238000006011 modification reaction Methods 0.000 claims description 5.230000004048 modification Effects 0.000 claims description 5.Assignors: THURIES, SERGE Publication of US20170150124A1 publication Critical patent/US20170150124A1/en Application granted granted Critical Publication of US10225544B2 publication Critical patent/US10225544B2/en Status Active legal-status Critical Current Adjusted expiration legal-status Critical Links ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority to US201562257322P priority Critical Application filed by Hand Held Products Inc filed Critical Hand Held Products Inc Priority to US15/354,008 priority patent/US10225544B2/en Assigned to HAND HELD PRODUCTS, INC. Original Assignee Hand Held Products Inc Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) ( en Inventor Serge Thuries Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Granted Application number US15/354,008 Other versions US10225544B2 Google Patents US20170150124A1 - High resolution dot pattern The results show that this method has advantages over the time-of-flight camera and Kinect, particularly in terms of precision.US20170150124A1 - High resolution dot pattern We also evaluate this method in actual experiments. In the experiment, we show the effectiveness of the proposed method. This matching method does not require an extra optimization method with high computational complexity. Based on these two properties, we propose an improved phase-difference corresponding method, which is divided into two steps: the coarse matching step to estimate the approximate coordinates of pixels in the pattern via analyzing the phase values of the image, and the fine matching step to compensate errors of the coarse matching results and to achieve subpixel accuracy. The density of speckles in the pattern is periodic and the positions of them are random. The adopted binary pattern can simplify pattern projecting devices compared with the patterns that use color. In this paper, we propose a new spatial encoding method that integrates the random binary pattern and the improved phase-difference-matching method to acquire a dense and precise depth map. Note: Author names will be searched in the keywords field, also, but that may find papers where the person is mentioned, rather than papers they authored.Use a comma to separate multiple people: J Smith, RL Jones, Macarthur.Use these formats for best results: Smith or J Smith.For best results, use the separate Authors field to search for author names.Use quotation marks " " around specific phrases where you want the entire phrase only.Question mark (?) - Example: "gr?y" retrieves documents containing "grey" or "gray".
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