Abstract: The present application provides a method and device for determining input information, and relates to the field of a wearable device. The method comprises in response to a first part of a body of a user executing an action, acquiring target blood-flow information about the first part or a second part that corresponds to the first part; and determining input information according to the target blood-flow information and reference information. According to the method and device, the body of the user is used as an input interface, to cause an interaction area to be increased, which helps to improve input efficiency and user experience.

Abstract: The present application provides methods and devices for determining an action and/or an action part, and generally relates to the field of wearable devices. A method disclosed herein comprises: in response to that a first part on a body of a user executes an action, acquiring target blood flow information of the first part or a second part corresponding to the first part; and determining the first part and/or the action according to the target blood flow information and reference information. The methods and devices provide a new scheme for recognizing an action and/or an action part.

Abstract: An optical parameter of an eye is detected using an image collection apparatus that collects an image presented by a fundus. An imaging apparatus adjusts an imaging parameter of an optical path between an eye and the image collection apparatus, wherein the image collection apparatus obtains a clearest image that satisfies a defined clarity criterion or condition. An image processing apparatus processes the clearest image to obtain an optical parameter of the eye. The image of the fundus is captured, and an imaging parameter known in the optical path when the clearest image is captured is found, so that a direction currently being watched by the eye and a distance between the eye and a focusing point can be obtained through optical calculation. Consequently, a position of the focusing point of the eye can be determined precisely for a wide range of concurrent applications for eye control interaction.

Abstract: Disclosed are an interactive projection display method and an interactive projection display system. The method comprises: obtaining to-be-displayed location information corresponding to a coordination device; obtaining display information corres-ponding to the coordination device; generating, according to the display information, virtual display content corresponding to the coordination device; and projecting the virtual display content to a location corresponding to the to-be-displayed location information at a fundus of a user. According to the method and the system, virtual display content, used to interact with a user, of a coordination device is projected near the coordination device, to cause interaction between the user and the coordination device to be more convenient.

Abstract: This application discloses a vision protection imaging system and method. The system comprises: an adjustable lens module, configured to form an image of an object viewed by an eye; an imaging parameter adjustment module, configured to adjust an imaging parameter of the adjustable lens module according to a time pattern and an adjustment criterion; and a lens adjustment module, configured to adjust the adjustable lens module according to the imaging parameter. In the system and method of this application, an imaging parameter of the adjustable lens module is adjusted according to a time pattern and an adjustment criterion, so that an optical system of an eye is adjusted accordingly as well, thereby exercising the eye. Besides, the system and method have low costs, are easy to implement, and do not affect work, study, entertainment, or the like being currently performed by a user.

Abstract: Embodiments of the present application disclose time division display control methods and apparatus and display devices, wherein a time division display control method disclosed comprises: displaying a first image by a display device; and changing display pixel distribution of the display device at least once within a preset permitted staying duration of vision of human eyes and displaying the first image by the display device changed each time, to cause the displayed first images to be displayed in human eyes as a second image in an overlapped manner. According to the present application, utilization of display pixels of a display device and a display quality of at least a local part of an image can be improved, thereby better meeting diversified actual application demands of users.

Abstract: Embodiments of the present application disclose various light field display control methods and apparatuses and various light field display devices, wherein a light field display control method disclosed comprises: sampling a source image according to interest level distribution information of the source image; determining a light field image corresponding to the sampled source image; adjusting display pixel density distribution of a display of a light field display device at least according to the interest level distribution information; and displaying the light field image via the adjusted light field display device. The technical solution provided in the embodiments of the present application can make full use of pixels of the display of the light field display device to present differential spatial resolution of different regions of a light field display image.

Abstract: Embodiments of the present application disclose light field collection control methods and apparatuses and light field collection devices, wherein one light field collection control method comprises: acquiring an aperture parameter of a main lens of a light field camera; determining, according to the main lens aperture parameter, in an image sensor of the light field camera, a local part of an imaging region corresponding to at least one sub-lens in a sub-lens array of the light field camera as a first imaging region; adjusting pixel density distribution of the image sensor, to cause pixel density of the first imaging region after adjustment to be distinguished from that of other parts of the imaging region; and performing light field collection on a scene via the adjusted light field camera.

Abstract: Embodiments of the present application disclose various light field display control method and apparatus and a light field display device. The optical field display control method comprises: adjusting display pixel density distribution of a display of a light field display device; performing sampling processing on a light field image according to location information of display pixels of the display after the adjustment; and displaying, by the optical field display device after the adjustment, the optical field image undergone the sampling processing. The technical solution provided in the embodiments of the present application can present differential spatial resolution of different regions of a light field display image by fully using pixels of a display of a light field display device.

