns whose light intensity differs three-dimensional space-wise are irradiated onto an object from a light source on a time-sharing basis to image-pick up reflected light of the projected light from the object with a camera, a distance using the light intensity of an image picked up, characterized in that, with respect to each of a plurality of surfaces including the center of the light source and the center of a lens, there is obtained, in advance, relation between an angle of each projected light from the light source and light intensity ratio in each surface, characterized in that, at the time of actual distance measurement, light intensity of each pixel of the camera is measured, and on the basis of the light intensity thus measured, and relation between the angle and the light intensity ratio on a predetermined surface corresponding to a coordinate position of the pixel measured, there is obtained the angle corresponding to the light intensity of the predetermined pixel thus measured, and characterized in that, on the basis of these light intensity measured, the angles obtained and further two-dimensional coordinate position information on the predetermined pixel on the image, a distance to the object is calculated.
A range finder device, for measuring, when a plurality of projected lights having radiation patterns whose light intensity differs three-dimensional space-wise are irradiated onto an object from a light source on a time-sharing basis to image-pick up reflected light of said projected light from said object with a camera, a distance using the light intensity of an image picked up,
A range finder device, characterized by comprising:
A range finder device, characterized by comprising:
A range finder device, characterized by comprising:
A camera for shape measuring or object extracting, having light-emitting means for irradiating an object with projected light having a specified radiation pattern, for picking up reflected light of said light-emitting means from said object to obtain a depth image using light intensity of the image picked up, characterized in that said camera has such a structure that a distance between said light-emitting means and an image-pickup lens is variable, and characterized in that the interval between said light-emitting means and said image-pickup lens can be taken sufficiently large during the use.
A camera for shape measuring or object extracting, having light-emitting means for irradiating an object with projected light having a specified radiation pattern, for picking up reflected light of said light-emitting means from said object to obtain a depth image using light intensity of the image picked up, characterized in that said light-emitting means has such a structure that shading plates each having a hole are arranged in front of each of a plurality of straight-line shaped light sources arranged, and each hole in the respective shading plates is deviated from each other position-wise, and said plurality of light sources emit light on a time-sharing basis.
A camera for shape measuring or object extracting, having light-emitting means for irradiating an object with projected light having a specified radiation pattern, for image-picking up reflected light of said light-emitting means from said object to obtain a depth image using light intensity of the image picked up,
A camera for shape measuring or object extracting, having light-emitting means for irradiating an object with projected light having a specified radiation pattern, for image-picking up reflected light of said light-emitting means from said object to obtain a depth image using light intensity of the image picked up, characterized by comprising:
A camera for shape measuring or object extracting, having light-emitting means for irradiating an object with projected light having a specified radiation pattern, for image-picking up reflected light of said light-emitting means from said object to obtain a depth image using light intensity of the image picked up, comprising:
The camera for shape measuring or object extracting, having light-emitting means for irradiating an object with projected light having a specified radiation pattern, for image-picking up reflected light of said light-emitting means from said object to obtain a depth image using light intensity of the image picked up, characterized by comprising:
A camera for shape measuring or object extracting, having light-emitting means for irradiating an object with projected light having a specified radiation pattern, for image-picking up reflected light of said light-emitting means from said object to obtain a depth image using light intensity of the image picked up,
Dependencies are inferred from the claim text.