摘要:
A camera with focus detecting and hand trembling detecting apparatus includes a focus detecting device for automatic focusing and a hand trembling detection circuit for detecting the hand trembling state of the camera. At the hand trembling detection by the hand trembling detection circuit, the automatic focusing is automatically switched from the servo mode to the one-shot mode, thus enabling exact hand trembling detection.
摘要:
A focus detection apparatus includes an optical system for forming first and second optical distributions associated with object images whose relative positional relationship is changed in accordance with an imaging state of an imaging optical system subjected to focus detection, a photoelectric conversion element, having a plurality of picture elements, for outputting first and second signals respectively corresponding to the first and second optical distributions, and a calculating unit for performing filter processing of the first and second signals, sequentially displacing the first and second signals relative to each other on the calculation basis, calculating an evaluation amount representing a coincidence between the first and second signals at the relatively displaced positions, obtaining positional deviations between the first and second object images on the basis of a change in evaluation amount, and detecting the imaging state of the imaging optical system on the basis of the deviations. The filter processing is performed using a filter determined by the relatively displaced positions.
摘要:
A camera having a camera-shake detecting device is arranged to make a display indicating that a shake of the camera is undetectable only in cases where the camera shake is consecutively found to be undetectable for a given number of times while a camera-shake detecting action is repeatedly performed. This arrangement effectively prevents the display from being flickered by alternate displays of an undetectable state and a detectable state if the undetectable state is displayed every time the undetectable state of camera shake takes place.
摘要:
The present invention provides a biological treatment method of biologically treating the subject water containing phenol, thiocyanate and the like, which improves the quality of treated water, while suppressing a reduction in treatment efficiency. As a means for achieving the aforementioned object, the present invention relates to a biological treatment method including introducing subject water containing a COD component, wherein the COD component is at least one of phenol and thiocyanate, into a biological treatment tank containing sludge containing bacteria capable of decomposing the COD component to thereby biologically treat the COD component with the bacteria, wherein, before the introduction of the subject water into the biological treatment tank, a step of counting the total number of bacteria contained in the sludge is carried out, so that the amount of the COD component loaded on a single bacterium per unit time can be controlled within a predetermined range.
摘要:
A digital signature generating apparatus generates a digital signature of digital data. The digital signature generating apparatus includes a receiving unit, the secret key changing unit and a digital signature generating unit. The receiving unit receives one of a first command and a second command. The first command includes information indicating one of a plurality of secret keys, and the plurality of secret keys are included in the digital signature generating apparatus. The secret key changing unit changes a secret key used by the digital signature generating apparatus to a secret key specified by the first command, if the first command is received by the receiving unit. The digital signature generating unit generates the digital signature of the digital data from a hash value extracted from the second command, if the second command is received by the receiving unit.
摘要:
A disclosed device detects an observer's visual axis bi-directionally, comprising a light receiver for receiving light from the observer's eyeball via multiple photoelectric transfer element arrays, a first storage means for storing positions of photoelectric transfer elements outputting signals representing Purkinje images; a second storage for referencing the photoelectric transfer signals originating from multiple photoelectric transfer elements arranged in the horizontal and vertical directions of the light receiver, and storing the positions of photoelectric transfer elements that indicate characteristic points representing the pupil of an eyeball, and a detector for detecting a view point using the positional information stored in the first and second storages.
摘要:
A line of sight detecting device which detects the line of sight of the user. The device includes a determination unit for determining whether the line of sight detection is successful or not. An estimation unit estimates the cause of failure if line of sight detection can not be carried out. A notification unit provides information about the cause of failure of the line of sight detection. The information being estimated by the estimation unit.
摘要:
Improved accuracy is contrived in a focus detecting device for finding the amount of correlation between signals corresponding to images received on first and second sensor arrays. A picture element signal of each sensor is duplicated and taken out as a signal of a double information amount, thereby enabling correlation calculation to be effected accurately.
摘要:
A device is provided device for detecting the line of sight of an observer, based on the positions of the Purkinje's image and of the center of the pupil circle. The device is capable, in determining the pupil circle from the pupil edge data collected from the image sensor, of preventing erroneous estimation of the pupil circle resulting from false noise data, by partially excluding or adding the edge data in the estimation process of the pupil circle and evaluating the reliability of the obtained estimated circle.
摘要:
This invention relates to a focus detecting apparatus using an area sensor as an AF sensor, and particularly provides a focus detecting apparatus in which when any area in a scene is designated and the focus state in that area is to be detected, the output from an area on the sensor corresponding to the designated area of the scene is read and processed on the basis of the information of an area on the area sensor corresponding to the designated area of the scene pre-memorized In a memory circuit.