Abstract: An image processing system according to an embodiment includes a cart having a first processor and a camera mounted on the cart. The camera photographs an object and generates an image. The first processor corrects focus of the camera based on correction information to bring the camera into focus with the object to be photographed. A second processor: calculates a standard deviation and an entropy based on tone information of pixels in the image, calculates a ratio between the standard deviation and the entropy, compares the ratio and a reference value, determines the correction information based on the comparison result, and provides the correction information to the first processor.

Abstract: An image processing system according to an embodiment includes a cart having a first processor and a camera mounted on the cart. The camera photographs an object and generates an image. The first processor corrects focus of the camera based on correction information to bring the camera into focus with the object to be photographed. A second processor: calculates a standard deviation and an entropy based on tone information of pixels in the image, calculates a ratio between the standard deviation and the entropy, compares the ratio and a reference value, determines the correction information based on the comparison result, and provides the correction information to the first processor.

Abstract: An article image capturing apparatus according to an embodiment includes a camera that captures an image of an article. A first lighting unit illuminates a first side of the article facing the camera. The article is positioned between a second lighting unit and the camera. The second lighting unit illuminates a second side of the article. The camera captures a first image of the surface when the first lighting unit is turned on. The camera captures a second image of the surface when the first lighting unit is turned off and the second lighting unit is turned on. A processor determines, based on the second image, an outer shape of the article. The processor extracts, from the first image, an image of the article based on the outer shape of the article. A storage device saves the extracted image of the article.

Abstract: According to one embodiment, an image processing apparatus includes a dividing unit, a calculating unit, a determining unit, and an output unit. The dividing unit is configured to divide an image into a plurality of regions. The calculating unit is configured to calculate a standard deviation and an entropy per region divided by the dividing unit based on tone information of pixels comprising each region, and calculate a ratio between the standard deviation and the entropy. The determining unit is configured to determine a region in which the ratio exceeds a reference value. The output unit is configured to output information based on a determination result obtained by the determining unit.

Abstract: An image processing system according to an embodiment includes a cart having a first processor and a camera mounted on the cart. The camera photographs an object and generates an image. The first processor corrects focus of the camera based on correction information to bring the camera into focus with the object to be photographed. A second processor: calculates a standard deviation and an entropy based on tone information of pixels in the image, calculates a ratio between the standard deviation and the entropy, compares the ratio and a reference value, determines the correction information based on the comparison result, and provides the correction information to the first processor.

Abstract: According to one embodiment, an image processing apparatus includes a dividing unit, a calculating unit, a determining unit, and an output unit. The dividing unit is configured to divide an image into a plurality of regions. The calculating unit is configured to calculate a standard deviation and an entropy per region divided by the dividing unit based on tone information of pixels comprising each region, and calculate a ratio between the standard deviation and the entropy. The determining unit is configured to determine a region in which the ratio exceeds a reference value. The output unit is configured to output information based on a determination result obtained by the determining unit.

Abstract: According to one embodiment, an image processing apparatus includes an operation unit, a comparative determination unit, and an output unit. The operation unit is configured to calculate a standard deviation and an entropy based on tone information of pixels comprising an image, and calculate a ratio between the standard deviation and the entropy. The comparative determination unit is configured to compare the ratio and a reference value. The output unit is configured to output a comparison result obtained by the comparative determination unit.

Abstract: According to one embodiment, an image processing apparatus includes an operation unit, a comparative determination unit, and an output unit. The operation unit is configured to calculate a standard deviation and an entropy based on tone information of pixels comprising an image, and calculate a ratio between the standard deviation and the entropy. The comparative determination unit is configured to compare the ratio and a reference value. The output unit is configured to output a comparison result obtained by the comparative determination unit.

Abstract: An optical disc device includes a laser diode which irradiates an optical disc having a plurality of layers with laser light, a photodetection section which detects laser light reflected by the optical disc, which comprising a pair of sub-photodetectors and a main photodetector provided between the pair of sub-photodetectors, a focus error signal generation circuit which generates a focus error signal from a photodetection signal output by the main photodetector, a tracking error generation circuit which generates a tracking error signal from the photodetection signal output by the main photodetector and a photodetection signal output by the pair of sub-photodetectors, and a layer determination signal processing circuit which generates a layer determination signal from the photodetection signal output by the pair of sub-photodetectors and determines in which of the layers a focus of the laser light is located, on the basis of the layer determination signal and focus error signal.

Abstract: An optical disc device includes a laser diode which irradiates an optical disc having a plurality of layers with laser light, a photodetection section which detects laser light reflected by the optical disc, which comprising a pair of sub-photodetectors and a main photodetector provided between the pair of sub-photodetectors, a focus error signal generation circuit which generates a focus error signal from a photodetection signal output by the main photodetector, a tracking error generation circuit which generates a tracking error signal from the photodetection signal output by the main photodetector and a photodetection signal output by the pair of sub-photodetectors, and a layer determination signal processing circuit which generates a layer determination signal from the photodetection signal output by the pair of sub-photodetectors and determines in which of the layers a focus of the laser light is located, on the basis of the layer determination signal and focus error signal.

Abstract: According to one embodiment, an optical pickup apparatus and an optical information recording/reproducing apparatus including an embodiment of the present invention has an objective lens for condensing a laser beam on a recording surface of an information recording medium (an optical disc), a collimator lens for collimating a laser beam guided to an objective lens, a magnification change lens which gives a predetermined convergency to a laser beam guided from a light source to a collimator lens, and leaves divergence after the laser beam passes a collimator lens, and an optical path length correction mechanism for changing an optical path length of a reflected laser beam that is a laser beam condensed and reflected from a recording surface of a medium through a magnification change lens.

Abstract: There is disclosed an optical pickup device having semiconductor laser light sources for first, second, and third wavelengths different from each other. After optical paths of laser beams outgoing from the first and second semiconductor laser light sources are synthesized by a first prism, an optical path of a laser beam outgoing from the third semiconductor laser light source is synthesized, through a magnification change lens, to raise light efficiency. At this time, each of the laser beams is synthesized by a second prism.

Abstract: An optical head apparatus is disclosed, that comprises a first optical system having a first objective lens (20) and a low power output laser device (24) and a second optical system having a second objective lens (30) and a high power output laser device (37). The focal length of the first objective lens (20) is different from the focal length of the second objective lens (30). One of these optical systems is selected corresponding to the type of an optical disc for use. The energy use efficiency of laser beam of the optical head apparatus with the above-described structure is higher than that of an apparatus using a multi-focus lens. Thus, without need to use a light source having a high light intensity, data of various optical discs can be accurately reproduced. In addition, data can be more accurately and rapidly recorded on various optical discs with different record densities.