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Reply to How to get real world distance with/from LiDAR ?
Hi, I'm working with same sample Capturing Depth Using the LiDAR Camera. Long distance is ok, but when its < 1 meter, data is not accurate. What is the recommendation to measure distance from 0.2 meter to 1 meter. Here is code: let depthData = syncedDepthData.depthData.converting(toDepthDataType: kCVPixelFormatType_DepthFloat16) let depthMapWidth = CVPixelBufferGetWidthOfPlane(depthData.depthDataMap, 0) let depthMapHeight = CVPixelBufferGetHeightOfPlane(depthData.depthDataMap, 0) let centerX = depthMapWidth / 2 let centerY = depthMapHeight / 2 print("Depth value at the center (x,y): \(centerX) \(centerY)") CVPixelBufferLockBaseAddress(depthData.depthDataMap, .readOnly) if let rowData = CVPixelBufferGetBaseAddress(depthData.depthDataMap)?.assumingMemoryBound(to: Float16.self) { let depthPoint = rowData[centerY * depthMapWidth + centerX] let depthPoint1 = rowData[centerY * depthMapWidth + centerX + 10] let depthPoint2 = rowData[centerY * depthMapWidth + centerX + 100] print("Depth value at the center in meters: \(depthPoint) \(depthPoint1) \(depthPoint2) meters") } CVPixelBufferUnlockBaseAddress(depthData.depthDataMap, .readOnly)
Topic: App & System Services SubTopic: Core OS Tags:
Jul ’23
Reply to How to get real world distance with/from LiDAR ?
Hi, I'm working with same sample Capturing Depth Using the LiDAR Camera. Long distance is ok, but when its < 1 meter, data is not accurate. What is the recommendation to measure distance from 0.2 meter to 1 meter. Here is code: let depthData = syncedDepthData.depthData.converting(toDepthDataType: kCVPixelFormatType_DepthFloat16) let depthMapWidth = CVPixelBufferGetWidthOfPlane(depthData.depthDataMap, 0) let depthMapHeight = CVPixelBufferGetHeightOfPlane(depthData.depthDataMap, 0) let centerX = depthMapWidth / 2 let centerY = depthMapHeight / 2 print("Depth value at the center (x,y): \(centerX) \(centerY)") CVPixelBufferLockBaseAddress(depthData.depthDataMap, .readOnly) if let rowData = CVPixelBufferGetBaseAddress(depthData.depthDataMap)?.assumingMemoryBound(to: Float16.self) { let depthPoint = rowData[centerY * depthMapWidth + centerX] let depthPoint1 = rowData[centerY * depthMapWidth + centerX + 10] let depthPoint2 = rowData[centerY * depthMapWidth + centerX + 100] print("Depth value at the center in meters: \(depthPoint) \(depthPoint1) \(depthPoint2) meters") } CVPixelBufferUnlockBaseAddress(depthData.depthDataMap, .readOnly)
Topic: App & System Services SubTopic: Core OS Tags:
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Jul ’23