Abstract: The present application discloses a user information acquisition method and a user information acquisition apparatus. The method comprises: acquiring an image comprising at least one digital watermark; acquiring user related information corresponding to a current user and comprised in the at least one digital watermark, wherein the user related information comprises application startup information used to start a corresponding application; and projecting the user related information to a fundus of the user. The present application enables a user to start a corresponding application rapidly, securely, and conveniently.

Abstract: The application discloses an information exchange method and an information exchange system, the method including: overlaying at least one decoding template onto an encoded pattern in at least one eye fundus of a user, to obtain a recovery pattern presented in the at least one eye fundus of the user, where the recovery pattern corresponds to an original pattern of the encoded pattern, and the at least one decoding template corresponds to at least one encoder used when the encoded pattern is obtained. According to the technical solutions of the embodiments of this application, an encoded pattern is decoded by overlaying a decoding template to an encoded pattern in at least one eye fundus of a user, so that a specific user can conveniently and intuitively see information hidden in the encoded pattern directly on the spot.

Abstract: Embodiments of the present application disclose various light-communication sending methods and apparatus, various light-communication receiving methods and apparatus, and various light communication systems. A light-communication sending method comprises: acquiring a first region of an image; determining, according to the first region, information about density distribution of communication information that is to be modulated to light emitted by a light source; and controlling the light source to display the image, and during displaying of the image, modulating, according to the information about the density distribution of the communication information, the communication information to the light emitted by the light source.

Abstract: Embodiments of the present application disclose various light field display control methods and apparatus, and various light field display devices. One of the methods comprises: determining a first display region of a display of a light field display device according to target vision adjustment range information; adjusting display pixel density distribution of the display, to cause that display pixel density distribution of the first display region in the display after the adjustment is different from that of another display region of the display; performing sampling processing on a first light field image according to location information of display pixels of the display after the adjustment, the first light field image being corresponding to vision information in the target vision adjustment range and related to a source image; and displaying, by the light field display device after the adjustment, the first light field image undergone the sampling processing.

Abstract: Embodiments of the present application provide various image display control methods and apparatus, and various display devices. One of the image display control methods comprises: acquiring target pixel density distribution information displayed by an image; adjusting display pixel density distribution of a display according to the target pixel density distribution information; and displaying the image according to the adjusted display. The technical solutions provided in the embodiments of the present application can fully use overall display pixels of a display to differently present display definition of different regions in an image and improve actual usage of the display pixels, which can better meet diversified application needs of a user.

Abstract: A method for distributing a video program to first and second devices is disclosed. The method comprises receiving a request for the video program from one of the first and second devices both registered in an account at the server; transmitting the video program, but not information related to the video program, to a first selected one of the two devices according to a distance between the two devices; and transmitting the information related to the video program, but not the video program, to a second selected one of the two devices according to the distance.

Abstract: It is provided a method for detecting an object in a left view image and a right view image, comprising steps of receiving the left view image and the right view image; detecting a coarse region containing the object in one image of the left view image and the right view image; detecting the object within the detected coarse region in the one image; determining a coarse region in the other image of the left view image and the right view image based on the detected coarse region in the one image and offset relationship indicating position relationship of the object in a past left view image and a past right view image; and detecting the object within the determined coarse region in the other image.

Abstract: Embodiments of the present application disclose a method and an apparatus for obtaining vibration information and user equipment.

Abstract: Embodiments of the present application provide a visible light signal receiving and control method, a control apparatus, and a receiving device. The method comprises: determining a communication performance between a visible light signal receiving device and at least one visible light signal transmit device; and in response to an increase in the communication performance between the visible light signal receiving device and the at least one visible light signal transmit device, combining two first logic pixel units of an image sensor related to the at least one visible light signal transmit device as one second logic pixel unit to be read, when reading an inductive charge of the image sensor of the visible light signal receiving device.

Abstract: Embodiments of the present application disclose various methods and an apparatus for controlling light field capture. One method for controlling light field capture comprises: determining, at least according to at least one sub-lens that affects imaging of a first region in a sub-lens array of a light field camera, at least one first sub-lens to be adjusted, the first region being a part of a scene to be shot; determining an object refocusing accuracy of a light field image section captured by the first sub-lens in a light field image of the scene to be shot; adjusting, according to the object refocusing accuracy, a light field capture parameter of the first sub-lens; and performing, based on the light field camera after being adjusted, light field capture on the scene to be shot.

Abstract: Embodiments of the present application disclose a method and an apparatus for obtaining vibration information and user equipment. The method comprises: obtaining at least one reflected electromagnetic wave signal, wherein the at least one reflected electromagnetic wave signal is formed by reflecting an electromagnetic wave signal by at least one electromagnetic wave reflective module when the at least one electromagnetic wave reflective module vibrates in response to a sound in an environment; analyzing the at least one reflected electromagnetic wave signal to obtain at least one piece of vibration information corresponding to the at least one reflected electromagnetic wave signal.