Added MPPLandmark

This commit is contained in:
Prianka Liz Kariat 2023-04-07 00:57:01 +05:30
parent 37334098b0
commit cfa261b34f
3 changed files with 237 additions and 0 deletions

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@ -54,3 +54,9 @@ objc_library(
"//third_party/apple_frameworks:UIKit", "//third_party/apple_frameworks:UIKit",
], ],
) )
objc_library(
name = "MPPLandmark",
srcs = ["sources/MPPLandmark.m"],
hdrs = ["sources/MPPLandmark.h"],
)

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@ -0,0 +1,126 @@
// Copyright 2023 The MediaPipe Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#import <Foundation/Foundation.h>
NS_ASSUME_NONNULL_BEGIN
/**
* Landmark represents a point in 3D space with x, y, z coordinates. The landmark coordinates are in
* meters. z represents the landmark depth, and the smaller the value the closer the world landmark
* is to the camera.
*/
NS_SWIFT_NAME(Landmark)
@interface MPPLandmark : NSObject
/** The x coordinates of the landmark. */
@property(nonatomic, readonly) float x;
/** The y coordinates of the landmark. */
@property(nonatomic, readonly) float y;
/** The z coordinates of the landmark. */
@property(nonatomic, readonly) float z;
/**
* Landmark visibility. Should be `nil` if not supported. Float score of whether landmark is visible
* or occluded by other objects. Landmark considered as invisible also if it is not present on the
* screen (out of scene bounds). Depending on the model, visibility value is either a sigmoid or an
* argument of sigmoid.
*/
@property(nonatomic, readonly, nullable) NSNumber *visibility;
/**
* Landmark presence. Should stay unset if not supported. Float score of whether landmark is present
* on the scene (located within scene bounds). Depending on the model, presence value is either a
* result of sigmoid or an argument of sigmoid function to get landmark presence probability.
*/
@property(nonatomic, readonly) NSNumber *presence;
/**
* Initializes a new `MPPLandmark` object with the given x, y and z coordinates.
*
* @param x The x coordinates of the landmark.
* @param y The y coordinates of the landmark.
* @param z The z coordinates of the landmark.
*
* @return An instance of `MPPLandmark` initialized with the given x, y and z coordinates.
*/
- (instancetype)initWithX:(float)x
y:(float)y
z:(float)z
visibility:(nullable NSNumber *)visibility
presence:(nullable NSNumber *)presence NS_DESIGNATED_INITIALIZER;
- (instancetype)init NS_UNAVAILABLE;
+ (instancetype)new NS_UNAVAILABLE;
@end
/**
* Normalized Landmark represents a point in 3D space with x, y, z coordinates. x and y are
* normalized to [0.0, 1.0] by the image width and height respectively. z represents the landmark
* depth, and the smaller the value the closer the landmark is to the camera. The magnitude of z
* uses roughly the same scale as x.
*/
NS_SWIFT_NAME(NormalizedLandmark)
@interface MPPNormalizedLandmark : NSObject
/** The x coordinates of the landmark. */
@property(nonatomic, readonly) float x;
/** The y coordinates of the landmark. */
@property(nonatomic, readonly) float y;
/** The z coordinates of the landmark. */
@property(nonatomic, readonly) float z;
/**
* Landmark visibility. Should be `nil` if not supported. Float score of whether landmark is visible
* or occluded by other objects. Landmark considered as invisible also if it is not present on the
* screen (out of scene bounds). Depending on the model, visibility value is either a sigmoid or an
* argument of sigmoid.
*/
@property(nonatomic, readonly, nullable) NSNumber *visibility;
/**
* Landmark presence. Should stay unset if not supported. Float score of whether landmark is present
* on the scene (located within scene bounds). Depending on the model, presence value is either a
* result of sigmoid or an argument of sigmoid function to get landmark presence probability.
*/
@property(nonatomic, readonly) NSNumber *presence;
/**
* Initializes a new `MPPNormalizedLandmark` object with the given x, y and z coordinates.
*
* @param x The x coordinates of the landmark.
* @param y The y coordinates of the landmark.
* @param z The z coordinates of the landmark.
*
* @return An instance of `MPPNormalizedLandmark` initialized with the given x, y and z coordinates.
*/
- (instancetype)initWithX:(float)x
y:(float)y
z:(float)z
visibility:(nullable NSNumber *)visibility
presence:(nullable NSNumber *)presence NS_DESIGNATED_INITIALIZER;
- (instancetype)init NS_UNAVAILABLE;
+ (instancetype)new NS_UNAVAILABLE;
@end
NS_ASSUME_NONNULL_END

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@ -0,0 +1,105 @@
// Copyright 2023 The MediaPipe Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#import "mediapipe/tasks/ios/components/containers/sources/MPPLandmark.h"
static const float kFloatDifferenceTolerance = 1e-6f;
@implementation MPPLandmark
- (instancetype)initWithX:(float)x
y:(float)y
z:(float)z
visibility:(NSNumber *)visibility
presence:(NSNumber *)presence {
self = [super init];
if (self) {
_x = x;
_y = y;
_z = z;
_visibility = visibility;
_presence = presence;
}
return self;
}
- (NSUInteger)hash {
return @(self.x).hash ^ @(self.y).hash ^ @(self.z).hash;
}
- (BOOL)isEqual:(nullable id)object {
if (!object) {
return NO;
}
if (self == object) {
return YES;
}
if (![object isKindOfClass:[MPPLandmark class]]) {
return NO;
}
MPPLandmark *otherLandmark = (MPPLandmark *)object;
return fabsf(otherLandmark.x - self.x) < kFloatDifferenceTolerance &&
fabsf(otherLandmark.y - self.y) < kFloatDifferenceTolerance &&
fabsf(otherLandmark.z - self.z) < kFloatDifferenceTolerance;
}
@end
@implementation MPPNormalizedLandmark
- (instancetype)initWithX:(float)x
y:(float)y
z:(float)z
visibility:(NSNumber *)visibility
presence:(NSNumber *)presence {
self = [super init];
if (self) {
_x = x;
_y = y;
_z = z;
_visibility = visibility;
_presence = presence;
}
return self;
}
- (NSUInteger)hash {
return @(self.x).hash ^ @(self.y).hash ^ @(self.z).hash;
}
- (BOOL)isEqual:(nullable id)object {
if (!object) {
return NO;
}
if (self == object) {
return YES;
}
if (![object isKindOfClass:[MPPNormalizedLandmark class]]) {
return NO;
}
MPPNormalizedLandmark *otherLandmark = (MPPNormalizedLandmark *)object;
return fabsf(otherLandmark.x - self.x) < kFloatDifferenceTolerance &&
fabsf(otherLandmark.y - self.y) < kFloatDifferenceTolerance &&
fabsf(otherLandmark.z - self.z) < kFloatDifferenceTolerance;
}
@end