Abstract: The present invention discloses a television virtual touch control method and system. The television virtual touch control method is used in a television having a depth camera and includes the following steps: acquiring a human body image having depth information by the depth camera in real time; presetting an area excluding a hand area in a human body area as a reference area; extracting the depth information of the reference area and the hand area from the human body image; defining a virtual touch surface between the depth camera and the reference area at a first predetermined distance D1 from the reference area; and determining whether the hand area touches or penetrates through the virtual touch surface according to the depth information of the hand area, the depth information of the reference area and the first predetermined distance D1. The present invention has the beneficial effects of improving touch sensitivity and enhancing user experience.

Abstract: The present disclosure relates to a full-field Z-direction displacement measurement system. Dynamic measurement is achieved on the basis of laser shearing speckle interferometry by using a spatial domain phase shift method. The homogeneity and similar measurement accuracy of the laser shearing speckle interferometry and the Doppler interferometry are further used to help the laser shearing speckle interferometry to implement absolute displacement measurement by using the single-point time domain Doppler interferometry. By means of the improvements in these aspects, the measurement system of the present invention can achieve full-field Z-direction displacement measurement, high-precision full-field absolute value vibration measurement and transient depth measurement, and can have important applications in depth measurement, three-dimensional sensing, vibration measurement in aerospace and the depth measurement in new material characterization detection and other fields.

Abstract: The present invention relates to a human body model acquisition method and a virtual network fitting system based on depth cameras. The method includes the following steps: step S1: generating mark points covering a model body surface and used for determining features of the model body surface on the model body surface, meanwhile collecting depth images of the model body from a plurality of angles by using the depth cameras to acquire a depth image sequence that covers the model body surface and contains the mark points; step S2: carrying target depth information point cloud grid reconstruction on frames of depth images in the depth image sequence; and step S3: mosaicing the reconstructed frames of depth images into a three-dimensional model of the model body according to the mark points in the reconstructed frames of depth images.

Abstract: The present disclosure relates to a dedicated ASIC chip system for optical three-dimensional sensing, including a DEPTH ENGINE module, a REGISTER PROCESSOR module, a controller module, a register module, an RGB CMOS driving module, an IR CMOS driving module, an AXI bus interface module, an APB bus interface module, an AXI/APB bridge module, a Flash storage driving module and a DDR3 storage driving module; and when non-optical three-dimensional data is processed, the control module sends an instruction to connect an external Flash memory for processing the non-optical three-dimensional data. When optical three-dimensional data is processed, the control module sends an instruction to simultaneously connect the external Flash memory and an external DDR3 memory for processing the optical three-dimensional data, so as to quickly process high-precision optical three-dimensional data, the resolution of an optical three-dimensional depth image obtained from the processing is high, and the delay is short.

Abstract: A dynamic phase acquisition device includes a light collecting opening, a semi-reflecting and semi-transmitting mirror, a phase shifter, a polarizer, a plane reflector, a photosensing element and a phase processor. In the dynamic phase acquisition device, light passes through the light collecting opening to the semi-reflecting and semi-transmitting mirror, and then is divided into two channels. One channel of the light sequentially passes through the phase shifter, the polarizer to the photosensing element, to form a first image; the other channel of the light, after being reflected by the plane reflector, directly passes through the polarizer to the photosensing element, to form a second image. The photosensing element sends the first image and the second image to the phase processor, and the phase processor obtains phase data; and a leading or lagging phase shift range of the phase shifter is 1 degree to 20 degrees.