摘要:
A display apparatus is provided. The display apparatus according to an exemplary embodiment includes a display, and a processor configured to generate a second image and a third image where a dynamic range is expanded by respectively applying a first gain and a second gain to an input first image, generate a degraded image of the second image by applying a predetermined degradation model to the second image, based on a difference value between a pixel of the degraded second image and a pixel of the third image satisfying a predetermined condition, modify a pixel value of the second image based on the difference value, and output the second image where the pixel value is modified through the display.
摘要:
A method of providing notification information includes: obtaining information regarding a sensing region; determining a visible region and a non-visible region within the sensing region; and providing notification information regarding the non-visible region.
摘要:
Disclosed are a coded video data processing method and apparatus which consider a random access, and a coded video data generating method and apparatus which consider a random access. The coded video data processing method includes obtaining a bitstream of coded video data, obtaining metadata information used for video-processing of pictures having a decoding order after a random access point picture in the bitstream, and performing video-processing on decoded video data among the pictures having the decoding order after the random access point picture, based on the metadata information.
摘要:
Provided is an acousto-optic device including an elastic medium; a meta structure formed on a first surface of the elastic medium, and an elastic-wave generating unit which generates an elastic wave in the elastic medium. The meta structure includes a first layer and a second layer that is formed on the first layer. The at least one of the first layer and the second layer includes a predetermined repetitive pattern.
摘要:
Display apparatus and method are provided. The display apparatus may include a receiver for receiving an image; a grouper for analyzing the received image and grouping a plurality of frames of the received image based on the analysis; a depth allocator for determining at least two key frames from a plurality of frames grouped into at least one group, and allocating a depth per object in the determined key frames; and an image generator for generating a 3D image corresponding to other frames excluding the key frames based on a depth value allocated to the key frames. Hence, the display apparatus can allocate the depth value of a higher quality to the object in the frames of the received image.
摘要:
Provided is an apparatus for generating an image, the apparatus including a processor configured to detect at least one object near a vehicle by using a result of sensing a surrounding area of the vehicle, determine a direction and a distance from the vehicle to the detected at least one object, and generate an image of the surrounding area of the vehicle based on the determined direction and distance. Therefore, the apparatus may accurately express a shape of the object and a relative location between the vehicle and the object on a three-dimensional (3D) image of the surrounding area of a vehicle.
摘要:
Provided are an acousto-optic element, an acousto-optic element array, and a display apparatus including the acousto-optic element array. The acousto-optic element includes: an acousto-optic modulator which includes an acousto-optic layer formed of an acousto-optic material; a light supplier which supplies light to the acousto-optic modulator in a first direction; a first sound-wave modulator which applies first elastic waves to the acousto-optic modulator in a second direction; and a second sound-wave modulator which applies second elastic waves to the acousto-optic modulator in a third direction. The light supplied from the light supplier to the acousto-optic modulator is deflected by diffraction caused by the first elastic waves applied from the first sound-wave modulator and diffraction caused by the second elastic waves applied from the second sound-wave modulator, and is output from the acousto-optic modulator through a front side of the acousto-optic modulator.
摘要:
An acousto-optic device capable of increasing a range of a diffraction angle of output light by using a nanostructured acousto-optic medium, and an optical scanner, an optical modulator, a two-dimensional/three-dimensional (2D/3D) conversion stereoscopic image display apparatus, and a holographic display apparatus using the acousto-optic device. The acousto-optic device may include a nanostructured acousto-optic medium formed by at least two different mediums repeatedly alternating with each other, wherein at least one of the at least two different mediums includes an acousto-optic medium. The acousto-optic device having the aforementioned structure may increase the range of a diffraction angle of output light. Thus, various systems such as the optical scanner, the optical modulator, the 2D/3D conversion stereoscopic image display apparatus, and the holographic display apparatus may not require a separate optical system to increase an operational angle range, thereby decreasing a size of the system and/or improving a resolution of the system.
摘要:
An apparatus for displaying a holographic three-dimensional (3D) image is provided. The apparatus includes: a holographic pattern generation unit; a spatial optical modulation device including a phase transition layer formed of a phase transition material, a phase of which is changed by a temperature. A holographic pattern generated by the holographic pattern generation unit is optically addressed on the spatial optical modulation device. The apparatus also includes a heat source for applying heat to the phase transition layer; a control unit for controlling the heat source according to holographic pattern information generated by the holographic pattern generation unit; and a reproduction light source for irradiating light for image reproduction onto the spatial optical modulation device.
摘要:
A plasmonic modulator and an optical apparatus including the same are provided. The plasmonic modulator includes a first metal layer, and a second metal layer facing the first metal layer. The plasmonic modulator further includes a refractive index varying layer disposed between the first and second metal layers and including a varying refractive index, and an insulating nitride layer disposed between the refractive index varying layer and the first metal layer.