Provided are an image acquisition device and a method for adjusting a focus position using the same, which can acquire an accurate focus position without a decrease in light amount incident in an image photographing sensor. The image acquisition device according to an exemplary embodiment of the present invention includes: a first sensor collecting some of the beams projected from a sample to generate a first image; and a second sensor collecting at least some of the remaining beams of the beams projected from the sample to generate a second image for measuring a focus position, in which a focus of the first sensor is adjusted by the focus position measured by using the second sensor.

According to some embodiments, a processor reads a force from a touch control. Hysteretic behavior is provided through at least three different actuation states and at least four different force threshold values, allowing user-friendly control of disparate actions through one touch interface with applications in volume control, photography, and user authentication. Other possibilities are shown and discussed.

A control apparatus includes a tilt driving unit configured to tilt at least one of an image sensor and an imaging optical system relative to a plane orthogonal to an optical axis, a focus driving unit configured to perform focus driving by moving a focus lens that constitutes at least part of the imaging optical system in an optical axis direction, and a controlling unit configured to control the focus driving unit and the tilt driving unit so as to adjust a focal plane to a predetermined surface. The controlling unit moves the focal plane in a vertical direction to the focal plane while maintaining the focal plane substantially parallel to the predetermined plane.

A depth measuring apparatus includes a camera assembly configured to capture a plurality of images of a target at a plurality of distances from the target. The depth measuring apparatus further includes a controller configured to, for each of a plurality of regions within the plurality of images: determine corresponding gradient values within the plurality of images; determine a corresponding maximum gradient value from the corresponding gradient values; and determine, based on the corresponding maximum gradient value, a depth measurement for a region of the plurality of regions.

Techniques are described for passive three-dimensional (3D) image sensing based on chromatic differentiation. For example, an object can be imaged by using a photodetector array to detect light reflected off of the object and focused through a lens onto the array. Light components of different wavelengths tends to be focused through the lens to different focal lengths, which can tend to impact the brightness of each wavelength as detected. For example, if the detector array is closer to a shorter-wavelength focal plane, a white spot will tend to be detected with a higher magnitude of blue light components than of red light components. Ratios of brightness magnitudes for different wavelengths vary in a manner that strongly correlates to object distance from the lens. Embodiments exploit this correlation to passively detect object distance. Some embodiments further provide various types of distance and/or chromatic calibration to further facilitate such detection.

Systems and techniques are provided for processing image data. According to some aspects, a process can include obtaining a frame captured using an image sensor of a device. The process can include detecting an orientation of the device using a position sensor. The process can further include determining, based on the orientation, a transform to be applied to a region of interest in the frame. The process can include applying the transform to the region of interest. The process can further include providing the transformed region of interest to the object detection algorithm.

An imaging device includes an image sensor configured to capture a subject image at a predetermined frame rate and generate imaging data for each frame; and a controller configured to control a display to display a captured image corresponding to the imaging data for each frame, wherein first follow-up information can be displayed on the captured image in the display with a frame delay to indicate a result of a first follow-up operation of following a subject on the captured image, and the controller generates second follow-up information that is displayed in a delay period shorter than the frame delay of the first follow-up information to indicate a result of a second follow-up operation different from the first follow-up operation.

An imaging device 10 according to one aspect of the present invention includes: a subject distance acquisition section 115; a movement amount acquisition section 120 that acquires an amount of movement of the subject on the basis of the subject distance; a restoration processing determination section 125 that determines, on the basis of the amount of movement acquired by the movement amount acquisition section 120, whether the restoration processing should be performed on the images through a restoration filter, a restoration strength of the restoration processing should be adjusted and the restoration processing should be performed on the images, or the restoration processing should not be performed on the images; and a restoration processing execution section 105 that performs the restoration processing on the images through the restoration filter or with the adjusted restoration strength, on the basis of the determination of the restoration processing determination section 125.

One embodiment of the present invention provides an image processing method, the method comprising: acquiring a plurality of viewpoint images; generating a contrast distribution from the plurality of viewpoint images; and generating an output image by performing image processing in accordance with the contrast distribution with respect to an image based on the plurality of viewpoint images.

An image processing apparatus (image processing circuit 125) includes a determiner (125a) that determines a weight coefficient which varies depending on a position in each of a plurality of parallax images and an image generator (125b) that synthesizes the plurality of parallax images based on the weight coefficient to generate an image.