Abstract: The image processing device of the present invention includes: an image acquiring section (2) acquiring image data; an image data generating section (32) generating attribute data including each attribute value indicative of an attribute to which each of a plurality of pixels constituting an image indicated by the image data acquired by the image acquiring section (2) belongs among predetermined attributes; and image data reducing section (34) reducing the attribute data by converting, to one attribute value, at least two attribute values included in the attribute data generated by the attribute data generating section, according to a priority given to the each attribute value. Therefore, it becomes possible to realize an image processing device that can reduce the attribute data while keeping important information included in the attribute data, and further improve encoding efficiency of the attribute data.

Abstract: A liquid crystal panel (20) provided in a liquid crystal display device of the present invention includes a plurality of optical sensor elements (30) each for detecting an intensity of light received, and has an area sensor function to detect an external input position by causing each of the optical sensor elements (30) to detect an image on the panel surface. The liquid crystal panel (20) includes the optical sensor elements (30) constituting an area sensor and a temperature compensating sensor (50) for carrying out temperature compensation of each of these optical sensor elements (30).

Abstract: A liquid crystal display device of the present invention includes a liquid crystal panel (20) having an area sensor function of detecting the position of an input from an outside source by detecting an image on a panel surface. The liquid crystal panel (20) has a plurality of light sensor elements (30) that detect the intensity of received light. The liquid crystal panel (20) is provided with: a light intensity sensor section (50), constituted by those ones of the light sensor elements (30) which are disposed in an outermost peripheral part of a display region (20a) of the liquid crystal panel (20), which detects the intensity of light in an environment where the device is placed; and visible light sensors (31A) and infrared light sensors (31B), constituted by those ones of the light sensor elements (30) other than those constituting the light intensity sensor section (50), which detect the position of an input from an outside source by the light sensor elements detecting an image on the panel surface.

Abstract: A touch position detection device includes (i) infrared light sensors and visible light sensors which are sensitive to light of respective different wavelengths, and (ii) an external light intensity calculation section which calculates an estimated value serving as an index of external light intensity, which is intensity of light in the surroundings of a target subject. As such, the touch position detection device is capable of appropriately detecting a position of a figure of the target subject under a broad range of ambient light intensities.

Abstract: The invention includes: a pixel-value vertical-gradient-quantity calculation section (3a) and a pixel-value horizontal-gradient-quantity calculation section (3b) for calculating, for each pixel in image data, a vertical-direction gradient quantity (Sy) and a horizontal-direction gradient quantity (Sx) for a pixel value; a gradient direction/null direction identifying section (5) for identifying, for each pixel, either a gradient direction or null direction from the vertical-direction gradient quantity (Sy) and the horizontal-direction gradient quantity (Sx); a score calculation section (10) for calculating an correspondence degree from a number of pixels for which a gradient direction contained in the matching region matches a gradient direction contained in the model pattern and a pattern correspondence degree which is a degree of similarity of a matching pattern between the gradient direction for each pixel in the matching region and the gradient direction for each pixel in the model pattern to a comparativ

Abstract: The invention includes: a pixel-value vertical-gradient-quantity calculation section (3a) and a pixel-value horizontal-gradient-quantity calculation section (3b) for calculating a vertical-direction gradient quantity (Sy) and a horizontal-direction gradient quantity (Sx) for a pixel value; a gradient direction/null direction identifying section (5) for identifying, for each pixel, either a gradient direction or null direction; a score calculation section (10) for calculating an correspondence degree for a matching region and a predetermined model pattern from a number of matches of a gradient direction for each pixel contained in the matching region with a gradient direction in the model pattern; a peak search section (12) for searching a search area for a peak pixel which is a pixel for which the correspondence degree calculated by the score calculation section (10) is a maximum; and a coordinate calculation section (14) for calculating a position in a captured image pointed at with an image capture object b

Abstract: The invention has an objective of detecting a position in a captured image pointed at with an image capture object with small memory and short processing time by using image data for only one frame, irrespective of detection of a touch/non-touch of the captured image with the image capture object.

Abstract: An input image is subjected to image region determination in a unit of prescribed block. Based on a result of image region determination, two or more pieces of layer data, of which validity or invalidity at the time of reproduction of the image is defined in a unit of prescribed block are generated by using data of the input image. Then, each of the two or more pieces of layer data is subjected to coding processing under a coding condition suitable for each of the generated two or more pieces of layer data, in a unit of block suitable for each of the two or more pieces of layer data.

Abstract: The image processing device of the present invention includes: an image acquiring section (2) acquiring image data; an image data generating section (32) generating attribute data including each attribute value indicative of an attribute to which each of a plurality of pixels constituting an image indicated by the image data acquired by the image acquiring section (2) belongs among predetermined attributes; and image data reducing section (34) reducing the attribute data by converting, to one attribute value, at least two attribute values included in the attribute data generated by the attribute data generating section, according to a priority given to the each attribute value. Therefore, it becomes possible to realize an image processing device that can reduce the attribute data while keeping important information included in the attribute data, and further improve encoding efficiency of the attribute data.

Abstract: An image compression device includes a quantization table storing portion storing a first quantization table and a second quantization table prepared by adjusting the first quantization table with a spatial filter, a frequency converter performing frequency conversion on input image data, a quantizer quantizing the data subjected to the frequency conversion, using the second quantization table, an encoder encoding the quantized data, and an output portion outputting the encoded data and the first quantization table in a correlated fashion.

Abstract: An input image is subjected to image region determination in a unit of prescribed block. Based on a result of image region determination, two or more pieces of layer data, of which validity or invalidity at the time of reproduction of the image is defined in a unit of prescribed block are generated by using data of the input image. Then, each of the two or more pieces of layer data is subjected to coding processing under a coding condition suitable for each of the generated two or more pieces of layer data, in a unit of block suitable for each of the two or more pieces of layer data.